From: no author <no.author@nowhere.it>
Date: Mon, 6 Nov 2000 14:02:43 +0000 (+0000)
Subject: This commit was manufactured by cvs2svn to create branch
X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=commitdiff_plain;h=refs%2Fheads%2Flablgtk_gtkmathview;p=helm.git

This commit was manufactured by cvs2svn to create branch
'lablgtk_gtkmathview'.
---

diff --git a/helm/configuration/install b/helm/configuration/install
deleted file mode 100755
index 5b19af19d..000000000
--- a/helm/configuration/install
+++ /dev/null
@@ -1,18 +0,0 @@
-#!/bin/sh
-
-echo "********************************************************"
-echo "* Insert the root dir \$root                           *"
-echo "* Files will be installed in \$root/local/lib/helm and *"
-echo "* in \$root/local/lib/etc/helm/                        *"
-echo "********************************************************"
-echo -n "\$root="
-read ROOT "buondi"
-
-echo cp local/lib/helm/configuration.pl $ROOT/local/lib/helm/
-cp local/lib/helm/configuration.pl $ROOT/local/lib/helm/
-
-echo cp local/etc/helm/configuration.xml $ROOT/local/etc/helm/
-cp local/etc/helm/configuration.xml $ROOT/local/etc/helm/
-
-echo cp local/etc/helm/configuration.dtd $ROOT/local/etc/helm/
-cp local/etc/helm/configuration.dtd $ROOT/local/etc/helm/
diff --git a/helm/configuration/local/etc/helm/configuration.dtd b/helm/configuration/local/etc/helm/configuration.dtd
deleted file mode 100644
index 2a2428d1d..000000000
--- a/helm/configuration/local/etc/helm/configuration.dtd
+++ /dev/null
@@ -1,34 +0,0 @@
-<?xml encoding="ISO-8859-1"?>
-
-<!--*****************************************************************-->
-<!-- DTD FOR HELM CONFIGURATION FILE:                                -->
-<!--  First draft: June 6 2000, Claudio Sacerdoti Coen               -->
-<!--  Last Revision: June 6 2000, Claudio Sacerdoti Coen             -->
-<!--*****************************************************************-->
-
-<!ELEMENT configuration (helm_dir, dtd_dir, servers_file, uris_dbm, dest,
-			 indexname, tmpdir, helm_url_path,
-                         getheader_url, style_url, webeq_url, webeqp_url,
-                         use_webeqp_url, html_link, getter_url)>
-
-<!ENTITY % expr '(#PCDATA | value-of)*'>
-
-<!ELEMENT value-of EMPTY>
-<!ATTLIST value-of
-	var NMTOKEN #REQUIRED >
-
-<!ELEMENT helm_dir       %expr;>
-<!ELEMENT dtd_dir        %expr;>
-<!ELEMENT servers_file   %expr;>
-<!ELEMENT uris_dbm       %expr;>
-<!ELEMENT dest           %expr;>
-<!ELEMENT indexname      %expr;>
-<!ELEMENT tmpdir         %expr;>
-<!ELEMENT helm_url_path  %expr;>
-<!ELEMENT getheader_url  %expr;>
-<!ELEMENT style_url      %expr;>
-<!ELEMENT webeq_url      %expr;>
-<!ELEMENT webeqp_url     %expr;>
-<!ELEMENT use_webeqp_url %expr;>
-<!ELEMENT html_link      %expr;>
-<!ELEMENT getter_url     %expr;>
diff --git a/helm/configuration/local/etc/helm/configuration.xml b/helm/configuration/local/etc/helm/configuration.xml
deleted file mode 100644
index 1e4594bf1..000000000
--- a/helm/configuration/local/etc/helm/configuration.xml
+++ /dev/null
@@ -1,22 +0,0 @@
-<?xml version="1.0" encoding="ISO-8859-1"?>
-<!DOCTYPE configuration SYSTEM "configuration.dtd">
-
-<configuration>
- <helm_dir>/home/pauillac/coq3/sacerdot/HELM/interface/examples</helm_dir>
-
- <dtd_dir><value-of var="helm_dir"/>/dtd</dtd_dir>
- <servers_file>/home/pauillac/coq3/sacerdot/HELM/interface/servers.txt</servers_file>
- <uris_dbm>/home/pauillac/coq3/sacerdot/HELM/interface/urls_of_uris</uris_dbm>
- <dest><value-of var="helm_dir"/></dest>
- <indexname>index.txt</indexname>
- <tmpdir>/tmp</tmpdir>
-
- <helm_url_path>/home/lpadovan/helm/PARSER/examples</helm_url_path>
- <getheader_url>http://localhost/really_very_local/helm/header/getheader.xml</getheader_url>
- <style_url>http://localhost/really_very_local/helm/style/</style_url>
- <webeq_url>http://localhost/cgi-bin/helm/webeq.pl</webeq_url>
- <webeqp_url>http://localhost/cgi-bin/helm/webeqp.pl</webeqp_url>
- <use_webeqp_url>http://localhost/cgi-bin/helm/use_webeqp.pl</use_webeqp_url>
- <html_link><value-of var="getheader_url"/>?baseurl=<value-of var="style_url"/>&amp;stylesheet1=rootcontent.xsl&amp;stylesheet2=content_to_html.xsl&amp;xmlfile=</html_link>
- <getter_url>http://localhost:8081/getwithtypes?url=</getter_url>
-</configuration>
diff --git a/helm/configuration/local/lib/helm/configuration.pl b/helm/configuration/local/lib/helm/configuration.pl
deleted file mode 100644
index deea890a8..000000000
--- a/helm/configuration/local/lib/helm/configuration.pl
+++ /dev/null
@@ -1,35 +0,0 @@
-use XML::Parser;
-
-# this should be the only fixed constant
-$configuration_file = "/home/cadet/sacerdot/local/etc/helm/configuration.xml";
-
-$parser = new XML::Parser(Handlers => {Start => \&handle_start,
-                                       End   => \&handle_end,
-                                       Char  => \&handle_char});
-
-
-$parser->parsefile($configuration_file, ErrorContext => 3);
-
-
-sub handle_start
-{
-   if ($_[1] eq "value-of") {
-      $$varname .= ${$_[3]};
-   } elsif ($_[1] ne "configuration") {
-      $varname = $_[1];
-   }
-}
-
-sub handle_end
-{
-   if ($_[1] ne "value-of" && $_[1] ne "configuration") {
-      # Next line for debugging only:
-      # print "OK: #$_[1]# := #$$varname#\n";
-      $varname = undef;
-   }
-}
-
-sub handle_char
-{
-   $$varname .= $_[1];
-}
diff --git a/helm/interface/.cvsignore b/helm/interface/.cvsignore
deleted file mode 100644
index 49c2d73aa..000000000
--- a/helm/interface/.cvsignore
+++ /dev/null
@@ -1,12 +0,0 @@
-*.cmo
-*.cmx
-*.cmi
-
-experiment
-experiment.opt
-fix_params
-fix_params.opt
-mmlinterface
-mmlinterface.opt
-reduction
-reduction.opt
diff --git a/helm/interface/.depend b/helm/interface/.depend
deleted file mode 100644
index 6402ae55b..000000000
--- a/helm/interface/.depend
+++ /dev/null
@@ -1,94 +0,0 @@
-experiment.cmo: cicCache.cmi cicPp.cmi configuration.cmo getter.cmi \
-    uriManager.cmi 
-experiment.cmx: cicCache.cmx cicPp.cmx configuration.cmx getter.cmx \
-    uriManager.cmx 
-cicCache.cmo: annotationParser.cmo cic.cmo cicParser.cmi cicSubstitution.cmi \
-    deannotate.cmo getter.cmi uriManager.cmi cicCache.cmi 
-cicCache.cmx: annotationParser.cmx cic.cmx cicParser.cmx cicSubstitution.cmx \
-    deannotate.cmx getter.cmx uriManager.cmx cicCache.cmi 
-cicCache.cmi: cic.cmo uriManager.cmi 
-cicPp.cmo: cic.cmo cicCache.cmi uriManager.cmi cicPp.cmi 
-cicPp.cmx: cic.cmx cicCache.cmx uriManager.cmx cicPp.cmi 
-cicPp.cmi: cic.cmo 
-cicParser.cmo: cicParser2.cmi cicParser3.cmi pxpUriResolver.cmo \
-    uriManager.cmi cicParser.cmi 
-cicParser.cmx: cicParser2.cmx cicParser3.cmx pxpUriResolver.cmx \
-    uriManager.cmx cicParser.cmi 
-cicParser.cmi: cic.cmo uriManager.cmi 
-cicParser2.cmo: cic.cmo cicParser3.cmi uriManager.cmi cicParser2.cmi 
-cicParser2.cmx: cic.cmx cicParser3.cmx uriManager.cmx cicParser2.cmi 
-cicParser2.cmi: cic.cmo cicParser3.cmi 
-cicParser3.cmo: cic.cmo uriManager.cmi cicParser3.cmi 
-cicParser3.cmx: cic.cmx uriManager.cmx cicParser3.cmi 
-cicParser3.cmi: cic.cmo uriManager.cmi 
-cic.cmo: uriManager.cmi 
-cic.cmx: uriManager.cmx 
-getter.cmo: configuration.cmo uriManager.cmi getter.cmi 
-getter.cmx: configuration.cmx uriManager.cmx getter.cmi 
-getter.cmi: uriManager.cmi 
-cicReduction.cmo: cic.cmo cicCache.cmi cicPp.cmi cicSubstitution.cmi \
-    uriManager.cmi cicReduction.cmi 
-cicReduction.cmx: cic.cmx cicCache.cmx cicPp.cmx cicSubstitution.cmx \
-    uriManager.cmx cicReduction.cmi 
-cicReduction.cmi: cic.cmo 
-cicTypeChecker.cmo: cic.cmo cicCache.cmi cicPp.cmi cicReduction.cmi \
-    cicSubstitution.cmi uriManager.cmi cicTypeChecker.cmi 
-cicTypeChecker.cmx: cic.cmx cicCache.cmx cicPp.cmx cicReduction.cmx \
-    cicSubstitution.cmx uriManager.cmx cicTypeChecker.cmi 
-cicTypeChecker.cmi: uriManager.cmi 
-reduction.cmo: cic.cmo cicCache.cmi cicPp.cmi cicReduction.cmi \
-    cicTypeChecker.cmi configuration.cmo getter.cmi uriManager.cmi 
-reduction.cmx: cic.cmx cicCache.cmx cicPp.cmx cicReduction.cmx \
-    cicTypeChecker.cmx configuration.cmx getter.cmx uriManager.cmx 
-theoryParser.cmo: pxpUriResolver.cmo theoryParser2.cmo 
-theoryParser.cmx: pxpUriResolver.cmx theoryParser2.cmx 
-theoryParser2.cmo: theory.cmo 
-theoryParser2.cmx: theory.cmx 
-theoryTypeChecker.cmo: cicCache.cmi cicTypeChecker.cmi theory.cmo \
-    theoryCache.cmo uriManager.cmi 
-theoryTypeChecker.cmx: cicCache.cmx cicTypeChecker.cmx theory.cmx \
-    theoryCache.cmx uriManager.cmx 
-cicCooking.cmo: cic.cmo cicCache.cmi uriManager.cmi cicCooking.cmi 
-cicCooking.cmx: cic.cmx cicCache.cmx uriManager.cmx cicCooking.cmi 
-cicCooking.cmi: cic.cmo uriManager.cmi 
-cicFindParameters.cmo: cic.cmo cic2Xml.cmo cicCache.cmi configuration.cmo \
-    uriManager.cmi xml.cmi 
-cicFindParameters.cmx: cic.cmx cic2Xml.cmx cicCache.cmx configuration.cmx \
-    uriManager.cmx xml.cmx 
-theoryCache.cmo: getter.cmi theoryParser.cmo 
-theoryCache.cmx: getter.cmx theoryParser.cmx 
-fix_params.cmo: cicFindParameters.cmo configuration.cmo deannotate.cmo \
-    getter.cmi uriManager.cmi 
-fix_params.cmx: cicFindParameters.cmx configuration.cmx deannotate.cmx \
-    getter.cmx uriManager.cmx 
-cic2Xml.cmo: cic.cmo uriManager.cmi xml.cmi 
-cic2Xml.cmx: cic.cmx uriManager.cmx xml.cmx 
-xml.cmo: xml.cmi 
-xml.cmx: xml.cmi 
-uriManager.cmo: uriManager.cmi 
-uriManager.cmx: uriManager.cmi 
-cicSubstitution.cmo: cic.cmo cicSubstitution.cmi 
-cicSubstitution.cmx: cic.cmx cicSubstitution.cmi 
-cicSubstitution.cmi: cic.cmo uriManager.cmi 
-mmlinterface.cmo: annotation2Xml.cmo cicAnnotationHinter.cmo cicCache.cmi \
-    cicTypeChecker.cmi cicXPath.cmo configuration.cmo getter.cmi \
-    theoryTypeChecker.cmo uriManager.cmi xml.cmi xsltProcessor.cmo 
-mmlinterface.cmx: annotation2Xml.cmx cicAnnotationHinter.cmx cicCache.cmx \
-    cicTypeChecker.cmx cicXPath.cmx configuration.cmx getter.cmx \
-    theoryTypeChecker.cmx uriManager.cmx xml.cmx xsltProcessor.cmx 
-xsltProcessor.cmo: configuration.cmo uriManager.cmi 
-xsltProcessor.cmx: configuration.cmx uriManager.cmx 
-deannotate.cmo: cic.cmo 
-deannotate.cmx: cic.cmx 
-cicXPath.cmo: cic.cmo 
-cicXPath.cmx: cic.cmx 
-pxpUriResolver.cmo: configuration.cmo 
-pxpUriResolver.cmx: configuration.cmx 
-annotationParser.cmo: annotationParser2.cmo pxpUriResolver.cmo 
-annotationParser.cmx: annotationParser2.cmx pxpUriResolver.cmx 
-annotationParser2.cmo: cic.cmo 
-annotationParser2.cmx: cic.cmx 
-annotation2Xml.cmo: cic.cmo uriManager.cmi xml.cmi 
-annotation2Xml.cmx: cic.cmx uriManager.cmx xml.cmx 
-cicAnnotationHinter.cmo: cic.cmo 
-cicAnnotationHinter.cmx: cic.cmx 
diff --git a/helm/interface/ISTRUZIONI b/helm/interface/ISTRUZIONI
deleted file mode 100644
index fe6c09efc..000000000
--- a/helm/interface/ISTRUZIONI
+++ /dev/null
@@ -1,22 +0,0 @@
-==============================
-ISTRUZIONI PER CHI USA LA TCSH
-==============================
-
-Lanciare:
-
- source PER_FARLO_ANDARE_TCSH
-
-Poi far partire altri due xterm.
-Nel primo lanciare:
-
- make start-xaland3
-
-Nel secondo lanciare:
-
- make start-http-getter
-
-Se non funziona significa che ce ne e' gia' uno attivo.
-
-Infini lanciare, dall'ultima shell,
-
- ./mmlinterface.opt.saved
diff --git a/helm/interface/Makefile b/helm/interface/Makefile
deleted file mode 100644
index 981454830..000000000
--- a/helm/interface/Makefile
+++ /dev/null
@@ -1,187 +0,0 @@
-LABLGTK_DIR = /usr/lib/ocaml/lablgtk
-LABLGTK_MATHVIEW_DIR = /usr/lib/ocaml/lablgtk/mathview
-PXP_DIR = /usr/lib/ocaml/site-lib/pxp
-NETSTRING_DIR = /usr/lib/ocaml/site-lib/netstring
-OCAMLC = ocamlc -I $(LABLGTK_DIR) -I $(LABLGTK_MATHVIEW_DIR) -I $(PXP_DIR) -I $(NETSTRING_DIR) -I mlmathview
-OCAMLOPT = ocamlopt -I $(LABLGTK_DIR) -I $(LABLGTK_MATHVIEW_DIR) -I mlgtk_devel -I $(PXP_DIR) -I $(NETSTRING_DIR) -I mlmathview
-OCAMLDEP = ocamldep
-
-all: experiment reduction fix_params mmlinterface
-opt: experiment.opt reduction.opt fix_params.opt mmlinterface.opt
-
-PXPLIBS = netstring.cma netmappings_iso.cmo netmappings_other.cmo \
-          pxp_types.cma \
-          pxp_lex_iso88591.cma pxp_lex_utf8.cma pxp_engine.cma \
-          pxp_utf8.cmo
-
-PXPLIBSOPT = netstring.cmxa netmappings_iso.cmx netmappings_other.cmx \
-             pxp_types.cmxa \
-             pxp_lex_iso88591.cmxa pxp_lex_utf8.cmxa pxp_engine.cmxa \
-             pxp_utf8.cmx
-
-
-DEPOBJS = experiment.ml cicCache.ml cicCache.mli cicPp.ml cicPp.mli \
-          cicParser.ml cicParser.mli cicParser2.ml cicParser2.mli \
-          cicParser3.ml cicParser3.mli cic.ml getter.ml getter.mli \
-          gtkInterface.ml cicReduction.ml cicReduction.mli cicTypeChecker.ml \
-          cicTypeChecker.mli reduction.ml tgtkInterface.ml theory.ml \
-          theoryParser.ml theoryParser2.ml theoryPp.ml theoryTypeChecker.ml \
-          cicCooking.ml cicCooking.mli cicFindParameters.ml theoryCache.ml \
-          fix_params.ml cic2Xml.ml xml.ml uriManager.ml uriManager.mli \
-          cicSubstitution.ml cicSubstitution.mli mml.ml \
-          mmlinterface.ml configuration.ml \
-          xsltProcessor.ml deannotate.ml cicXPath.ml pxpUriResolver.ml \
-          annotationParser.ml annotationParser2.ml annotation2Xml.ml \
-          cicAnnotationHinter.ml
-
-MMLINTERFACEOBJS = configuration.cmo uriManager.cmo getter.cmo cic.cmo \
-                   pxpUriResolver.cmo \
-                   cicParser3.cmo cicParser2.cmo cicParser.cmo deannotate.cmo \
-                   cicSubstitution.cmo annotationParser2.cmo \
-                   annotationParser.cmo cicCache.cmo cicCooking.cmo cicPp.cmo \
-                   cicReduction.cmo cicTypeChecker.cmo mml.cmo \
-                   xml.cmo \
-                   xsltProcessor.cmo cic2Xml.cmo annotation2Xml.cmo \
-                   cicXPath.cmo theory.cmo theoryParser2.cmo theoryParser.cmo \
-                   theoryCache.cmo theoryTypeChecker.cmo \
-                   cicAnnotationHinter.cmo mmlinterface.cmo
-
-MMLINTERFACEOPTOBJS = configuration.cmx uriManager.cmx getter.cmx cic.cmx \
-                      pxpUriResolver.cmx \
-                      cicParser3.cmx cicParser2.cmx cicParser.cmx \
-                      deannotate.cmx cicSubstitution.cmx annotationParser2.cmx \
-                      annotationParser.cmx cicCache.cmx \
-                      cicCooking.cmx cicPp.cmx cicReduction.cmx \
-                      cicTypeChecker.cmx mml.cmx \
-                      xml.cmx xsltProcessor.cmx \
-                      cic2Xml.cmx annotation2Xml.cmx cicXPath.cmx \
-                      theory.cmx theoryParser2.cmx theoryParser.cmx \
-                      theoryCache.cmx theoryTypeChecker.cmx \
-                      cicAnnotationHinter.cmx mmlinterface.cmx
-
-FIX_PARAMSOBJS = configuration.cmo uriManager.cmo getter.cmo cic.cmo \
-                 pxpUriResolver.cmo \
-                 cicParser3.cmo cicParser2.cmo cicParser.cmo deannotate.cmo \
-                 cicSubstitution.cmo annotationParser2.cmo \
-                 annotationParser.cmo  cicCache.cmo cicPp.cmo xml.cmo \
-                 cic2Xml.cmo cicFindParameters.cmo fix_params.cmo
-
-FIX_PARAMSOPTOBJS = configuration.cmx uriManager.cmx getter.cmx cic.cmx \
-                    pxpUriResolver.cmx \
-                    cicParser3.cmx cicParser2.cmx cicParser.cmx deannotate.cmx \
-                    cicSubstitution.cmx annotationParser2.cmx \
-                    annotationParser.cmx cicCache.cmx cicPp.cmx xml.cmx \
-                    cic2Xml.cmx cicFindParameters.cmx fix_params.cmx
-
-REDUCTIONOBJS = configuration.cmo uriManager.cmo getter.cmo cic.cmo \
-                pxpUriResolver.cmo \
-                cicParser3.cmo cicParser2.cmo cicParser.cmo deannotate.cmo \
-                cicSubstitution.cmo annotationParser2.cmo annotationParser.cmo \
-                cicCache.cmo cicPp.cmo cicCooking.cmo \
-                cicReduction.cmo cicTypeChecker.cmo reduction.cmo
-
-REDUCTIONOPTOBJS = configuration.cmx uriManager.cmx getter.cmx cic.cmx \
-                   pxpUriResolver.cmx \
-                   cicParser3.cmx cicParser2.cmx cicParser.cmx deannotate.cmx \
-                   cicSubstitution.cmx annotationParser2.cmx \
-                   annotationParser.cmx cicCache.cmx cicPp.cmx cicCooking.cmx \
-                   cicReduction.cmx cicTypeChecker.cmx reduction.cmx
-
-EXPERIMENTOBJS = configuration.cmo uriManager.cmo getter.cmo cic.cmo \
-                 pxpUriResolver.cmo \
-                 cicParser3.cmo cicParser2.cmo cicParser.cmo deannotate.cmo \
-                 cicSubstitution.cmo annotationParser2.cmo \
-                 annotationParser.cmo cicCache.cmo cicPp.cmo experiment.cmo
-
-EXPERIMENTOPTOBJS = configuration.cmx uriManager.cmx getter.cmx cic.cmx \
-                    pxpUriResolver.cmx \
-                    cicParser3.cmx cicParser2.cmx cicParser.cmx deannotate.cmx \
-                    cicSubstitution.cmx annotationParser2.cmx \
-                    annotationParser.cmx cicCache.cmx cicPp.cmx experiment.cmx
-
-depend:
-	$(OCAMLDEP) $(DEPOBJS) > .depend
-
-mmlinterface: $(MMLINTERFACEOBJS)
-	$(OCAMLC) -custom -o mmlinterface str.cma unix.cma $(PXPLIBS) dbm.cma \
-                  lablgtk.cma gtkInit.cmo \
-                  $(LABLGTK_MATHVIEW_DIR)/lablgtkmathview.cma \
-                  $(MMLINTERFACEOBJS) \
-                  -cclib "-lstr -L/usr/lib -L/usr/X11R6/lib -lgtk -lgdk \
-                  -rdynamic -lgmodule -lglib -ldl -lXi -lXext -lX11 -lm \
-                  -lunix -L/usr/local/lib/gtkmathview -lgtkmathview \
-                  $(LABLGTK_MATHVIEW_DIR)/ml_gtk_mathview.o" \
-                  -cclib -lmldbm -cclib -lndbm
-
-mmlinterface.opt: $(MMLINTERFACEOPTOBJS)
-	$(OCAMLOPT) -o mmlinterface.opt str.cmxa $(PXPLIBSOPT) unix.cmxa \
-                    dbm.cmxa lablgtk.cmxa gtkInit.cmx \
-                    $(LABLGTK_MATHVIEW_DIR)/lablgtkmathview.cmxa \
-                    $(MMLINTERFACEOPTOBJS) \
-                    -cclib "-lstr -L/usr/lib -L/usr/X11R6/lib -lgtk -lgdk \
-                    -rdynamic -lgmodule -lglib -ldl -lXi -lXext -lX11 -lm \
-                    -lunix -L/usr/local/lib/gtkmathview -lgtkmathview \
-                    $(LABLGTK_MATHVIEW_DIR)/ml_gtk_mathview.o" \
-                    -cclib -lmldbm -cclib -lndbm
-
-fix_params: $(FIX_PARAMSOBJS)
-	$(OCAMLC) -custom -o fix_params str.cma $(PXPLIBS) dbm.cma \
-                  $(FIX_PARAMSOBJS) -cclib -lstr -cclib -lmldbm -cclib -lndbm
-
-fix_params.opt: $(FIX_PARAMSOPTOBJS)
-	$(OCAMLOPT) -o fix_params.opt str.cmxa $(PXPLIBSOPT) dbm.cmxa \
-                    $(FIX_PARAMSOPTOBJS) -cclib -lstr -cclib -lmldbm \
-                    -cclib -lndbm
-
-reduction: $(REDUCTIONOBJS)
-	$(OCAMLC) -custom -o reduction str.cma $(PXPLIBS) dbm.cma \
-                  $(REDUCTIONOBJS) -cclib -lstr -cclib -lmldbm -cclib -lndbm
-
-reduction.opt: $(REDUCTIONOPTOBJS)
-	$(OCAMLOPT) -o reduction.opt str.cmxa $(PXPLIBSOPT) dbm.cmxa \
-                    $(REDUCTIONOPTOBJS) -cclib -lstr -cclib -lmldbm \
-                    -cclib -lndbm
-
-experiment: $(EXPERIMENTOBJS)
-	$(OCAMLC) -custom -o experiment str.cma $(PXPLIBS) dbm.cma \
-                  $(EXPERIMENTOBJS) -cclib -lstr -cclib -lmldbm -cclib -lndbm
-
-experiment.opt: $(EXPERIMENTOPTOBJS)
-	$(OCAMLOPT) -o experiment.opt str.cmxa $(PXPLIBSOPT) dbm.cmxa \
-                    $(EXPERIMENTOPTOBJS) -cclib -lstr -cclib -lmldbm \
-                    -cclib -lndbm
-
-.SUFFIXES: .ml .mli .cmo .cmi .cmx
-.ml.cmo:
-	$(OCAMLC) -c $<
-.mli.cmi:
-	$(OCAMLC) -c $<
-.ml.cmx:
-	$(OCAMLOPT) -c $<
-
-clean:
-	rm -f *.cm[iox] *.o experiment experiment.opt reduction \
-           reduction.opt fix_params fix_params.opt mmlinterface \
-           mmlinterface.opt mmlinterface2 mmlinterface2.opt
-
-start-xaland:
-	java xaland 12345 12346 examples/style/rootcontent.xsl \
-           examples/style/annotatedpres.xsl examples/style/theory_content.xsl \
-           examples/style/theory_pres.xsl
-
-start-xaland-old:
-	java xaland 12345 12346 \
-         examples/style/style_prima_del_linguaggio_naturale/rootcontent.xsl \
-         examples/style/style_prima_del_linguaggio_naturale/annotatedpres.xsl \
-         examples/style/style_prima_del_linguaggio_naturale/theory_content.xsl \
-         examples/style/style_prima_del_linguaggio_naturale/theory_pres.xsl
-
-start-xaland3:
-	java xaland 12347 12348 examples/style/rootcontent.xsl \
-           examples/style/annotatedpres.xsl examples/style/theory_content.xsl \
-           examples/style/theory_pres.xsl
-
-start-http-getter:
-	http_getter/http_getter.pl
-
-include .depend
diff --git a/helm/interface/NON_VA b/helm/interface/NON_VA
deleted file mode 100644
index 375447103..000000000
--- a/helm/interface/NON_VA
+++ /dev/null
@@ -1,29 +0,0 @@
-
- ***********************************************************************
-
-                         A T T E N Z I O N E ! ! !
-
- Quando si usa fix_params.opt, scrivere
-
-       find /really_very_local/helm/PARSER/examples
-
- invece di examples
-
- ***********************************************************************
-
- PROBLEMA NON FIXATO CON fix_params
-
- LA SOLUZIONE E'
-
-
-
-Correggere:
-
- examples/coq/SETS/Powerset_facts/Sets_as_an_algebra/setcover_intro.con.xml
-
-aggiungendo paramMode="POSSIBLE"
-
-Un esempio che altrimenti non funziona e':
-
-examples/coq/SETS/Powerset_Classical_facts/Sets_as_an_algebra/Add_covers.con.xml
-
diff --git a/helm/interface/PER_FARLO_ANDARE b/helm/interface/PER_FARLO_ANDARE
deleted file mode 100644
index 20fb52a86..000000000
--- a/helm/interface/PER_FARLO_ANDARE
+++ /dev/null
@@ -1,2 +0,0 @@
-export LD_LIBRARY_PATH=.:/really_very_local/helm/proveluca/mml-browser/
-export no_proxy=cs.unibo.it
diff --git a/helm/interface/PER_FARLO_ANDARE_TCSH b/helm/interface/PER_FARLO_ANDARE_TCSH
deleted file mode 100644
index b527fabea..000000000
--- a/helm/interface/PER_FARLO_ANDARE_TCSH
+++ /dev/null
@@ -1,4 +0,0 @@
-setenv PATH "/home/projects/java/jdk1.2.2/bin:$PATH"
-setenv CLASSPATH "/really_very_local/helm/java/xalan_1_1/xalan.jar:/really_very_local/helm/java/xalan_1_1/xerces.jar:."
-setenv CLASSPATH "/really_very_local/helm/java/saxon-5.3.2/saxon.jar:$CLASSPATH"
-setenv LD_LIBRARY_PATH ".:/really_very_local/helm/proveluca/mml-browser/"
diff --git a/helm/interface/PER_FARLO_ANDARE_TCSH_D01 b/helm/interface/PER_FARLO_ANDARE_TCSH_D01
deleted file mode 100644
index 208f00a0e..000000000
--- a/helm/interface/PER_FARLO_ANDARE_TCSH_D01
+++ /dev/null
@@ -1,4 +0,0 @@
-setenv PATH "/home/projects/java/jdk1.2.2/bin:$PATH"
-setenv CLASSPATH "/really_very_local/helm/java/xalan_1_2_D01/xalan.jar:/really_very_local/helm/java/xalan_1_2_D01/xerces.jar:."
-setenv CLASSPATH "/really_very_local/helm/java/saxon-5.3.2/saxon.jar:$CLASSPATH"
-setenv LD_LIBRARY_PATH ".:/really_very_local/helm/proveluca/mml-browser/"
diff --git a/helm/interface/README b/helm/interface/README
deleted file mode 100644
index 89265ca8a..000000000
--- a/helm/interface/README
+++ /dev/null
@@ -1,44 +0,0 @@
-(******************************************************************************)
-(*                                                                            *)
-(*                               PROJECT HELM                                 *)
-(*                                                                            *)
-(*                     A tactic to print Coq objects in XML                   *)
-(*                                                                            *)
-(*                Claudio Sacerdoti Coen <sacerdot@cs.unibo.it>               *)
-(*                                 22/11/1999                                 *)
-(******************************************************************************)
-
-This is the main directory of the coq-like pretty printer for cic terms exported
-in xml from Coq. Once compiled four different executables are made:
-
- experiment            a command-line pretty-printer (interpreted)
- experiment.opt        same as experiment (compiled)
- gtkInterface          a gtk-based pretty-printer (interpreted)
- gtkInterface.opt      a gtk-based pretty-printer (compiled)
-
-To use one of the previous pretty-printer the syntax is 
-
-        pretty_printer_name file1 ... filen
-
-where filei is an xml cic object
-
-Code files:
-
- cic.ml            the internal definition of cic objects and terms
- getter.ml         converts uris to filenames retrieving the correspondent file
- cache.ml          a cache for cic objects (actually a simple hash-table)
- cicParser.ml      a parser from xml to internal definition: top level
- cicParser2.ml     a parser from xml to internal definition: objects level
- cicParser3.ml     a parser from xml to internal definition: terms level
- cicPp.ml          a pretty-printer for the internal definition of cic objects
- experiment.ml     a textual interface to cicPp
- gtkInterface.ml   a gtk interface to cicPp
-
-Interface files:
- cache.mli getter.mli cicPp.mli cicParser.mli cicParser2.mli cicParser3.mli
-
-Other files:
-
- Makefile     the targets are "all" "opt" "depend" "clean"
- .depend      dependencies file used by make
- examples     symbolic link to the root of the exported library
diff --git a/helm/interface/TEMPI b/helm/interface/TEMPI
deleted file mode 100644
index dc2bc8522..000000000
--- a/helm/interface/TEMPI
+++ /dev/null
@@ -1,214 +0,0 @@
-prima di UriManager.ml:
-
- [ABCI]* (terza passata, uguale alla seconda):
-
-   real	0m50.266s
-   user	0m44.160s
-   sys	0m0.700s
-
-dopo UriManager.ml, ma prima di passare da = a ==:
-
- [ABCI]* (terza passata, uguale alla seconda):
-
-   real	0m51.388s
-   user	0m45.430s
-   sys	0m0.530s
-
-dopo UriManager.ml e popo il passaggio (parziale?) da = a ==:
-
- [ABCI]* (terza passata, uguale alla seconda):
-
-   real	0m50.767s
-   user	0m44.750s
-   sys	0m0.510s
-
-dopo il passaggio alla cache che usa ancora =:
-
- [ABCI]* (terza passata, uguale alla seconda):
-
-   real	0m50.646s
-   user	0m44.680s
-   sys	0m0.530s
-
-dopo il passaggio alla cache con utilizzo di ==:
-
- [ABCI]* (terza passata, uguale alla seconda):
-
-   real	0m50.861s
-   user	0m45.030s
-   sys	0m0.500s
-
-con funzione di hashing costante ;-(
-
- [ABCI]* (terza passata, uguale alla seconda):
-
-   real	0m51.442s
-   user	0m45.440s
-   sys	0m0.530s
-
-con implementazione isomorfa all'albero delle uri:
-
- [ABCI]* (terza passata, uguale alla seconda):
-
-   real	0m54.081s
-   user	0m47.590s
-   sys	0m0.780s
-
-con implementazione con doppio RB-albero:
-
- [ABCI]* (terza passata, uguale alla seconda):
-
-   real	0m52.504s
-   user	0m46.120s
-   sys	0m0.720s
-
-con implementazione semplice, gestite anche le uri delle var:
-
- [ABCI]* (terza passata, uguale alla seconda):
-
-   real	0m51.850s
-   user	0m46.060s
-   sys	0m0.530s
-
-con implementazione con doppio RB-albero, gestite anche le uri delle var:
-
- [ABCI]* (terza passata, uguale alla seconda):
-
-   real	0m51.495s
-   user	0m45.660s
-   sys	0m0.540s
-
-=========================================================
-
-con implementazione con doppio RB-albero, gestite anche le uri delle var
-e spostata nell'uri-manager is_prefix:
-
- [ABCI]* (terza passata, uguale alla seconda):
-
-   real	0m50.465s
-   user	0m45.710s
-   sys	0m0.590s
-
-con implementazione semplice (e tutto il resto):
-
- [ABCI]* (terza passata, uguale alla seconda):
-
-   real	0m49.710s
-   user	0m43.850s
-   sys	0m0.500s
-
-con implementazione banale (e tutto il resto):
-
- [ABCI]* (terza passata, uguale alla seconda):
-
-   real	0m49.289s
-   user	0m44.840s
-   sys	0m0.570s
-
-con implementazione banale SOLO PARSING ;-)
-
- [ABCI]* (terza passata, uguale alla seconda):
-
-   real	0m48.395s
-   user	0m42.830s
-   sys	0m0.850s
-
-=========================================================
-
-con implementazione con doppio RB-albero, gestite anche le uri delle var
-e spostata nell'uri-manager is_prefix:
-
- REAL (prima passata, dopo un sync):
-
-   real	10m58.033s
-   user	10m37.690s
-   sys	0m2.570s
-
-con implementazione semplice (e tutto il resto):
-
- REAL (prima passata, dopo un sync):
-
-   real	10m31.035s
-   user	10m9.350s
-   sys	0m3.230s
-
-con implementazione banale (e tutto il resto):
-
- REAL (prima passata, dopo un sync):
-
-   real	11m4.026s
-   user	10m43.930s
-   sys	0m3.070s
-
-=================================================
-
-con implementazione banale, SOLO PARSING di tutto:
-
-   real	6m54.336s
-   user	6m13.850s
-   sys	0m6.580s
-
-con implementazione banale, anche typechecking di tutto:
-
-   real	20m17.739s
-   user	19m14.740s
-   sys	0m8.550s
-
-con implementazione semplice, anche typechecking di tutto:
-
-   real	19m36.079s
-   user	18m36.480s
-   sys	0m7.760s
-
-con implementazione con doppio RB-albero, anche typechecking di tutto:
-
-   real	17m30.423s
-   user	16m30.840s
-   sys	0m6.170s
-
-***************************************************************************
-                         APPLICATA EURISTICA
-***************************************************************************
-
-con implementazione con doppio RB-albero, anche typechecking di tutto
-(universita') ????????:
-
-real    5m37.805s
-user    5m1.640s
-sys     0m5.010s
-
-tutto (ma a casa):
-
-real	7m36.663s
-user	6m52.220s
-sys	0m5.860s
-
-
-solo REAL:
-
-real	2m52.860s
-user	2m41.050s
-sys	0m2.820s
-
-==========================================================================
-
-tutto (ma a casa) dopo eliminazione buri:
-
-real	7m52.773s
-user	6m52.110s
-sys	0m7.130s
-
-"solo parsing" di tutto dopo eliminazione buri:
-
-real	7m8.379s
-user	6m15.250s
-sys	0m6.700s
-
-===========================================================================
-
-TUTTO ALL'UNIVERSITA' CON EURISTICA MA SENZA UNIVERSI:
-
-real    5m47.920s
-user    5m14.600s
-sys     0m5.010s
-
diff --git a/helm/interface/WGET b/helm/interface/WGET
deleted file mode 100644
index f1cca6c37..000000000
--- a/helm/interface/WGET
+++ /dev/null
@@ -1,3 +0,0 @@
--P directory di destinazione
--q no output (quiet mode)
--c continue retrieving (no uri.1, uri.2, ...)
diff --git a/helm/interface/annotation2Xml.ml b/helm/interface/annotation2Xml.ml
deleted file mode 100644
index a9fca071a..000000000
--- a/helm/interface/annotation2Xml.ml
+++ /dev/null
@@ -1,190 +0,0 @@
-(*CSC codice cut & paste da cicPp e xmlcommand *)
-
-exception ImpossiblePossible;;
-exception NotImplemented;;
-exception BinderNotSpecified;;
-
-let dtdname = "http://localhost:8081/getdtd?url=annotations.dtd";;
-
-(*CSC ottimizzazione: al posto di curi cdepth (vedi codice) *)
-let print_term =
- let rec aux =
-  let module C = Cic in
-  let module X = Xml in
-  let module U = UriManager in
-    function
-       C.ARel (id,ann,_,_) ->
-        (match !ann with
-            None -> [<>]
-          | Some ann -> (X.xml_nempty "Annotation" ["of", id] (X.xml_cdata ann))
-        )
-     | C.AVar (id,ann,_) ->
-        (match !ann with
-            None -> [<>]
-          | Some ann -> (X.xml_nempty "Annotation" ["of", id] (X.xml_cdata ann))
-        )
-     | C.AMeta (id,ann,_) ->
-        (match !ann with
-            None -> [<>]
-          | Some ann -> (X.xml_nempty "Annotation" ["of", id] (X.xml_cdata ann))
-        )
-     | C.ASort (id,ann,_) ->
-        (match !ann with
-            None -> [<>]
-          | Some ann -> (X.xml_nempty "Annotation" ["of", id] (X.xml_cdata ann))
-        )
-     | C.AImplicit _ -> raise NotImplemented
-     | C.AProd (id,ann,_,s,t) ->
-        [< (match !ann with
-               None -> [<>]
-             | Some ann ->
-                (X.xml_nempty "Annotation" ["of", id] (X.xml_cdata ann))
-           ) ;
-           aux s ;
-           aux t
-        >]
-     | C.ACast (id,ann,v,t) ->
-        [< (match !ann with
-               None -> [<>]
-             | Some ann ->
-                (X.xml_nempty "Annotation" ["of", id] (X.xml_cdata ann))
-           ) ;
-           aux v ;
-           aux t
-        >]
-     | C.ALambda (id,ann,_,s,t) ->
-        [< (match !ann with
-               None -> [<>]
-             | Some ann ->
-                (X.xml_nempty "Annotation" ["of", id] (X.xml_cdata ann))
-           ) ;
-           aux s ;
-           aux t
-        >]
-     | C.AAppl (id,ann,li) ->
-        [< (match !ann with
-               None -> [<>]
-             | Some ann ->
-                (X.xml_nempty "Annotation" ["of", id] (X.xml_cdata ann))
-           ) ;
-           List.fold_right (fun x i -> [< (aux x) ; i >]) li [<>]
-        >]
-     | C.AConst (id,ann,_,_) ->
-        (match !ann with
-            None -> [<>]
-          | Some ann -> (X.xml_nempty "Annotation" ["of", id] (X.xml_cdata ann))
-        )
-     | C.AAbst (id,ann,_) -> raise NotImplemented
-     | C.AMutInd (id,ann,_,_,_) ->
-        (match !ann with
-            None -> [<>]
-          | Some ann -> (X.xml_nempty "Annotation" ["of", id] (X.xml_cdata ann))
-        )
-     | C.AMutConstruct (id,ann,_,_,_,_) ->
-        (match !ann with
-            None -> [<>]
-          | Some ann -> (X.xml_nempty "Annotation" ["of", id] (X.xml_cdata ann))
-        )
-     | C.AMutCase (id,ann,_,_,_,ty,te,patterns) ->
-        [< (match !ann with
-               None -> [<>]
-             | Some ann ->
-                (X.xml_nempty "Annotation" ["of", id] (X.xml_cdata ann))
-           ) ;
-           aux ty ;
-           aux te ;
-           List.fold_right
-            (fun x i -> [< aux x ; i>])
-            patterns [<>]
-        >]
-     | C.AFix (id, ann, _, funs) ->
-        [< (match !ann with
-               None -> [<>]
-             | Some ann ->
-                (X.xml_nempty "Annotation" ["of", id] (X.xml_cdata ann))
-           ) ;
-           List.fold_right
-            (fun (_,_,ti,bi) i -> [< aux ti ; aux bi ; i >]) funs [<>]
-        >]
-     | C.ACoFix (id, ann,no,funs) ->
-        [< (match !ann with
-               None -> [<>]
-             | Some ann ->
-                (X.xml_nempty "Annotation" ["of", id] (X.xml_cdata ann))
-           ) ;
-           List.fold_right
-            (fun (_,ti,bi) i -> [< aux ti ; aux bi ; i >]) funs [<>]
-        >]
- in
-  aux
-;;
-
-let print_mutual_inductive_type (_,_,arity,constructors) =
- [< print_term arity ;
-    List.fold_right
-     (fun (name,ty,_) i -> [< print_term ty ; i >]) constructors [<>]
- >]
-;;
-
-let target_uri_of_annotation_uri uri =
- Str.replace_first (Str.regexp "\.ann$") "" (UriManager.string_of_uri uri)
-;;
-
-let pp_annotation obj curi =
- let module C = Cic in
- let module X = Xml in
-  [< X.xml_cdata "<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>\n" ;
-     X.xml_cdata ("<!DOCTYPE Annotations SYSTEM \"" ^ dtdname ^ "\">\n\n") ;
-     X.xml_nempty "Annotations" ["of", target_uri_of_annotation_uri curi]
-      begin
-       match obj with
-         C.ADefinition (xid, ann, _, te, ty, _) ->
-          [< (match !ann with
-                 None -> [<>]
-               | Some ann ->
-                  X.xml_nempty "Annotation" ["of", xid] (X.xml_cdata ann)
-             ) ;
-             print_term te ;
-             print_term ty
-          >]
-       | C.AAxiom (xid, ann, _, ty, _) ->
-          [< (match !ann with
-                 None -> [<>]
-               | Some ann ->
-                  X.xml_nempty "Annotation" ["of", xid] (X.xml_cdata ann)
-             ) ;
-             print_term ty
-          >]
-       | C.AVariable (xid, ann, _, ty) ->
-          [< (match !ann with
-                 None -> [<>]
-               | Some ann ->
-                  X.xml_nempty "Annotation" ["of", xid] (X.xml_cdata ann)
-             ) ;
-             print_term ty
-          >]
-       | C.ACurrentProof (xid, ann, _, conjs, bo, ty) ->
-          [< (match !ann with
-                 None -> [<>]
-               | Some ann ->
-                  X.xml_nempty "Annotation" ["of", xid] (X.xml_cdata ann)
-             ) ;
-             List.fold_right
-              (fun (_,t) i -> [< print_term t ; i >])
-              conjs [<>] ;
-             print_term bo ;
-             print_term ty
-          >]
-       | C.AInductiveDefinition (xid, ann, tys, params, paramsno) ->
-          [< (match !ann with
-                 None -> [<>]
-               | Some ann ->
-                  X.xml_nempty "Annotation" ["of", xid] (X.xml_cdata ann)
-             ) ;
-             List.fold_right
-              (fun x i -> [< print_mutual_inductive_type x ; i >])
-              tys [< >]
-          >]
-      end
-  >]
-;;
diff --git a/helm/interface/annotationParser.ml b/helm/interface/annotationParser.ml
deleted file mode 100644
index 3c645fe5d..000000000
--- a/helm/interface/annotationParser.ml
+++ /dev/null
@@ -1,30 +0,0 @@
-exception Warnings;;
-
-class warner =
-  object 
-    method warn w =
-      print_endline ("WARNING: " ^ w) ;
-      (raise Warnings : unit)
-  end
-;;
-
-exception EmptyUri;;
-
-let annotate filename ids_to_targets =
- let module Y = Pxp_yacc in
-  try 
-    let d =
-     let config = {Y.default_config with Y.warner = new warner} in
-      Y.parse_document_entity config
-(*PXP       (Y.ExtID (Pxp_types.System filename,
-         new Pxp_reader.resolve_as_file ~url_of_id ()))
-*)     (PxpUriResolver.from_file filename)
-       Y.default_spec
-
-    in
-     AnnotationParser2.annotate ids_to_targets d#root
-  with
-   e ->
-     print_endline (Pxp_types.string_of_exn e) ;
-     raise e
-;;
diff --git a/helm/interface/annotationParser2.ml b/helm/interface/annotationParser2.ml
deleted file mode 100644
index 5e5042efa..000000000
--- a/helm/interface/annotationParser2.ml
+++ /dev/null
@@ -1,103 +0,0 @@
-exception IllFormedXml of int;;
-
-(* Utility functions that transform a Pxp attribute into something useful *)
-
-let string_of_attr a =
- let module T = Pxp_types in
-  match a with
-     T.Value s -> s
-   | _ -> raise (IllFormedXml 0)
-;;
-
-exception DontKnowWhatToDo;;
-
-let rec string_of_annotations n =
- let module D = Pxp_document in
- let module T = Pxp_types in
-  match n#node_type with
-     D.T_element s ->
-      "<" ^ s ^
-      List.fold_right
-       (fun att i ->
-         match n#attribute att with
-            T.Value s -> " " ^ att ^ "=\"" ^ s ^ "\"" ^ i
-          | T.Implied_value -> i
-          | T.Valuelist l -> " " ^ att ^ "=\"" ^ String.concat " " l ^ "\"" ^ i
-       ) (n#attribute_names) "" ^
-      (match n#sub_nodes with
-          [] -> "/>"
-        | l ->
-           ">" ^
-           String.concat "" (List.map string_of_annotations l) ^
-           "</" ^ s ^ ">"
-      )
-   | D.T_data -> n#data
-   | _ -> raise DontKnowWhatToDo
-;;
-
-let get_annotation n =
- String.concat "" (List.map string_of_annotations (n#sub_nodes))
-;;
-
-let annotate_object ann obj =
- let module C = Cic in
-  let rann =
-   match obj with
-      C.ADefinition (_, rann, _, _, _, _) -> rann
-    | C.AAxiom (_, rann, _, _, _) -> rann
-    | C.AVariable (_, rann, _, _) -> rann
-    | C.ACurrentProof (_, rann, _, _, _, _) -> rann
-    | C.AInductiveDefinition (_, rann, _, _, _) -> rann
-  in
-   rann := Some ann
-;;
-
-let annotate_term ann term =
- let module C = Cic in
-  let rann =
-   match term with
-      C.ARel (_, rann, _, _) -> rann
-    | C.AVar (_, rann, _) -> rann
-    | C.AMeta (_, rann, _) -> rann
-    | C.ASort (_, rann, _) -> rann
-    | C.AImplicit (_, rann) -> rann
-    | C.ACast (_, rann, _, _) -> rann
-    | C.AProd (_, rann, _, _, _) -> rann
-    | C.ALambda (_, rann, _, _, _) -> rann
-    | C.AAppl (_, rann, _) -> rann
-    | C.AConst (_, rann, _, _) -> rann
-    | C.AAbst (_, rann, _) -> rann
-    | C.AMutInd (_, rann, _, _, _) -> rann
-    | C.AMutConstruct (_, rann, _, _, _, _) -> rann
-    | C.AMutCase (_, rann, _, _, _, _, _, _) -> rann
-    | C.AFix (_, rann, _, _) -> rann
-    | C.ACoFix (_, rann, _, _) -> rann
-  in
-   rann := Some ann
-;;
-
-let annotate ids_to_targets n =
- let module D = Pxp_document in
- let module C = Cic in
-  let annotate_elem n =
-   let ntype = n # node_type in
-   match ntype with
-     D.T_element "Annotation" ->
-       let of_uri = string_of_attr (n # attribute "of") in
-        begin
-         try
-          match Hashtbl.find ids_to_targets of_uri with
-             C.Object o -> annotate_object (get_annotation n) o
-           | C.Term t -> annotate_term (get_annotation n) t
-         with
-          Not_found -> assert false
-        end
-   | D.T_element _ | D.T_data ->
-      raise (IllFormedXml 1)
-   | _ -> raise DontKnowWhatToDo
-  in
-   match n # node_type with
-      D.T_element "Annotations" ->
-       List.iter annotate_elem (n # sub_nodes)
-    | _ -> raise (IllFormedXml 2)
-;;
diff --git a/helm/interface/cadet b/helm/interface/cadet
deleted file mode 100755
index 5a63f2d01..000000000
--- a/helm/interface/cadet
+++ /dev/null
@@ -1,15 +0,0 @@
-#! /bin/sh
-
-export PATH=/home/cadet/sacerdot/jdk118/bin:$PATH
-
-export CLASSPATH=/home/cadet/sacerdot/xalan-j_1_2/xalan.jar:/home/cadet/sacerdot/xalan-j_1_2/xerces.jar:.
-
-#export CLASSPATH=$CLASSPATH:/home/lpadovan/helm/java/xalan_1_1/xalan.jar
-#export CLASSPATH=$CLASSPATH:/home/lpadovan/helm/java/xalan_1_1/xerces.jar
-#export CLASSPATH=$CLASSPATH:/home/lpadovan/helm/java/saxon-5.3.2/saxon.jar
-
-# Per (my)Coq 6.3.0
-#export LD_LIBRARY_PATH=/home/lpadovan/helm/usr/lib/:$LD_LIBRARY_PATH
-export LD_LIBRARY_PATH=/usr/local/lib/gtkmathview:$LD_LIBRARY_PATH
-
-export HELM_CONFIGURATION_PREFIX=/home/cadet/sacerdot
diff --git a/helm/interface/cic.ml b/helm/interface/cic.ml
deleted file mode 100644
index dd9192531..000000000
--- a/helm/interface/cic.ml
+++ /dev/null
@@ -1,134 +0,0 @@
-(******************************************************************************)
-(*                                                                            *)
-(*                               PROJECT HELM                                 *)
-(*                                                                            *)
-(*                Claudio Sacerdoti Coen <sacerdot@cs.unibo.it>               *)
-(*                                 14/06/2000                                 *)
-(*                                                                            *)
-(* This module defines the internal representation of the objects (variables, *)
-(* blocks of (co)inductive definitions and constants) and the terms of cic    *)
-(*                                                                            *)
-(******************************************************************************)
-
-(* STUFF TO MANAGE IDENTIFIERS *)
-type id = string  (* the abstract type of the (annotated) node identifiers *)
-type anntarget =
-   Object of annobj
- | Term of annterm
-
-(* INTERNAL REPRESENTATION OF CIC OBJECTS AND TERMS *)
-and sort =
-   Prop
- | Set
- | Type
-and name =
-   Name of string
- | Anonimous
-and term =
-   Rel of int                                       (* DeBrujin index *)
- | Var of UriManager.uri                            (* uri *)
- | Meta of int                                      (* numeric id *)
- | Sort of sort                                     (* sort *)
- | Implicit                                         (* *)
- | Cast of term * term                              (* value, type *)
- | Prod of name * term * term                       (* binder, source, target *)
- | Lambda of name * term * term                     (* binder, source, target *)
- | Appl of term list                                (* arguments *)
- | Const of UriManager.uri * int                    (* uri, number of cookings*)
- | Abst of UriManager.uri                           (* uri *)
- | MutInd of UriManager.uri * int * int             (* uri, cookingsno, typeno*)
- | MutConstruct of UriManager.uri * int *           (* uri, cookingsno, *)
-    int * int                                       (*  typeno, consno  *)
- (*CSC: serve cookingsno?*)
- | MutCase of UriManager.uri * int *                (* ind. uri, cookingsno, *)
-    int *                                           (*  ind. typeno,         *)
-    term * term *                                   (*  outtype, ind. term   *)
-    term list                                       (*  patterns             *)
- | Fix of int * inductiveFun list                   (* funno, functions *)
- | CoFix of int * coInductiveFun list               (* funno, functions *)
-and obj =
-   Definition of string * term * term *           (* id, value, type,         *)
-    (int * UriManager.uri list) list              (*  parameters              *)
- | Axiom of string * term *
-    (int * UriManager.uri list) list              (* id, type, parameters     *)
- | Variable of string * term                      (* name, type               *)
- | CurrentProof of string * (int * term) list *   (* name, conjectures,       *)
-    term * term                                   (*  value, type             *)
- | InductiveDefinition of inductiveType list *    (* inductive types,         *)
-    (int * UriManager.uri list) list * int        (*  parameters, n ind. pars *)
-and inductiveType = 
- string * bool * term *                       (* typename, inductive, arity *)
-  constructor list                            (*  constructors              *)
-and constructor =
- string * term * bool list option ref         (* id, type, really recursive *)
-and inductiveFun =
- string * int * term * term                   (* name, ind. index, type, body *)
-and coInductiveFun =
- string * term * term                         (* name, type, body *)
-
-and annterm =
-   ARel of id * annotation option ref *
-    int * string option                             (* DeBrujin index, binder *)
- | AVar of id * annotation option ref *             
-    UriManager.uri                                  (* uri *)
- | AMeta of id * annotation option ref * int        (* numeric id *)
- | ASort of id * annotation option ref * sort       (* sort *)
- | AImplicit of id * annotation option ref          (* *)
- | ACast of id * annotation option ref *
-    annterm * annterm                               (* value, type *)
- | AProd of id * annotation option ref *
-    name * annterm * annterm                        (* binder, source, target *)
- | ALambda of id * annotation option ref *
-    name * annterm * annterm                        (* binder, source, target *)
- | AAppl of id * annotation option ref *
-    annterm list                                    (* arguments *)
- | AConst of id * annotation option ref *
-    UriManager.uri * int                            (* uri, number of cookings*)
- | AAbst of id * annotation option ref *
-    UriManager.uri                                  (* uri *)
- | AMutInd of id * annotation option ref *
-    UriManager.uri * int * int                      (* uri, cookingsno, typeno*)
- | AMutConstruct of id * annotation option ref *
-    UriManager.uri * int *                          (* uri, cookingsno, *)
-    int * int                                       (*  typeno, consno  *)
- (*CSC: serve cookingsno?*)
- | AMutCase of id * annotation option ref *
-    UriManager.uri * int *                          (* ind. uri, cookingsno  *)
-    int *                                           (*  ind. typeno,         *)
-    annterm * annterm *                             (*  outtype, ind. term   *)
-    annterm list                                    (*  patterns             *)
- | AFix of id * annotation option ref *
-    int * anninductiveFun list                      (* funno, functions *)
- | ACoFix of id * annotation option ref *
-    int * anncoInductiveFun list                    (* funno, functions *)
-and annobj =
-   ADefinition of id * annotation option ref *
-    string *                                        (* id,           *)
-    annterm * annterm *                             (*  value, type, *)
-    (int * UriManager.uri list) list exactness      (*  parameters   *)
- | AAxiom of id * annotation option ref *
-    string * annterm *                              (* id, type    *)
-    (int * UriManager.uri list) list                (*  parameters *)
- | AVariable of id * annotation option ref *
-    string * annterm                                (* name, type *)
- | ACurrentProof of id * annotation option ref *
-    string * (int * annterm) list *                 (*  name, conjectures, *)
-    annterm * annterm                               (*  value, type        *)
- | AInductiveDefinition of id *
-    annotation option ref * anninductiveType list * (* inductive types ,      *)
-    (int * UriManager.uri list) list * int          (*  parameters,n ind. pars*)
-and anninductiveType = 
- string * bool * annterm *                    (* typename, inductive, arity *)
-  annconstructor list                         (*  constructors              *)
-and annconstructor =
- string * annterm * bool list option ref      (* id, type, really recursive *)
-and anninductiveFun =
- string * int * annterm * annterm             (* name, ind. index, type, body *)
-and anncoInductiveFun =
- string * annterm * annterm                   (* name, type, body *)
-and annotation =
- string
-and 'a exactness =
-   Possible of 'a                            (* an approximation to something *)
- | Actual of 'a                              (* something *)
-;;
diff --git a/helm/interface/cic2Xml.ml b/helm/interface/cic2Xml.ml
deleted file mode 100644
index ff16e2f70..000000000
--- a/helm/interface/cic2Xml.ml
+++ /dev/null
@@ -1,217 +0,0 @@
-(*CSC codice cut & paste da cicPp e xmlcommand *)
-
-exception ImpossiblePossible;;
-exception NotImplemented;;
-exception BinderNotSpecified;;
-
-let dtdname = "http://localhost:8081/getdtd?url=cic.dtd";;
-
-(*CSC ottimizzazione: al posto di curi cdepth (vedi codice) *)
-let print_term curi =
- let rec aux =
-  let module C = Cic in
-  let module X = Xml in
-  let module U = UriManager in
-    function
-       C.ARel (id,_,n,Some b) ->
-        X.xml_empty "REL" ["value",(string_of_int n);"binder",b;"id",id]
-     | C.ARel _ -> raise BinderNotSpecified
-     | C.AVar (id,_,uri) ->
-        let vdepth = U.depth_of_uri uri
-        and cdepth = U.depth_of_uri curi in
-         X.xml_empty "VAR"
-          ["relUri",(string_of_int (cdepth - vdepth)) ^ "," ^
-            (U.name_of_uri uri) ;
-           "id",id]
-     | C.AMeta (id,_,n) ->
-        X.xml_empty "META" ["no",(string_of_int n) ; "id",id]
-     | C.ASort (id,_,s) ->
-        let string_of_sort =
-         function
-            C.Prop -> "Prop"
-          | C.Set  -> "Set"
-          | C.Type -> "Type"
-        in
-         X.xml_empty "SORT" ["value",(string_of_sort s) ; "id",id]
-     | C.AImplicit _ -> raise NotImplemented
-     | C.AProd (id,_,C.Anonimous,s,t) ->
-        X.xml_nempty "PROD" ["id",id]
-         [< X.xml_nempty "source" [] (aux s) ;
-            X.xml_nempty "target" [] (aux t)
-         >]
-     | C.AProd (xid,_,C.Name id,s,t) ->
-       X.xml_nempty "PROD" ["id",xid]
-        [< X.xml_nempty "source" [] (aux s) ;
-           X.xml_nempty "target" ["binder",id] (aux t)
-        >]
-     | C.ACast (id,_,v,t) ->
-        X.xml_nempty "CAST" ["id",id]
-         [< X.xml_nempty "term" [] (aux v) ;
-            X.xml_nempty "type" [] (aux t)
-         >]
-     | C.ALambda (id,_,C.Anonimous,s,t) ->
-        X.xml_nempty "LAMBDA" ["id",id]
-         [< X.xml_nempty "source" [] (aux s) ;
-            X.xml_nempty "target" [] (aux t)
-         >]
-     | C.ALambda (xid,_,C.Name id,s,t) ->
-       X.xml_nempty "LAMBDA" ["id",xid]
-        [< X.xml_nempty "source" [] (aux s) ;
-           X.xml_nempty "target" ["binder",id] (aux t)
-        >]
-     | C.AAppl (id,_,li) ->
-        X.xml_nempty "APPLY" ["id",id]
-         [< (List.fold_right (fun x i -> [< (aux x) ; i >]) li [<>])
-         >]
-     | C.AConst (id,_,uri,_) ->
-        X.xml_empty "CONST" ["uri", (U.string_of_uri uri) ; "id",id]
-     | C.AAbst (id,_,uri) -> raise NotImplemented
-     | C.AMutInd (id,_,uri,_,i) ->
-        X.xml_empty "MUTIND"
-         ["uri", (U.string_of_uri uri) ;
-          "noType",(string_of_int i) ;
-          "id",id]
-     | C.AMutConstruct (id,_,uri,_,i,j) ->
-        X.xml_empty "MUTCONSTRUCT"
-         ["uri", (U.string_of_uri uri) ;
-          "noType",(string_of_int i) ; "noConstr",(string_of_int j) ;
-          "id",id]
-     | C.AMutCase (id,_,uri,_,typeno,ty,te,patterns) ->
-        X.xml_nempty "MUTCASE"
-         ["uriType",(U.string_of_uri uri) ;
-          "noType", (string_of_int typeno) ;
-          "id", id]
-         [< X.xml_nempty "patternsType" [] [< (aux ty) >] ;
-            X.xml_nempty "inductiveTerm" [] [< (aux te) >] ;
-            List.fold_right
-             (fun x i -> [< X.xml_nempty "pattern" [] [< aux x >] ; i>])
-             patterns [<>]
-         >]
-     | C.AFix (id, _, no, funs) ->
-       X.xml_nempty "FIX" ["noFun", (string_of_int no) ; "id",id]
-        [< List.fold_right
-            (fun (fi,ai,ti,bi) i ->
-              [< X.xml_nempty "FixFunction"
-                  ["name", fi; "recIndex", (string_of_int ai)]
-                  [< X.xml_nempty "type" [] [< aux ti >] ;
-                     X.xml_nempty "body" [] [< aux bi >]
-                  >] ;
-                 i
-              >]
-            ) funs [<>]
-        >]
-     | C.ACoFix (id,_,no,funs) ->
-       X.xml_nempty "COFIX" ["noFun", (string_of_int no) ; "id",id]
-        [< List.fold_right
-            (fun (fi,ti,bi) i ->
-              [< X.xml_nempty "CofixFunction" ["name", fi]
-                  [< X.xml_nempty "type" [] [< aux ti >] ;
-                     X.xml_nempty "body" [] [< aux bi >]
-                  >] ;
-                 i
-              >]
-            ) funs [<>]
-        >]
- in
-  aux
-;;
-
-let encode params =
- List.fold_right
-  (fun (n,l) i ->
-    match l with
-       [] -> i
-     | _ ->
-       string_of_int n ^ ": " ^ 
-       String.concat " " (List.map UriManager.name_of_uri l) ^
-       i
-  ) params ""
-;;
-
-let print_mutual_inductive_type curi (typename,inductive,arity,constructors) =
- let module C = Cic in
- let module X = Xml in
-  [< X.xml_nempty "InductiveType"
-      ["name",typename ;
-       "inductive",(string_of_bool inductive)
-      ]
-      [< X.xml_nempty "arity" [] (print_term curi arity) ;
-         (List.fold_right
-          (fun (name,ty,_) i ->
-            [< X.xml_nempty "Constructor" ["name",name]
-                (print_term curi ty) ;
-               i
-            >])
-          constructors
-          [<>]
-         )
-      >]
-  >]
-;;
-
-let pp obj curi =
- let module C = Cic in
- let module X = Xml in
-  match obj with
-     C.ADefinition (xid, _, id, te, ty, params) ->
-      [< X.xml_cdata "<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>\n" ;
-         X.xml_cdata ("<!DOCTYPE Definition SYSTEM \"" ^ dtdname ^ "\">\n\n") ;
-         X.xml_nempty "Definition"
-          (["name", id ; "id",xid] @
-           match params with
-              C.Possible _ -> raise ImpossiblePossible
-              (*CSC params are kept in inverted order in the internal *)
-              (* representation (the order of application)            *)
-            | C.Actual fv' -> ["params",(encode (List.rev fv'))])
-          [< X.xml_nempty "body" [] (print_term curi te) ;
-             X.xml_nempty "type"  [] (print_term curi ty) >]
-      >]
-   | C.AAxiom (xid, _, id, ty, params) ->
-      [< X.xml_cdata "<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>\n" ;
-         X.xml_cdata ("<!DOCTYPE Axiom SYSTEM \"" ^ dtdname ^ "\">\n\n") ;
-         X.xml_nempty "Axiom"
-          (*CSC params are kept in inverted order in the internal *)
-          (* representation (the order of application)            *)
-          ["name",id ; "params",(encode (List.rev params)) ; "id",xid]
-          [< X.xml_nempty "type" [] (print_term curi ty) >]
-      >]
-   | C.AVariable (xid, _, name, ty) ->
-      [< X.xml_cdata "<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>\n" ;
-         X.xml_cdata ("<!DOCTYPE Variable SYSTEM \"" ^ dtdname ^ "\">\n\n") ;
-         X.xml_nempty "Variable" ["name",name ; "id",xid]
-          [< X.xml_nempty "type" [] (print_term curi ty) >]
-      >]
-   | C.ACurrentProof (xid, _, name, conjs, bo, ty) ->
-      [< X.xml_cdata "<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>\n" ;
-         X.xml_cdata ("<!DOCTYPE CurrentProof SYSTEM \"" ^ dtdname ^ "\">\n\n");
-         X.xml_nempty "CurrentProof" ["name",name ; "id",xid]
-          [< List.fold_right
-              (fun (j,t) i ->
-                [< X.xml_nempty "Conjecture" ["no",(string_of_int j)]
-                    [< print_term curi t >] ; i >])
-              conjs [<>] ;
-             X.xml_nempty "body" [] [< print_term curi bo >] ;
-             X.xml_nempty "type" [] [< print_term curi ty >]
-          >]
-      >]
-   | C.AInductiveDefinition (xid, _, tys, params, paramsno) ->
-      let names =
-       List.map
-        (fun (typename,_,_,_) -> typename)
-        tys
-      in
-       [< X.xml_cdata "<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>\n" ;
-          X.xml_cdata ("<!DOCTYPE InductiveDefinition SYSTEM \"" ^
-           dtdname ^ "\">\n\n") ;
-          X.xml_nempty "InductiveDefinition"
-           (*CSC params are kept in inverted order in the internal *)
-           (* representation (the order of application)            *)
-           ["noParams",string_of_int paramsno ;
-            "params",(encode (List.rev params)) ;
-            "id",xid]
-          [< List.fold_right
-              (fun x i -> [< print_mutual_inductive_type curi x ; i >])
-              tys [< >]
-           >]
-       >]
-;;
diff --git a/helm/interface/cicAnnotationHinter.ml b/helm/interface/cicAnnotationHinter.ml
deleted file mode 100644
index 21f30a722..000000000
--- a/helm/interface/cicAnnotationHinter.ml
+++ /dev/null
@@ -1,337 +0,0 @@
-(******************************************************************************)
-(*                                                                            *)
-(*                               PROJECT HELM                                 *)
-(*                                                                            *)
-(*                Claudio Sacerdoti Coen <sacerdot@cs.unibo.it>               *)
-(*                                 14/06/2000                                 *)
-(*                                                                            *)
-(*                                                                            *)
-(******************************************************************************)
-
-let deactivate_hints_from annotation_window n =
- let annotation_hints = annotation_window#annotation_hints in
-  for i = n to Array.length annotation_hints - 1 do
-   annotation_hints.(i)#misc#hide ()
-  done
-;;
-
-(* CSC: orripilante *)
-(* the list of the signal ids *)
-let sig_ids = ref ([] : GtkSignal.id list);;
-
-let disconnect_hint annotation_window buttonno =
- match !sig_ids with
-    id::ids ->
-     annotation_window#annotation_hints.(buttonno)#misc#disconnect id ;
-     sig_ids := ids
-  | _ -> assert false
-;;
-
-(* link_hint annotation_window n label hint *)
-(* set the label of the nth hint button of annotation_window to label *)
-(* and the correspondent hint to hint                                 *)
-let link_hint annotation_window buttonno label hint =
- let button = annotation_window#annotation_hints.(buttonno) in
-  sig_ids :=
-   (button#connect#clicked
-    (fun () -> (annotation_window#annotation : GEdit.text)#insert hint)
-   ) :: !sig_ids ;
-  button#misc#show () ;
-  match button#children with
-     [labelw] -> (GMisc.label_cast labelw)#set_text label
-   | _ -> assert false
-;;
-
-exception TooManyHints;;
-
-let link_hints annotation_window a =
- if Array.length a > Array.length annotation_window#annotation_hints then
-  raise TooManyHints ;
- for i = List.length !sig_ids - 1 downto 0 do
-  disconnect_hint annotation_window i
- done ;
- Array.iteri
-  (fun i (label,hint) -> link_hint annotation_window i label hint) a ;
- deactivate_hints_from annotation_window (Array.length a)
-;;
-
-let list_mapi f =
- let rec aux n =
-  function
-     [] -> []
-   | he::tl -> (f n he)::(aux (n + 1) tl)
- in
-  aux 0
-;;
-
-let get_id annterm =
- let module C = Cic in
-  match annterm with
-     C.ARel (id,_,_,_)             -> id
-   | C.AVar (id,_,_)               -> id
-   | C.AMeta (id,_,_)              -> id
-   | C.ASort (id,_,_)              -> id
-   | C.AImplicit (id,_)            -> id
-   | C.ACast (id,_,_,_)            -> id
-   | C.AProd (id,_,_,_,_)          -> id
-   | C.ALambda (id,_,_,_,_)        -> id
-   | C.AAppl (id,_,_)              -> id
-   | C.AConst (id,_,_,_)           -> id
-   | C.AAbst (id,_,_)              -> id
-   | C.AMutInd (id,_,_,_,_)        -> id
-   | C.AMutConstruct (id,_,_,_,_,_)-> id
-   | C.AMutCase (id,_,_,_,_,_,_,_) -> id
-   | C.AFix (id,_,_,_)             -> id
-   | C.ACoFix (id,_,_,_)           -> id
-;;
-
-let create_hint_from_term annotation_window annterm =
- let module C = Cic in
-  match annterm with
-     C.ARel (id,_,_,_) ->
-      link_hints annotation_window
-       [| "Binder", "<attribute name = 'binder' id = '" ^ id ^ "'/>" |]
-   | C.AVar (id,_,_) ->
-      link_hints annotation_window
-       [| "relURI???", "<attribute name = 'relUri' id = '" ^ id ^ "'/>" |]
-   | C.AMeta (id,_,_) ->
-      link_hints annotation_window
-       [| "Number", "<attribute name = 'no' id = '" ^ id ^ "'/>" |]
-   | C.ASort (id,_,_) ->
-      link_hints annotation_window
-       [| "Value", "<attribute name = 'value' id = '" ^ id ^ "'/>" |]
-   | C.AImplicit (id,_) ->
-      link_hints annotation_window [| |]
-   | C.ACast (id,_,bo,ty) ->
-      let boid = get_id bo
-      and tyid = get_id ty in
-       link_hints annotation_window
-        [| "Body", "<node id = '" ^ boid ^ "'/>" ;
-           "Type", "<node id = '" ^ tyid ^ "'/>"
-        |]
-   | C.AProd (id,_,_,ty,bo) ->
-      let boid = get_id bo
-      and tyid = get_id ty in
-       link_hints annotation_window
-        [| "Binder",
-            "<attribute child = '2' name = 'binder' id = '" ^ id ^ "'/>" ;
-           "Body", "<node id = '" ^ boid ^ "'/>" ;
-           "Type", "<node id = '" ^ tyid ^ "'/>"
-        |]
-   | C.ALambda (id,_,_,ty,bo) ->
-      let boid = get_id bo
-      and tyid = get_id ty in
-       link_hints annotation_window
-        [| "Binder",
-            "<attribute child = '2' name = 'binder' id = '" ^ id ^ "'/>" ;
-           "Body", "<node id = '" ^ boid ^ "'/>" ;
-           "Type", "<node id = '" ^ tyid ^ "'/>"
-        |]
-   | C.AAppl (id,_,args) ->
-      let argsid =
-       Array.mapi
-        (fun i te -> "Argument " ^ string_of_int i, "<node id ='" ^
-          get_id te ^ "'/>")
-        (Array.of_list args)
-      in
-       link_hints annotation_window argsid
-   | C.AConst (id,_,_,_) ->
-      link_hints annotation_window
-       [| "Uri???", "<attribute name = 'uri' id = '" ^ id ^ "'/>" |]
-   | C.AAbst (id,_,_) ->
-      link_hints annotation_window
-       [| "Uri???", "<attribute name = 'uri' id = '" ^ id ^ "'/>" |]
-   | C.AMutInd (id,_,_,_,_) ->
-      link_hints annotation_window
-       [| "Uri???", "<attribute name = 'uri' id = '" ^ id ^ "'/>" |]
-   | C.AMutConstruct (id,_,_,_,_,_) ->
-      link_hints annotation_window
-       [| "Uri???", "<attribute name = 'uri' id = '" ^ id ^ "'/>" |]
-   | C.AMutCase (id,_,_,_,_,outty,te,pl) ->
-      let outtyid = get_id outty
-      and teid = get_id te
-      and plid =
-       Array.mapi
-        (fun i te -> "Pattern " ^ string_of_int i, "<node id ='" ^
-          get_id te ^ "'/>")
-        (Array.of_list pl)
-      in
-       link_hints annotation_window
-        (Array.append
-         [| "Uri???", "<attribute name = 'uri' id = '" ^ id ^ "'/>" ;
-            "Case Type", "<node id = '" ^ outtyid ^ "'/>" ;
-            "Term", "<node id = '" ^ teid ^ "'/>" ;
-         |]
-         plid)
-   | C.AFix (id,_,_,funl) ->
-      let funtylid =
-       Array.mapi
-        (fun i (_,_,ty,_) ->
-          "Type " ^ string_of_int i, "<node id ='" ^
-          get_id ty ^ "'/>")
-        (Array.of_list funl)
-      and funbolid =
-       Array.mapi
-        (fun i (_,_,_,bo) ->
-          "Body " ^ string_of_int i, "<node id ='" ^
-          get_id bo ^ "'/>")
-        (Array.of_list funl)
-      and funnamel =
-       Array.mapi
-        (fun i (_,_,_,_) ->
-          "Name " ^ string_of_int i, "<attribute id ='" ^ id ^
-           "' name = 'name' child='" ^ string_of_int i ^ "'/>")
-        (Array.of_list funl)
-      and funrecindexl =
-       Array.mapi
-        (fun i (_,_,_,_) ->
-          "Recursive Index??? " ^ string_of_int i, "<attribute id = '" ^ id ^
-           "' name = 'recIndex' child='" ^ string_of_int i ^ "'/>")
-        (Array.of_list funl)
-      in
-       link_hints annotation_window
-        (Array.concat
-         [ funtylid ;
-           funbolid ;
-           funnamel ;
-           funrecindexl ;
-           [| "NoFun???", "<attribute name = 'noFun' id = '" ^ id ^ "'/>" |]
-         ]
-        )
-   | C.ACoFix (id,_,_,funl) ->
-      let funtylid =
-       Array.mapi
-        (fun i (_,ty,_) ->
-          "Type " ^ string_of_int i, "<node id ='" ^
-          get_id ty ^ "'/>")
-        (Array.of_list funl)
-      and funbolid =
-       Array.mapi
-        (fun i (_,_,bo) ->
-          "Body " ^ string_of_int i, "<node id ='" ^
-          get_id bo ^ "'/>")
-        (Array.of_list funl)
-      and funnamel =
-       Array.mapi
-        (fun i (_,_,_) ->
-          "Name " ^ string_of_int i, "<attribute id ='" ^ id ^
-           "' name = 'name' child='" ^ string_of_int i ^ "'/>")
-        (Array.of_list funl)
-      in
-       link_hints annotation_window
-        (Array.concat
-         [ funtylid ;
-           funbolid ;
-           funnamel ;
-           [| "NoFun???", "<attribute name = 'noFun' id = '" ^ id ^ "'/>" |]
-         ]
-        )
-;;
-
-(*CSC: da riscrivere completamente eliminando il paciugo degli array - liste *)
-let create_hint_from_obj annotation_window annobj =
- let module C = Cic in
-  match annobj with
-     C.ADefinition (id,_,_,bo,ty,_) ->
-      let boid = get_id bo
-      and tyid = get_id ty in
-       link_hints annotation_window
-        [| "Name", "<attribute name = 'name' id = '" ^ id ^ "'/>" ;
-           "Ingredients", "<attribute name = 'params' id = '" ^ id ^ "'/>" ;
-           "Body", "<node id = '" ^ boid ^ "'/>" ;
-           "Type", "<node id = '" ^ tyid ^ "'/>"
-        |]
-   | C.AAxiom (id,_,_,ty,_) ->
-      let tyid = get_id ty in
-       link_hints annotation_window
-        [| "Name", "<attribute name = 'name' id = '" ^ id ^ "'/>" ;
-           "Ingredients", "<attribute name = 'params' id = '" ^ id ^ "'/>" ;
-           "Type", "<node id = '" ^ tyid ^ "'/>"
-        |]
-   | C.AVariable (id,_,_,ty) ->
-      let tyid = get_id ty in
-       link_hints annotation_window
-        [| "Name", "<attribute name = 'name' id = '" ^ id ^ "'/>" ;
-           "Type", "<node id = '" ^ tyid ^ "'/>"
-        |]
-   | C.ACurrentProof (id,_,_,conjs,bo,ty) ->
-      let boid = get_id bo
-      and tyid = get_id ty
-      and conjsid = List.map (fun (_,te) -> get_id te) conjs in
-       link_hints annotation_window
-        (Array.append
-          [| "Name", "<attribute name = 'name' id = '" ^ id ^ "'/>" ;
-             "Ingredients", "<attribute name = 'params' id = '" ^ id ^ "'/>" ;
-             "Body", "<node id = '" ^ boid ^ "'/>" ;
-             "Type", "<node id = '" ^ tyid ^ "'/>"
-          |]
-          (Array.mapi
-            (fun i id ->
-              "Conjecture " ^ string_of_int i, "<node id = '" ^ id ^ "'/>"
-            ) (Array.of_list conjsid)
-          )
-        )
-   | C.AInductiveDefinition (id,_,itl,_,_) ->
-      let itlids =
-       List.map
-        (fun (_,_,arity,cons) ->
-          get_id arity,
-          List.map (fun (_,ty,_) -> get_id ty) cons
-        ) itl
-      in
-       link_hints annotation_window
-        (Array.concat
-          [
-           [| "Ingredients","<attribute name = 'params' id = '" ^ id ^ "'/>" |];
-           (Array.mapi
-             (fun i _ ->
-               "Type Name " ^ string_of_int i,
-               "<attribute name = 'name' child = '" ^ string_of_int i ^
-                "' id = '" ^ id ^ "'/>"
-             ) (Array.of_list itlids)
-           ) ;
-           (Array.mapi
-             (fun i (id,_) ->
-               "Type " ^ string_of_int i, "<node id = '" ^ id ^ "'/>"
-             ) (Array.of_list itlids)
-           ) ;
-           (Array.concat
-            (list_mapi
-             (fun i (_,consid) ->
-              (Array.mapi
-                (fun j _ ->
-                  "Constructor Name " ^ string_of_int i ^ " " ^ string_of_int j,
-                  "<attribute name = 'name' id = '" ^ id ^ 
-                   "' child = '" ^ string_of_int i ^ "' grandchild = '" ^
-                   string_of_int j ^ "'/>"
-                ) (Array.of_list consid)
-              ) ;
-             ) itlids
-            )
-           ) ;
-           (Array.concat
-            (list_mapi
-             (fun i (_,consid) ->
-              (Array.mapi
-                (fun j id ->
-                  "Constructor " ^ string_of_int i ^ " " ^ string_of_int j,
-                  "<node id = '" ^ id ^ "'/>"
-                ) (Array.of_list consid)
-              ) ;
-             ) itlids
-            )
-           )
-          ]
-        )
-;;
-
-exception IdUnknown of string;;
-
-let create_hints annotation_window (annobj,ids_to_targets) xpath =
- try
-  match Hashtbl.find ids_to_targets xpath with
-     Cic.Object annobj -> create_hint_from_obj annotation_window annobj
-   | Cic.Term annterm -> create_hint_from_term annotation_window annterm
- with
-  Not_found -> raise (IdUnknown xpath)
-;;
diff --git a/helm/interface/cicCache.ml b/helm/interface/cicCache.ml
deleted file mode 100644
index 1b8488a40..000000000
--- a/helm/interface/cicCache.ml
+++ /dev/null
@@ -1,187 +0,0 @@
-(******************************************************************************)
-(*                                                                            *)
-(*                               PROJECT HELM                                 *)
-(*                                                                            *)
-(*                Claudio Sacerdoti Coen <sacerdot@cs.unibo.it>               *)
-(*                                 24/01/2000                                 *)
-(*                                                                            *)
-(* This module implements a trival cache system (an hash-table) for cic       *)
-(* objects. Uses the getter (getter.ml) and the parser (cicParser.ml)         *)
-(*                                                                            *)
-(******************************************************************************)
-
-let raise e = print_endline "***" ; flush stdout ; print_endline (Printexc.to_string e) ; flush stdout ; raise e;;
-
-(*CSC: forse i due seguenti tipi sono da unificare? *)
-type cooked_obj =
-   Cooked of Cic.obj
- | Frozen of Cic.obj
- | Unchecked of Cic.obj
-type type_checked_obj =
-   CheckedObj of Cic.obj     (* cooked obj *)
- | UncheckedObj of Cic.obj   (* uncooked obj *)
-;;
-
-exception NoFunctionProvided;;
-
-(* CSC: da sostituire con un (...) option ref *)
-let cook_obj = ref (fun obj uri -> raise NoFunctionProvided);;
-
-exception CircularDependency of string;;
-exception CouldNotUnfreeze of string;;
-exception Impossible;;
-exception UncookedObj;;
-
-module HashedType =
- struct
-  type t = UriManager.uri * int    (* uri, livello di cottura *)
-  let equal (u1,n1) (u2,n2) = UriManager.eq u1 u2 && n1 = n2
-  let hash = Hashtbl.hash
- end
-;;
-
-(* Hashtable that uses == instead of = for testing equality *)
-module HashTable = Hashtbl.Make(HashedType);;
-
-let hashtable = HashTable.create 271;;
-
-(* n is the number of time that the object must be cooked *)
-let get_obj_and_type_checking_info uri n =
- try
-   HashTable.find hashtable (uri,n)
- with
-  Not_found -> 
-   try
-    match HashTable.find hashtable (uri,0) with
-        Cooked _
-      | Frozen _ -> raise Impossible
-      | Unchecked _ as t -> t
-   with
-    Not_found ->
-     let filename = Getter.get uri in
-      let (annobj,_) = CicParser.term_of_xml filename uri false in
-       let obj = Deannotate.deannotate_obj annobj in
-        let output = Unchecked obj in
-         HashTable.add hashtable (uri,0) output ;
-         output
-;;
-
-(* DANGEROUS!!!                                *)
-(* USEFUL ONLY DURING THE FIXING OF THE FILES  *)
-(* change_obj uri (Some newobj)                *)
-(*  maps uri to newobj in cache.               *)
-(* change_obj uri None                         *)
-(*  maps uri to a freeze dummy-object.         *)
-let change_obj uri newobj =
- let newobj =
-  match newobj with
-     Some newobj' -> Unchecked newobj'
-   | None         -> Frozen (Cic.Variable ("frozen-dummy", Cic.Implicit))
- in
-  HashTable.remove hashtable (uri,0) ;
-  HashTable.add hashtable (uri,0) newobj
-;;
-
-let is_annotation_uri uri =
- Str.string_match (Str.regexp ".*\.ann$") (UriManager.string_of_uri uri) 0
-;;
-
-(* returns both the annotated and deannotated uncooked forms (plus the *)
-(* map from ids to annotation targets)                                 *)
-let get_annobj_and_type_checking_info uri =
- let filename = Getter.get uri in
-  match CicParser.term_of_xml filename uri true with
-     (_, None) -> raise Impossible
-   | (annobj, Some ids_to_targets) ->
-    (* If uri is the uri of an annotation, let's use the annotation file *)
-    if is_annotation_uri uri  then
-     AnnotationParser.annotate (Getter.get_ann uri) ids_to_targets ;
-    try
-      (annobj, ids_to_targets, HashTable.find hashtable (uri,0))
-    with
-     Not_found -> 
-      let obj = Deannotate.deannotate_obj annobj in
-       let output = Unchecked obj in
-        HashTable.add hashtable (uri,0) output ;
-        (annobj, ids_to_targets, output)
-;;
-
-
-(* get_obj uri                                                               *)
-(* returns the cic object whose uri is uri. If the term is not just in cache, *)
-(* then it is parsed via CicParser.term_of_xml from the file whose name is    *)
-(* the result of Getter.get uri                                               *)
-let get_obj uri =
- match get_obj_and_type_checking_info uri 0 with
-    Unchecked obj -> obj
-  | Frozen    obj -> obj
-  | Cooked    obj -> obj
-;;
-
-(* get_annobj uri                                                             *)
-(* returns the cic object whose uri is uri either in annotated and            *)
-(* deannotated form. The term is put into the cache if it's not there yet.    *)
-let get_annobj uri =
- let (ann, ids_to_targets, deann) = get_annobj_and_type_checking_info uri in
-  let deannobj =
-   match deann with
-      Unchecked obj -> obj
-    | Frozen    _   -> raise (CircularDependency (UriManager.string_of_uri uri))
-    | Cooked    obj -> obj
-  in
-   (ann, ids_to_targets, deannobj)
-;;
-
-(*CSC Commento falso *)
-(* get_obj uri                                                               *)
-(* returns the cooked cic object whose uri is uri. The term must be present  *)
-(* and cooked in cache                                                       *)
-let rec get_cooked_obj uri cookingsno =
- match get_obj_and_type_checking_info uri cookingsno with
-    Unchecked _
-  | Frozen    _ -> raise UncookedObj
-  | Cooked obj -> obj
-;;
-
-(* is_type_checked uri                                              *)
-(* CSC: commento falso ed obsoleto *)
-(* returns true if the term has been type-checked                   *)
-(* otherwise it returns false and freeze the term for type-checking *)
-(* set_type_checking_info must be called to unfreeze the term       *)
-let is_type_checked uri cookingsno =
- match get_obj_and_type_checking_info uri cookingsno with
-    Cooked obj -> CheckedObj obj
-  | Unchecked obj ->
-     HashTable.remove hashtable (uri,0) ;
-     HashTable.add hashtable (uri,0) (Frozen obj) ;
-     UncheckedObj obj
-  | Frozen _ -> raise (CircularDependency (UriManager.string_of_uri uri))
-;;
-
-(* set_type_checking_info uri                               *)
-(* must be called once the type-checking of uri is finished *)
-(* The object whose uri is uri is unfreezed                 *)
-let set_type_checking_info uri =
- match HashTable.find hashtable (uri,0) with
-    Frozen obj ->
-     (* let's cook the object at every level *)
-     HashTable.remove hashtable (uri,0) ;
-     let obj' = CicSubstitution.undebrujin_inductive_def uri obj in
-      HashTable.add hashtable (uri,0) (Cooked obj') ;
-      let cooked_objs = !cook_obj obj' uri in
-       let last_cooked_level = ref 0 in
-       let last_cooked_obj = ref obj' in
-        List.iter
-         (fun (n,cobj) ->
-           for i = !last_cooked_level + 1 to n do
-            HashTable.add hashtable (uri,i) (Cooked !last_cooked_obj)
-           done ;
-           HashTable.add hashtable (uri,n + 1) (Cooked cobj) ;
-           last_cooked_level := n + 1 ;
-           last_cooked_obj := cobj
-         ) cooked_objs ;
-        for i = !last_cooked_level + 1 to UriManager.depth_of_uri uri + 1 do
-         HashTable.add hashtable (uri,i) (Cooked !last_cooked_obj)
-        done
-  | _ -> raise (CouldNotUnfreeze (UriManager.string_of_uri uri))
-;;
diff --git a/helm/interface/cicCache.mli b/helm/interface/cicCache.mli
deleted file mode 100644
index e6cb313ce..000000000
--- a/helm/interface/cicCache.mli
+++ /dev/null
@@ -1,56 +0,0 @@
-(******************************************************************************)
-(*                                                                            *)
-(*                               PROJECT HELM                                 *)
-(*                                                                            *)
-(*                Claudio Sacerdoti Coen <sacerdot@cs.unibo.it>               *)
-(*                                 24/01/2000                                 *)
-(*                                                                            *)
-(* This module implements a trival cache system (an hash-table) for cic       *)(* objects. Uses the getter (getter.ml) and the parser (cicParser.ml)         *)(*                                                                            *)
-(******************************************************************************)
-
-exception CircularDependency of string;;
-
-(* get_obj uri                                                                *)
-(* returns the cic object whose uri is uri. If the term is not just in cache, *)
-(* then it is parsed via CicParser.term_of_xml from the file whose name is    *)
-(* the result of Getter.get uri                                               *)
-val get_obj : UriManager.uri -> Cic.obj
-
-(* get_annobj uri                                                             *)
-(* returns the cic object whose uri is uri either in annotated and in         *)
-(* deannotated form. It returns also the map from ids to annotation targets.  *)
-(* The term is put in cache if it's not there yet.                            *)
-(* The functions raise CircularDependency if asked to retrieve a Frozen object*)
-val get_annobj :
- UriManager.uri -> Cic.annobj * (Cic.id, Cic.anntarget) Hashtbl.t * Cic.obj
-
-(* DANGEROUS!!!                                *)
-(* USEFUL ONLY DURING THE FIXING OF THE FILES  *)
-(* change_obj uri (Some newobj)                *)
-(*  maps uri to newobj in cache.               *)
-(* change_obj uri None                         *)
-(*  maps uri to a freeze dummy-object.         *)
-val change_obj : UriManager.uri -> Cic.obj option -> unit
-
-type type_checked_obj =
-   CheckedObj of Cic.obj    (* cooked obj *)
- | UncheckedObj of Cic.obj  (* uncooked obj *)
-
-(* is_type_checked uri cookingsno                                   *)
-(*CSC commento falso ed obsoleto *)
-(* returns (true,object) if the object has been type-checked        *)
-(* otherwise it returns (false,object) and freeze the object for    *)
-(* type-checking                                                    *)
-(* set_type_checking_info must be called to unfreeze the object     *)
-val is_type_checked : UriManager.uri -> int -> type_checked_obj
-
-(* set_type_checking_info uri                                         *)
-(* must be called once the type-checking of uri is finished           *)
-(* The object whose uri is uri is unfreezed and won't be type-checked *)
-(* again in the future (is_type_checked will return true)             *)
-val set_type_checking_info : UriManager.uri -> unit
-
-(* get_cooked_obj uri cookingsno *)
-val get_cooked_obj : UriManager.uri -> int -> Cic.obj
-
-val cook_obj : (Cic.obj -> UriManager.uri -> (int * Cic.obj) list) ref
diff --git a/helm/interface/cicCooking.ml b/helm/interface/cicCooking.ml
deleted file mode 100644
index 4d72fb3cb..000000000
--- a/helm/interface/cicCooking.ml
+++ /dev/null
@@ -1,182 +0,0 @@
-exception Impossible;;
-exception NotImplemented of int * string;;
-exception WrongUriToConstant;;
-exception WrongUriToVariable of string;;
-exception WrongUriToInductiveDefinition;;
-
-(* mem x lol is true if x is a member of one    *)
-(* of the lists of the list of (int * list) lol *)
-let mem x lol =
- List.fold_right (fun (_,l) i -> i || List.mem x l) lol false
-;;
-
-(* cook var term *)
-let cook curi cookingsno var =
- let rec aux k =
-  let module C = Cic in
-   function
-      C.Rel n as t ->
-       (match n with
-           n when n >= k -> C.Rel (n + 1)
-         | _ -> C.Rel n
-       )
-    | C.Var uri as t ->
-       if UriManager.eq uri var then
-        C.Rel k
-       else
-        t
-    | C.Meta _ as t -> t
-    | C.Sort _ as t -> t
-    | C.Implicit as t -> t
-    | C.Cast (te, ty) -> C.Cast (aux k te, aux k ty)
-    | C.Prod (n,s,t) -> C.Prod (n, aux k s, aux (k + 1) t)
-    | C.Lambda (n,s,t) -> C.Lambda (n, aux k s, aux (k + 1) t)
-    | C.Appl (he::tl) ->
-       (* Get rid of C.Appl (C.Appl l1) l2 *)
-       let newtl = List.map (aux k) tl in
-        (match aux k he with
-            C.Appl (he'::tl') -> C.Appl (he'::(tl'@newtl))
-          | t -> C.Appl (t::newtl)
-        )
-    | C.Appl [] -> raise Impossible
-    | C.Const (uri,_) ->
-       if match CicCache.get_obj uri with
-           C.Definition (_,_,_,params) when mem var params -> true
-         | C.Definition _ -> false
-         | C.Axiom (_,_,params) when mem var params -> true
-         | C.Axiom _ -> false
-         | C.CurrentProof _ ->
-            raise (NotImplemented (2,(UriManager.string_of_uri uri)))
-         | _ -> raise WrongUriToConstant
-       then
-        C.Appl
-         ((C.Const (uri,UriManager.relative_depth curi uri cookingsno))::
-          [C.Rel k])
-       else
-        C.Const (uri,UriManager.relative_depth curi uri cookingsno)
-    | C.Abst _ as t -> t
-    | C.MutInd (uri,_,i) ->
-       if match CicCache.get_obj uri with
-           C.InductiveDefinition (_,params,_) when mem var params -> true
-         | C.InductiveDefinition _ -> false
-         | _ -> raise WrongUriToInductiveDefinition
-       then
-        C.Appl ((C.MutInd (uri,UriManager.relative_depth curi uri cookingsno,i))::[C.Rel k])
-       else
-        C.MutInd (uri,UriManager.relative_depth curi uri cookingsno,i)
-    | C.MutConstruct (uri,_,i,j) ->
-       if match CicCache.get_obj uri with
-           C.InductiveDefinition (_,params,_) when mem var params -> true
-         | C.InductiveDefinition _ -> false
-         | _ -> raise WrongUriToInductiveDefinition
-       then
-        C.Appl ((C.MutConstruct (uri,UriManager.relative_depth curi uri cookingsno,i,j))::[C.Rel k])
-       else
-        C.MutConstruct (uri,UriManager.relative_depth curi uri cookingsno,i,j)
-    | C.MutCase (uri,_,i,outt,term,pl) ->
-       let substitutedfl =
-        List.map (aux k) pl
-       in
-        C.MutCase (uri,UriManager.relative_depth curi uri cookingsno,i,
-         aux k outt,aux k term, substitutedfl)
-    | C.Fix (i,fl) ->
-       let len = List.length fl in
-       let substitutedfl =
-         List.map
-          (fun (name,i,ty,bo) -> (name,i,aux k ty, aux (k+len) bo))
-          fl
-       in
-        C.Fix (i, substitutedfl)
-    | C.CoFix (i,fl) ->
-       let len = List.length fl in
-       let substitutedfl =
-         List.map
-          (fun (name,ty,bo) -> (name,aux k ty, aux (k+len) bo))
-          fl
-       in
-        C.CoFix (i, substitutedfl)
- in
-  aux 1 
-;;
-
-let cook_gen add_binder curi cookingsno ty vars =
- let module C = Cic in
- let module U = UriManager in
-  let rec cookrec ty =
-   function
-     var::tl ->
-      let (varname, vartype) =
-       match CicCache.get_obj var with
-          C.Variable (varname, vartype) -> (varname, vartype)
-        | _ -> raise (WrongUriToVariable (U.string_of_uri var))
-      in
-       cookrec (add_binder (C.Name varname) vartype (cook curi cookingsno var ty)) tl
-   | _ -> ty
-  in
-   cookrec ty vars
-;;
-
-let cook_prod =
- cook_gen (fun n s t -> Cic.Prod (n,s,t))
-and cook_lambda =
- cook_gen (fun n s t -> Cic.Lambda (n,s,t))
-;;
-
-(*CSC: sbagliato da rifare e completare *)
-let cook_one_level obj curi cookingsno vars =
- let module C = Cic in
-  match obj with
-     C.Definition (id,te,ty,params) ->
-      let ty' = cook_prod curi cookingsno ty vars in
-      let te' = cook_lambda curi cookingsno te vars in
-       C.Definition (id,te',ty',params)
-   | C.Axiom (id,ty,parameters) ->
-      let ty' = cook_prod curi cookingsno ty vars in
-       C.Axiom (id,ty',parameters)
-   | C.Variable _ as obj -> obj
-   | C.CurrentProof (id,conjs,te,ty) ->
-      let ty' = cook_prod curi cookingsno ty vars in
-      let te' = cook_lambda curi cookingsno te vars in
-       C.CurrentProof (id,conjs,te',ty')
-   | C.InductiveDefinition (dl, params, n_ind_params) ->
-      let dl' =
-       List.map
-        (fun (name,inductive,arity,constructors) ->
-          let constructors' =
-          List.map
-           (fun (name,ty,r) ->
-             let r' = 
-              match !r with
-                 None -> raise Impossible
-               | Some r -> List.map (fun _ -> false) vars @ r
-             in
-             (name,cook_prod curi cookingsno ty vars,ref (Some r')) 
-           ) constructors
-          in
-           (name,inductive,cook_prod curi cookingsno arity vars,constructors')
-        ) dl
-      in
-       C.InductiveDefinition (dl', params, n_ind_params + List.length vars)
-;; 
-
-let cook_obj obj uri =
- let module C = Cic in
-  let params =
-   match obj with
-      C.Definition (_,_,_,params) -> params
-    | C.Axiom (_,_,params) -> params
-    | C.Variable _ -> []
-    | C.CurrentProof _ -> []
-    | C.InductiveDefinition (_,params,_) -> params
-  in
-   let rec cook_all_levels obj =
-    function
-       [] -> []
-     | (n,vars)::tl ->
-        let cooked_obj = cook_one_level obj uri (n + 1) (List.rev vars) in
-         (n,cooked_obj)::(cook_all_levels cooked_obj tl)
-   in
-    cook_all_levels obj (List.rev params)
-;;
-
-CicCache.cook_obj := cook_obj;;
diff --git a/helm/interface/cicCooking.mli b/helm/interface/cicCooking.mli
deleted file mode 100644
index 586e5d78a..000000000
--- a/helm/interface/cicCooking.mli
+++ /dev/null
@@ -1,6 +0,0 @@
-exception Impossible
-exception NotImplemented of int * string
-exception WrongUriToConstant
-exception WrongUriToVariable of string
-exception WrongUriToInductiveDefinition
-val cook_obj : Cic.obj -> UriManager.uri -> (int * Cic.obj) list
diff --git a/helm/interface/cicFindParameters.ml b/helm/interface/cicFindParameters.ml
deleted file mode 100644
index 607dd525c..000000000
--- a/helm/interface/cicFindParameters.ml
+++ /dev/null
@@ -1,137 +0,0 @@
-exception WrongUriToConstant;;
-exception WrongUriToInductiveDefinition;;
-exception CircularDependency of string;;
-
-module OrderedUris =
- struct
-  type t = UriManager.uri
-  let compare (s1 : t) (s2 : t) =
-   (* library function for = *)
-   compare s1 s2
-   (*if s1 = s2 then 0 else if s1 < s2 then (-1) else 1*)
- end
-;;
-
-let filename_of_uri uri =
- let uri' = UriManager.string_of_uri uri in
-  let fn = Str.replace_first (Str.regexp "cic:") Configuration.helm_dir uri' in
-   fn ^ ".xml"
-;;
-
-(* quite inefficient coding of a set of strings: the only operations  *)
-(* performed are mem O(log n), and union O(n * log n?)                *)
-(* Perhaps a better implementation would be an array of bits or a map *)
-(* from uri to booleans                                               *)
-module SetOfUris = Set.Make(OrderedUris);;
-
-let (@@) = SetOfUris.union;;
-
-let rec parameters_of te ty pparams=
- let module S = SetOfUris in
- let module C = Cic in
-   let rec aux =
-    function
-       C.Rel _ -> S.empty
-     | C.Var uri -> S.singleton uri
-     | C.Meta _ -> S.empty
-     | C.Sort _ -> S.empty
-     | C.Implicit -> S.empty
-     | C.Cast (te, ty) -> aux te @@ aux ty
-     | C.Prod (_, s, t) -> aux s @@ aux t
-     | C.Lambda (_, s, t) -> aux s @@ aux t
-     | C.Appl l -> List.fold_right (fun x i -> aux x @@ i) l S.empty
-     | C.Const (uri,_) ->
-        (* the parameters could be not exact but only possible *)
-        fix_params uri (Some (filename_of_uri uri)) ;
-        (* now the parameters are surely possible *)
-        (match CicCache.get_obj uri with
-            C.Definition (_, _, _, params) ->
-              List.fold_right
-               (fun (_,l) i ->
-                 List.fold_right
-                  (fun x i -> S.singleton x @@ i) l i
-               ) params S.empty
-          | C.Axiom (_, _, params) ->
-             List.fold_right
-              (fun (_,l) i ->
-                List.fold_right
-                 (fun x i -> S.singleton x @@ i) l i
-              ) params S.empty
-          | C.CurrentProof _ -> S.empty (*CSC wrong *)
-          | _ -> raise WrongUriToConstant
-        )
-     | C.Abst _ -> S.empty
-     | C.MutInd (uri,_,_) ->
-        (match CicCache.get_obj uri with
-            C.InductiveDefinition (_, params, _) ->
-             List.fold_right
-              (fun (_,l) i ->
-                List.fold_right
-                 (fun x i -> S.singleton x @@ i) l i
-              ) params S.empty
-          | _ -> raise WrongUriToInductiveDefinition
-        )
-     | C.MutConstruct (uri,_,_,_) ->
-        (match CicCache.get_obj uri with
-            C.InductiveDefinition (_, params, _) ->
-             List.fold_right
-              (fun (_,l) i ->
-                List.fold_right
-                 (fun x i -> S.singleton x @@ i) l i
-              ) params S.empty
-          | _ -> raise WrongUriToInductiveDefinition
-        )
-     | C.MutCase (uri,_,_,outtype,term,patterns) ->
-        (*CSC cosa basta? Ci vuole anche uri? *)
-        (match CicCache.get_obj uri with
-            C.InductiveDefinition (_, params, _) ->
-            List.fold_right
-             (fun (_,l) i ->
-               List.fold_right
-                (fun x i -> S.singleton x @@ i) l i
-             ) params S.empty
-          | _ -> raise WrongUriToInductiveDefinition
-        ) @@ aux outtype @@ aux term @@
-         List.fold_right (fun x i -> aux x @@ i) patterns S.empty
-     | C.Fix (_,fl) ->
-        List.fold_right
-         (fun (_,_,ty,bo) i  -> aux ty @@ aux bo @@ i)
-         fl S.empty
-     | C.CoFix (_,fl) ->
-        List.fold_right
-         (fun (_,ty,bo) i -> aux ty @@ aux bo @@ i)
-         fl S.empty
- in
-  let actual_params = aux te @@ aux ty in
-   (* sort_actual_params wants in input the ordered list of possible params *)
-   let rec sort_actual_params2 =
-    function
-       [] -> []
-     | he::tl when S.mem he actual_params -> he::(sort_actual_params2 tl)
-     | _::tl -> sort_actual_params2 tl
-   in
-    let rec sort_actual_params =
-     function
-        [] -> []
-      | (n,l)::tl -> (n, sort_actual_params2 l)::(sort_actual_params tl)
-    in
-     sort_actual_params pparams
-
-and fix_params uri filename =
- let module C = Cic in
-  let (ann, _, deann) = CicCache.get_annobj uri in
-   match ann, deann with
-      (C.ADefinition (xid, ann, id, te, ty, C.Possible pparams),
-       C.Definition (id', te', ty', _)) ->
-        (* let's freeze the object to avoid circular dependencies *)
-        CicCache.change_obj uri None ;
-        let real_params = parameters_of te' ty' pparams in
-         let fixed =
-          C.ADefinition (xid,ann,id,te,ty,C.Actual real_params)
-         in
-          Xml.pp (Cic2Xml.pp fixed uri) filename ;
-          (* unfreeze and fix the object *)
-          CicCache.change_obj uri
-           (Some (C.Definition (id', te', ty', real_params)))
-    | _ -> ()
-;;
diff --git a/helm/interface/cicParser.ml b/helm/interface/cicParser.ml
deleted file mode 100644
index ec8c5efb8..000000000
--- a/helm/interface/cicParser.ml
+++ /dev/null
@@ -1,69 +0,0 @@
-(******************************************************************************)
-(*                                                                            *)
-(*                               PROJECT HELM                                 *)
-(*                                                                            *)
-(*                Claudio Sacerdoti Coen <sacerdot@cs.unibo.it>               *)
-(*                                 24/01/2000                                 *)
-(*                                                                            *)
-(* This is the main (top level) module of a parser for cic objects from xml   *)
-(* files to the internal representation. It uses the modules cicParser2       *)
-(* (objects level) and cicParser3 (terms level)                               *)
-(*                                                                            *)
-(******************************************************************************)
-
-exception Warnings;;
-
-class warner =
-  object 
-    method warn w =
-      print_endline ("WARNING: " ^ w) ;
-      (raise Warnings : unit)
-  end
-;;
-
-exception EmptyUri;;
-
-(* given an uri u it returns the list of tokens of the base uri of u *)
-(* e.g.: token_of_uri "cic:/a/b/c/d.xml" returns ["a" ; "b" ; "c"]   *)
-let tokens_of_uri uri =
- let uri' = UriManager.string_of_uri uri in
- let rec chop_list =
-  function
-     [] -> raise EmptyUri
-   | he::[fn] -> [he]
-   | he::tl -> he::(chop_list tl)
- in
-  let trimmed_uri = Str.replace_first (Str.regexp "cic:") "" uri' in
-   let list_of_tokens = Str.split (Str.regexp "/") trimmed_uri in
-    chop_list list_of_tokens
-;;
-
-(* given the filename of an xml file of a cic object it returns its internal *)
-(* representation. process_annotations is true if the annotations do really  *)
-(* matter                                                                    *)
-let term_of_xml filename uri process_annotations =
- let module Y = Pxp_yacc in
-  try 
-    let d =
-      (* sets the current base uri to resolve relative URIs *)
-      CicParser3.current_sp := tokens_of_uri uri ;
-      CicParser3.current_uri := uri ;
-      CicParser3.process_annotations := process_annotations ;
-      CicParser3.ids_to_targets :=
-       if process_annotations then Some (Hashtbl.create 500) else None ;
-      let config = {Y.default_config with Y.warner = new warner} in
-      Y.parse_document_entity config
-(*PXP       (Y.ExtID (Pxp_types.System filename,
-         new Pxp_reader.resolve_as_file ~url_of_id ()))
-*)     (PxpUriResolver.from_file filename)
-       CicParser3.domspec
-    in
-     let ids_to_targets = !CicParser3.ids_to_targets in
-      let res = (CicParser2.get_term d#root, ids_to_targets) in
-       CicParser3.ids_to_targets := None ; (* let's help the GC *)
-       res
-  with
-   e ->
-     print_endline (Pxp_types.string_of_exn e) ;
-     raise e
-;;
diff --git a/helm/interface/cicParser.mli b/helm/interface/cicParser.mli
deleted file mode 100644
index 961a262fe..000000000
--- a/helm/interface/cicParser.mli
+++ /dev/null
@@ -1,19 +0,0 @@
-(******************************************************************************)
-(*                                                                            *)
-(*                               PROJECT HELM                                 *)
-(*                                                                            *)
-(*                Claudio Sacerdoti Coen <sacerdot@cs.unibo.it>               *)
-(*                                 22/03/2000                                 *)
-(*                                                                            *)
-(* This is the main (top level) module of a parser for cic objects from xml   *)
-(* files to the internal representation. It uses the modules cicParser2       *)
-(* (objects level) and cicParser3 (terms level)                               *)
-(*                                                                            *)
-(******************************************************************************)
-
-(* given the filename of an xml file of a cic object and it's uri, it returns *)
-(* its internal annotated representation. The boolean is set to true if the   *)
-(* annotations do really matter                                               *)
-val term_of_xml :
- string -> UriManager.uri -> bool ->
-  Cic.annobj * (Cic.id, Cic.anntarget) Hashtbl.t option
diff --git a/helm/interface/cicParser2.ml b/helm/interface/cicParser2.ml
deleted file mode 100644
index 343e22b19..000000000
--- a/helm/interface/cicParser2.ml
+++ /dev/null
@@ -1,250 +0,0 @@
-(******************************************************************************)
-(*                                                                            *)
-(*                               PROJECT HELM                                 *)
-(*                                                                            *)
-(*                Claudio Sacerdoti Coen <sacerdot@@cs.unibo.it>              *)
-(*                                 24/01/2000                                 *)
-(*                                                                            *)
-(* This module is the objects level of a parser for cic objects from xml      *)
-(* files to the internal representation. It uses the module cicParser3        *)
-(* cicParser3 (terms level) and it is used only through cicParser2 (top       *)
-(* level).                                                                    *)
-(*                                                                            *)
-(******************************************************************************)
-
-exception IllFormedXml of int;;
-exception NotImplemented;;
-
-(* Utility functions that transform a Pxp attribute into something useful *)
-
-(* mk_absolute_uris "n1: v1 ... vn n2 : u1 ... un ...."      *)
-(* returns [(n1,[absolute_uri_for_v1 ; ... ; absolute_uri_for_vn]) ; (n2,...) *)
-let mk_absolute_uris s =
- let l = (Str.split (Str.regexp ":") s) in
-  let absolute_of_relative n v =
-   let module P3 = CicParser3 in
-    let rec mkburi =
-     function
-        (0,_) -> "/"
-      | (n,he::tl) when n > 0 ->
-         "/" ^ he ^ mkburi (n - 1, tl)
-      | _ -> raise (IllFormedXml 12)
-    in
-     let m = List.length !P3.current_sp - (int_of_string n) in
-      let buri = mkburi (m, !P3.current_sp) in
-       UriManager.uri_of_string ("cic:" ^ buri ^ v ^ ".var")
-  in
-   let rec absolutize =
-    function
-       [] -> []
-     | [no ; vs] ->
-        let vars = (Str.split (Str.regexp " ") vs) in
-         [(int_of_string no, List.map (absolute_of_relative no) vars)]
-     | no::vs::tl -> 
-        let vars = (Str.split (Str.regexp " ") vs) in
-         let rec add_prefix =
-          function
-             [no2] -> ([], no2)
-           | he::tl ->
-              let (pvars, no2) = add_prefix tl in
-               ((absolute_of_relative no he)::pvars, no2)
-           | _ -> raise (IllFormedXml 11)
-         in
-          let (pvars, no2) = add_prefix vars in
-           (int_of_string no, pvars)::(absolutize (no2::tl))
-     | _ -> raise (IllFormedXml 10)
-   in
-    (* last parameter must be applied first *)
-    absolutize l
-;;
-
-let option_uri_list_of_attr a1 a2 =
- let module T = Pxp_types in
-  let parameters =
-   match a1 with
-      T.Value s -> mk_absolute_uris s
-    | _ -> raise (IllFormedXml 0)
-  in
-   match a2 with
-      T.Value "POSSIBLE" -> Cic.Possible parameters
-    | T.Implied_value -> Cic.Actual parameters
-    | _ -> raise (IllFormedXml 0)
-;;
-
-let uri_list_of_attr a =
- let module T = Pxp_types in
-  match a with
-     T.Value s -> mk_absolute_uris s
-   | _ -> raise (IllFormedXml 0)
-;;
-
-let string_of_attr a =
- let module T = Pxp_types in
-  match a with
-     T.Value s -> s
-   | _ -> raise (IllFormedXml 0)
-;;
-
-let int_of_attr a =
- int_of_string (string_of_attr a)
-;;
-
-let bool_of_attr a =
- bool_of_string (string_of_attr a)
-;;
-
-(* Other utility functions *)
-
-let get_content n =
- match n#sub_nodes with
-    [ t ] -> t
-  | _     -> raise (IllFormedXml 1)
-;;
-
-let register_id id node =
- if !CicParser3.process_annotations then
-  match !CicParser3.ids_to_targets with
-     None -> assert false
-   | Some ids_to_targets ->
-      Hashtbl.add ids_to_targets id (Cic.Object node)
-;;
-
-(* Functions that, given the list of sons of a node of the cic dom (objects   *)
-(* level), retrieve the internal representation associated to the node.       *)
-(* Everytime a cic term subtree is found, it is translated to the internal    *)
-(* representation using the method to_cic_term defined in cicParser3.         *)
-(* Each function raise IllFormedXml if something goes wrong, but this should  *)
-(* be impossible due to the presence of the dtd                               *)
-(* The functions should really be obvious looking at their name and the cic   *)
-(* dtd                                                                        *)
-
-(* called when a CurrentProof is found *)
-let get_conjs_value_type l =
- let rec rget (c, v, t) l =
-  let module D = Pxp_document in
-   match l with
-      [] -> (c, v, t)
-    | conj::tl when conj#node_type = D.T_element "Conjecture" ->
-       let no = int_of_attr (conj#attribute "no")
-       and typ = (get_content conj)#extension#to_cic_term in
-        rget ((no, typ)::c, v, t) tl
-    | value::tl when value#node_type = D.T_element "body" ->
-       let v' = (get_content value)#extension#to_cic_term in
-        (match v with
-            None -> rget (c, Some v', t) tl
-          | _    -> raise (IllFormedXml 2)
-        )
-    | typ::tl when typ#node_type = D.T_element "type" ->
-       let t' = (get_content typ)#extension#to_cic_term in
-        (match t with
-            None -> rget (c, v, Some t') tl
-          | _    -> raise (IllFormedXml 3)
-        )
-    | _ -> raise (IllFormedXml 4)
- in
-  match rget ([], None, None) l with
-     (c, Some v, Some t) -> (c, v, t)
-   | _ -> raise (IllFormedXml 5)
-;;
-
-(* used only by get_inductive_types; called one time for each inductive  *)
-(* definitions in a block of inductive definitions                       *)
-let get_names_arity_constructors l =
- let rec rget (a,c) l =
-  let module D = Pxp_document in
-   match l with
-      [] -> (a, c)
-    | arity::tl when arity#node_type = D.T_element "arity" ->
-       let a' = (get_content arity)#extension#to_cic_term in
-        rget (Some a',c) tl
-    | con::tl when con#node_type = D.T_element "Constructor" ->
-       let id = string_of_attr (con#attribute "name")
-       and ty = (get_content con)#extension#to_cic_term in
-         rget (a,(id,ty,ref None)::c) tl
-    | _ -> raise (IllFormedXml 9)
- in
-  match rget (None,[]) l with
-     (Some a, c) -> (a, List.rev c)
-   | _ -> raise (IllFormedXml 8)
-;;
-
-(* called when an InductiveDefinition is found *)
-let rec get_inductive_types =
- function
-    []     -> []
-  | he::tl ->
-     let tyname    = string_of_attr (he#attribute "name")
-     and inductive = bool_of_attr   (he#attribute "inductive")
-     and (arity,cons) =
-      get_names_arity_constructors (he#sub_nodes)
-     in
-      (tyname,inductive,arity,cons)::(get_inductive_types tl) (*CSC 0 a caso *)
-;;
-
-(* This is the main function and also the only one used directly from *)
-(* cicParser. Given the root of the dom tree, it returns the internal *)
-(* representation of the cic object described in the tree             *)
-(* It uses the previous functions and the to_cic_term method defined  *)
-(* in cicParser3 (used for subtrees that encode cic terms)            *)
-let rec get_term n =
- let module D = Pxp_document in
- let module C = Cic in
-  let ntype = n # node_type in
-  match ntype with
-    D.T_element "Definition" ->
-      let id = string_of_attr (n # attribute "name")
-      and params =
-       option_uri_list_of_attr (n#attribute "params") (n#attribute "paramMode")
-      and (value, typ) = 
-       let sons = n#sub_nodes in
-        match sons with
-          [v ; t] when
-            v#node_type = D.T_element "body" &&
-            t#node_type = D.T_element "type" ->
-             let v' = get_content v
-             and t' = get_content t in
-              (v'#extension#to_cic_term, t'#extension#to_cic_term)
-        | _ -> raise (IllFormedXml 6)
-      and xid = string_of_attr (n#attribute "id") in
-       let res = C.ADefinition (xid, ref None, id, value, typ, params) in
-        register_id xid res ;
-        res
-  | D.T_element "Axiom" ->
-      let id = string_of_attr (n # attribute "name")
-      and params = uri_list_of_attr (n # attribute "params")
-      and typ = 
-       (get_content (get_content n))#extension#to_cic_term
-      and xid = string_of_attr (n#attribute "id") in
-       let res = C.AAxiom (xid, ref None, id, typ, params) in
-        register_id xid res ;
-        res
-  | D.T_element "CurrentProof" ->
-     let name = string_of_attr (n#attribute "name")
-     and xid = string_of_attr (n#attribute "id") in
-     let sons = n#sub_nodes in
-      let (conjs, value, typ) = get_conjs_value_type sons in
-       let res = C.ACurrentProof (xid, ref None, name, conjs, value, typ) in
-        register_id xid res ;
-        res
-  | D.T_element "InductiveDefinition" ->
-     let sons = n#sub_nodes
-     and xid = string_of_attr (n#attribute "id") in
-      let inductiveTypes = get_inductive_types sons
-      and params = uri_list_of_attr (n#attribute "params")
-      and nparams = int_of_attr (n#attribute "noParams") in
-       let res =
-        C.AInductiveDefinition (xid, ref None, inductiveTypes, params, nparams)
-       in
-        register_id xid res ;
-        res
-  | D.T_element "Variable" ->
-     let name = string_of_attr (n#attribute "name")
-     and xid = string_of_attr (n#attribute "id") in
-      let typ = (get_content (get_content n))#extension#to_cic_term in
-       let res = C.AVariable (xid,ref None,name,typ) in
-        register_id xid res ;
-        res
-  | D.T_element _
-  | D.T_data ->
-     raise (IllFormedXml 7)
-;;
diff --git a/helm/interface/cicParser2.mli b/helm/interface/cicParser2.mli
deleted file mode 100644
index 50a551faf..000000000
--- a/helm/interface/cicParser2.mli
+++ /dev/null
@@ -1,32 +0,0 @@
-(******************************************************************************)
-(*                                                                            *)
-(*                               PROJECT HELM                                 *)
-(*                                                                            *)
-(*                Claudio Sacerdoti Coen <sacerdot@cs.unibo.it>               *)
-(*                                 24/01/2000                                 *)
-(*                                                                            *)
-(* This module is the objects level of a parser for cic objects from xml      *)
-(* files to the internal representation. It uses the module cicParser3        *)
-(* cicParser3 (terms level) and it is used only through cicParser2 (top       *)
-(* level).                                                                    *)
-(*                                                                            *)
-(******************************************************************************)
-
-exception IllFormedXml of int
-exception NotImplemented
-
-(* This is the main function and also the only one used directly from *)
-(* cicParser. Given the root of the dom tree, it returns the internal *)
-(* representation of the cic object described in the tree             *)
-(* It uses the previous functions and the to_cic_term method defined  *)
-(* in cicParser3 (used for subtrees that encode cic terms)            *)
-val get_term :
- < attribute : string -> Pxp_types.att_value;
-   node_type : Pxp_document.node_type;
-   sub_nodes : < attribute : string -> Pxp_types.att_value;
-                 node_type : Pxp_document.node_type;
-                 sub_nodes : CicParser3.cic_term Pxp_document.node list;
-                 .. >
-               list;
-   .. > ->
- Cic.annobj
diff --git a/helm/interface/cicParser3.ml b/helm/interface/cicParser3.ml
deleted file mode 100644
index d0c31b0f0..000000000
--- a/helm/interface/cicParser3.ml
+++ /dev/null
@@ -1,515 +0,0 @@
-(******************************************************************************)
-(*                                                                            *)
-(*                               PROJECT HELM                                 *)
-(*                                                                            *)
-(*                Claudio Sacerdoti Coen <sacerdot@cs.unibo.it>               *)
-(*                                 24/01/2000                                 *)
-(*                                                                            *)
-(* This module is the terms level of a parser for cic objects from xml        *)
-(* files to the internal representation. It is used by the module cicParser2  *)
-(* (objects level). It defines an extension of the standard dom using the     *)
-(* object-oriented extension machinery of markup: an object with a method     *)
-(* to_cic_term that returns the internal representation of the subtree is     *)
-(* added to each node of the dom tree                                         *)
-(*                                                                            *)
-(******************************************************************************)
-
-exception IllFormedXml of int;;
-
-(* The hashtable from the current identifiers to the object or the terms *)
-let ids_to_targets = ref None;;
-
-(* The list of tokens of the current section path. *)
-(* Used to resolve relative URIs                   *)
-let current_sp = ref [];;
-
-(* The uri of the object been parsed *)
-let current_uri = ref (UriManager.uri_of_string "cic:/.xml");;
-
-(* True if annotation really matter *)
-let process_annotations = ref false;;
-
-(* Utility functions to map a markup attribute to something useful *)
-
-let cic_attr_of_xml_attr =
- function
-    Pxp_types.Value s       -> Cic.Name s
-  | Pxp_types.Implied_value -> Cic.Anonimous
-  | _             -> raise (IllFormedXml 1)
-
-let cic_sort_of_xml_attr =
- function
-    Pxp_types.Value "Prop" -> Cic.Prop
-  | Pxp_types.Value "Set"  -> Cic.Set
-  | Pxp_types.Value "Type" -> Cic.Type
-  | _            -> raise (IllFormedXml 2)
-
-let int_of_xml_attr =
- function
-    Pxp_types.Value n -> int_of_string n
-  | _       -> raise (IllFormedXml 3)
-
-let uri_of_xml_attr =
- function
-    Pxp_types.Value s -> UriManager.uri_of_string s
-  | _       -> raise (IllFormedXml 4)
-
-let string_of_xml_attr =
- function
-    Pxp_types.Value s -> s
-  | _       -> raise (IllFormedXml 5)
-
-let binder_of_xml_attr =
- function
-    Pxp_types.Value s -> if !process_annotations then Some s else None
-  | _       -> raise (IllFormedXml 17)
-;;
-
-let register_id id node =
- if !process_annotations then
-  match !ids_to_targets with
-     None -> assert false
-   | Some ids_to_targets ->
-      Hashtbl.add ids_to_targets id (Cic.Term node)
-;;
-
-(* the "interface" of the class linked to each node of the dom tree *)
-
-class virtual cic_term =
-  object (self)
-
-    (* fields and methods ever required by markup *)
-    val mutable node = (None : cic_term Pxp_document.node option)
-
-    method clone = {< >} 
-    method node =
-      match node with
-          None ->
-            assert false
-        | Some n -> n
-    method set_node n =
-      node <- Some n
-
-    (* a method that returns the internal representation of the tree (term) *)
-    (* rooted in this node                                                  *)
-    method virtual to_cic_term : Cic.annterm
-  end
-;;
-
-(* the class of the objects linked to nodes that are not roots of cic terms *)
-class eltype_not_of_cic =
-  object (self)
-
-     inherit cic_term
-
-     method to_cic_term = raise (IllFormedXml 6)
-  end
-;;
-
-(* the class of the objects linked to nodes whose content is a cic term *)
-(* (syntactic sugar xml entities) e.g. <type> ... </type>               *)
-class eltype_transparent =
-  object (self)
-
-    inherit cic_term
-
-    method to_cic_term =
-     let n = self#node in
-      match n#sub_nodes with
-         [ t ]  -> t#extension#to_cic_term
-       | _  -> raise (IllFormedXml 7)
-  end
-;;
-
-(* A class for each cic node type *)
-
-class eltype_fix =
-  object (self)
-
-    inherit cic_term
-
-    method to_cic_term =
-     let n = self#node in
-      let nofun = int_of_xml_attr (n#attribute "noFun")
-      and id = string_of_xml_attr (n#attribute "id")
-      and functions =
-       let sons = n#sub_nodes in
-        List.map
-         (function
-             f when f#node_type = Pxp_document.T_element "FixFunction" ->
-              let name = string_of_xml_attr (f#attribute "name")
-              and recindex = int_of_xml_attr (f#attribute "recIndex")
-              and (ty, body) =
-               match f#sub_nodes with
-                  [t ; b] when
-                    t#node_type = Pxp_document.T_element "type" &&
-                    b#node_type = Pxp_document.T_element "body" ->
-                     (t#extension#to_cic_term, b#extension#to_cic_term)
-                | _ -> raise (IllFormedXml 14)
-              in
-               (name, recindex, ty, body)
-           | _ -> raise (IllFormedXml 13)
-         ) sons
-      in
-       let res = Cic.AFix (id, ref None, nofun, functions) in
-        register_id id res ;
-        res
-  end
-;;
-
-class eltype_cofix =
-  object (self)
-
-    inherit cic_term
-
-    method to_cic_term =
-     let n = self#node in
-      let nofun = int_of_xml_attr (n#attribute "noFun")
-      and id = string_of_xml_attr (n#attribute "id")
-      and functions =
-       let sons = n#sub_nodes in
-        List.map
-         (function
-             f when f#node_type = Pxp_document.T_element "CofixFunction" ->
-              let name = string_of_xml_attr (f#attribute "name")
-              and (ty, body) =
-               match f#sub_nodes with
-                  [t ; b] when
-                    t#node_type = Pxp_document.T_element "type" &&
-                    b#node_type = Pxp_document.T_element "body" ->
-                     (t#extension#to_cic_term, b#extension#to_cic_term)
-                | _ -> raise (IllFormedXml 16)
-              in
-               (name, ty, body)
-           | _ -> raise (IllFormedXml 15)
-         ) sons
-      in
-       let res = Cic.ACoFix (id, ref None, nofun, functions) in
-        register_id id res ;
-        res
-  end
-;;
-
-class eltype_implicit =
-  object (self)
-
-    inherit cic_term
-
-    method to_cic_term =
-     let n = self#node in
-      let id = string_of_xml_attr (n#attribute "id") in
-       let res = Cic.AImplicit (id, ref None) in
-        register_id id res ;
-        res
-  end
-;;
-
-class eltype_rel =
-  object (self)
-
-    inherit cic_term
-
-    method to_cic_term =
-     let n = self#node in
-      let value  = int_of_xml_attr (n#attribute "value")
-      and binder = binder_of_xml_attr (n#attribute "binder")
-      and id = string_of_xml_attr (n#attribute "id") in
-       let res = Cic.ARel (id,ref None,value,binder) in
-        register_id id res ;
-        res
-  end
-;;
-
-class eltype_meta =
-  object (self)
-
-    inherit cic_term
-
-    method to_cic_term =
-     let n = self#node in
-      let value = int_of_xml_attr (n#attribute "no")
-      and id = string_of_xml_attr (n#attribute "id") in
-       let res = Cic.AMeta (id,ref None,value) in
-        register_id id res ;
-        res
-  end
-;;
-
-class eltype_var =
-  object (self)
-
-    inherit cic_term
-
-    method to_cic_term =
-     let n = self#node in
-      let name = string_of_xml_attr (n#attribute "relUri")
-      and xid = string_of_xml_attr (n#attribute "id") in
-       match Str.split (Str.regexp ",") name with
-          [index; id] ->
-           let get_prefix n =
-            let rec aux =
-             function
-                (0,_) -> "/"
-              | (n,he::tl) when n > 0 -> "/" ^ he ^ aux (n - 1, tl)
-              | _ -> raise (IllFormedXml 19)
-            in   
-             aux (List.length !current_sp - n,!current_sp)
-           in
-            let res =
-             Cic.AVar
-              (xid,ref None, 
-               (UriManager.uri_of_string
-                ("cic:" ^ get_prefix (int_of_string index) ^ id ^ ".var"))
-              )
-            in
-             register_id id res ;
-             res
-        | _ -> raise (IllFormedXml 18)
-  end
-;;
-
-class eltype_apply =
-  object (self)
-
-    inherit cic_term
-
-    method to_cic_term =
-     let n = self#node in
-      let children = n#sub_nodes
-      and id = string_of_xml_attr (n#attribute "id") in
-       if List.length children < 2 then raise (IllFormedXml 8)
-       else
-        let res =
-         Cic.AAppl
-          (id,ref None,List.map (fun x -> x#extension#to_cic_term) children)
-        in
-         register_id id res ;
-         res
-  end
-;;
-
-class eltype_cast =
-  object (self)
-
-    inherit cic_term
-
-    method to_cic_term =
-     let n = self#node in
-      let sons = n#sub_nodes
-      and id = string_of_xml_attr (n#attribute "id") in
-       match sons with
-          [te ; ty] when
-            te#node_type = Pxp_document.T_element "term" &&
-            ty#node_type = Pxp_document.T_element "type" ->
-             let term = te#extension#to_cic_term
-             and typ  = ty#extension#to_cic_term in
-              let res = Cic.ACast (id,ref None,term,typ) in
-               register_id id res ;
-               res
-        | _  -> raise (IllFormedXml 9)
-  end
-;;
-
-class eltype_sort =
-  object (self)
-
-    inherit cic_term
-
-    method to_cic_term =
-     let n = self#node in
-      let sort = cic_sort_of_xml_attr (n#attribute "value")
-      and id = string_of_xml_attr (n#attribute "id") in
-       let res = Cic.ASort (id,ref None,sort) in
-        register_id id res ;
-        res
-  end
-;;
-
-class eltype_abst =
-  object (self)
-
-    inherit cic_term
-
-    method to_cic_term =
-     let n = self#node in
-      let value = uri_of_xml_attr (n#attribute "uri")
-      and id = string_of_xml_attr (n#attribute "id") in
-       let res = Cic.AAbst (id,ref None,value) in
-        register_id id res ;
-        res
-  end
-;;
-
-class eltype_const =
-  object (self)
-
-    inherit cic_term
-
-    method to_cic_term =
-     let module U = UriManager in
-      let n = self#node in
-       let value = uri_of_xml_attr (n#attribute "uri")
-       and id = string_of_xml_attr (n#attribute "id") in
-        let res =
-         Cic.AConst (id,ref None,value, U.relative_depth !current_uri value 0)
-        in
-         register_id id res ;
-         res
-  end
-;;
-
-class eltype_mutind =
-  object (self)
-
-    inherit cic_term
-
-    method to_cic_term =
-     let module U = UriManager in
-      let n = self#node in
-       let name = uri_of_xml_attr (n#attribute "uri")
-       and noType = int_of_xml_attr (n#attribute "noType")
-       and id = string_of_xml_attr (n#attribute "id") in
-        let res =
-         Cic.AMutInd
-          (id,ref None,name, U.relative_depth !current_uri name 0, noType)
-        in
-         register_id id res ;
-         res
-  end
-;;
-
-class eltype_mutconstruct =
-  object (self)
-
-    inherit cic_term
-
-    method to_cic_term =
-     let module U = UriManager in
-      let n = self#node in
-       let name = uri_of_xml_attr (n#attribute "uri")
-       and noType = int_of_xml_attr (n#attribute "noType")
-       and noConstr = int_of_xml_attr (n#attribute "noConstr")
-       and id = string_of_xml_attr (n#attribute "id") in
-        let res = 
-         Cic.AMutConstruct
-          (id, ref None, name, U.relative_depth !current_uri name 0,
-          noType, noConstr)
-        in
-         register_id id res ;
-         res
-  end
-;;
-
-class eltype_prod =
-  object (self)
-
-    inherit cic_term
-
-    method to_cic_term =
-     let n = self#node in
-      let sons = n#sub_nodes
-      and id = string_of_xml_attr (n#attribute "id") in
-       match sons with
-          [s ; t] when
-            s#node_type = Pxp_document.T_element "source" &&
-            t#node_type = Pxp_document.T_element "target" ->
-             let name = cic_attr_of_xml_attr (t#attribute "binder")
-             and source = s#extension#to_cic_term
-             and target = t#extension#to_cic_term in
-              let res = Cic.AProd (id,ref None,name,source,target) in
-               register_id id res ;
-               res
-        | _  -> raise (IllFormedXml 10)
-  end
-;;
-
-class eltype_mutcase =
-  object (self)
-
-    inherit cic_term
-
-    method to_cic_term =
-     let module U = UriManager in
-      let n = self#node in
-       let sons = n#sub_nodes
-       and id = string_of_xml_attr (n#attribute "id") in
-        match sons with
-           ty::te::patterns when
-             ty#node_type = Pxp_document.T_element "patternsType" &&
-             te#node_type = Pxp_document.T_element "inductiveTerm" ->
-              let ci = uri_of_xml_attr (n#attribute "uriType")
-              and typeno = int_of_xml_attr (n#attribute "noType")
-              and inductiveType = ty#extension#to_cic_term
-              and inductiveTerm = te#extension#to_cic_term
-              and lpattern= List.map (fun x -> x#extension#to_cic_term) patterns
-              in
-               let res =
-                Cic.AMutCase (id,ref None,ci,U.relative_depth !current_uri ci 0,
-                 typeno,inductiveType,inductiveTerm,lpattern)
-               in
-                register_id id res ;
-                res
-         | _  -> raise (IllFormedXml 11)
-  end
-;;
-
-class eltype_lambda =
-  object (self)
-
-    inherit cic_term
-
-    method to_cic_term =
-     let n = self#node in
-      let sons = n#sub_nodes
-      and id = string_of_xml_attr (n#attribute "id") in
-       match sons with
-          [s ; t] when
-            s#node_type = Pxp_document.T_element "source" &&
-            t#node_type = Pxp_document.T_element "target" ->
-             let name = cic_attr_of_xml_attr (t#attribute "binder")
-             and source = s#extension#to_cic_term
-             and target = t#extension#to_cic_term in
-              let res = Cic.ALambda (id,ref None,name,source,target) in
-               register_id id res ;
-               res
-        | _  -> raise (IllFormedXml 12)
-  end
-;;
-
-(* The definition of domspec, an hashtable that maps each node type to the *)
-(* object that must be linked to it. Used by markup.                       *)
-
-let domspec =
- let module D = Pxp_document in
-  D.make_spec_from_alist
-   ~data_exemplar: (new D.data_impl (new eltype_not_of_cic))
-   ~default_element_exemplar: (new D.element_impl (new eltype_not_of_cic))
-   ~element_alist:
-    [ "REL",           (new D.element_impl (new eltype_rel)) ;
-      "VAR",           (new D.element_impl (new eltype_var)) ;
-      "META",          (new D.element_impl (new eltype_meta)) ;
-      "SORT",          (new D.element_impl (new eltype_sort)) ;
-      "IMPLICIT",      (new D.element_impl (new eltype_implicit)) ;
-      "CAST",          (new D.element_impl (new eltype_cast)) ;
-      "PROD",          (new D.element_impl (new eltype_prod)) ;
-      "LAMBDA",        (new D.element_impl (new eltype_lambda)) ;
-      "APPLY",         (new D.element_impl (new eltype_apply)) ;
-      "CONST",         (new D.element_impl (new eltype_const)) ;
-      "ABST",          (new D.element_impl (new eltype_abst)) ;
-      "MUTIND",        (new D.element_impl (new eltype_mutind)) ;
-      "MUTCONSTRUCT",  (new D.element_impl (new eltype_mutconstruct)) ;
-      "MUTCASE",       (new D.element_impl (new eltype_mutcase)) ;
-      "FIX",           (new D.element_impl (new eltype_fix)) ;
-      "COFIX",         (new D.element_impl (new eltype_cofix)) ;
-      "arity",         (new D.element_impl (new eltype_transparent)) ;
-      "term",          (new D.element_impl (new eltype_transparent)) ;
-      "type",          (new D.element_impl (new eltype_transparent)) ;
-      "body",          (new D.element_impl (new eltype_transparent)) ;
-      "source",        (new D.element_impl (new eltype_transparent)) ;
-      "target",        (new D.element_impl (new eltype_transparent)) ;
-      "patternsType",  (new D.element_impl (new eltype_transparent)) ;
-      "inductiveTerm", (new D.element_impl (new eltype_transparent)) ;
-      "pattern",       (new D.element_impl (new eltype_transparent))
-    ]
-   ()
-;;
diff --git a/helm/interface/cicParser3.mli b/helm/interface/cicParser3.mli
deleted file mode 100644
index dd71ab6ea..000000000
--- a/helm/interface/cicParser3.mli
+++ /dev/null
@@ -1,42 +0,0 @@
-(******************************************************************************)
-(*                                                                            *)
-(*                               PROJECT HELM                                 *)
-(*                                                                            *)
-(*                Claudio Sacerdoti Coen <sacerdot@cs.unibo.it>               *)
-(*                                 24/01/2000                                 *)
-(*                                                                            *)
-(* This module is the terms level of a parser for cic objects from xml        *)
-(* files to the internal representation. It is used by the module cicParser2  *)
-(* (objects level). It defines an extension of the standard dom using the     *)
-(* object-oriented extension machinery of markup: an object with a method     *)
-(* to_cic_term that returns the internal representation of the subtree is     *)
-(* added to each node of the dom tree                                         *)
-(*                                                                            *)
-(******************************************************************************)
-
-exception IllFormedXml of int
-
-val ids_to_targets : (Cic.id, Cic.anntarget) Hashtbl.t option ref
-val current_sp : string list ref
-val current_uri : UriManager.uri ref
-val process_annotations : bool ref
-
-(* the "interface" of the class linked to each node of the dom tree *)
-class virtual cic_term :
-  object ('a)
-
-    (* fields and methods ever required by markup *)
-    val mutable node : cic_term Pxp_document.node option
-    method clone : 'a
-    method node : cic_term Pxp_document.node
-    method set_node : cic_term Pxp_document.node -> unit
-
-    (* a method that returns the internal representation of the tree (term) *)
-    (* rooted in this node                                                  *)
-    method virtual to_cic_term : Cic.annterm
-
-  end
-
-(* The definition of domspec, an hashtable that maps each node type to the *)
-(* object that must be linked to it. Used by markup.                       *)
-val domspec : cic_term Pxp_document.spec
diff --git a/helm/interface/cicPp.ml b/helm/interface/cicPp.ml
deleted file mode 100644
index 932978664..000000000
--- a/helm/interface/cicPp.ml
+++ /dev/null
@@ -1,183 +0,0 @@
-(******************************************************************************)
-(*                                                                            *)
-(*                               PROJECT HELM                                 *)
-(*                                                                            *)
-(*                Claudio Sacerdoti Coen <sacerdot@cs.unibo.it>               *)
-(*                                 24/01/2000                                 *)
-(*                                                                            *)
-(* This module implements a very simple Coq-like pretty printer that, given   *)
-(* an object of cic (internal representation) returns a string describing the *)
-(* object in a syntax similar to that of coq                                  *)
-(*                                                                            *)
-(******************************************************************************)
-
-exception CicPpInternalError;;
-
-(* Utility functions *)
-
-let string_of_name =
- function
-    Cic.Name s     -> s
-  | Cic.Anonimous  -> "_"
-;;
-
-(* get_nth l n   returns the nth element of the list l if it exists or raise *)
-(* a CicPpInternalError if l has less than n elements or n < 1               *)
-let rec get_nth l n =
- match (n,l) with
-    (1, he::_) -> he
-  | (n, he::tail) when n > 1 -> get_nth tail (n-1)
-  | (_,_) -> raise CicPpInternalError
-;;
-
-(* pp t l                                                                  *)
-(* pretty-prints a term t of cic in an environment l where l is a list of  *)
-(* identifier names used to resolve DeBrujin indexes. The head of l is the *)
-(* name associated to the greatest DeBrujin index in t                     *)
-let rec pp t l =
- let module C = Cic in
-   match t with
-      C.Rel n ->
-       (match get_nth l n with
-           C.Name s -> s
-         | _        -> raise CicPpInternalError
-       )
-    | C.Var uri -> UriManager.name_of_uri uri
-    | C.Meta n -> "?" ^ (string_of_int n)
-    | C.Sort s ->
-       (match s with
-           C.Prop -> "Prop"
-         | C.Set  -> "Set"
-         | C.Type -> "Type"
-       )
-    | C.Implicit -> "?"
-    | C.Prod (b,s,t) ->
-       (match b with
-          C.Name n -> "(" ^ n ^ ":" ^ pp s l ^ ")" ^ pp t (b::l)
-        | C.Anonimous -> "(" ^ pp s l ^ "->" ^ pp t (b::l) ^ ")"
-       )
-    | C.Cast (v,t) -> pp v l
-    | C.Lambda (b,s,t) ->
-       "[" ^ string_of_name b ^ ":" ^ pp s l ^ "]" ^ pp t (b::l)
-    | C.Appl li ->
-       "(" ^
-       (List.fold_right
-        (fun x i -> pp x l ^ (match i with "" -> "" | _ -> " ") ^ i)
-        li ""
-       ) ^ ")"
-    | C.Const (uri,_) -> UriManager.name_of_uri uri
-    | C.Abst uri -> UriManager.name_of_uri uri
-    | C.MutInd (uri,_,n) ->
-       (match CicCache.get_obj uri with
-           C.InductiveDefinition (dl,_,_) ->
-            let (name,_,_,_) = get_nth dl (n+1) in
-             name
-         | _ -> raise CicPpInternalError
-       )
-    | C.MutConstruct (uri,_,n1,n2) ->
-       (match CicCache.get_obj uri with
-           C.InductiveDefinition (dl,_,_) ->
-            let (_,_,_,cons) = get_nth dl (n1+1) in
-             let (id,_,_) = get_nth cons n2 in
-              id
-         | _ -> raise CicPpInternalError
-       )
-    | C.MutCase (uri,_,n1,ty,te,patterns) ->
-       let connames =
-        (match CicCache.get_obj uri with
-            C.InductiveDefinition (dl,_,_) ->
-             let (_,_,_,cons) = get_nth dl (n1+1) in
-              List.map (fun (id,_,_) -> id) cons
-          | _ -> raise CicPpInternalError
-        )
-       in
-        "\n<" ^ pp ty l ^ ">Cases " ^ pp te l ^ " of " ^
-          List.fold_right (fun (x,y) i -> "\n " ^ x ^ " => " ^ pp y l ^ i)
-           (List.combine connames patterns) "" ^
-          "\nend"
-    | C.Fix (no, funs) ->
-       let snames = List.map (fun (name,_,_,_) -> name) funs in
-        let names = List.rev (List.map (function name -> C.Name name) snames) in
-         "\nFix " ^ get_nth snames (no + 1) ^ " {" ^
-         List.fold_right
-          (fun (name,ind,ty,bo) i -> "\n" ^ name ^ " / " ^ string_of_int ind ^
-            " : " ^ pp ty l ^ " := \n" ^
-            pp bo (names@l) ^ i)
-          funs "" ^
-         "}\n"
-    | C.CoFix (no,funs) ->
-       let snames = List.map (fun (name,_,_) -> name) funs in
-        let names = List.rev (List.map (function name -> C.Name name) snames) in
-         "\nCoFix " ^ get_nth snames (no + 1) ^ " {" ^
-         List.fold_right
-          (fun (name,ty,bo) i -> "\n" ^ name ^ 
-            " : " ^ pp ty l ^ " := \n" ^
-            pp bo (names@l) ^ i)
-          funs "" ^
-         "}\n"
-;;
-
-(* ppinductiveType (typename, inductive, arity, cons) names                 *)
-(* pretty-prints a single inductive definition (typename, inductive, arity, *)
-(*  cons) where the cic terms in the inductive definition need to be        *)
-(*  evaluated in the environment names that is the list of typenames of the *)
-(*  mutual inductive definitions defined in the block of mutual inductive   *)
-(*  definitions to which this one belongs to                                *)
-let ppinductiveType (typename, inductive, arity, cons) names =
-  (if inductive then "\nInductive " else "\nCoInductive ") ^ typename ^ ": " ^
-  (*CSC: bug found: was pp arity names ^ " =\n   " ^*)
-  pp arity [] ^ " =\n   " ^
-  List.fold_right
-   (fun (id,ty,_) i -> id ^ " : " ^ pp ty names ^ 
-    (if i = "" then "\n" else "\n | ") ^ i)
-   cons ""
-;;
-
-(* ppobj obj  returns a string with describing the cic object obj in a syntax *)
-(* similar to the one used by Coq                                             *)
-let ppobj obj =
- let module C = Cic in
- let module U = UriManager in
-  match obj with
-    C.Definition (id, t1, t2, params) ->
-      "Definition of " ^ id ^
-      "(" ^
-      List.fold_right
-       (fun (_,x) i ->
-         List.fold_right
-          (fun x i ->
-            U.string_of_uri x ^ match i with "" -> "" | i' -> " " ^ i'
-          ) x "" ^ match i with "" -> "" | i' -> " " ^ i'
-       ) params "" ^ ")" ^
-      ":\n" ^ pp t1 [] ^ " : " ^ pp t2 []
-   | C.Axiom (id, ty, params) ->
-      "Axiom " ^ id ^ "(" ^
-      List.fold_right
-       (fun (_,x) i ->
-         List.fold_right
-          (fun x i ->
-            U.string_of_uri x ^ match i with "" -> "" | i' -> " " ^ i'
-          ) x "" ^ match i with "" -> "" | i' -> " " ^ i'
-       ) params "" ^
-      "):\n" ^ pp ty []
-   | C.Variable (name, ty) ->
-      "Variable " ^ name ^ ":\n" ^ pp ty []
-   | C.CurrentProof (name, conjectures, value, ty) ->
-      "Current Proof:\n" ^
-      List.fold_right
-       (fun (n, t) i -> "?" ^ (string_of_int n) ^ ": " ^ pp t [] ^ "\n" ^ i)
-       conjectures "" ^
-      "\n" ^ pp value [] ^ " : " ^ pp ty [] 
-   | C.InductiveDefinition (l, params, nparams) ->
-      "Parameters = " ^
-      List.fold_right
-       (fun (_,x) i ->
-         List.fold_right
-          (fun x i ->
-            U.string_of_uri x ^ match i with "" -> "" | i' -> " " ^ i'
-          ) x "" ^ match i with "" -> "" | i' -> " " ^ i'
-       ) params "" ^ "\n" ^
-      "NParams = " ^ string_of_int nparams ^ "\n" ^
-      let names = List.rev (List.map (fun (n,_,_,_) -> C.Name n) l) in
-       List.fold_right (fun x i -> ppinductiveType x names ^ i) l ""
-;;
diff --git a/helm/interface/cicPp.mli b/helm/interface/cicPp.mli
deleted file mode 100644
index 166079936..000000000
--- a/helm/interface/cicPp.mli
+++ /dev/null
@@ -1,16 +0,0 @@
-(******************************************************************************)
-(*                                                                            *)
-(*                               PROJECT HELM                                 *)
-(*                                                                            *)
-(*                Claudio Sacerdoti Coen <sacerdot@cs.unibo.it>               *)
-(*                                 24/01/2000                                 *)
-(*                                                                            *)
-(* This module implements a very simple Coq-like pretty printer that, given   *)
-(* an object of cic (internal representation) returns a string describing the *)
-(* object in a syntax similar to that of coq                                  *)
-(*                                                                            *)
-(******************************************************************************)
-
-(* ppobj obj  returns a string with describing the cic object obj in a syntax *)
-(* similar to the one used by Coq                                             *)
-val ppobj : Cic.obj -> string
diff --git a/helm/interface/cicReduction.ml b/helm/interface/cicReduction.ml
deleted file mode 100644
index 6497cd378..000000000
--- a/helm/interface/cicReduction.ml
+++ /dev/null
@@ -1,253 +0,0 @@
-exception CicReductionInternalError;;
-exception WrongUriToInductiveDefinition;;
-
-let fdebug = ref 1;;
-let debug t env s =
- let rec debug_aux t i =
-  let module C = Cic in
-  let module U = UriManager in
-   CicPp.ppobj (C.Variable ("DEBUG",
-    C.Prod (C.Name "-9", C.Const (U.uri_of_string "cic:/dummy-9",0),
-     C.Prod (C.Name "-8", C.Const (U.uri_of_string "cic:/dummy-8",0),
-      C.Prod (C.Name "-7", C.Const (U.uri_of_string "cic:/dummy-7",0),
-       C.Prod (C.Name "-6", C.Const (U.uri_of_string "cic:/dummy-6",0),
-        C.Prod (C.Name "-5", C.Const (U.uri_of_string "cic:/dummy-5",0),
-         C.Prod (C.Name "-4", C.Const (U.uri_of_string "cic:/dummy-4",0),
-          C.Prod (C.Name "-3", C.Const (U.uri_of_string "cic:/dummy-3",0),
-           C.Prod (C.Name "-2", C.Const (U.uri_of_string "cic:/dummy-2",0),
-            C.Prod (C.Name "-1", C.Const (U.uri_of_string "cic:/dummy-1",0),
-             t
-            )
-           )
-          )
-         )
-        )
-       )
-      )
-     )
-    )
-    )) ^ "\n" ^ i
- in
-  if !fdebug = 0 then
-   begin
-    print_endline (s ^ "\n" ^ List.fold_right debug_aux (t::env) "") ;
-    flush stdout
-   end
-;;
-
-exception Impossible of int;;
-exception ReferenceToDefinition;;
-exception ReferenceToAxiom;;
-exception ReferenceToVariable;;
-exception ReferenceToCurrentProof;;
-exception ReferenceToInductiveDefinition;;
-
-(* takes a well-typed term *)
-let whd =
- let rec whdaux l =
-  let module C = Cic in
-  let module S = CicSubstitution in
-   function
-      C.Rel _ as t -> if l = [] then t else C.Appl (t::l)
-    | C.Var _ as t -> if l = [] then t else C.Appl (t::l)
-    | C.Meta _ as t -> if l = [] then t else C.Appl (t::l)
-    | C.Sort _ as t -> t (* l should be empty *)
-    | C.Implicit as t -> t
-    | C.Cast (te,ty) -> whdaux l te  (*CSC E' GIUSTO BUTTARE IL CAST? *)
-    | C.Prod _ as t -> t (* l should be empty *)
-    | C.Lambda (name,s,t) as t' ->
-       (match l with
-           [] -> t'
-         | he::tl -> whdaux tl (S.subst he t)
-           (* when name is Anonimous the substitution should be superfluous *)
-       )
-    | C.Appl (he::tl) -> whdaux (tl@l) he
-    | C.Appl [] -> raise (Impossible 1)
-    | C.Const (uri,cookingsno) as t ->
-       (match CicCache.get_cooked_obj uri cookingsno with
-           C.Definition (_,body,_,_) -> whdaux l body
-         | C.Axiom _ -> if l = [] then t else C.Appl (t::l)
-         (*CSC: Prossima riga sbagliata: Var punta alle variabili, non Const *)
-         | C.Variable _ -> if l = [] then t else C.Appl (t::l)
-         | C.CurrentProof (_,_,body,_) -> whdaux l body
-         | C.InductiveDefinition _ -> raise ReferenceToInductiveDefinition
-       )
-    | C.Abst _ as t -> t (*CSC l should be empty ????? *)
-    | C.MutInd (uri,_,_) as t -> if l = [] then t else C.Appl (t::l)
-    | C.MutConstruct (uri,_,_,_) as t -> if l = [] then t else C.Appl (t::l)
-    | C.MutCase (mutind,cookingsno,i,_,term,pl) as t ->
-       let decofix =
-        function
-           C.CoFix (i,fl) as t ->
-            let (_,_,body) = List.nth fl i in
-             let body' =
-              let counter = ref (List.length fl) in
-               List.fold_right
-                (fun _ -> decr counter ; S.subst (C.CoFix (!counter,fl)))
-                fl
-                body
-             in
-              whdaux [] body'
-         | C.Appl (C.CoFix (i,fl) :: tl) ->
-            let (_,_,body) = List.nth fl i in
-             let body' =
-              let counter = ref (List.length fl) in
-               List.fold_right
-                (fun _ -> decr counter ; S.subst (C.CoFix (!counter,fl)))
-                fl
-                body
-             in
-              whdaux tl body'
-         | t -> t
-       in
-        (match decofix (whdaux [] term) with
-            C.MutConstruct (_,_,_,j) -> whdaux l (List.nth pl (j-1))
-          | C.Appl (C.MutConstruct (_,_,_,j) :: tl) ->
-             let (arity, r, num_ingredients) =
-              match CicCache.get_obj mutind with
-                 C.InductiveDefinition (tl,ingredients,r) ->
-                   let (_,_,arity,_) = List.nth tl i
-                   and num_ingredients =
-                    List.fold_right
-                     (fun (k,l) i ->
-                       if k < cookingsno then i + List.length l else i
-                     ) ingredients 0
-                   in
-                    (arity,r,num_ingredients)
-               | _ -> raise WrongUriToInductiveDefinition
-             in
-              let ts =
-               let num_to_eat = r + num_ingredients in
-                let rec eat_first =
-                 function
-                    (0,l) -> l
-                  | (n,he::tl) when n > 0 -> eat_first (n - 1, tl)
-                  | _ -> raise (Impossible 5)
-                in
-                 eat_first (num_to_eat,tl)
-              in
-               whdaux (ts@l) (List.nth pl (j-1))
-         | C.Abst _| C.Cast _ | C.Implicit ->
-            raise (Impossible 2) (* we don't trust our whd ;-) *)
-         | _ -> t
-       )
-    | C.Fix (i,fl) as t ->
-       let (_,recindex,_,body) = List.nth fl i in
-        let recparam =
-         try
-          Some (List.nth l recindex)
-         with
-          _ -> None
-        in
-         (match recparam with
-             Some recparam ->
-              (match whdaux [] recparam with
-                  C.MutConstruct _
-                | C.Appl ((C.MutConstruct _)::_) ->
-                   let body' =
-                    let counter = ref (List.length fl) in
-                     List.fold_right
-                      (fun _ -> decr counter ; S.subst (C.Fix (!counter,fl)))
-                      fl
-                      body
-                   in
-                    (* Possible optimization: substituting whd recparam in l *)
-                    whdaux l body'
-               | _ -> if l = [] then t else C.Appl (t::l)
-             )
-          | None -> if l = [] then t else C.Appl (t::l)
-         )
-    | C.CoFix (i,fl) as t ->
-       (*CSC vecchio codice
-       let (_,_,body) = List.nth fl i in
-        let body' =
-         let counter = ref (List.length fl) in
-          List.fold_right
-           (fun _ -> decr counter ; S.subst (C.CoFix (!counter,fl)))
-           fl
-           body
-        in
-         whdaux l body'
-       *)
-       if l = [] then t else C.Appl (t::l)
- in
-  whdaux []
-;;
-
-(* t1, t2 must be well-typed *)
-let are_convertible t1 t2 =
- let module U = UriManager in
- let rec aux t1 t2 =
-  debug t1 [t2] "PREWHD";
-  (* this trivial euristic cuts down the total time of about five times ;-) *)
-  (* this because most of the time t1 and t2 are "sintactically" the same   *)
-  if t1 = t2 then
-   true
-  else
-   begin
-    let module C = Cic in
-     let t1' = whd t1 
-     and t2' = whd t2 in
-     debug t1' [t2'] "POSTWHD";
-     (*if !fdebug = 0 then ignore(Unix.system "read" );*)
-      match (t1',t2') with
-         (C.Rel n1, C.Rel n2) -> n1 = n2
-       | (C.Var uri1, C.Var uri2) -> U.eq uri1 uri2
-       | (C.Meta n1, C.Meta n2) -> n1 = n2
-       | (C.Sort s1, C.Sort s2) -> true (*CSC da finire con gli universi *)
-       | (C.Prod (_,s1,t1), C.Prod(_,s2,t2)) ->
-          aux s1 s2 && aux t1 t2
-       | (C.Lambda (_,s1,t1), C.Lambda(_,s2,t2)) ->
-          aux s1 s2 && aux t1 t2
-       | (C.Appl l1, C.Appl l2) ->
-          (try
-            List.fold_right2 (fun  x y b -> aux x y && b) l1 l2 true 
-           with
-            Invalid_argument _ -> false
-          )
-       | (C.Const (uri1,_), C.Const (uri2,_)) ->
-           (*CSC: questo commento e' chiaro o delirante? Io lo sto scrivendo *)
-           (*CSC: mentre sono delirante, quindi ...                          *)
-           (* WARNING: it is really important that the two cookingsno are not *)
-           (* checked for equality. This allows not to cook an object with no *)
-           (* ingredients only to update the cookingsno. E.g: if a term t has *)
-           (* a reference to a term t1 which does not depend on any variable  *)
-           (* and t1 depends on a term t2 (that can't depend on any variable  *)
-           (* because of t1), then t1 cooked at every level could be the same *)
-           (* as t1 cooked at level 0. Doing so, t2 will be extended in t     *)
-           (* with cookingsno 0 and not 2. But this will not cause any trouble*)
-           (* if here we don't check that the two cookingsno are equal.       *)
-           U.eq uri1 uri2
-       | (C.MutInd (uri1,k1,i1), C.MutInd (uri2,k2,i2)) ->
-           (* WARNIG: see the previous warning *)
-           U.eq uri1 uri2 && i1 = i2
-       | (C.MutConstruct (uri1,_,i1,j1), C.MutConstruct (uri2,_,i2,j2)) ->
-           (* WARNIG: see the previous warning *)
-           U.eq uri1 uri2 && i1 = i2 && j1 = j2
-       | (C.MutCase (uri1,_,i1,outtype1,term1,pl1),
-          C.MutCase (uri2,_,i2,outtype2,term2,pl2)) -> 
-           (* WARNIG: see the previous warning *)
-           (* aux outtype1 outtype2 should be true if aux pl1 pl2 *)
-           U.eq uri1 uri2 && i1 = i2 && aux outtype1 outtype2 &&
-            aux term1 term2 &&
-            List.fold_right2 (fun x y b -> b && aux x y) pl1 pl2 true
-       | (C.Fix (i1,fl1), C.Fix (i2,fl2)) ->
-          i1 = i2 &&
-           List.fold_right2
-            (fun (_,recindex1,ty1,bo1) (_,recindex2,ty2,bo2) b ->
-              b && recindex1 = recindex2 && aux ty1 ty2 && aux bo1 bo2)
-            fl1 fl2 true
-       | (C.CoFix (i1,fl1), C.CoFix (i2,fl2)) ->
-          i1 = i2 &&
-           List.fold_right2
-            (fun (_,ty1,bo1) (_,ty2,bo2) b ->
-              b && aux ty1 ty2 && aux bo1 bo2)
-            fl1 fl2 true
-       | (C.Abst _, _) | (_, C.Abst _) | (C.Cast _, _) | (_, C.Cast _)
-       | (C.Implicit, _) | (_, C.Implicit) ->
-          raise (Impossible 3) (* we don't trust our whd ;-) *)
-       | (_,_) -> false
-   end
- in
-  aux t1 t2
-;;
diff --git a/helm/interface/cicReduction.mli b/helm/interface/cicReduction.mli
deleted file mode 100644
index bcc91b011..000000000
--- a/helm/interface/cicReduction.mli
+++ /dev/null
@@ -1,9 +0,0 @@
-exception WrongUriToInductiveDefinition
-exception ReferenceToDefinition
-exception ReferenceToAxiom
-exception ReferenceToVariable
-exception ReferenceToCurrentProof
-exception ReferenceToInductiveDefinition
-val fdebug : int ref
-val whd : Cic.term -> Cic.term
-val are_convertible : Cic.term -> Cic.term -> bool
diff --git a/helm/interface/cicSubstitution.ml b/helm/interface/cicSubstitution.ml
deleted file mode 100644
index e69a8a96a..000000000
--- a/helm/interface/cicSubstitution.ml
+++ /dev/null
@@ -1,115 +0,0 @@
-let lift n =
- let rec liftaux k =
-  let module C = Cic in
-   function
-      C.Rel m ->
-       if m < k then
-        C.Rel m
-       else
-        C.Rel (m + n)
-    | C.Var _  as t -> t
-    | C.Meta _ as t -> t
-    | C.Sort _ as t -> t
-    | C.Implicit as t -> t
-    | C.Cast (te,ty) -> C.Cast (liftaux k te, liftaux k ty)
-    | C.Prod (n,s,t) -> C.Prod (n, liftaux k s, liftaux (k+1) t)
-    | C.Lambda (n,s,t) -> C.Lambda (n, liftaux k s, liftaux (k+1) t)
-    | C.Appl l -> C.Appl (List.map (liftaux k) l)
-    | C.Const _ as t -> t
-    | C.Abst _  as t -> t
-    | C.MutInd _ as t -> t
-    | C.MutConstruct _ as t -> t
-    | C.MutCase (sp,cookingsno,i,outty,t,pl) ->
-       C.MutCase (sp, cookingsno, i, liftaux k outty, liftaux k t,
-        List.map (liftaux k) pl)
-    | C.Fix (i, fl) ->
-       let len = List.length fl in
-       let liftedfl =
-        List.map
-         (fun (name, i, ty, bo) -> (name, i, liftaux k ty, liftaux (k+len) bo))
-          fl
-       in
-        C.Fix (i, liftedfl)
-    | C.CoFix (i, fl) ->
-       let len = List.length fl in
-       let liftedfl =
-        List.map
-         (fun (name, ty, bo) -> (name, liftaux k ty, liftaux (k+len) bo))
-          fl
-       in
-        C.CoFix (i, liftedfl)
- in
-  liftaux 1
-;;
-
-let subst arg =
- let rec substaux k =
-  let module C = Cic in
-   function
-      C.Rel n as t ->
-       (match n with
-           n when n = k -> lift (k - 1) arg
-         | n when n < k -> t
-         | _            -> C.Rel (n - 1)
-       )
-    | C.Var _ as t  -> t
-    | C.Meta _ as t -> t
-    | C.Sort _ as t -> t
-    | C.Implicit as t -> t
-    | C.Cast (te,ty) -> C.Cast (substaux k te, substaux k ty) (*CSC ??? *)
-    | C.Prod (n,s,t) -> C.Prod (n, substaux k s, substaux (k + 1) t)
-    | C.Lambda (n,s,t) -> C.Lambda (n, substaux k s, substaux (k + 1) t)
-    | C.Appl l -> C.Appl (List.map (substaux k) l)
-    | C.Const _ as t -> t
-    | C.Abst _ as t -> t
-    | C.MutInd _ as t -> t
-    | C.MutConstruct _ as t -> t
-    | C.MutCase (sp,cookingsno,i,outt,t,pl) ->
-       C.MutCase (sp,cookingsno,i,substaux k outt, substaux k t,
-        List.map (substaux k) pl)
-    | C.Fix (i,fl) ->
-       let len = List.length fl in
-       let substitutedfl =
-        List.map
-         (fun (name,i,ty,bo) -> (name, i, substaux k ty, substaux (k+len) bo))
-          fl
-       in
-        C.Fix (i, substitutedfl)
-    | C.CoFix (i,fl) ->
-       let len = List.length fl in
-       let substitutedfl =
-        List.map
-         (fun (name,ty,bo) -> (name, substaux k ty, substaux (k+len) bo))
-          fl
-       in
-        C.CoFix (i, substitutedfl)
- in
-  substaux 1
-;;
-
-let undebrujin_inductive_def uri =
- function
-    Cic.InductiveDefinition (dl,params,n_ind_params) ->
-     let dl' =
-      List.map
-       (fun (name,inductive,arity,constructors) ->
-         let constructors' =
-          List.map
-           (fun (name,ty,r) ->
-             let ty' =
-              let counter = ref (List.length dl) in
-               List.fold_right
-                (fun _ ->
-                  decr counter ;
-                  subst (Cic.MutInd (uri,0,!counter))
-                ) dl ty
-             in
-              (name,ty',r)
-           ) constructors
-         in
-          (name,inductive,arity,constructors')
-       ) dl
-      in
-       Cic.InductiveDefinition (dl', params, n_ind_params)
-  | obj -> obj
-;;
diff --git a/helm/interface/cicSubstitution.mli b/helm/interface/cicSubstitution.mli
deleted file mode 100644
index f83cf05e0..000000000
--- a/helm/interface/cicSubstitution.mli
+++ /dev/null
@@ -1,3 +0,0 @@
-val lift : int -> Cic.term -> Cic.term
-val subst : Cic.term -> Cic.term -> Cic.term
-val undebrujin_inductive_def : UriManager.uri -> Cic.obj -> Cic.obj
diff --git a/helm/interface/cicTypeChecker.ml b/helm/interface/cicTypeChecker.ml
deleted file mode 100644
index 63433937b..000000000
--- a/helm/interface/cicTypeChecker.ml
+++ /dev/null
@@ -1,1200 +0,0 @@
-exception NotImplemented;;
-exception Impossible;;
-exception NotWellTyped of string;;
-exception WrongUriToConstant of string;;
-exception WrongUriToVariable of string;;
-exception WrongUriToMutualInductiveDefinitions of string;;
-exception ListTooShort;;
-exception NotPositiveOccurrences of string;;
-exception NotWellFormedTypeOfInductiveConstructor of string;;
-exception WrongRequiredArgument of string;;
-
-let fdebug = ref 0;;
-let debug t env =
- let rec debug_aux t i =
-  let module C = Cic in
-  let module U = UriManager in
-   CicPp.ppobj (C.Variable ("DEBUG",
-    C.Prod (C.Name "-15", C.Const (U.uri_of_string "cic:/dummy-15",0),
-    C.Prod (C.Name "-14", C.Const (U.uri_of_string "cic:/dummy-14",0),
-    C.Prod (C.Name "-13", C.Const (U.uri_of_string "cic:/dummy-13",0),
-    C.Prod (C.Name "-12", C.Const (U.uri_of_string "cic:/dummy-12",0),
-    C.Prod (C.Name "-11", C.Const (U.uri_of_string "cic:/dummy-11",0),
-    C.Prod (C.Name "-10", C.Const (U.uri_of_string "cic:/dummy-10",0),
-    C.Prod (C.Name "-9", C.Const (U.uri_of_string "cic:/dummy-9",0),
-    C.Prod (C.Name "-8", C.Const (U.uri_of_string "cic:/dummy-8",0),
-    C.Prod (C.Name "-7", C.Const (U.uri_of_string "cic:/dummy-7",0),
-    C.Prod (C.Name "-6", C.Const (U.uri_of_string "cic:/dummy-6",0),
-     C.Prod (C.Name "-5", C.Const (U.uri_of_string "cic:/dummy-5",0),
-      C.Prod (C.Name "-4", C.Const (U.uri_of_string "cic:/dummy-4",0),
-       C.Prod (C.Name "-3", C.Const (U.uri_of_string "cic:/dummy-3",0),
-        C.Prod (C.Name "-2", C.Const (U.uri_of_string "cic:/dummy-2",0),
-         C.Prod (C.Name "-1", C.Const (U.uri_of_string "cic:/dummy-1",0),
-          t
-         )
-        )
-       )
-      )
-     )
-    )
-    )
-    )
-    )))))))
-    )) ^ "\n" ^ i
- in
-  if !fdebug = 0 then
-   raise (NotWellTyped ("\n" ^ List.fold_right debug_aux (t::env) ""))
-   (*print_endline ("\n" ^ List.fold_right debug_aux (t::env) "") ; flush stdout*)
-;;
-
-let rec split l n =
- match (l,n) with
-    (l,0) -> ([], l)
-  | (he::tl, n) -> let (l1,l2) = split tl (n-1) in (he::l1,l2)
-  | (_,_) -> raise ListTooShort
-;;
-
-exception CicCacheError;;
-
-let rec cooked_type_of_constant uri cookingsno =
- let module C = Cic in
- let module R = CicReduction in
- let module U = UriManager in
-  let cobj =
-   match CicCache.is_type_checked uri cookingsno with
-      CicCache.CheckedObj cobj -> cobj
-    | CicCache.UncheckedObj uobj ->
-       (* let's typecheck the uncooked obj *)
-       (match uobj with
-           C.Definition (_,te,ty,_) ->
-             let _ = type_of ty in
-              if not (R.are_convertible (type_of te) ty) then
-               raise (NotWellTyped ("Constant " ^ (U.string_of_uri uri)))
-         | C.Axiom (_,ty,_) ->
-           (* only to check that ty is well-typed *)
-           let _ = type_of ty in ()
-         | C.CurrentProof (_,_,te,ty) ->
-             let _ = type_of ty in
-              if not (R.are_convertible (type_of te) ty) then
-               raise (NotWellTyped ("CurrentProof" ^ (U.string_of_uri uri)))
-         | _ -> raise (WrongUriToConstant (U.string_of_uri uri))
-       ) ;
-       CicCache.set_type_checking_info uri ;
-       match CicCache.is_type_checked uri cookingsno with
-          CicCache.CheckedObj cobj -> cobj
-        | CicCache.UncheckedObj _ -> raise CicCacheError
-  in
-   match cobj with
-      C.Definition (_,_,ty,_) -> ty
-    | C.Axiom (_,ty,_) -> ty
-    | C.CurrentProof (_,_,_,ty) -> ty
-    | _ -> raise (WrongUriToConstant (U.string_of_uri uri))
-
-and type_of_variable uri =
- let module C = Cic in
- let module R = CicReduction in
-  (* 0 because a variable is never cooked => no partial cooking at one level *)
-  match CicCache.is_type_checked uri 0 with
-     CicCache.CheckedObj (C.Variable (_,ty)) -> ty
-   | CicCache.UncheckedObj (C.Variable (_,ty)) ->
-      (* only to check that ty is well-typed *)
-      let _ = type_of ty in
-       CicCache.set_type_checking_info uri ;
-       ty
-   |  _ -> raise (WrongUriToVariable (UriManager.string_of_uri uri))
-
-and does_not_occur n nn te =
- let module C = Cic in
-   (*CSC: whd sembra essere superflua perche' un caso in cui l'occorrenza *)
-   (*CSC: venga mangiata durante la whd sembra presentare problemi di *)
-   (*CSC: universi                                                    *)
-   match CicReduction.whd te with
-      C.Rel m when m > n && m <= nn -> false
-    | C.Rel _
-    | C.Var _
-    | C.Meta _
-    | C.Sort _
-    | C.Implicit -> true
-    | C.Cast (te,ty) -> does_not_occur n nn te && does_not_occur n nn ty
-    | C.Prod (_,so,dest) ->
-       does_not_occur n nn so && does_not_occur (n + 1) (nn + 1) dest
-    | C.Lambda (_,so,dest) ->
-       does_not_occur n nn so && does_not_occur (n + 1) (nn + 1) dest
-    | C.Appl l ->
-       List.fold_right (fun x i -> i && does_not_occur n nn x) l true
-    | C.Const _
-    | C.Abst _
-    | C.MutInd _
-    | C.MutConstruct _ -> true
-    | C.MutCase (_,_,_,out,te,pl) ->
-       does_not_occur n nn out && does_not_occur n nn te &&
-        List.fold_right (fun x i -> i && does_not_occur n nn x) pl true
-    | C.Fix (_,fl) ->
-       let len = List.length fl in
-        let n_plus_len = n + len in
-        let nn_plus_len = nn + len in
-         List.fold_right
-          (fun (_,_,ty,bo) i ->
-            i && does_not_occur n_plus_len nn_plus_len ty &&
-            does_not_occur n_plus_len nn_plus_len bo
-          ) fl true
-    | C.CoFix (_,fl) ->
-       let len = List.length fl in
-        let n_plus_len = n + len in
-        let nn_plus_len = nn + len in
-         List.fold_right
-          (fun (_,ty,bo) i ->
-            i && does_not_occur n_plus_len nn_plus_len ty &&
-            does_not_occur n_plus_len nn_plus_len bo
-          ) fl true
-
-(*CSC l'indice x dei tipi induttivi e' t.c. n < x <= nn *)
-(*CSC questa funzione e' simile alla are_all_occurrences_positive, ma fa *)
-(*CSC dei controlli leggermente diversi. Viene invocata solamente dalla  *)
-(*CSC strictly_positive                                                  *)
-(*CSC definizione (giusta???) tratta dalla mail di Hugo ;-)              *)
-and weakly_positive n nn uri te =
- let module C = Cic in
-  (*CSC mettere in cicSubstitution *)
-  let rec subst_inductive_type_with_dummy_rel =
-   function
-      C.MutInd (uri',_,0) when UriManager.eq uri' uri ->
-       C.Rel 0 (* dummy rel *)
-    | C.Appl ((C.MutInd (uri',_,0))::tl) when UriManager.eq uri' uri ->
-       C.Rel 0 (* dummy rel *)
-    | C.Cast (te,ty) -> subst_inductive_type_with_dummy_rel te
-    | C.Prod (name,so,ta) ->
-       C.Prod (name, subst_inductive_type_with_dummy_rel so,
-        subst_inductive_type_with_dummy_rel ta)
-    | C.Lambda (name,so,ta) ->
-       C.Lambda (name, subst_inductive_type_with_dummy_rel so,
-        subst_inductive_type_with_dummy_rel ta)
-    | C.Appl tl ->
-       C.Appl (List.map subst_inductive_type_with_dummy_rel tl)
-    | C.MutCase (uri,cookingsno,i,outtype,term,pl) ->
-       C.MutCase (uri,cookingsno,i,
-        subst_inductive_type_with_dummy_rel outtype,
-        subst_inductive_type_with_dummy_rel term,
-        List.map subst_inductive_type_with_dummy_rel pl)
-    | C.Fix (i,fl) ->
-       C.Fix (i,List.map (fun (name,i,ty,bo) -> (name,i,
-        subst_inductive_type_with_dummy_rel ty,
-        subst_inductive_type_with_dummy_rel bo)) fl)
-    | C.CoFix (i,fl) ->
-       C.CoFix (i,List.map (fun (name,ty,bo) -> (name,
-        subst_inductive_type_with_dummy_rel ty,
-        subst_inductive_type_with_dummy_rel bo)) fl)
-    | t -> t
-  in
-  match CicReduction.whd te with
-     C.Appl ((C.MutInd (uri',_,0))::tl) when UriManager.eq uri' uri -> true
-   | C.MutInd (uri',_,0) when UriManager.eq uri' uri -> true
-   | C.Prod (C.Anonimous,source,dest) ->
-      strictly_positive n nn (subst_inductive_type_with_dummy_rel source) &&
-       weakly_positive (n + 1) (nn + 1) uri dest
-   | C.Prod (name,source,dest) when does_not_occur 0 n dest ->
-      (* dummy abstraction, so we behave as in the anonimous case *)
-      strictly_positive n nn (subst_inductive_type_with_dummy_rel source) &&
-       weakly_positive (n + 1) (nn + 1) uri dest
-   | C.Prod (_,source,dest) ->
-      does_not_occur n nn (subst_inductive_type_with_dummy_rel source) &&
-       weakly_positive (n + 1) (nn + 1) uri dest
-   | _ -> raise (NotWellFormedTypeOfInductiveConstructor ("Guess where the error is ;-)"))
-
-(* instantiate_parameters ps (x1:T1)...(xn:Tn)C                             *)
-(* returns ((x_|ps|:T_|ps|)...(xn:Tn)C){ps_1 / x1 ; ... ; ps_|ps| / x_|ps|} *)
-and instantiate_parameters params c =
- let module C = Cic in
-  match (c,params) with
-     (c,[]) -> c
-   | (C.Prod (_,_,ta), he::tl) ->
-       instantiate_parameters tl
-        (CicSubstitution.subst he ta)
-   | (C.Cast (te,_), _) -> instantiate_parameters params te
-   | (t,l) -> raise Impossible
-
-and strictly_positive n nn te =
- let module C = Cic in
- let module U = UriManager in
-  match CicReduction.whd te with
-     C.Rel _ -> true
-   | C.Cast (te,ty) ->
-      (*CSC: bisogna controllare ty????*)
-      strictly_positive n nn te
-   | C.Prod (_,so,ta) ->
-      does_not_occur n nn so &&
-       strictly_positive (n+1) (nn+1) ta
-   | C.Appl ((C.Rel m)::tl) when m > n && m <= nn ->
-      List.fold_right (fun x i -> i && does_not_occur n nn x) tl true
-   | C.Appl ((C.MutInd (uri,_,i))::tl) -> 
-      let (ok,paramsno,cl) =
-       match CicCache.get_obj uri with
-           C.InductiveDefinition (tl,_,paramsno) ->
-            let (_,_,_,cl) = List.nth tl i in
-             (List.length tl = 1, paramsno, cl)
-         | _ -> raise(WrongUriToMutualInductiveDefinitions(U.string_of_uri uri))
-      in
-       let (params,arguments) = split tl paramsno in
-       let lifted_params = List.map (CicSubstitution.lift 1) params in
-       let cl' =
-        List.map (fun (_,te,_) -> instantiate_parameters lifted_params te) cl
-       in
-        ok &&
-         List.fold_right
-          (fun x i -> i && does_not_occur n nn x)
-          arguments true &&
-         (*CSC: MEGAPATCH3 (sara' quella giusta?)*)
-         List.fold_right
-          (fun x i ->
-            i &&
-             weakly_positive (n+1) (nn+1) uri x
-          ) cl' true
-   | C.MutInd (uri,_,i) ->
-      (match CicCache.get_obj uri with
-          C.InductiveDefinition (tl,_,_) ->
-           List.length tl = 1
-        | _ -> raise (WrongUriToMutualInductiveDefinitions(U.string_of_uri uri))
-      )
-   | t -> does_not_occur n nn t
-
-(*CSC l'indice x dei tipi induttivi e' t.c. n < x <= nn *)
-and are_all_occurrences_positive uri indparamsno i n nn te =
- let module C = Cic in
-  match CicReduction.whd te with
-     C.Appl ((C.Rel m)::tl) when m = i ->
-      (*CSC: riscrivere fermandosi a 0 *)
-      (* let's check if the inductive type is applied at least to *)
-      (* indparamsno parameters                                   *)
-      let last =
-       List.fold_left
-        (fun k x ->
-          if k = 0 then 0
-          else
-           match CicReduction.whd x with
-              C.Rel m when m = n - (indparamsno - k) -> k - 1
-            | _ -> raise (WrongRequiredArgument (UriManager.string_of_uri uri))
-        ) indparamsno tl
-      in
-       if last = 0 then
-        List.fold_right (fun x i -> i && does_not_occur n nn x) tl true
-       else
-        raise (WrongRequiredArgument (UriManager.string_of_uri uri))
-   | C.Rel m when m = i ->
-      if indparamsno = 0 then
-       true
-      else
-       raise (WrongRequiredArgument (UriManager.string_of_uri uri))
-   | C.Prod (C.Anonimous,source,dest) ->
-      strictly_positive n nn source &&
-       are_all_occurrences_positive uri indparamsno (i+1) (n + 1) (nn + 1) dest
-   | C.Prod (name,source,dest) when does_not_occur 0 n dest ->
-      (* dummy abstraction, so we behave as in the anonimous case *)
-      strictly_positive n nn source &&
-       are_all_occurrences_positive uri indparamsno (i+1) (n + 1) (nn + 1) dest
-   | C.Prod (_,source,dest) ->
-      does_not_occur n nn source &&
-       are_all_occurrences_positive uri indparamsno (i+1) (n + 1) (nn + 1) dest
-   | _ -> raise (NotWellFormedTypeOfInductiveConstructor (UriManager.string_of_uri uri))
-
-(*CSC: cambiare il nome, torna unit! *)
-and cooked_mutual_inductive_defs uri =
- let module U = UriManager in
-  function
-     Cic.InductiveDefinition (itl, _, indparamsno) ->
-      (* let's check if the arity of the inductive types are well *)
-      (* formed                                                   *)
-      List.iter (fun (_,_,x,_) -> let _ = type_of x in ()) itl ;
-
-      (* let's check if the types of the inductive constructors  *)
-      (* are well formed.                                        *)
-      (* In order not to use type_of_aux we put the types of the *)
-      (* mutual inductive types at the head of the types of the  *)
-      (* constructors using Prods                                *)
-      (*CSC: piccola??? inefficienza                             *)
-      let len = List.length itl in
-       let _ =
-        List.fold_right
-         (fun (_,_,_,cl) i ->
-           List.iter
-            (fun (name,te,r) -> 
-              let augmented_term =
-               List.fold_right
-                (fun (name,_,ty,_) i -> Cic.Prod (Cic.Name name, ty, i))
-                itl te
-              in
-               let _ = type_of augmented_term in
-                (* let's check also the positivity conditions *)
-                if not (are_all_occurrences_positive uri indparamsno i 0 len te)
-                then
-                 raise (NotPositiveOccurrences (U.string_of_uri uri))
-                else
-                 match !r with
-                    Some _ -> raise Impossible
-                  | None -> r := Some (recursive_args 0 len te)
-            ) cl ;
-           (i + 1)
-        ) itl 1
-       in
-        ()
-   | _ ->
-     raise (WrongUriToMutualInductiveDefinitions (U.string_of_uri uri))
-
-and cooked_type_of_mutual_inductive_defs uri cookingsno i =
- let module C = Cic in
- let module R = CicReduction in
- let module U = UriManager in
-  let cobj =
-   match CicCache.is_type_checked uri cookingsno with
-      CicCache.CheckedObj cobj -> cobj
-    | CicCache.UncheckedObj uobj ->
-       cooked_mutual_inductive_defs uri uobj ;
-       CicCache.set_type_checking_info uri ;
-       (match CicCache.is_type_checked uri cookingsno with
-          CicCache.CheckedObj cobj -> cobj
-        | CicCache.UncheckedObj _ -> raise CicCacheError
-       )
-  in
-   match cobj with
-      C.InductiveDefinition (dl,_,_) ->
-       let (_,_,arity,_) = List.nth dl i in
-        arity
-    | _ -> raise (WrongUriToMutualInductiveDefinitions (U.string_of_uri uri))
-
-and cooked_type_of_mutual_inductive_constr uri cookingsno i j =
- let module C = Cic in
- let module R = CicReduction in
- let module U = UriManager in
-  let cobj =
-   match CicCache.is_type_checked uri cookingsno with
-      CicCache.CheckedObj cobj -> cobj
-    | CicCache.UncheckedObj uobj ->
-       cooked_mutual_inductive_defs uri uobj ;
-       CicCache.set_type_checking_info uri ;
-       (match CicCache.is_type_checked uri cookingsno with
-          CicCache.CheckedObj cobj -> cobj
-        | CicCache.UncheckedObj _ -> raise CicCacheError
-       )
-  in
-   match cobj with
-      C.InductiveDefinition (dl,_,_) ->
-       let (_,_,_,cl) = List.nth dl i in
-        let (_,ty,_) = List.nth cl (j-1) in
-         ty
-    | _ -> raise (WrongUriToMutualInductiveDefinitions (U.string_of_uri uri))
-
-and recursive_args n nn te =
- let module C = Cic in
-  match CicReduction.whd te with
-     C.Rel _ -> []
-   | C.Var _
-   | C.Meta _
-   | C.Sort _
-   | C.Implicit
-   | C.Cast _ (*CSC ??? *) -> raise Impossible (* due to type-checking *)
-   | C.Prod (_,so,de) ->
-      (not (does_not_occur n nn so))::(recursive_args (n+1) (nn + 1) de)
-   | C.Lambda _ -> raise Impossible (* due to type-checking *)
-   | C.Appl _ -> []
-   | C.Const _
-   | C.Abst _ -> raise Impossible
-   | C.MutInd _
-   | C.MutConstruct _
-   | C.MutCase _
-   | C.Fix _
-   | C.CoFix _ -> raise Impossible (* due to type-checking *)
-
-and get_new_safes p c rl safes n nn x =
- let module C = Cic in
- let module U = UriManager in
- let module R = CicReduction in
-  match (R.whd c, R.whd p, rl) with
-     (C.Prod (_,_,ta1), C.Lambda (_,_,ta2), b::tl) ->
-       (* we are sure that the two sources are convertible because we *)
-       (* have just checked this. So let's go along ...               *)
-       let safes' =
-        List.map (fun x -> x + 1) safes
-       in
-        let safes'' =
-         if b then 1::safes' else safes'
-        in
-         get_new_safes ta2 ta1 tl safes'' (n+1) (nn+1) (x+1)
-   | (C.MutInd _, e, []) -> (e,safes,n,nn,x)
-   | (C.Appl _, e, []) -> (e,safes,n,nn,x)
-   | (_,_,_) -> raise Impossible
-
-and eat_prods n te =
- let module C = Cic in
- let module R = CicReduction in
-  match (n, R.whd te) with
-     (0, _) -> te
-   | (n, C.Prod (_,_,ta)) when n > 0 -> eat_prods (n - 1) ta
-   | (_, _) -> raise Impossible
-
-and eat_lambdas n te =
- let module C = Cic in
- let module R = CicReduction in
-  match (n, R.whd te) with
-     (0, _) -> (te, 0)
-   | (n, C.Lambda (_,_,ta)) when n > 0 ->
-      let (te, k) = eat_lambdas (n - 1) ta in
-       (te, k + 1)
-   | (_, _) -> raise Impossible
-
-(*CSC: Tutto quello che segue e' l'intuzione di luca ;-) *)
-and check_is_really_smaller_arg n nn kl x safes te =
- (*CSC: forse la whd si puo' fare solo quando serve veramente. *)
- (*CSC: cfr guarded_by_destructors                             *)
- let module C = Cic in
- let module U = UriManager in
- match CicReduction.whd te with
-     C.Rel m when List.mem m safes -> true
-   | C.Rel _ -> false
-   | C.Var _
-   | C.Meta _
-   | C.Sort _
-   | C.Implicit 
-   | C.Cast _
-(*   | C.Cast (te,ty) ->
-      check_is_really_smaller_arg n nn kl x safes te &&
-       check_is_really_smaller_arg n nn kl x safes ty*)
-(*   | C.Prod (_,so,ta) ->
-      check_is_really_smaller_arg n nn kl x safes so &&
-       check_is_really_smaller_arg (n+1) (nn+1) kl (x+1)
-        (List.map (fun x -> x + 1) safes) ta*)
-   | C.Prod _ -> raise Impossible
-   | C.Lambda (_,so,ta) ->
-      check_is_really_smaller_arg n nn kl x safes so &&
-       check_is_really_smaller_arg (n+1) (nn+1) kl (x+1)
-        (List.map (fun x -> x + 1) safes) ta
-   | C.Appl (he::_) ->
-      (*CSC: sulla coda ci vogliono dei controlli? secondo noi no, ma *)
-      (*CSC: solo perche' non abbiamo trovato controesempi            *)
-      check_is_really_smaller_arg n nn kl x safes he
-   | C.Appl [] -> raise Impossible
-   | C.Const _
-   | C.Abst _
-   | C.MutInd _ -> raise Impossible
-   | C.MutConstruct _ -> false
-   | C.MutCase (uri,_,i,outtype,term,pl) ->
-      (match term with
-          C.Rel m when List.mem m safes || m = x ->
-           let (isinductive,paramsno,cl) =
-            match CicCache.get_obj uri with
-               C.InductiveDefinition (tl,_,paramsno) ->
-                let (_,isinductive,_,cl) = List.nth tl i in
-                 let cl' =
-                  List.map (fun (id,ty,r) -> (id, eat_prods paramsno ty, r)) cl
-                 in
-                  (isinductive,paramsno,cl')
-             | _ ->
-               raise (WrongUriToMutualInductiveDefinitions(U.string_of_uri uri))
-           in
-            if not isinductive then
-              List.fold_right
-               (fun p i -> i && check_is_really_smaller_arg n nn kl x safes p)
-               pl true
-            else
-              List.fold_right
-               (fun (p,(_,c,rl)) i ->
-                 let rl' =
-                  match !rl with
-                     Some rl' ->
-                      let (_,rl'') = split rl' paramsno in
-                       rl''
-                   | None -> raise Impossible
-                 in
-                  let (e,safes',n',nn',x') =
-                   get_new_safes p c rl' safes n nn x
-                  in
-                   i &&
-                   check_is_really_smaller_arg n' nn' kl x' safes' e
-               ) (List.combine pl cl) true
-        | C.Appl ((C.Rel m)::tl) when List.mem m safes || m = x ->
-           let (isinductive,paramsno,cl) =
-            match CicCache.get_obj uri with
-               C.InductiveDefinition (tl,_,paramsno) ->
-                let (_,isinductive,_,cl) = List.nth tl i in
-                 let cl' =
-                  List.map (fun (id,ty,r) -> (id, eat_prods paramsno ty, r)) cl
-                 in
-                  (isinductive,paramsno,cl')
-             | _ ->
-               raise (WrongUriToMutualInductiveDefinitions(U.string_of_uri uri))
-           in
-            if not isinductive then
-              List.fold_right
-               (fun p i -> i && check_is_really_smaller_arg n nn kl x safes p)
-               pl true
-            else
-              (*CSC: supponiamo come prima che nessun controllo sia necessario*)
-              (*CSC: sugli argomenti di una applicazione                      *)
-              List.fold_right
-               (fun (p,(_,c,rl)) i ->
-                 let rl' =
-                  match !rl with
-                     Some rl' ->
-                      let (_,rl'') = split rl' paramsno in
-                       rl''
-                   | None -> raise Impossible
-                 in
-                  let (e, safes',n',nn',x') =
-                   get_new_safes p c rl' safes n nn x
-                  in
-                   i &&
-                   check_is_really_smaller_arg n' nn' kl x' safes' e
-               ) (List.combine pl cl) true
-        | _ ->
-          List.fold_right
-           (fun p i -> i && check_is_really_smaller_arg n nn kl x safes p)
-           pl true
-      )
-   | C.Fix (_, fl) ->
-      let len = List.length fl in
-       let n_plus_len = n + len
-       and nn_plus_len = nn + len
-       and x_plus_len = x + len
-       and safes' = List.map (fun x -> x + len) safes in
-        List.fold_right
-         (fun (_,_,ty,bo) i ->
-           i &&
-            check_is_really_smaller_arg n_plus_len nn_plus_len kl x_plus_len
-             safes' bo
-         ) fl true
-   | C.CoFix (_, fl) ->
-      let len = List.length fl in
-       let n_plus_len = n + len
-       and nn_plus_len = nn + len
-       and x_plus_len = x + len
-       and safes' = List.map (fun x -> x + len) safes in
-        List.fold_right
-         (fun (_,ty,bo) i ->
-           i &&
-            check_is_really_smaller_arg n_plus_len nn_plus_len kl x_plus_len
-             safes' bo
-         ) fl true
-
-and guarded_by_destructors n nn kl x safes =
- let module C = Cic in
- let module U = UriManager in
-  function
-     C.Rel m when m > n && m <= nn -> false
-   | C.Rel _
-   | C.Var _
-   | C.Meta _
-   | C.Sort _
-   | C.Implicit -> true
-   | C.Cast (te,ty) ->
-      guarded_by_destructors n nn kl x safes te &&
-       guarded_by_destructors n nn kl x safes ty
-   | C.Prod (_,so,ta) ->
-      guarded_by_destructors n nn kl x safes so &&
-       guarded_by_destructors (n+1) (nn+1) kl (x+1)
-        (List.map (fun x -> x + 1) safes) ta
-   | C.Lambda (_,so,ta) ->
-      guarded_by_destructors n nn kl x safes so &&
-       guarded_by_destructors (n+1) (nn+1) kl (x+1)
-        (List.map (fun x -> x + 1) safes) ta
-   | C.Appl ((C.Rel m)::tl) when m > n && m <= nn ->
-      let k = List.nth kl (m - n - 1) in
-       if not (List.length tl > k) then false
-       else
-        List.fold_right
-         (fun param i ->
-           i && guarded_by_destructors n nn kl x safes param
-         ) tl true &&
-         check_is_really_smaller_arg n nn kl x safes (List.nth tl k)
-   | C.Appl tl ->
-      List.fold_right (fun t i -> i && guarded_by_destructors n nn kl x safes t)
-       tl true
-   | C.Const _
-   | C.Abst _
-   | C.MutInd _
-   | C.MutConstruct _ -> true
-   | C.MutCase (uri,_,i,outtype,term,pl) ->
-      (match term with
-          C.Rel m when List.mem m safes || m = x ->
-           let (isinductive,paramsno,cl) =
-            match CicCache.get_obj uri with
-               C.InductiveDefinition (tl,_,paramsno) ->
-                let (_,isinductive,_,cl) = List.nth tl i in
-                 let cl' =
-                  List.map (fun (id,ty,r) -> (id, eat_prods paramsno ty, r)) cl
-                 in
-                  (isinductive,paramsno,cl')
-             | _ ->
-               raise (WrongUriToMutualInductiveDefinitions(U.string_of_uri uri))
-           in
-            if not isinductive then
-             guarded_by_destructors n nn kl x safes outtype &&
-              guarded_by_destructors n nn kl x safes term &&
-              (*CSC: manca ??? il controllo sul tipo di term? *)
-              List.fold_right
-               (fun p i -> i && guarded_by_destructors n nn kl x safes p)
-               pl true
-            else
-             guarded_by_destructors n nn kl x safes outtype &&
-              (*CSC: manca ??? il controllo sul tipo di term? *)
-              List.fold_right
-               (fun (p,(_,c,rl)) i ->
-                 let rl' =
-                  match !rl with
-                     Some rl' ->
-                      let (_,rl'') = split rl' paramsno in
-                       rl''
-                   | None -> raise Impossible
-                 in
-                  let (e,safes',n',nn',x') =
-                   get_new_safes p c rl' safes n nn x
-                  in
-                   i &&
-                   guarded_by_destructors n' nn' kl x' safes' e
-               ) (List.combine pl cl) true
-        | C.Appl ((C.Rel m)::tl) when List.mem m safes || m = x ->
-           let (isinductive,paramsno,cl) =
-            match CicCache.get_obj uri with
-               C.InductiveDefinition (tl,_,paramsno) ->
-                let (_,isinductive,_,cl) = List.nth tl i in
-                 let cl' =
-                  List.map (fun (id,ty,r) -> (id, eat_prods paramsno ty, r)) cl
-                 in
-                  (isinductive,paramsno,cl')
-             | _ ->
-               raise (WrongUriToMutualInductiveDefinitions(U.string_of_uri uri))
-           in
-            if not isinductive then
-             guarded_by_destructors n nn kl x safes outtype &&
-              guarded_by_destructors n nn kl x safes term &&
-              (*CSC: manca ??? il controllo sul tipo di term? *)
-              List.fold_right
-               (fun p i -> i && guarded_by_destructors n nn kl x safes p)
-               pl true
-            else
-             guarded_by_destructors n nn kl x safes outtype &&
-              (*CSC: manca ??? il controllo sul tipo di term? *)
-              List.fold_right
-               (fun t i -> i && guarded_by_destructors n nn kl x safes t)
-               tl true &&
-              List.fold_right
-               (fun (p,(_,c,rl)) i ->
-                 let rl' =
-                  match !rl with
-                     Some rl' ->
-                      let (_,rl'') = split rl' paramsno in
-                       rl''
-                   | None -> raise Impossible
-                 in
-                  let (e, safes',n',nn',x') =
-                   get_new_safes p c rl' safes n nn x
-                  in
-                   i &&
-                   guarded_by_destructors n' nn' kl x' safes' e
-               ) (List.combine pl cl) true
-        | _ ->
-          guarded_by_destructors n nn kl x safes outtype &&
-           guarded_by_destructors n nn kl x safes term &&
-           (*CSC: manca ??? il controllo sul tipo di term? *)
-           List.fold_right
-            (fun p i -> i && guarded_by_destructors n nn kl x safes p)
-            pl true
-      )
-   | C.Fix (_, fl) ->
-      let len = List.length fl in
-       let n_plus_len = n + len
-       and nn_plus_len = nn + len
-       and x_plus_len = x + len
-       and safes' = List.map (fun x -> x + len) safes in
-        List.fold_right
-         (fun (_,_,ty,bo) i ->
-           i && guarded_by_destructors n_plus_len nn_plus_len kl x_plus_len
-            safes' ty &&
-            guarded_by_destructors n_plus_len nn_plus_len kl x_plus_len
-             safes' bo
-         ) fl true
-   | C.CoFix (_, fl) ->
-      let len = List.length fl in
-       let n_plus_len = n + len
-       and nn_plus_len = nn + len
-       and x_plus_len = x + len
-       and safes' = List.map (fun x -> x + len) safes in
-        List.fold_right
-         (fun (_,ty,bo) i ->
-           i && guarded_by_destructors n_plus_len nn_plus_len kl x_plus_len
-            safes' ty &&
-            guarded_by_destructors n_plus_len nn_plus_len kl x_plus_len safes'
-             bo
-         ) fl true
-
-(*CSC h = 0 significa non ancora protetto *)
-and guarded_by_constructors n nn h =
- let module C = Cic in
-  function
-     C.Rel m when m > n && m <= nn -> h = 1
-   | C.Rel _
-   | C.Var _ 
-   | C.Meta _
-   | C.Sort _
-   | C.Implicit -> true (*CSC: ma alcuni sono impossibili!!!! vedi Prod *)
-   | C.Cast (te,ty) ->
-      guarded_by_constructors n nn h te &&
-       guarded_by_constructors n nn h ty
-   | C.Prod (_,so,de) ->
-      raise Impossible (* the term has just been type-checked *)
-   | C.Lambda (_,so,de) ->
-      does_not_occur n nn so &&
-       guarded_by_constructors (n + 1) (nn + 1) h de
-   | C.Appl ((C.Rel m)::tl) when m > n && m <= nn ->
-      h = 1 &&
-       List.fold_right (fun x i -> i && does_not_occur n nn x) tl true
-   | C.Appl ((C.MutConstruct (uri,cookingsno,i,j))::tl) ->
-      let (is_coinductive, rl) =
-       match CicCache.get_cooked_obj uri cookingsno with
-          C.InductiveDefinition (itl,_,_) ->
-           let (_,is_inductive,_,cl) = List.nth itl i in
-            let (_,cons,rrec_args) = List.nth cl (j - 1) in
-             (match !rrec_args with
-                 None -> raise Impossible
-               | Some rec_args -> (not is_inductive, rec_args)
-             )
-        | _ ->
-         raise (WrongUriToMutualInductiveDefinitions
-          (UriManager.string_of_uri uri))
-      in
-       is_coinductive &&
-       List.fold_right
-        (fun (x,r) i ->
-          i &&
-           if r then
-            guarded_by_constructors n nn 1 x
-           else
-            does_not_occur n nn x
-        ) (List.combine tl rl) true
-   | C.Appl l ->
-      List.fold_right (fun x i -> i && does_not_occur n nn x) l true
-   | C.Const _
-   | C.Abst _
-   | C.MutInd _ 
-   | C.MutConstruct _ -> true (*CSC: ma alcuni sono impossibili!!!! vedi Prod *)
-   | C.MutCase (_,_,_,out,te,pl) ->
-      let rec returns_a_coinductive =
-       function
-          (*CSC: per le regole di tipaggio, la chiamata ricorsiva verra' *)
-          (*CSC: effettata solo una volta, per mangiarsi l'astrazione    *)
-          (*CSC: non dummy                                               *)
-          C.Lambda (_,_,de) -> returns_a_coinductive de
-        | C.MutInd (uri,_,i) ->
-           (*CSC: definire una funzioncina per questo codice sempre replicato *)
-           (match CicCache.get_obj uri with
-               C.InductiveDefinition (itl,_,_) ->
-                let (_,is_inductive,_,_) = List.nth itl i in
-                 not is_inductive
-             | _ ->
-               raise (WrongUriToMutualInductiveDefinitions
-                (UriManager.string_of_uri uri))
-            )
-        (*CSC: bug nella prossima riga (manca la whd) *)
-        | C.Appl ((C.MutInd (uri,_,i))::_) ->
-           (match CicCache.get_obj uri with
-               C.InductiveDefinition (itl,_,_) ->
-                let (_,is_inductive,_,_) = List.nth itl i in
-                 not is_inductive
-             | _ ->
-               raise (WrongUriToMutualInductiveDefinitions
-                (UriManager.string_of_uri uri))
-            )
-        | _ -> false
-      in
-       does_not_occur n nn out &&
-        does_not_occur n nn te &&
-        if returns_a_coinductive out then
-         List.fold_right
-          (fun x i -> i && guarded_by_constructors n nn h x) pl true
-        else
-         List.fold_right (fun x i -> i && does_not_occur n nn x) pl true
-   | C.Fix (_,fl) ->
-      let len = List.length fl in
-       let n_plus_len = n + len
-       and nn_plus_len = nn + len in
-        List.fold_right
-         (fun (_,_,ty,bo) i ->
-           i && does_not_occur n_plus_len nn_plus_len ty &&
-            does_not_occur n_plus_len nn_plus_len bo
-         ) fl true
-   | C.CoFix (_,fl) ->
-      let len = List.length fl in
-       let n_plus_len = n + len
-       and nn_plus_len = nn + len in
-        List.fold_right
-         (fun (_,ty,bo) i ->
-           i && does_not_occur n_plus_len nn_plus_len ty &&
-            does_not_occur n_plus_len nn_plus_len bo
-         ) fl true
-
-and check_allowed_sort_elimination uri i need_dummy ind arity1 arity2 =
- let module C = Cic in
- let module U = UriManager in
-  match (CicReduction.whd arity1, CicReduction.whd arity2) with
-     (C.Prod (_,so1,de1), C.Prod (_,so2,de2))
-      when CicReduction.are_convertible so1 so2 ->
-       check_allowed_sort_elimination uri i need_dummy
-        (C.Appl [CicSubstitution.lift 1 ind ; C.Rel 1]) de1 de2
-   | (C.Sort C.Prop, C.Sort C.Prop) when need_dummy -> true
-   | (C.Sort C.Prop, C.Sort C.Set) when need_dummy ->
-       (match CicCache.get_obj uri with
-           C.InductiveDefinition (itl,_,_) ->
-            let (_,_,_,cl) = List.nth itl i in
-             (* is a singleton definition? *)
-             List.length cl = 1
-         | _ ->
-           raise (WrongUriToMutualInductiveDefinitions (U.string_of_uri uri))
-       )
-   | (C.Sort C.Set, C.Sort C.Prop) when need_dummy -> true
-   | (C.Sort C.Set, C.Sort C.Set) when need_dummy -> true
-   | (C.Sort C.Set, C.Sort C.Type) when need_dummy ->
-       (match CicCache.get_obj uri with
-           C.InductiveDefinition (itl,_,_) ->
-            let (_,_,_,cl) = List.nth itl i in
-             (* is a small inductive type? *)
-             (*CSC: ottimizzare calcolando staticamente *)
-             let rec is_small =
-              function
-                 C.Prod (_,so,de) ->
-                  let s = type_of so in
-                   (s = C.Sort C.Prop || s = C.Sort C.Set) &&
-                   is_small de
-               | _ -> true (*CSC: we trust the type-checker *)
-             in
-              List.fold_right (fun (_,x,_) i -> i && is_small x) cl true
-         | _ ->
-           raise (WrongUriToMutualInductiveDefinitions (U.string_of_uri uri))
-       )
-   | (C.Sort C.Type, C.Sort _) when need_dummy -> true
-   | (C.Sort C.Prop, C.Prod (_,so,ta)) when not need_dummy ->
-       let res = CicReduction.are_convertible so ind
-       in
-        res &&
-        (match CicReduction.whd ta with
-            C.Sort C.Prop -> true
-          | C.Sort C.Set ->
-             (match CicCache.get_obj uri with
-                 C.InductiveDefinition (itl,_,_) ->
-                  let (_,_,_,cl) = List.nth itl i in
-                   (* is a singleton definition? *)
-                   List.length cl = 1
-               | _ ->
-                 raise (WrongUriToMutualInductiveDefinitions
-                  (U.string_of_uri uri))
-             )
-          | _ -> false
-        )
-   | (C.Sort C.Set, C.Prod (_,so,ta)) when not need_dummy ->
-       let res = CicReduction.are_convertible so ind
-       in
-        res &&
-        (match CicReduction.whd ta with
-            C.Sort C.Prop
-          | C.Sort C.Set  -> true
-          | C.Sort C.Type ->
-             (match CicCache.get_obj uri with
-                 C.InductiveDefinition (itl,_,_) ->
-                  let (_,_,_,cl) = List.nth itl i in
-                   (* is a small inductive type? *)
-                   let rec is_small =
-                    function
-                       C.Prod (_,so,de) ->
-                        let s = type_of so in
-                         (s = C.Sort C.Prop || s = C.Sort C.Set) &&
-                         is_small de
-                     | _ -> true (*CSC: we trust the type-checker *)
-                   in
-                    List.fold_right (fun (_,x,_) i -> i && is_small x) cl true
-               | _ ->
-                 raise (WrongUriToMutualInductiveDefinitions
-                  (U.string_of_uri uri))
-             )
-          | _ -> raise Impossible
-        )
-   | (C.Sort C.Type, C.Prod (_,so,_)) when not need_dummy ->
-       CicReduction.are_convertible so ind
-   | (_,_) -> false
-  
-and type_of_branch argsno need_dummy outtype term constype =
- let module C = Cic in
- let module R = CicReduction in
-  match R.whd constype with
-     C.MutInd (_,_,_) ->
-      if need_dummy then
-       outtype
-      else
-       C.Appl [outtype ; term]
-   | C.Appl (C.MutInd (_,_,_)::tl) ->
-      let (_,arguments) = split tl argsno
-      in
-       if need_dummy && arguments = [] then
-        outtype
-       else
-        C.Appl (outtype::arguments@(if need_dummy then [] else [term]))
-   | C.Prod (name,so,de) ->
-      C.Prod (C.Name "pippo",so,type_of_branch argsno need_dummy 
-       (CicSubstitution.lift 1 outtype)
-       (C.Appl [CicSubstitution.lift 1 term ; C.Rel 1]) de)
-  | _ -> raise Impossible
-       
- 
-and type_of t =
- let rec type_of_aux env =
-  let module C = Cic in
-  let module R = CicReduction in
-  let module S = CicSubstitution in
-  let module U = UriManager in
-   function
-      C.Rel n -> S.lift n (List.nth env (n - 1))
-    | C.Var uri ->
-      incr fdebug ;
-      let ty = type_of_variable uri in
-       decr fdebug ;
-       ty
-    | C.Meta n -> raise NotImplemented
-    | C.Sort s -> C.Sort C.Type (*CSC manca la gestione degli universi!!! *)
-    | C.Implicit -> raise Impossible
-    | C.Cast (te,ty) ->
-       let _ = type_of ty in
-        if R.are_convertible (type_of_aux env te) ty then ty
-        else raise (NotWellTyped "Cast")
-    | C.Prod (_,s,t) ->
-       let sort1 = type_of_aux env s
-       and sort2 = type_of_aux (s::env) t in
-        sort_of_prod (sort1,sort2)
-   | C.Lambda (n,s,t) ->
-       let sort1 = type_of_aux env s
-       and type2 = type_of_aux (s::env) t in
-        let sort2 = type_of_aux (s::env) type2 in
-         (* only to check if the product is well-typed *)
-         let _ = sort_of_prod (sort1,sort2) in
-          C.Prod (n,s,type2)
-   | C.Appl (he::tl) when List.length tl > 0 ->
-      let hetype = type_of_aux env he
-      and tlbody_and_type = List.map (fun x -> (x, type_of_aux env x)) tl in
-       (try
-        eat_prods hetype tlbody_and_type
-       with _ -> debug (C.Appl (he::tl)) env ; C.Implicit)
-   | C.Appl _ -> raise (NotWellTyped "Appl: no arguments")
-   | C.Const (uri,cookingsno) ->
-      incr fdebug ;
-      let cty = cooked_type_of_constant uri cookingsno in
-       decr fdebug ;
-       cty
-   | C.Abst _ -> raise Impossible
-   | C.MutInd (uri,cookingsno,i) ->
-      incr fdebug ;
-      let cty = cooked_type_of_mutual_inductive_defs uri cookingsno i in
-       decr fdebug ;
-       cty
-   | C.MutConstruct (uri,cookingsno,i,j) ->
-      let cty = cooked_type_of_mutual_inductive_constr uri cookingsno i j
-      in
-       cty
-   | C.MutCase (uri,cookingsno,i,outtype,term,pl) ->
-      let outsort = type_of_aux env outtype in
-      let (need_dummy, k) =
-       let rec guess_args t =
-        match decast t with
-           C.Sort _ -> (true, 0)
-         | C.Prod (_, s, t) ->
-            let (b, n) = guess_args t in
-             if n = 0 then
-              (* last prod before sort *)
-              match CicReduction.whd s with
-                 (*CSC vedi nota delirante su cookingsno in cicReduction.ml *)
-                 C.MutInd (uri',_,i') when U.eq uri' uri && i' = i -> (false, 1)
-               | C.Appl ((C.MutInd (uri',_,i')) :: _)
-                  when U.eq uri' uri && i' = i -> (false, 1)
-               | _ -> (true, 1)
-             else
-              (b, n + 1)
-         | _ -> raise (NotWellTyped "MutCase: outtype ill-formed")
-       in
-        (*CSC whd non serve dopo type_of_aux ? *)
-        let (b, k) = guess_args outsort in
-         if not b then (b, k - 1) else (b, k)
-      in
-      let (parameters, arguments) =
-        match R.whd (type_of_aux env term) with
-           (*CSC manca il caso dei CAST *)
-           C.MutInd (uri',_,i') ->
-            (*CSC vedi nota delirante sui cookingsno in cicReduction.ml*)
-            if U.eq uri uri' && i = i' then ([],[])
-            else raise (NotWellTyped ("MutCase: the term is of type " ^
-             (U.string_of_uri uri') ^ "," ^ string_of_int i' ^
-             " instead of type " ^ (U.string_of_uri uri') ^ "," ^
-             string_of_int i))
-         | C.Appl (C.MutInd (uri',_,i') :: tl) ->
-            if U.eq uri uri' && i = i' then split tl (List.length tl - k)
-            else raise (NotWellTyped ("MutCase: the term is of type " ^
-             (U.string_of_uri uri') ^ "," ^ string_of_int i' ^
-             " instead of type " ^ (U.string_of_uri uri) ^ "," ^
-             string_of_int i))
-         | _ -> raise (NotWellTyped "MutCase: the term is not an inductive one")
-      in
-       (* let's control if the sort elimination is allowed: [(I q1 ... qr)|B] *)
-       let sort_of_ind_type =
-        if parameters = [] then
-         C.MutInd (uri,cookingsno,i)
-        else
-         C.Appl ((C.MutInd (uri,cookingsno,i))::parameters)
-       in
-        if not (check_allowed_sort_elimination uri i need_dummy
-         sort_of_ind_type (type_of_aux env sort_of_ind_type) outsort)
-        then
-         raise (NotWellTyped "MutCase: not allowed sort elimination") ;
-
-        (* let's check if the type of branches are right *)
-        let (cl,parsno) =
-         match CicCache.get_cooked_obj uri cookingsno with
-            C.InductiveDefinition (tl,_,parsno) ->
-             let (_,_,_,cl) = List.nth tl i in (cl,parsno)
-          | _ ->
-            raise (WrongUriToMutualInductiveDefinitions (U.string_of_uri uri))
-        in
-         let (_,branches_ok) =
-          List.fold_left
-           (fun (j,b) (p,(_,c,_)) ->
-             let cons =
-              if parameters = [] then
-               (C.MutConstruct (uri,cookingsno,i,j))
-              else
-               (C.Appl (C.MutConstruct (uri,cookingsno,i,j)::parameters))
-             in
-              (j + 1, b &&
-               R.are_convertible (type_of_aux env p)
-                (type_of_branch parsno need_dummy outtype cons
-                  (type_of_aux env cons))
-              )
-           ) (1,true) (List.combine pl cl)
-         in
-          if not branches_ok then
-           raise (NotWellTyped "MutCase: wrong type of a branch") ;
-
-          if not need_dummy then
-           C.Appl ((outtype::arguments)@[term])
-          else if arguments = [] then
-           outtype
-          else
-           C.Appl (outtype::arguments)
-   | C.Fix (i,fl) ->
-      let types_times_kl =
-       List.rev
-        (List.map (fun (_,k,ty,_) -> let _ = type_of_aux env ty in (ty,k)) fl)
-      in
-      let (types,kl) = List.split types_times_kl in
-       let len = List.length types in
-        List.iter
-         (fun (name,x,ty,bo) ->
-           if (R.are_convertible (type_of_aux (types @ env) bo)
-            (CicSubstitution.lift len ty))
-           then
-            begin
-             let (m, eaten) = eat_lambdas (x + 1) bo in
-              (*let's control the guarded by destructors conditions D{f,k,x,M}*)
-              if not (guarded_by_destructors eaten (len + eaten) kl 1 [] m) then
-               raise (NotWellTyped "Fix: not guarded by destructors")
-            end
-           else
-            raise (NotWellTyped "Fix: ill-typed bodies")
-         ) fl ;
-      
-        (*CSC: controlli mancanti solo su D{f,k,x,M} *)
-        let (_,_,ty,_) = List.nth fl i in
-        ty
-   | C.CoFix (i,fl) ->
-      let types =
-       List.rev (List.map (fun (_,ty,_) -> let _ = type_of_aux env ty in ty) fl)
-      in
-       let len = List.length types in
-        List.iter
-         (fun (_,ty,bo) ->
-           if (R.are_convertible (type_of_aux (types @ env) bo)
-            (CicSubstitution.lift len ty))
-           then
-            begin
-             (* let's control the guarded by constructors conditions C{f,M} *)
-             if not (guarded_by_constructors 0 len 0 bo) then
-              raise (NotWellTyped "CoFix: not guarded by constructors")
-            end
-           else
-            raise (NotWellTyped "CoFix: ill-typed bodies")
-         ) fl ;
-      
-        let (_,ty,_) = List.nth fl i in
-         ty
-
- and decast =
-  let module C = Cic in
-   function
-      C.Cast (t,_) -> t
-    | t -> t
-
- and sort_of_prod (t1, t2) =
-  let module C = Cic in
-   match (decast t1, decast t2) with
-      (C.Sort s1, C.Sort s2)
-        when (s2 = C.Prop or s2 = C.Set) -> (* different from Coq manual!!! *)
-         C.Sort s2
-    | (C.Sort s1, C.Sort s2) -> C.Sort C.Type (*CSC manca la gestione degli universi!!! *)
-    | (_,_) -> raise (NotWellTyped "Prod")
-
- and eat_prods hetype =
-  (*CSC: siamo sicuri che le are_convertible non lavorino con termini non *)
-  (*CSC: cucinati                                                         *)
-  function
-     [] -> hetype
-   | (hete, hety)::tl ->
-    (match (CicReduction.whd hetype) with
-        Cic.Prod (n,s,t) ->
-         if CicReduction.are_convertible s hety then
-          (CicReduction.fdebug := -1 ;
-          eat_prods (CicSubstitution.subst hete t) tl
-          )
-         else
-          (
-          CicReduction.fdebug := 0 ;
-          let _ = CicReduction.are_convertible s hety in
-          debug hete [hety ; s] ;
-          raise (NotWellTyped "Appl: wrong parameter-type")
-)
-      | _ -> raise (NotWellTyped "Appl: wrong Prod-type")
-    )
- in
-  type_of_aux [] t
-;;
-
-let typecheck uri =
- let module C = Cic in
- let module R = CicReduction in
- let module U = UriManager in
-  match CicCache.is_type_checked uri 0 with
-     CicCache.CheckedObj _ -> ()
-   | CicCache.UncheckedObj uobj ->
-      (* let's typecheck the uncooked object *)
-      (match uobj with
-          C.Definition (_,te,ty,_) ->
-           let _ = type_of ty in
-            if not (R.are_convertible (type_of te ) ty) then
-             raise (NotWellTyped ("Constant " ^ (U.string_of_uri uri)))
-        | C.Axiom (_,ty,_) ->
-          (* only to check that ty is well-typed *)
-          let _ = type_of ty in ()
-        | C.CurrentProof (_,_,te,ty) ->
-           (*CSC [] wrong *)
-           let _ = type_of ty in
-            debug (type_of te) [] ;
-            if not (R.are_convertible (type_of te) ty) then
-             raise (NotWellTyped ("CurrentProof" ^ (U.string_of_uri uri)))
-        | C.Variable (_,ty) ->
-           (* only to check that ty is well-typed *)
-           (*CSC [] wrong *)
-           let _ = type_of ty in ()
-        | C.InductiveDefinition _ ->
-           cooked_mutual_inductive_defs uri uobj
-      ) ;
-      CicCache.set_type_checking_info uri
-;;
diff --git a/helm/interface/cicTypeChecker.mli b/helm/interface/cicTypeChecker.mli
deleted file mode 100644
index 21f4ab91b..000000000
--- a/helm/interface/cicTypeChecker.mli
+++ /dev/null
@@ -1,9 +0,0 @@
-exception NotWellTyped of string
-exception WrongUriToConstant of string
-exception WrongUriToVariable of string
-exception WrongUriToMutualInductiveDefinitions of string
-exception ListTooShort
-exception NotPositiveOccurrences of string
-exception NotWellFormedTypeOfInductiveConstructor of string
-exception WrongRequiredArgument of string
-val typecheck : UriManager.uri -> unit
diff --git a/helm/interface/cicXPath.ml b/helm/interface/cicXPath.ml
deleted file mode 100644
index 2df970737..000000000
--- a/helm/interface/cicXPath.ml
+++ /dev/null
@@ -1,51 +0,0 @@
-(******************************************************************************)
-(*                                                                            *)
-(*                               PROJECT HELM                                 *)
-(*                                                                            *)
-(*                Claudio Sacerdoti Coen <sacerdot@cs.unibo.it>               *)
-(*                                 14/06/2000                                 *)
-(*                                                                            *)
-(*                                                                            *)
-(******************************************************************************)
-
-let get_annotation_from_term annterm =
- let module C = Cic in
-  match annterm with
-     C.ARel (_,ann,_,_)             -> ann
-   | C.AVar (_,ann,_)               -> ann
-   | C.AMeta (_,ann,_)              -> ann
-   | C.ASort (_,ann,_)              -> ann
-   | C.AImplicit (_,ann)            -> ann
-   | C.ACast (_,ann,_,_)            -> ann
-   | C.AProd (_,ann,_,_,_)          -> ann
-   | C.ALambda (_,ann,_,_,_)        -> ann
-   | C.AAppl (_,ann,_)              -> ann
-   | C.AConst (_,ann,_,_)           -> ann
-   | C.AAbst (_,ann,_)              -> ann
-   | C.AMutInd (_,ann,_,_,_)        -> ann
-   | C.AMutConstruct (_,ann,_,_,_,_)-> ann
-   | C.AMutCase (_,ann,_,_,_,_,_,_) -> ann
-   | C.AFix (_,ann,_,_)             -> ann
-   | C.ACoFix (_,ann,_,_)           -> ann
-;;
-
-let get_annotation_from_obj annobj =
- let module C = Cic in
-  match annobj with
-     C.ADefinition (_,ann,_,_,_,_)        -> ann
-   | C.AAxiom (_,ann,_,_,_)               -> ann
-   | C.AVariable (_,ann,_,_)              -> ann
-   | C.ACurrentProof (_,ann,_,_,_,_)      -> ann
-   | C.AInductiveDefinition (_,ann,_,_,_) -> ann
-;;
-
-exception IdUnknown of string;;
-
-let get_annotation (annobj,ids_to_targets) xpath =
- try
-  match Hashtbl.find ids_to_targets xpath with
-     Cic.Object annobj -> get_annotation_from_obj annobj
-   | Cic.Term annterm -> get_annotation_from_term annterm
- with
-  Not_found -> raise (IdUnknown xpath)
-;;
diff --git a/helm/interface/cicXPath.prima_degli_identificatori.ml b/helm/interface/cicXPath.prima_degli_identificatori.ml
deleted file mode 100644
index 8a69d1a24..000000000
--- a/helm/interface/cicXPath.prima_degli_identificatori.ml
+++ /dev/null
@@ -1,102 +0,0 @@
-(******************************************************************************)
-(*                                                                            *)
-(*                               PROJECT HELM                                 *)
-(*                                                                            *)
-(*                Claudio Sacerdoti Coen <sacerdot@cs.unibo.it>               *)
-(*                                 11/04/2000                                 *)
-(*                                                                            *)
-(*                                                                            *)
-(******************************************************************************)
-
-(* functions to parse an XPath to retrieve the annotation *)
-
-exception WrongXPath of string;;
-
-let rec get_annotation_of_inductiveFun f xpath =
- let module C = Cic in
-  match (xpath,f) with
-     1::tl,(_,_,ty,_) -> get_annotation_of_term ty tl
-   | 2::tl,(_,_,_,te) -> get_annotation_of_term te tl
-   | l,_ ->
-      raise (WrongXPath (List.fold_right (fun n i -> string_of_int n ^ i) l ""))
-
-and get_annotation_of_coinductiveFun f xpath =
- let module C = Cic in
-  match (xpath,f) with
-     1::tl,(_,ty,_) -> get_annotation_of_term ty tl
-   | 2::tl,(_,_,te) -> get_annotation_of_term te tl
-   | l,_ ->
-      raise (WrongXPath (List.fold_right (fun n i -> string_of_int n ^ i) l ""))
-
-and get_annotation_of_inductiveType ty xpath =
- let module C = Cic in
-  match (xpath,ty) with
-     1::tl,(_,_,arity,_) -> get_annotation_of_term arity tl
-   | n::tl,(_,_,_,cons) when n <= List.length cons + 1 ->
-      let (_,ty,_) = List.nth cons (n-2) in
-       get_annotation_of_term ty tl
-   | l,_ ->
-      raise (WrongXPath (List.fold_right (fun n i -> string_of_int n ^ i) l ""))
-
-and get_annotation_of_term term xpath =
- let module C = Cic in
-  match (xpath,term) with
-     [],C.ARel (_,ann,_,_) -> ann
-   | [],C.AVar (_,ann,_) -> ann
-   | [],C.AMeta (_,ann,_) -> ann
-   | [],C.ASort (_,ann,_) -> ann
-   | [],C.AImplicit (_,ann) -> ann
-   | [],C.ACast (_,ann,_,_) -> ann
-   | 1::tl,C.ACast (_,_,te,_) -> get_annotation_of_term te tl
-   | 2::tl,C.ACast (_,_,_,ty) -> get_annotation_of_term ty tl
-   | [],C.AProd (_,ann,_,_,_) -> ann
-   | 1::tl,C.AProd (_,_,_,so,_) -> get_annotation_of_term so tl
-   | 2::tl,C.AProd (_,_,_,_,ta) -> get_annotation_of_term ta tl
-   | [],C.ALambda (_,ann,_,_,_) -> ann
-   | 1::tl,C.ALambda (_,_,_,so,_) -> get_annotation_of_term so tl
-   | 2::tl,C.ALambda (_,_,_,_,ta) -> get_annotation_of_term ta tl
-   | [],C.AAppl (_,ann,_) -> ann
-   | n::tl,C.AAppl (_,_,l) when n <= List.length l ->
-      get_annotation_of_term (List.nth l (n-1)) tl
-   | [],C.AConst (_,ann,_,_) -> ann
-   | [],C.AAbst (_,ann,_) -> ann
-   | [],C.AMutInd (_,ann,_,_,_) -> ann
-   | [],C.AMutConstruct (_,ann,_,_,_,_) -> ann
-   | [],C.AMutCase (_,ann,_,_,_,_,_,_) -> ann
-   | 1::tl,C.AMutCase (_,_,_,_,_,outt,_,_) -> get_annotation_of_term outt tl
-   | 2::tl,C.AMutCase (_,_,_,_,_,_,te,_) -> get_annotation_of_term te tl
-   | n::tl,C.AMutCase (_,_,_,_,_,_,_,pl) when n <= List.length pl ->
-      get_annotation_of_term (List.nth pl (n-1)) tl
-   | [],C.AFix (_,ann,_,_) -> ann
-   | n::tl,C.AFix (_,_,_,fl) when n <= List.length fl ->
-      get_annotation_of_inductiveFun (List.nth fl (n-1)) tl
-   | [],C.ACoFix (_,ann,_,_) -> ann
-   | n::tl,C.ACoFix (_,_,_,fl) when n <= List.length fl ->
-      get_annotation_of_coinductiveFun (List.nth fl (n-1)) tl
-   | l,_ ->
-      raise (WrongXPath (List.fold_right (fun n i -> string_of_int n ^ i) l ""))
-;;
-
-let get_annotation (annobj,_) xpath =
- let module C = Cic in
-  match (xpath,annobj) with
-     [],C.ADefinition (_,ann,_,_,_,_) -> ann
-   | 1::tl,C.ADefinition (_,_,_,bo,_,_) -> get_annotation_of_term bo tl
-   | 2::tl,C.ADefinition (_,_,_,_,ty,_) -> get_annotation_of_term ty tl
-   | [],C.AAxiom (_,ann,_,_,_) -> ann
-   | 1::tl,C.AAxiom (_,_,_,ty,_) -> get_annotation_of_term ty tl
-   | [],C.AVariable (_,ann,_,_) -> ann
-   | 1::tl,C.AVariable (_,_,_,ty) -> get_annotation_of_term ty tl
-   | [],C.ACurrentProof (_,ann,_,_,_,_) -> ann
-   | n::tl,C.ACurrentProof (_,ann,_,conjs,_,_) when n <= List.length conjs ->
-      get_annotation_of_term (snd (List.nth conjs (n-1))) tl
-   | n::tl,C.ACurrentProof (_,ann,_,conjs,bo,_) when n = List.length conjs + 1 ->
-      get_annotation_of_term bo tl
-   | n::tl,C.ACurrentProof (_,ann,_,conjs,_,ty) when n = List.length conjs + 2 ->
-      get_annotation_of_term ty tl
-   | [],C.AInductiveDefinition (_,ann,_,_,_) -> ann
-   | n::tl,C.AInductiveDefinition (_,_,tys,_,_) when n <= List.length tys ->
-      get_annotation_of_inductiveType (List.nth tys (n-1)) tl
-   | l,_ ->
-      raise (WrongXPath (List.fold_right (fun n i -> string_of_int n ^ i) l ""))
-;;
diff --git a/helm/interface/configuration.ml b/helm/interface/configuration.ml
deleted file mode 100644
index 9a36cb37d..000000000
--- a/helm/interface/configuration.ml
+++ /dev/null
@@ -1,85 +0,0 @@
-(******************************************************************************)
-(*                                                                            *)
-(*                               PROJECT HELM                                 *)
-(*                                                                            *)
-(*                Claudio Sacerdoti Coen <sacerdot@cs.unibo.it>               *)
-(*                                 06/05/2000                                 *)
-(*                                                                            *)
-(* This is the parser that reads the configuration file of helm               *)
-(*                                                                            *)
-(******************************************************************************)
-
-(* this should be the only hard coded constant *)
-let filename =
- let prefix =
-  try
-   Sys.getenv "HELM_CONFIGURATION_PREFIX"
-  with
-   Not_found -> ""
- in
-  prefix ^ "/local/etc/helm/configuration.xml";;
-
-exception Warnings;;
-
-class warner =
-  object 
-    method warn w =
-      print_endline ("WARNING: " ^ w) ;
-      (raise Warnings : unit)
-  end
-;;
-
-let xml_document () =
- let module Y = Pxp_yacc in
-  try 
-   let config = {Y.default_config with Y.warner = new warner} in
-    Y.parse_document_entity config (Y.from_file filename) Y.default_spec
-  with
-   e ->
-     print_endline (Pxp_types.string_of_exn e) ;
-     raise e
-;;
-
-exception Impossible;;
-
-let vars = Hashtbl.create 14;;
-
-(* resolve <value-of> tags and returns the string values of the variable tags *)
-let rec resolve =
- let module D = Pxp_document in
-  function
-     [] -> ""
-   | he::tl when he#node_type = D.T_element "value-of" ->
-      (match he#attribute "var" with
-          Pxp_types.Value var -> Hashtbl.find vars var
-        | _ -> raise Impossible
-      ) ^ resolve tl
-   | he::tl when he#node_type = D.T_data ->
-      he#data ^ resolve tl
-   | _ -> raise Impossible
-;;
-
-(* we trust the xml file to be valid because of the validating xml parser *)
-let _ =
- List.iter
-  (function
-      n ->
-       match n#node_type with
-          Pxp_document.T_element var ->
-           Hashtbl.add vars var (resolve (n#sub_nodes))
-        | _ -> raise Impossible
-  )
-  ((xml_document ())#root#sub_nodes)
-;;
-
-let helm_dir      = Hashtbl.find vars "helm_dir";;
-let dtd_dir       = Hashtbl.find vars "dtd_dir";;
-let servers_file  = Hashtbl.find vars "servers_file";;
-let uris_dbm      = Hashtbl.find vars "uris_dbm";;
-let dest          = Hashtbl.find vars "dest";;
-let indexname     = Hashtbl.find vars "indexname";;
-let tmpdir        = Hashtbl.find vars "tmpdir";;
-let helm_dir      = Hashtbl.find vars "helm_dir";;
-let getter_url    = Hashtbl.find vars "getter_url";;
-
-let _ = Hashtbl.clear vars;;
diff --git a/helm/interface/deannotate.ml b/helm/interface/deannotate.ml
deleted file mode 100644
index 658554fff..000000000
--- a/helm/interface/deannotate.ml
+++ /dev/null
@@ -1,69 +0,0 @@
-let expect_possible_parameters = ref false;;
-
-exception NotExpectingPossibleParameters;;
-
-let rec deannotate_term =
- let module C = Cic in
-  function
-     C.ARel (_,_,n,_) -> C.Rel n
-   | C.AVar (_,_,uri) -> C.Var uri
-   | C.AMeta (_,_,n) -> C.Meta n
-   | C.ASort (_,_,s) -> C.Sort s
-   | C.AImplicit _ -> C.Implicit
-   | C.ACast (_,_,va,ty) -> C.Cast (deannotate_term va, deannotate_term ty)
-   | C.AProd (_,_,name,so,ta) ->
-      C.Prod (name, deannotate_term so, deannotate_term ta)
-   | C.ALambda (_,_,name,so,ta) ->
-      C.Lambda (name, deannotate_term so, deannotate_term ta)
-   | C.AAppl (_,_,l) -> C.Appl (List.map deannotate_term l)
-   | C.AConst (_,_,uri, cookingsno) -> C.Const (uri, cookingsno)
-   | C.AAbst (_,_,uri) -> C.Abst uri
-   | C.AMutInd (_,_,uri,cookingsno,i) -> C.MutInd (uri,cookingsno,i)
-   | C.AMutConstruct (_,_,uri,cookingsno,i,j) ->
-      C.MutConstruct (uri,cookingsno,i,j)
-   | C.AMutCase (_,_,uri,cookingsno,i,outtype,te,pl) ->
-      C.MutCase (uri,cookingsno,i,deannotate_term outtype,
-       deannotate_term te, List.map deannotate_term pl)
-   | C.AFix (_,_,funno,ifl) ->
-      C.Fix (funno, List.map deannotate_inductiveFun ifl)
-   | C.ACoFix (_,_,funno,ifl) ->
-      C.CoFix (funno, List.map deannotate_coinductiveFun ifl)
-
-and deannotate_inductiveFun (name,index,ty,bo) =
- (name, index, deannotate_term ty, deannotate_term bo)
-
-and deannotate_coinductiveFun (name,ty,bo) =
- (name, deannotate_term ty, deannotate_term bo)
-;;
-
-let deannotate_inductiveType (name, isinductive, arity, cons) =
- (name, isinductive, deannotate_term arity,
-  List.map (fun (id,ty,recs) -> (id,deannotate_term ty, recs)) cons)
-;;
-
-let deannotate_obj =
- let module C = Cic in
-  function
-     C.ADefinition (_, _, id, bo, ty, params) ->
-      (match params with
-          C.Possible params ->
-           if !expect_possible_parameters then
-            C.Definition (id, deannotate_term bo, deannotate_term ty, params)
-           else
-            raise NotExpectingPossibleParameters
-        | C.Actual params ->
-           C.Definition (id, deannotate_term bo, deannotate_term ty, params)
-      )
-   | C.AAxiom (_, _, id, ty, params) ->
-      C.Axiom (id, deannotate_term ty, params)
-   | C.AVariable (_, _, name, ty) ->
-      C.Variable (name, deannotate_term ty)
-   | C.ACurrentProof (_, _, name, conjs, bo, ty) ->
-      C.CurrentProof (
-       name, List.map (fun (id,con) -> (id,deannotate_term con)) conjs,
-       deannotate_term bo, deannotate_term ty
-      )
-   | C.AInductiveDefinition (_, _, tys, params, parno) ->
-      C.InductiveDefinition ( List.map deannotate_inductiveType tys,
-       params, parno)
-;;
diff --git a/helm/interface/experiment.ml b/helm/interface/experiment.ml
deleted file mode 100644
index 5c086bb19..000000000
--- a/helm/interface/experiment.ml
+++ /dev/null
@@ -1,84 +0,0 @@
-(******************************************************************************)
-(*                                                                            *)
-(*                               PROJECT HELM                                 *)
-(*                                                                            *)
-(*                Claudio Sacerdoti Coen <sacerdot@cs.unibo.it>               *)
-(*                                 24/01/2000                                 *)
-(*                                                                            *)
-(* This is a textual interface to the Coq-like pretty printer cicPp for cic   *)
-(* terms exported in xml. It uses directly the modules cicPp and cache and    *)
-(* indirectly all the other modules (cicParser, cicParser2, cicParser3,       *)
-(* getter). The syntax is  "experiment[.opt] filename1 ... filenamen" where   *)
-(* filenamei is the path-name of an xml file describing a cic term. On stdout *)
-(* are pretty-printed all the n terms                                         *)
-(*                                                                            *)
-(******************************************************************************)
-
-let pretty_print    = ref true;;
-let read_from_stdin = ref false;;
-let uris_in_input   = ref false;;
-
-let parse uri =
- if !pretty_print then
-  begin
-   print_endline ("^^^" ^ uri ^ "^^^") ;
-   print_string (CicPp.ppobj (CicCache.get_obj (UriManager.uri_of_string uri)));
-   print_endline ("\n$$$" ^ uri ^ "$$$\n")
-  end
- else
-  begin
-   print_string uri ;
-   let _ = CicCache.get_obj  (UriManager.uri_of_string uri) in
-    print_endline " OK!" ;
-    flush stdout
-  end
-;;
-
-let uri_of_filename fn =
- if !uris_in_input then fn
- else
-  let uri =
-   Str.replace_first (Str.regexp (Str.quote Configuration.helm_dir)) "cic:" fn
-  in
-   let uri' = Str.replace_first (Str.regexp "\.xml$") "" uri in
-    uri'
-;;
-
-let read_filenames_from_stdin () =
- let files = ref [] in
-  try
-   while true do
-    let l = Str.split (Str.regexp " ") (read_line ()) in
-     List.iter (fun x -> files := (uri_of_filename x) :: !files) l
-   done
-  with
-   End_of_file ->
-    files := List.rev !files ;
-    List.iter parse !files
-;;
-
-(* filenames are read from command line and converted to uris via *)
-(* uri_of_filenames; then the cic terms are load in cache via     *)
-(* CicCache.get_obj  and then pretty printed via CicPp.ppobj      *)
-
-let main() =
-  let files = ref [] in
-  Arg.parse
-   ["-nopp", Arg.Clear pretty_print, "Do not pretty print, parse only" ;
-    "-stdin", Arg.Set read_from_stdin, "Read from stdin" ;
-    "-uris", Arg.Set uris_in_input, "Read uris, not filenames" ;
-    "-update", Arg.Unit Getter.update, "Update the getter view of the world"]
-   (fun x -> files := (uri_of_filename x) :: !files)
-   "
-usage: experiment file ...
-
-List of options:";
-  if !read_from_stdin then read_filenames_from_stdin ()
-  else
-   begin
-    files := List.rev !files;
-    List.iter parse !files
-   end
-;;
-
-main();;
diff --git a/helm/interface/fix_params.ml b/helm/interface/fix_params.ml
deleted file mode 100644
index b4de9fa6f..000000000
--- a/helm/interface/fix_params.ml
+++ /dev/null
@@ -1,49 +0,0 @@
-let read_from_stdin = ref false;;
-
-let uri_of_filename fn =
- let uri =
-  Str.replace_first (Str.regexp (Str.quote Configuration.helm_dir)) "cic:" fn
- in
-  let uri' = Str.replace_first (Str.regexp "\.xml$") "" uri in
-   UriManager.uri_of_string uri'
-;;
-
-let main() =
-  Deannotate.expect_possible_parameters := true ;
-  let files = ref [] in
-  Arg.parse
-   ["-stdin", Arg.Set read_from_stdin, "Read from stdin"]
-   (fun x -> files := (x, uri_of_filename x) :: !files)
-      "
-usage: experiment file ...
-
-List of options:";
-  if !read_from_stdin then
-   begin
-    try
-     while true do
-      let l = Str.split (Str.regexp " ") (read_line ()) in
-       List.iter (fun x -> files := (x, uri_of_filename x) :: !files) l
-     done
-    with
-     End_of_file -> ()
-   end ;
-  files := List.rev !files;
-  Getter.update () ;
-  print_endline "ATTENTION: have you changed servers.txt so that you'll try \
-   to repair your own objs instead of others'?" ;
-  flush stdout ;
-  List.iter
-    (function (fn, uri) ->
-      print_string (UriManager.string_of_uri uri) ;
-      flush stdout ;
-      (try
-       CicFindParameters.fix_params uri (Some fn)
-      with
-        e -> print_newline () ; flush stdout ; raise e ) ;
-      print_endline " OK!" ;
-      flush stdout
-    ) !files
-;;
-
-main();;
diff --git a/helm/interface/getter.ml b/helm/interface/getter.ml
deleted file mode 100644
index 21c1901a1..000000000
--- a/helm/interface/getter.ml
+++ /dev/null
@@ -1,143 +0,0 @@
-(******************************************************************************)
-(*                                                                            *)
-(*                               PROJECT HELM                                 *)
-(*                                                                            *)
-(*                Claudio Sacerdoti Coen <sacerdot@cs.unibo.it>               *)
-(*                                 24/01/2000                                 *)
-(*                                                                            *)
-(******************************************************************************)
-
-exception ErrorGetting of string;;
-
-module OrderedStrings =
- struct
-  type t = string
-  let compare (s1 : t) (s2 : t) = compare s1 s2
- end
-;;
-
-module MapOfStrings = Map.Make(OrderedStrings);;
-
-let read_index url =
- let module C = Configuration in
-  if Sys.command ("wget -c -P " ^ C.tmpdir ^ " " ^ url ^ "/\"" ^
-   C.indexname ^ "\"") <> 0
-  then
-   raise (ErrorGetting url) ;
-  let tmpfilename = C.tmpdir ^ "/" ^ C.indexname in
-   let fd = open_in tmpfilename in
-   let uris = ref [] in
-    try
-     while true do
-      uris := (input_line fd) :: !uris
-     done ;
-     [] (* only to make the compiler happy *)
-    with
-     End_of_file ->
-      Sys.remove tmpfilename ;
-      !uris
-;;
-
-(* mk_urls_of_uris list_of_servers_base_urls *)
-let rec mk_urls_of_uris =
- function
-    [] -> MapOfStrings.empty
-  | he::tl ->
-     let map = mk_urls_of_uris tl in
-      let uris = read_index he in
-       let url_of_uri uri =
-        let url = uri  ^ ".xml" in
-         let url' = Str.replace_first (Str.regexp "cic:") he url in
-         let url'' = Str.replace_first (Str.regexp "theory:") he url' in
-          url''
-       in
-        List.fold_right
-         (fun uri m -> MapOfStrings.add uri (url_of_uri uri) m)
-         uris map
-;;
-
-let update () =
- let module C = Configuration in
-  let fd = open_in C.servers_file in
-  let servers = ref [] in
-   try
-    while true do
-     servers := (input_line fd) :: !servers
-    done
-   with
-    End_of_file ->
-     let urls_of_uris = mk_urls_of_uris (List.rev !servers) in
-      (try Sys.remove (C.uris_dbm ^ ".db") with _ -> ()) ;
-      let dbm =
-       Dbm.opendbm C.uris_dbm [Dbm.Dbm_wronly ; Dbm.Dbm_create] 0o660
-      in
-       MapOfStrings.iter (fun uri url -> Dbm.add dbm uri url) urls_of_uris ;
-       Dbm.close dbm
-;;
-
-(* url_of_uri : uri -> url *)
-let url_of_uri uri =
- let dbm = Dbm.opendbm Configuration.uris_dbm [Dbm.Dbm_rdonly] 0o660 in
-  let url = Dbm.find dbm (UriManager.string_of_uri uri) in
-   Dbm.close dbm ;
-   url
-;;
-
-let filedir_of_uri uri =
- let fn = UriManager.buri_of_uri uri in
-  let fn' = Str.replace_first (Str.regexp ".*:") Configuration.dest fn in
-   fn'
-;;
-
-let name_and_ext_of_uri uri =
- let str = UriManager.string_of_uri uri in
-  Str.replace_first (Str.regexp ".*/") "" str
-;;
-
-(* get_file : uri -> filename *)
-let get_file uri =
- let dir = filedir_of_uri uri in
-  let fn = dir ^ "/" ^ name_and_ext_of_uri uri ^ ".xml" in
-   if not (Sys.file_exists fn) then
-    begin
-     let url = url_of_uri uri in
-      (*CSC: use -q for quiet mode *)
-      if Sys.command ("wget -c -P " ^ dir ^ " \"" ^ url ^"\"") <> 0
-      then
-       raise (ErrorGetting url) ;
-    end ;
-   fn
-;;
-
-(* get : uri -> filename *)
-(* If uri is the URI of an annotation, the annotated object is processed *)
-let get uri =
- let module U = UriManager in
-  get_file
-   (U.uri_of_string
-    (Str.replace_first (Str.regexp "\.ann$") ""
-     (Str.replace_first (Str.regexp "\.types$") "" (U.string_of_uri uri))))
-;;
-
-(* get_ann : uri -> filename *)
-(* If uri is the URI of an annotation, the annotation file is processed *)
-let get_ann = get_file;;
-
-(* get_ann_file_name_and_uri : uri -> filename * annuri *)
-(* If given an URI, it returns the name of the corresponding *)
-(* annotation file and the annotation uri                    *)
-let get_ann_file_name_and_uri uri = 
- let module U = UriManager in
-  let uri = U.string_of_uri uri in
-   let annuri =
-    U.uri_of_string (
-     if Str.string_match (Str.regexp ".*\.ann$") uri 0 then
-      uri
-     else
-      uri ^ ".ann"
-    )
-   in
-    let dir = filedir_of_uri annuri in
-     let fn = dir ^ "/" ^ name_and_ext_of_uri annuri ^ ".xml" in
-      (fn, annuri)
-;;
diff --git a/helm/interface/getter.mli b/helm/interface/getter.mli
deleted file mode 100644
index c0e882c99..000000000
--- a/helm/interface/getter.mli
+++ /dev/null
@@ -1,25 +0,0 @@
-(******************************************************************************)
-(*                                                                            *)
-(*                               PROJECT HELM                                 *)
-(*                                                                            *)
-(*                Claudio Sacerdoti Coen <sacerdot@cs.unibo.it>               *)
-(*                                 24/01/2000                                 *)
-(*                                                                            *)
-(*                                                                            *)
-(******************************************************************************)
-
-(* get : uri -> filename *)
-(* If uri is the URI of an annotation, the annotated object is processed *)
-val get : UriManager.uri -> string
-
-(* get_ann : uri -> filename *)
-(* If uri is the URI of an annotation, the annotation file is processed *)
-val get_ann : UriManager.uri -> string
-
-(* get_ann_file_name_and_uri : uri -> filename * annuri *)
-(* If given an URI, it returns the name of the corresponding *)
-(* annotation file and the annotation uri                    *)
-val get_ann_file_name_and_uri : UriManager.uri -> string * UriManager.uri
-
-(* synchronize with the servers *)
-val update : unit -> unit
diff --git a/helm/interface/gmon.out b/helm/interface/gmon.out
deleted file mode 100644
index c48b8406f..000000000
Binary files a/helm/interface/gmon.out and /dev/null differ
diff --git a/helm/interface/http_getter/http_getter.pl b/helm/interface/http_getter/http_getter.pl
deleted file mode 100755
index 650a16a3b..000000000
--- a/helm/interface/http_getter/http_getter.pl
+++ /dev/null
@@ -1,278 +0,0 @@
-#!/usr/bin/perl
-
-# First of all, let's load HELM configuration
-use Env;
-my $HELM_CONFIGURATION_PREFIX = $ENV{"HELM_CONFIGURATION_PREFIX"};
-my $HELM_CONFIGURATION_PATH =
- $HELM_CONFIGURATION_PREFIX."/local/lib/helm/configuration.pl";
-# next require defines: $helm_dir, $html_link
-require $HELM_CONFIGURATION_PATH;
-
-
-
-use HTTP::Daemon;
-use HTTP::Status;
-use HTTP::Request;
-use LWP::UserAgent;
-use DB_File;
-
-my $cont = "";
-my $d = new HTTP::Daemon LocalPort => 8081;
-tie(%map, 'DB_File', 'urls_of_uris.db', O_RDONLY, 0664);
-print "Please contact me at: <URL:", $d->url, ">\n";
-print "helm_dir: $helm_dir\n";
-$SIG{CHLD} = "IGNORE"; # do not accumulate defunct processes
-while (my $c = $d->accept) {
- if (fork() == 0) {
-    while (my $r = $c->get_request) {
-        #CSC: mancano i controlli di sicurezza
-        
-        $cont = "";
-        my $cicuri = $r->url; 
-        $cicuri =~ s/^[^?]*\?url=(.*)/$1/;
-        print "*".$r->url."\n";
-        my $http_method = $r->method;
-        my $http_path = $r->url->path;
-        if ($http_method eq 'GET' and $http_path eq "/get") {
-            my $filename = $cicuri;
-            $filename =~ s/cic:(.*)/$1/;
-            $filename =~ s/theory:(.*)/$1/;
-            $filename = $helm_dir.$filename.".xml";
-            my $resolved = $map{$cicuri};
-            print "$cicuri ==> $resolved ($filename)\n";
-            if (stat($filename)) {
-               print "Using local copy\n";
-               open(FD, $filename);
-               while(<FD>) { $cont .= $_; }
-               close(FD);
-               my $res = new HTTP::Response;
-               $res->content($cont);
-               $c->send_response($res);
-            } else {
-               print "Downloading\n";
-               $ua = LWP::UserAgent->new;
-               $request = HTTP::Request->new(GET => "$resolved");
-               $response = $ua->request($request, \&callback);
-               
-               print "Storing file\n";
-               open(FD, $filename);
-               print FD $cont;
-               close(FD);
-
-               my $res = new HTTP::Response;
-               $res->content($cont);
-               $c->send_response($res);
-            }
-        } elsif ($http_method eq 'GET' and $http_path eq "/annotate") {
-            my $do_annotate = ($cicuri =~ /\.ann$/);
-            my $target_to_annotate = $cicuri;
-            $target_to_annotate =~ s/(.*)\.ann$/$1/ if $do_annotate;
-            my $filename = $cicuri;
-            $filename =~ s/cic:(.*)/$1/;
-            $filename =~ s/theory:(.*)/$1/;
-            my $filename_target = $helm_dir.$filename if $do_annotate;
-            $filename = $helm_dir.$filename.".xml";
-            $filename_target =~ s/(.*)\.ann$/$1.xml/ if $do_annotate;
-            my $resolved = $map{$cicuri};
-            my $resolved_target = $map{$target_to_annotate} if $do_annotate;
-            if ($do_annotate) {
-               print "($cicuri, $target_to_annotate) ==> ($resolved + $resolved_target) ($filename)\n";
-            } else {
-               print "$cicuri ==> $resolved ($filename)\n";
-            }
-
-            # Retrieves the annotation
-
-            if (stat($filename)) {
-               print "Using local copy for the annotation\n";
-               open(FD, $filename);
-               while(<FD>) { $cont .= $_; }
-               close(FD);
-            } else {
-               print "Downloading the annotation\n";
-               $ua = LWP::UserAgent->new;
-               $request = HTTP::Request->new(GET => "$resolved");
-               $response = $ua->request($request, \&callback);
-               
-               print "Storing file for the annotation\n";
-               open(FD, $filename);
-               print FD $cont;
-               close(FD);
-            }
-            my $annotation = $cont;
-
-            # Retrieves the target to annotate
-
-            $cont = "";
-            if ($do_annotate) {
-               if (stat($filename_target)) {
-                  print "Using local copy for the file to annotate\n";
-                  open(FD, $filename_target);
-                  while(<FD>) { $cont .= $_; }
-                  close(FD);
-               } else {
-                  print "Downloading the file to annotate\n";
-                  $ua = LWP::UserAgent->new;
-                  $request = HTTP::Request->new(GET => "$resolved_target");
-                  $response = $ua->request($request, \&callback);
-               
-                  print "Storing file for the file to annotate\n";
-                  open(FD, $filename_target);
-                  print FD $cont;
-                  close(FD);
-               }
-            }
-            my $target = $cont;
-
-            # Merging the annotation and the target
-
-            $target =~ s/<\?xml [^?]*\?>//sg;
-            $target =~ s/<!DOCTYPE [^>]*>//sg;
-            $annotation =~ s/<\?xml [^?]*\?>//sg;
-            $annotation =~ s/<!DOCTYPE [^>]*>//sg;
-            my $merged = <<EOT;
-<?xml version="1.0" encoding="UTF-8"?>
-<cicxml uri="$target_to_annotate">
-$target
-$annotation
-</cicxml>
-EOT
-
-            # Answering the client
-
-            my $res = new HTTP::Response;
-            $res->content($merged);
-            $c->send_response($res);
-        } elsif ($http_method eq 'GET' and $http_path eq "/getwithtypes") {
-            my $do_annotate = ($cicuri =~ /\.types$/);
-            my $target_to_annotate = $cicuri;
-            $target_to_annotate =~ s/(.*)\.types$/$1/ if $do_annotate;
-            my $filename = $cicuri;
-            $filename =~ s/cic:(.*)/$1/;
-            $filename =~ s/theory:(.*)/$1/;
-            my $filename_target = $helm_dir.$filename if $do_annotate;
-            $filename = $helm_dir.$filename.".xml";
-            $filename_target =~ s/(.*)\.types$/$1.xml/ if $do_annotate;
-            my $resolved = $map{$cicuri};
-            my $resolved_target = $map{$target_to_annotate} if $do_annotate;
-            if ($do_annotate) {
-               print "GETWITHTYPES!!\n";
-               print "($cicuri, $target_to_annotate) ==> ($resolved + $resolved_target) ($filename)\n";
-             } else {
-               print "$cicuri ==> $resolved ($filename)\n";
-            }
-
-            # Retrieves the annotation
-
-            if (stat($filename)) {
-               print "Using local copy for the types\n";
-               open(FD, $filename);
-               while(<FD>) { $cont .= $_; }
-               close(FD);
-            } else {
-               print "Downloading the types\n";
-               $ua = LWP::UserAgent->new;
-               $request = HTTP::Request->new(GET => "$resolved");
-               $response = $ua->request($request, \&callback);
-               
-               print "Storing file for the types\n";
-               open(FD, $filename);
-               print FD $cont;
-               close(FD);
-            }
-            my $annotation = $cont;
-
-            # Retrieves the target to annotate
-
-            $cont = "";
-            my $target;
-            if ($do_annotate) {
-               if (stat($filename_target)) {
-                  print "Using local copy for the file to type\n";
-                  open(FD, $filename_target);
-                  while(<FD>) { $cont .= $_; }
-                  close(FD);
-               } else {
-                  print "Downloading the file to type\n";
-                  $ua = LWP::UserAgent->new;
-                  $request = HTTP::Request->new(GET => "$resolved_target");
-                  $response = $ua->request($request, \&callback);
-               
-                  print "Storing file for the file to type\n";
-                  open(FD, $filename_target);
-                  print FD $cont;
-                  close(FD);
-               }
-               $target = $cont;
-            } else {
-               $target = $annotation;
-               $annotation = "";
-            }
-
-            # Merging the annotation and the target
-
-            $target =~ s/<\?xml [^?]*\?>//sg;
-            $target =~ s/<!DOCTYPE [^>]*>//sg;
-            $annotation =~ s/<\?xml [^?]*\?>//sg;
-            $annotation =~ s/<!DOCTYPE [^>]*>//sg;
-            my $merged = <<EOT;
-<?xml version="1.0" encoding="UTF-8"?>
-<cicxml uri="$target_to_annotate">
-$target
-<ALLTYPES>
-$annotation
-</ALLTYPES>
-</cicxml>
-EOT
-
-            # Answering the client
-
-            my $res = new HTTP::Response;
-            $res->content($merged);
-            $c->send_response($res);
-         } elsif ($http_method eq 'GET' and $http_path eq "/getdtd") {
-            my $filename = $cicuri;
-            $filename = $helm_dir."/dtd/".$filename;
-            print "DTD: $cicuri ==> ($filename)\n";
-            if (stat($filename)) {
-               print "Using local copy\n";
-               open(FD, $filename);
-               while(<FD>) { $cont .= $_; }
-               close(FD);
-               my $res = new HTTP::Response;
-               $res->content($cont);
-               $c->send_response($res);
-            } else {
-               die "Could not find DTD!";
-            }
-        } elsif ($http_method eq 'GET' and $http_path eq "/conf") {
-            my $quoted_html_link = $html_link;
-            $quoted_html_link =~ s/&/&amp;/g;
-            $quoted_html_link =~ s/</&lt;/g;
-            $quoted_html_link =~ s/>/&gt;/g;
-            $quoted_html_link =~ s/'/&apos;/g;
-            $quoted_html_link =~ s/"/&quot;/g;
-            print "Configuration requested, returned #$quoted_html_link#\n";
-	    $cont = "<?xml version=\"1.0\"?><html_link>$quoted_html_link</html_link>";
-            my $res = new HTTP::Response;
-            $res->content($cont);
-            $c->send_response($res);
-        } else {
-            print "INVALID REQUEST!!!!!\n";
-            $c->send_error(RC_FORBIDDEN)
-        }
-    }
-    $c->close;
-    undef($c);
-    print "\nCONNECTION CLOSED\n\n";
-    exit;
-  } # fork
-}
-
-#================================
-
-sub callback
-{
- my ($data) = @_;
- $cont .= $data;
-}
diff --git a/helm/interface/isterix b/helm/interface/isterix
deleted file mode 100755
index a1f696a3b..000000000
--- a/helm/interface/isterix
+++ /dev/null
@@ -1,12 +0,0 @@
-#! /bin/sh
-
-export PATH=$PATH:/opt/java/jdk118/bin/
-
-export CLASSPATH=.
-export CLASSPATH=$CLASSPATH:/home/lpadovan/helm/java/xalan_1_1/xalan.jar
-export CLASSPATH=$CLASSPATH:/home/lpadovan/helm/java/xalan_1_1/xerces.jar
-export CLASSPATH=$CLASSPATH:/home/lpadovan/helm/java/saxon-5.3.2/saxon.jar
-
-# Per (my)Coq 6.3.0
-export LD_LIBRARY_PATH=/home/lpadovan/helm/usr/lib/:$LD_LIBRARY_PATH
-export LD_LIBRARY_PATH=/usr/local/lib/gtkmathview:$LD_LIBRARY_PATH
diff --git a/helm/interface/javacore15005.txt b/helm/interface/javacore15005.txt
deleted file mode 100644
index 992096462..000000000
--- a/helm/interface/javacore15005.txt
+++ /dev/null
@@ -1,195 +0,0 @@
-SIGSEGV received at bfffeacc in /home/cadet/sacerdot/jdk118/lib/linux/native_threads/libjitc.so. Processing terminated
-java full version "JDK 1.1.8 IBM build l118-19991013 (JIT enabled: jitc)"
-args: /home/cadet/sacerdot/jdk118/bin/linux/native_threads/java xaland 12345 12346 examples/style/annotatedcont.xsl examples/style/annotatedpres.xsl examples/style/theory_content.xsl examples/style/theory_pres.xsl
-
-Operating Environment
----------------------
-Host		: cadet.
-OS Level	: 2.2.14-5.0smp.#1 SMP Tue Mar 7 21:01:40 EST 2000
-glibc Version	: 2.1.3
-No. of Procs	: 1
-Memory Info:
-        total:    used:    free:  shared: buffers:  cached:
-Mem:  64503808 55078912  9424896 36126720  1527808 18075648
-Swap: 133885952  7442432 126443520
-MemTotal:     62992 kB
-MemFree:       9204 kB
-MemShared:    35280 kB
-Buffers:       1492 kB
-Cached:       17652 kB
-BigTotal:         0 kB
-BigFree:          0 kB
-SwapTotal:   130748 kB
-SwapFree:    123480 kB
-
-Application Environment
------------------------
-Signal Handlers -
-	SIGQUIT		: ignored
-	SIGILL		: sysThreadIDump (libjava.so)
-	SIGABRT		: sysThreadIDump (libjava.so)
-	SIGFPE		: sysThreadIDump (libjava.so)
-	SIGBUS		: sysThreadIDump (libjava.so)
-	SIGSEGV		: sysThreadIDump (libjava.so)
-	SIGPIPE		: ignored
-	SIGUSR1		: doSuspendLoop (libjava.so)
-
-Environment Variables -
-	LESSOPEN=|/usr/bin/lesspipe.sh %s
-	SAL_DO_NOT_USE_INVERT50=true
-	HISTSIZE=1000
-	HOSTNAME=cadet
-	LOGNAME=sacerdot
-	VISUAL=/usr/bin/emacs
-	LD_LIBRARY_PATH=/home/cadet/sacerdot/jdk118/lib/linux/native_threads:/usr/local/lib/gtkmathview:/home/pauillac/coq3/sacerdot/rvplayer5.0
-	MAIL=/var/spool/mail/sacerdot
-	PAGER=less
-	CLASSPATH=.:/usr/share/java/bsf.jar:/usr/share/java/xalan.jar:/usr/share/java/xerces.jar:/home/cadet/sacerdot/jdk118/classes:/home/cadet/sacerdot/jdk118/lib/classes.jar:/home/cadet/sacerdot/jdk118/lib/rt.jar:/home/cadet/sacerdot/jdk118/lib/i18n.jar:/home/cadet/sacerdot/jdk118/lib/classes.zip
-	LESSCHARDEF=8bcccbcc18b95.33b.
-	ARCH=i586
-	PROMPT=cad: 
-	TERM=xterm
-	HOSTTYPE=i386
-	PATH=/home/cadet/sacerdot/jdk118/bin:/home/pauillac/coq3/sacerdot/bin/i586:/home/pauillac/coq3/sacerdot/bin:/usr/bin/X11:/usr/bin:/usr/local/bin:/usr/ucb:/usr/bin:/bin:/usr/sbin:/sbin:/usr/games:.
-	PRINTER=hp11rv
-	HOME=/home/pauillac/coq3/sacerdot
-	SHELL=/bin/sh
-	ELANLIB=/home/pauillac/coq3/sacerdot/elan-dist.3.00/elanlib
-	PILOTPORT=/dev/ttyS1
-	TEXINPUTS=:.:/home/pauillac/coq3/sacerdot/lib/latex/inputs:/usr/local/lib/tex/inputs3
-	USER=sacerdot
-	ENSCRIPT=-Php11rvl -2 -r -B -L66 -k -h
-	MANPATH=/usr/man/preformat:/usr/man:/usr/X11/man:/usr/local/man:/home/pauillac/coq3/sacerdot/man
-	LESS=-m -e -q -d
-	JAVA_HOME=/home/cadet/sacerdot/jdk118
-	DISPLAY=:0.0
-	MAKEFLAGS=
-	HOST=cadet
-	OSTYPE=Linux
-	NNTPSERVER=news-rocq.inria.fr
-	WINDOWID=54525966
-	SHLVL=4
-	MAKELEVEL=1
-	LS_COLORS=no=00:fi=00:di=01;34:ln=01;36:pi=40;33:so=01;35:bd=40;33;01:cd=40;33;01:or=01;05;37;41:mi=01;05;37;41:ex=01;32:*.cmd=01;32:*.exe=01;32:*.com=01;32:*.btm=01;32:*.bat=01;32:*.sh=01;32:*.csh=01;32:*.tar=01;31:*.tgz=01;31:*.arj=01;31:*.taz=01;31:*.lzh=01;31:*.zip=01;31:*.z=01;31:*.Z=01;31:*.gz=01;31:*.bz2=01;31:*.bz=01;31:*.tz=01;31:*.rpm=01;31:*.cpio=01;31:*.jpg=01;35:*.gif=01;35:*.bmp=01;35:*.xbm=01;35:*.xpm=01;35:*.png=01;35:*.tif=01;35:
-	EDITOR=/usr/bin/emacs
-	MFLAGS=
-	CVSROOT=/net/pauillac/constr/ARCHIVE
-
-
-Current Thread Details
-----------------------
-    "main" (TID:0x402e62d8, sys_thread_t:0x804abe0)
-    Native Thread State: ThreadID: 00000400 Reuse: 1 USER PRIMORDIAL RUNNING
-    Native Stack Data  : base: bffff47c pointer bffbf96c used(260880) free(-13072)
-	----- Monitors held -----
-	----- Native stack -----
-	
-	
-	
-	
-	
-	
-	
-	
-	??
-	??
-	??
-	
-	java_lang_Compiler_start
-	
-	__irem_trap6
-	------ Java stack ------        () prio=5 *current thread*
-	org.apache.xalan.xslt.XSLTEngineImpl.createStylesheetRoot(XSLTEngineImpl.java:715)
-	org.apache.xalan.xslt.XSLTEngineImpl.processStylesheet(Compiled Code)
-	org.apache.xalan.xslt.XSLTEngineImpl.processStylesheet(Compiled Code)
-	xaland.main(Compiled Code)
-----------------------------------------------------------------------
-
-
-Total Thread Count:	3
-Active Thread Count:	3
-JNI Thread Count:	0
-
-Full thread dump:
-    "Async Garbage Collector" (TID:0x402e6238, sys_thread_t:0x8091f50)
-    Native Thread State: ThreadID: 00000803 Reuse: 1 DAEMON  MONITOR WAIT
-    Native Stack Data  : base: bf5ffd84 pointer bf5ffb78 used(524) free(247284)
-	----- Monitors held -----
-	----- Native stack -----
-	sysMonitorWait
-	sysThreadSleep
-	threadSleep
-	SetOrigArgs
-	sysThread_shell
-	pthread_detach
-	__clone
-	------ Java stack ------        () prio=1
-----------------------------------------------------------------------
-
-    "Finalizer thread" (TID:0x402e6288, sys_thread_t:0x8091cd0)
-    Native Thread State: ThreadID: 00000402 Reuse: 1 DAEMON  MONITOR WAIT
-    Native Stack Data  : base: bf7ffd84 pointer bf7ffbec used(408) free(247400)
-	----- Monitors held -----
-	----- Native stack -----
-	sysMonitorWait - waiting on Finalize me queue lock
-	finalizeOnExit
-	sysThread_shell
-	pthread_detach
-	__clone
-	------ Java stack ------        () prio=1
-----------------------------------------------------------------------
-
-    "main" (TID:0x402e62d8, sys_thread_t:0x804abe0)
-    Native Thread State: ThreadID: 00000400 Reuse: 1 USER PRIMORDIAL RUNNING
-    Native Stack Data  : base: bffff47c pointer bffbf960 used(260892) free(-13084)
-	----- Monitors held -----
-	----- Native stack -----
-	
-	
-	
-	
-	
-	
-	
-	
-	??
-	??
-	??
-	
-	java_lang_Compiler_start
-	
-	__irem_trap6
-	------ Java stack ------        () prio=5 *current thread*
-	org.apache.xalan.xslt.XSLTEngineImpl.createStylesheetRoot(XSLTEngineImpl.java:715)
-	org.apache.xalan.xslt.XSLTEngineImpl.processStylesheet(Compiled Code)
-	org.apache.xalan.xslt.XSLTEngineImpl.processStylesheet(Compiled Code)
-	xaland.main(Compiled Code)
-----------------------------------------------------------------------
-
-
-System Monitor Status
----------------------
-    JIT monitor:     unowned.
-    JIT monitor:     unowned.
-    JIT monitor:     unowned.
-    JIT monitor:     unowned.
-    JIT monitor:     unowned.
-    Thread queue lock:     unowned.
-    Name and type hash table lock:     unowned.
-    String intern lock:     unowned.
-    JNI pinning lock:     unowned.
-    JNI global reference lock:     unowned.
-    Zip lock:     unowned.
-    BinClass lock:     unowned.
-    Class loading lock:     unowned.
-    Java stack lock:     unowned.
-    Code rewrite lock:     unowned.
-    Heap Lock:     unowned.
-    Has finalization queue lock:     unowned.
-    Finalize me queue lock:     unowned.
-    Integer lock access-lock:     unowned.
-    Monitor cache lock:     unowned.
-    Monitor registry:     unowned.
-
-Object Monitor Status
----------------------
diff --git a/helm/interface/javacore15021.txt b/helm/interface/javacore15021.txt
deleted file mode 100644
index bac0b8a76..000000000
--- a/helm/interface/javacore15021.txt
+++ /dev/null
@@ -1,195 +0,0 @@
-SIGSEGV received at bfffeacc in /home/cadet/sacerdot/jdk118/lib/linux/native_threads/libjitc.so. Processing terminated
-java full version "JDK 1.1.8 IBM build l118-19991013 (JIT enabled: jitc)"
-args: /home/cadet/sacerdot/jdk118/bin/linux/native_threads/java xaland 12345 12346 examples/style/annotatedcont.xsl examples/style/annotatedpres.xsl examples/style/theory_content.xsl examples/style/theory_pres.xsl
-
-Operating Environment
----------------------
-Host		: cadet.
-OS Level	: 2.2.14-5.0smp.#1 SMP Tue Mar 7 21:01:40 EST 2000
-glibc Version	: 2.1.3
-No. of Procs	: 1
-Memory Info:
-        total:    used:    free:  shared: buffers:  cached:
-Mem:  64503808 55672832  8830976 36130816  1536000 18612224
-Swap: 133885952  7442432 126443520
-MemTotal:     62992 kB
-MemFree:       8624 kB
-MemShared:    35284 kB
-Buffers:       1500 kB
-Cached:       18176 kB
-BigTotal:         0 kB
-BigFree:          0 kB
-SwapTotal:   130748 kB
-SwapFree:    123480 kB
-
-Application Environment
------------------------
-Signal Handlers -
-	SIGQUIT		: ignored
-	SIGILL		: sysThreadIDump (libjava.so)
-	SIGABRT		: sysThreadIDump (libjava.so)
-	SIGFPE		: sysThreadIDump (libjava.so)
-	SIGBUS		: sysThreadIDump (libjava.so)
-	SIGSEGV		: sysThreadIDump (libjava.so)
-	SIGPIPE		: ignored
-	SIGUSR1		: doSuspendLoop (libjava.so)
-
-Environment Variables -
-	LESSOPEN=|/usr/bin/lesspipe.sh %s
-	SAL_DO_NOT_USE_INVERT50=true
-	HISTSIZE=1000
-	HOSTNAME=cadet
-	LOGNAME=sacerdot
-	VISUAL=/usr/bin/emacs
-	LD_LIBRARY_PATH=/home/cadet/sacerdot/jdk118/lib/linux/native_threads:/usr/local/lib/gtkmathview:/home/pauillac/coq3/sacerdot/rvplayer5.0
-	MAIL=/var/spool/mail/sacerdot
-	PAGER=less
-	CLASSPATH=.:/usr/share/java/bsf.jar:/usr/share/java/xalan.jar:/usr/share/java/xerces.jar:/home/cadet/sacerdot/jdk118/classes:/home/cadet/sacerdot/jdk118/lib/classes.jar:/home/cadet/sacerdot/jdk118/lib/rt.jar:/home/cadet/sacerdot/jdk118/lib/i18n.jar:/home/cadet/sacerdot/jdk118/lib/classes.zip
-	LESSCHARDEF=8bcccbcc18b95.33b.
-	ARCH=i586
-	PROMPT=cad: 
-	TERM=xterm
-	HOSTTYPE=i386
-	PATH=/home/cadet/sacerdot/jdk118/bin:/home/pauillac/coq3/sacerdot/bin/i586:/home/pauillac/coq3/sacerdot/bin:/usr/bin/X11:/usr/bin:/usr/local/bin:/usr/ucb:/usr/bin:/bin:/usr/sbin:/sbin:/usr/games:.
-	PRINTER=hp11rv
-	HOME=/home/pauillac/coq3/sacerdot
-	SHELL=/bin/sh
-	ELANLIB=/home/pauillac/coq3/sacerdot/elan-dist.3.00/elanlib
-	PILOTPORT=/dev/ttyS1
-	TEXINPUTS=:.:/home/pauillac/coq3/sacerdot/lib/latex/inputs:/usr/local/lib/tex/inputs3
-	USER=sacerdot
-	ENSCRIPT=-Php11rvl -2 -r -B -L66 -k -h
-	MANPATH=/usr/man/preformat:/usr/man:/usr/X11/man:/usr/local/man:/home/pauillac/coq3/sacerdot/man
-	LESS=-m -e -q -d
-	JAVA_HOME=/home/cadet/sacerdot/jdk118
-	DISPLAY=:0.0
-	MAKEFLAGS=
-	HOST=cadet
-	OSTYPE=Linux
-	NNTPSERVER=news-rocq.inria.fr
-	WINDOWID=54525966
-	SHLVL=4
-	MAKELEVEL=1
-	LS_COLORS=no=00:fi=00:di=01;34:ln=01;36:pi=40;33:so=01;35:bd=40;33;01:cd=40;33;01:or=01;05;37;41:mi=01;05;37;41:ex=01;32:*.cmd=01;32:*.exe=01;32:*.com=01;32:*.btm=01;32:*.bat=01;32:*.sh=01;32:*.csh=01;32:*.tar=01;31:*.tgz=01;31:*.arj=01;31:*.taz=01;31:*.lzh=01;31:*.zip=01;31:*.z=01;31:*.Z=01;31:*.gz=01;31:*.bz2=01;31:*.bz=01;31:*.tz=01;31:*.rpm=01;31:*.cpio=01;31:*.jpg=01;35:*.gif=01;35:*.bmp=01;35:*.xbm=01;35:*.xpm=01;35:*.png=01;35:*.tif=01;35:
-	EDITOR=/usr/bin/emacs
-	MFLAGS=
-	CVSROOT=/net/pauillac/constr/ARCHIVE
-
-
-Current Thread Details
-----------------------
-    "main" (TID:0x402e62d8, sys_thread_t:0x804abe0)
-    Native Thread State: ThreadID: 00000400 Reuse: 1 USER PRIMORDIAL RUNNING
-    Native Stack Data  : base: bffff47c pointer bffbf96c used(260880) free(-13072)
-	----- Monitors held -----
-	----- Native stack -----
-	
-	
-	
-	
-	
-	
-	
-	
-	??
-	??
-	??
-	
-	java_lang_Compiler_start
-	
-	__irem_trap6
-	------ Java stack ------        () prio=5 *current thread*
-	org.apache.xalan.xslt.XSLTEngineImpl.createStylesheetRoot(XSLTEngineImpl.java:715)
-	org.apache.xalan.xslt.XSLTEngineImpl.processStylesheet(Compiled Code)
-	org.apache.xalan.xslt.XSLTEngineImpl.processStylesheet(Compiled Code)
-	xaland.main(Compiled Code)
-----------------------------------------------------------------------
-
-
-Total Thread Count:	3
-Active Thread Count:	3
-JNI Thread Count:	0
-
-Full thread dump:
-    "Async Garbage Collector" (TID:0x402e6238, sys_thread_t:0x8091f50)
-    Native Thread State: ThreadID: 00000803 Reuse: 1 DAEMON  MONITOR WAIT
-    Native Stack Data  : base: bf5ffd84 pointer bf5ffb78 used(524) free(247284)
-	----- Monitors held -----
-	----- Native stack -----
-	sysMonitorWait
-	sysThreadSleep
-	threadSleep
-	SetOrigArgs
-	sysThread_shell
-	pthread_detach
-	__clone
-	------ Java stack ------        () prio=1
-----------------------------------------------------------------------
-
-    "Finalizer thread" (TID:0x402e6288, sys_thread_t:0x8091cd0)
-    Native Thread State: ThreadID: 00000402 Reuse: 1 DAEMON  MONITOR WAIT
-    Native Stack Data  : base: bf7ffd84 pointer bf7ffbec used(408) free(247400)
-	----- Monitors held -----
-	----- Native stack -----
-	sysMonitorWait - waiting on Finalize me queue lock
-	finalizeOnExit
-	sysThread_shell
-	pthread_detach
-	__clone
-	------ Java stack ------        () prio=1
-----------------------------------------------------------------------
-
-    "main" (TID:0x402e62d8, sys_thread_t:0x804abe0)
-    Native Thread State: ThreadID: 00000400 Reuse: 1 USER PRIMORDIAL RUNNING
-    Native Stack Data  : base: bffff47c pointer bffbf960 used(260892) free(-13084)
-	----- Monitors held -----
-	----- Native stack -----
-	
-	
-	
-	
-	
-	
-	
-	
-	??
-	??
-	??
-	
-	java_lang_Compiler_start
-	
-	__irem_trap6
-	------ Java stack ------        () prio=5 *current thread*
-	org.apache.xalan.xslt.XSLTEngineImpl.createStylesheetRoot(XSLTEngineImpl.java:715)
-	org.apache.xalan.xslt.XSLTEngineImpl.processStylesheet(Compiled Code)
-	org.apache.xalan.xslt.XSLTEngineImpl.processStylesheet(Compiled Code)
-	xaland.main(Compiled Code)
-----------------------------------------------------------------------
-
-
-System Monitor Status
----------------------
-    JIT monitor:     unowned.
-    JIT monitor:     unowned.
-    JIT monitor:     unowned.
-    JIT monitor:     unowned.
-    JIT monitor:     unowned.
-    Thread queue lock:     unowned.
-    Name and type hash table lock:     unowned.
-    String intern lock:     unowned.
-    JNI pinning lock:     unowned.
-    JNI global reference lock:     unowned.
-    Zip lock:     unowned.
-    BinClass lock:     unowned.
-    Class loading lock:     unowned.
-    Java stack lock:     unowned.
-    Code rewrite lock:     unowned.
-    Heap Lock:     unowned.
-    Has finalization queue lock:     unowned.
-    Finalize me queue lock:     unowned.
-    Integer lock access-lock:     unowned.
-    Monitor cache lock:     unowned.
-    Monitor registry:     unowned.
-
-Object Monitor Status
----------------------
diff --git a/helm/interface/latinize.pl b/helm/interface/latinize.pl
deleted file mode 100755
index 7fa678736..000000000
--- a/helm/interface/latinize.pl
+++ /dev/null
@@ -1,10 +0,0 @@
-#!/usr/bin/perl
-
-while(<STDIN>)
-{
-  s/&#8594;/->/g;
-  s/&#8658;/=>/g;
-  s/&#955;/\\/g;
-  s/&#928;/||/g;
-  print;
-}
diff --git a/helm/interface/mkindex.sh b/helm/interface/mkindex.sh
deleted file mode 100755
index b47864fae..000000000
--- a/helm/interface/mkindex.sh
+++ /dev/null
@@ -1,3 +0,0 @@
-#!/bin/bash
-
-echo `find . -name "*.xml"` | /really_very_local/helm/PARSER/coq_like_pretty_printer/uris_of_filenames.pl > index.txt
diff --git a/helm/interface/mml.dtd b/helm/interface/mml.dtd
deleted file mode 100644
index 10ce5cb5d..000000000
--- a/helm/interface/mml.dtd
+++ /dev/null
@@ -1,55 +0,0 @@
-<?xml encoding="ISO-8859-1"?>
-
-<!-- CSC: mio DTD semplificatissimo per la parte presentation di MML -->
-
-<!-- I seguenti presentation elements sono stati tralasciati ;-)
-mspace
-ms
-<mchar>
-<ms>
-mfrac
-msqrt
-mroot
-mstyle
-merror
-mpadded
-mphantom
-msub
-msup
-msubsup
-munder
-mover
-munderover
-mmultiscripts
-mtable
-mtr
-mtd
-maligngroup
-malignmark
-maction
--->
-
-<!-- Dei seguenti elementi, invece, vengono tralasciati quasi tutti gli
-     attributi
-&ApplyFunction;
--->
-
-<!ENTITY % Presentation '(mi|mo|mn|mtext|mrow|mfenced)*'>
-
-<!ELEMENT math %Presentation;>
-
-<!ELEMENT mi (#PCDATA)>
-
-<!ELEMENT mo (#PCDATA)>
-
-<!ELEMENT mn (#PCDATA)>
-
-<!ELEMENT mtext (#PCDATA)>
-
-<!ELEMENT mrow %Presentation;>
-
-<!ELEMENT mfenced %Presentation;>
-<!ATTLIST mfenced
-          open       CDATA #IMPLIED
-          close      CDATA #IMPLIED
-          separators CDATA #IMPLIED>
diff --git a/helm/interface/mml.ml b/helm/interface/mml.ml
deleted file mode 100644
index 88c281350..000000000
--- a/helm/interface/mml.ml
+++ /dev/null
@@ -1,11 +0,0 @@
-type expr =
-   Null
- | Mi of string
- | Mo of string
- | Mn of string
- | Mtext of string
- | Mrow of expr list
- | Mfenced of string * string * string * expr list (* open, close, separators *)
-type fragment =
- Math of expr list
-;;
diff --git a/helm/interface/mmlinterface.ml b/helm/interface/mmlinterface.ml
deleted file mode 100755
index d364ffe4b..000000000
--- a/helm/interface/mmlinterface.ml
+++ /dev/null
@@ -1,653 +0,0 @@
-(******************************************************************************)
-(*                                                                            *)
-(*                               PROJECT HELM                                 *)
-(*                                                                            *)
-(*                Claudio Sacerdoti Coen <sacerdot@cs.unibo.it>               *)
-(*                                 24/01/2000                                 *)
-(*                                                                            *)
-(* This is a simple gtk interface to the Coq-like pretty printer cicPp for    *)
-(* cic terms exported in xml. It uses directly the modules cicPp and          *)
-(* cicCcache and indirectly all the other modules (cicParser, cicParser2,     *)
-(* cicParser3, getter).                                                       *)
-(* The syntax is  "gtkInterface[.opt] filename1 ... filenamen" where          *)
-(* filenamei is the path-name of an xml file describing a cic term.           *)
-(* The terms are loaded in cache and then pretty-printed one at a time and    *)
-(* only once, when the user wants to look at it: if the user wants to look at *)
-(* a term again, then the pretty-printed term is showed again, but not        *)
-(* recomputed                                                                 *)
-(*                                                                            *)
-(******************************************************************************)
-
-(* DEFINITION OF THE URI TREE AND USEFUL FUNCTIONS ON IT *)
-
-type item =
-   Dir of string * item list ref
- | File of string * UriManager.uri
-;;
-
-let uritree = ref []
-let theoryuritree = ref []
-
-let get_name =
- function
-    Dir (name,_) -> name
-  | File (name,_) -> name
-;;
-
-let get_uri =
- function
-    Dir _ -> None
-  | File (_,uri) -> Some uri
-;;
-
-(* STUFF TO BUILD THE URI TREE *)
-
-exception EmptyUri
-exception DuplicatedUri
-exception ConflictingUris
-
-let insert_in_uri_tree uri =
- let rec aux l =
-  function
-     [name] ->
-      (try
-        let _ = List.find (fun item -> name = get_name item) !l in
-         raise DuplicatedUri
-       with
-        Not_found -> l := (File (name,uri))::!l
-      )
-   | name::tl ->
-      (try
-        match List.find (fun item -> name = get_name item) !l with
-           Dir (_,children) -> aux children tl
-         | File _ -> raise ConflictingUris
-       with
-        Not_found ->
-         let children = ref [] in
-          l := (Dir (name,children))::!l ;
-          aux children tl
-      )
-   | [] -> raise EmptyUri
- in
-  aux
-;;
-
-(* Imperative procedure that builds the two uri trees *)
-let build_uri_tree () =
- let dbh = Dbm.opendbm Configuration.uris_dbm [Dbm.Dbm_rdonly] 0 in
-   Dbm.iter 
-    (fun uri _ ->
-      let cicregexp = Str.regexp "cic:"
-      and theoryregexp = Str.regexp "theory:" in
-       if Str.string_match cicregexp uri 0 then
-        let s = Str.replace_first cicregexp "" uri in
-         let l = Str.split (Str.regexp "/") s in
-          insert_in_uri_tree (UriManager.uri_of_string uri) uritree l
-       else if Str.string_match theoryregexp uri 0 then
-        let s = Str.replace_first theoryregexp "" uri in
-         let l = Str.split (Str.regexp "/") s in
-          insert_in_uri_tree (UriManager.uri_of_string uri) theoryuritree l
-    ) dbh ;
-   Dbm.close dbh
-;;
-
-(* GLOBAL REFERENCES (USED BY CALLBACKS) *)
-
-let annotated_obj = ref None;;      (* reference to a couple option where    *)
-                                    (* the first component is the current    *)
-                                    (* annotated object and the second is    *)
-                                    (* the map from ids to annotated targets *)
-let ann = ref (ref None);;          (* current annotation *)
-let radio_some_status = ref false;; (* is the radio_some button selected? *)
-
-let theory_visited_uris = ref [];;
-let theory_to_visit_uris = ref [];;
-let visited_uris = ref [];;
-let to_visit_uris = ref [];;
-
-(* CALLBACKS *)
-
-exception NoCurrentUri;;
-exception NoNextOrPrevUri;;
-exception GtkInterfaceInternalError;;
-
-let theory_get_current_uri () =
- match !theory_visited_uris with
-    [] -> raise NoCurrentUri
-  | uri::_ -> uri
-;;
-
-let get_current_uri () =
- match !visited_uris with
-    [] -> raise NoCurrentUri
-  | uri::_ -> uri
-;;
-
-let get_annotated_obj () =
- match !annotated_obj with
-    None   ->
-     let (annobj, ids_to_targets,_) =
-      (CicCache.get_annobj (get_current_uri ()))
-     in
-      annotated_obj := Some (annobj, ids_to_targets) ;
-      (annobj, ids_to_targets)
-  | Some annobj -> annobj
-;;
-
-let filename_of_uri uri =
- Getter.get uri
-;;
-
-let theory_update_output rendering_window uri =
- rendering_window#label#set_text (UriManager.string_of_uri uri) ;
- ignore (rendering_window#errors#delete_text 0 rendering_window#errors#length) ;
-  let mmlfile = XsltProcessor.process uri true "theory" in
-   rendering_window#output#load mmlfile
-;;
-
-let update_output rendering_window uri =
- rendering_window#label#set_text (UriManager.string_of_uri uri) ;
- ignore (rendering_window#errors#delete_text 0 rendering_window#errors#length) ;
-  let mmlfile = XsltProcessor.process uri true "cic" in
-   rendering_window#output#load mmlfile
-;;
-
-let theory_next rendering_window () =
- match !theory_to_visit_uris with
-    [] -> raise NoNextOrPrevUri
-  | uri::tl ->
-     theory_to_visit_uris := tl ;
-     theory_visited_uris := uri::!theory_visited_uris ;
-     theory_update_output rendering_window uri ;
-     rendering_window#prevb#misc#set_sensitive true ;
-     if tl = [] then
-      rendering_window#nextb#misc#set_sensitive false
-;;
-
-let next rendering_window () =
- match !to_visit_uris with
-    [] -> raise NoNextOrPrevUri
-  | uri::tl ->
-     to_visit_uris := tl ;
-     visited_uris := uri::!visited_uris ;
-     annotated_obj := None ;
-     update_output rendering_window uri ;
-     rendering_window#prevb#misc#set_sensitive true ;
-     if tl = [] then
-      rendering_window#nextb#misc#set_sensitive false
-;;
-
-let theory_prev rendering_window () =
- match !theory_visited_uris with
-    [] -> raise NoCurrentUri
-  | [_] -> raise NoNextOrPrevUri
-  | uri::(uri'::tl as newvu) ->
-     theory_visited_uris := newvu ;
-     theory_to_visit_uris := uri::!theory_to_visit_uris ;
-     theory_update_output rendering_window uri' ;
-     rendering_window#nextb#misc#set_sensitive true ;
-     if tl = [] then
-      rendering_window#prevb#misc#set_sensitive false
-;;
-
-let prev rendering_window () =
- match !visited_uris with
-    [] -> raise NoCurrentUri
-  | [_] -> raise NoNextOrPrevUri
-  | uri::(uri'::tl as newvu) ->
-     visited_uris := newvu ;
-     to_visit_uris := uri::!to_visit_uris ;
-     annotated_obj := None ;
-     update_output rendering_window uri' ;
-     rendering_window#nextb#misc#set_sensitive true ;
-     if tl = [] then
-      rendering_window#prevb#misc#set_sensitive false
-;;
-
-(* called when an hyperlink is clicked *)
-let jump rendering_window s =
- let uri = UriManager.uri_of_string s in
-  rendering_window#show () ;
-  rendering_window#prevb#misc#set_sensitive true ;
-  rendering_window#nextb#misc#set_sensitive false ;
-  visited_uris := uri::!visited_uris ;
-  to_visit_uris := [] ;
-  annotated_obj := None ;
-  update_output rendering_window uri
-;;
-
-let changefont rendering_window () =
- rendering_window#output#set_font_size rendering_window#spinb#value_as_int
-;;
-
-
-let theory_selection_changed rendering_window uri () =
- match uri with
-    None -> ()
-  | Some uri' ->
-     if !theory_visited_uris <> [] then
-      rendering_window#prevb#misc#set_sensitive true ;
-     rendering_window#nextb#misc#set_sensitive false ;
-     theory_visited_uris := uri'::!theory_visited_uris ;
-     theory_to_visit_uris := [] ;
-     rendering_window#show () ;
-     theory_update_output rendering_window uri'
-;;
-
-let selection_changed rendering_window uri () =
- match uri with
-    None -> ()
-  | Some uri' ->
-     if !visited_uris <> [] then
-      rendering_window#prevb#misc#set_sensitive true ;
-     rendering_window#nextb#misc#set_sensitive false ;
-     visited_uris := uri'::!visited_uris ;
-     to_visit_uris := [] ;
-     annotated_obj := None ;
-     rendering_window#show () ;
-     update_output rendering_window uri'
-;;
-
-(* CSC: unificare con la creazione la prima volta *)
-let rec updateb_pressed theory_rendering_window rendering_window
- (sw1, sw ,(hbox : GPack.box)) mktree ()
-=
- Getter.update () ;
- (* let's empty the uri trees and rebuild them *)
- uritree := [] ;
- theoryuritree := [] ;
- build_uri_tree () ;
- hbox#remove !sw1#coerce ;
- hbox#remove !sw#coerce ;
-
- let sw3 =
-  GBin.scrolled_window ~width:250 ~height:600
-   ~packing:(hbox#pack ~expand:false ~fill:false ~padding:5) () in
- let tree1 =
-  GTree.tree ~selection_mode:`BROWSE ~packing:sw3#add_with_viewport () in
- let tree_item1 = GTree.tree_item ~label:"theory:/" ~packing:tree1#append () in
-  sw1 := sw3 ;
-  ignore(tree_item1#connect#select
-   (theory_selection_changed theory_rendering_window None)) ;
-  mktree theory_selection_changed theory_rendering_window tree_item1
-   (Dir ("theory:/",theoryuritree)) ;
-
- let sw2 =
-  GBin.scrolled_window ~width:250 ~height:600
-   ~packing:(hbox#pack ~expand:false ~fill:false ~padding:5) () in
- let tree =
-  GTree.tree ~selection_mode:`BROWSE ~packing:sw2#add_with_viewport () in
- let tree_item = GTree.tree_item ~label:"cic:/" ~packing:tree#append () in
-  sw := sw2 ;
-  ignore(tree_item#connect#select (selection_changed rendering_window None)) ;
-  mktree selection_changed rendering_window tree_item (Dir ("cic:/",uritree))
-;;
-
-let theory_check rendering_window () =
-  let output =
-  try
-   TheoryTypeChecker.typecheck (theory_get_current_uri ());
-   "Type Checking was successful"
-  with
-   TheoryTypeChecker.NotWellTyped s ->
-    "Type Checking was NOT successful:\n\t" ^ s
- in
-  (* next "cast" can't got rid of, but I don't know why *)
-  let errors = (rendering_window#errors : GEdit.text) in
-  let _ = errors#delete_text 0 errors#length  in
-   errors#insert output
-;;
-
-let check rendering_window () =
-  let output =
-  try
-   CicTypeChecker.typecheck (get_current_uri ());
-   "Type Checking was successful"
-  with
-   CicTypeChecker.NotWellTyped s -> "Type Checking was NOT successful:\n\t" ^ s
- in
-  (* next "cast" can't got rid of, but I don't know why *)
-  let errors = (rendering_window#errors : GEdit.text) in
-  let _ = errors#delete_text 0 errors#length  in
-   errors#insert output
-;;
-
-let annotateb_pressed rendering_window annotation_window () =
- let xpath = (rendering_window#output#get_selection : string option) in
-  match xpath with
-     None -> (rendering_window#errors : GEdit.text)#insert "\nNo selection!\n"
-   | Some xpath ->
-    try
-     let annobj = get_annotated_obj ()
-     (* next "cast" can't got rid of, but I don't know why *)
-     and annotation = (annotation_window#annotation : GEdit.text) in
-      ann := CicXPath.get_annotation annobj xpath ;
-      CicAnnotationHinter.create_hints annotation_window annobj xpath ;
-      annotation#delete_text 0 annotation#length ;
-      begin
-       match !(!ann) with
-           None      ->
-            annotation#misc#set_sensitive false ;
-            annotation_window#radio_none#set_active true ;
-            radio_some_status := false
-         | Some ann' ->
-            annotation#insert ann' ;
-            annotation#misc#set_sensitive true ;
-            annotation_window#radio_some#set_active true ;
-            radio_some_status := true
-      end ;
-      GMain.Grab.add (annotation_window#window_to_annotate#coerce) ;
-      annotation_window#show () ;
-    with
-      e ->
-       (* next "cast" can't got rid of, but I don't know why *)
-       let errors = (rendering_window#errors : GEdit.text) in
-        errors#insert ("\n" ^ Printexc.to_string e ^ "\n")
-;;
-
-(* called when the annotation is confirmed *)
-let save_annotation annotation =
- if !radio_some_status then
-  !ann := Some (annotation#get_chars 0 annotation#length)
- else
-  !ann := None ;
- match !annotated_obj with
-    None -> raise GtkInterfaceInternalError
-  | Some (annobj,_) ->
-     let uri = get_current_uri () in
-      let annxml = Annotation2Xml.pp_annotation annobj uri in
-       Xml.pp annxml (Some (fst (Getter.get_ann_file_name_and_uri uri)))
-;;
-
-let parse_no_cache uri =
- let module U = UriManager in
-  XsltProcessor.process uri false "cic"
-;;
-
-
-(* STUFF TO BUILD THE GTK INTERFACE *)
-
-(* Stuff to build the tree window *)
-
-(* selection_changed is actually selection_changed or theory_selection_changed*)
-let mktree selection_changed rendering_window =
- let rec aux treeitem =
-  function
-     Dir (dirname, content) ->
-      let subtree = GTree.tree () in
-       treeitem#set_subtree subtree ;
-        List.iter
-         (fun ti ->
-           let label = get_name ti
-           and uri = get_uri ti in
-            let treeitem2 = GTree.tree_item ~label:label () in
-             subtree#append treeitem2 ;
-             ignore(treeitem2#connect#select
-              (selection_changed rendering_window uri)) ;
-             aux treeitem2 ti
-         ) (List.sort compare !content)
-   | _ -> ()
- in
-  aux 
-;;
-
-class annotation_window output label =
- let window_to_annotate =
-  GWindow.window ~title:"Annotating environment" ~border_width:2 () in
- let hbox1 =
-  GPack.hbox ~packing:window_to_annotate#add () in
- let vbox1 =
-  GPack.vbox ~packing:(hbox1#pack ~padding:5) () in
- let hbox2 =
-  GPack.hbox ~packing:(vbox1#pack ~expand:false ~fill:false ~padding:5) () in
- let radio_some = GButton.radio_button ~label:"Annotation below"
-  ~packing:(hbox2#pack ~expand:false ~fill:false ~padding:5) () in
- let radio_none = GButton.radio_button ~label:"No annotation"
-  ~group:radio_some#group
-  ~packing:(hbox2#pack ~expand:false ~fill:false ~padding:5)
-  ~active:true () in
- let annotation = GEdit.text ~editable:true ~width:400 ~height:180
-  ~packing:(vbox1#pack ~padding:5) () in
- let table =
-  GPack.table ~rows:3 ~columns:3 ~packing:(vbox1#pack ~padding:5) () in
- let annotation_hints =
-  Array.init 9
-   (function i ->
-     GButton.button ~label:("Hint " ^ string_of_int i)
-      ~packing:(table#attach ~left:(i mod 3) ~top:(i / 3)) ()
-   ) in
- let vbox2 =
-  GPack.vbox ~packing:(hbox1#pack ~expand:false ~fill:false ~padding:5) () in
- let confirmb =
-  GButton.button ~label:"O.K."
-   ~packing:(vbox2#pack ~expand:false ~fill:false ~padding:5) () in
- let abortb =
-  GButton.button ~label:"Abort"
-   ~packing:(vbox2#pack ~expand:false ~fill:false ~padding:5) () in
-object (self)
- method window_to_annotate = window_to_annotate
- method annotation = annotation
- method radio_some = radio_some
- method radio_none = radio_none
- method annotation_hints = annotation_hints
- method output = (output : GMathView.math_view)
- method show () = window_to_annotate#show ()
- initializer
-  (* signal handlers here *)
-  ignore (window_to_annotate#event#connect#delete
-   (fun _ ->
-     window_to_annotate#misc#hide () ;
-     GMain.Grab.remove (window_to_annotate#coerce) ; 
-     true
-   )) ;
-  ignore (confirmb#connect#clicked
-   (fun () ->
-     window_to_annotate#misc#hide () ;
-     save_annotation annotation ;
-     GMain.Grab.remove (window_to_annotate#coerce) ;
-     let new_current_uri =
-      (snd (Getter.get_ann_file_name_and_uri (get_current_uri ())))
-     in
-      visited_uris := new_current_uri::(List.tl !visited_uris) ;
-       label#set_text (UriManager.string_of_uri new_current_uri) ;
-       output#load (parse_no_cache new_current_uri)
-   )) ;
-  ignore (abortb#connect#clicked
-   (fun () ->
-     window_to_annotate#misc#hide () ;
-     GMain.Grab.remove (window_to_annotate#coerce)
-   ));
-  ignore (radio_some#connect#clicked
-   (fun () -> annotation#misc#set_sensitive true ; radio_some_status := true)) ;
-  ignore (radio_none #connect#clicked
-   (fun () ->
-     annotation#misc#set_sensitive false;
-     radio_some_status := false)
-   )
-end;;
-
-class rendering_window annotation_window output (label : GMisc.label) =
- let window =
-  GWindow.window ~title:"MathML viewer" ~border_width:2 () in
- let vbox =
-  GPack.vbox ~packing:window#add () in
- let _ = vbox#pack ~expand:false ~fill:false ~padding:5 label#coerce in
- let paned =
-  GPack.paned `HORIZONTAL ~packing:(vbox#pack ~padding:5) () in
- let scrolled_window0 =
-  GBin.scrolled_window ~border_width:10 ~packing:paned#add1 () in
- let _ = scrolled_window0#add output#coerce in
- let scrolled_window =
-  GBin.scrolled_window
-   ~border_width:10 ~packing:paned#add2 ~width:240 ~height:100 () in
- let errors = GEdit.text ~packing:scrolled_window#add_with_viewport () in
- let hbox =
-  GPack.hbox ~packing:(vbox#pack ~expand:false ~fill:false ~padding:5) () in
- let prevb =
-  GButton.button ~label:"Prev"
-   ~packing:(hbox#pack ~expand:false ~fill:false ~padding:5) () in
- let nextb =
-  GButton.button ~label:"Next"
-   ~packing:(hbox#pack ~expand:false ~fill:false ~padding:5) () in
- let checkb =
-  GButton.button ~label:"Check"
-   ~packing:(hbox#pack ~expand:false ~fill:false ~padding:5) () in
- let annotateb =
-  GButton.button ~label:"Annotate"
-   ~packing:(hbox#pack ~expand:false ~fill:false ~padding:5) () in
- let spinb =
-  let sadj =
-   GData.adjustment ~value:14.0 ~lower:5.0 ~upper:50.0 ~step_incr:1.0 ()
-  in
-   GEdit.spin_button 
-    ~adjustment:sadj ~packing:(hbox#pack ~expand:false ~fill:false ~padding:5)
-    () in
- let closeb =
-  GButton.button ~label:"Close"
-   ~packing:(hbox#pack ~expand:false ~fill:false ~padding:5) () in
-object(self)
- method nextb = nextb
- method prevb = prevb
- method label = label
- method spinb = spinb
- method output = (output : GMathView.math_view)
- method errors = errors
- method show () = window#show ()
- initializer
-  nextb#misc#set_sensitive false ;
-  prevb#misc#set_sensitive false ;
-
-  (* signal handlers here *)
-  ignore(output#connect#jump (jump self)) ;
-  ignore(nextb#connect#clicked (next self)) ;
-  ignore(prevb#connect#clicked (prev self)) ;
-  ignore(checkb#connect#clicked (check self)) ;
-  ignore(spinb#connect#changed (changefont self)) ;
-  ignore(closeb#connect#clicked window#misc#hide) ;
-  ignore(annotateb#connect#clicked (annotateb_pressed self annotation_window)) ;
-  ignore(window#event#connect#delete (fun _ -> window#misc#hide () ; true ))
-end;;
-
-class theory_rendering_window rendering_window =
- let window =
-  GWindow.window ~title:"MathML theory viewer" ~border_width:2 () in
- let vbox =
-  GPack.vbox ~packing:window#add () in
- let label =
-  GMisc.label ~text:"???"
-   ~packing:(vbox#pack ~expand:false ~fill:false ~padding:5) () in
- let paned =
-  GPack.paned `HORIZONTAL ~packing:(vbox#pack ~padding:5) () in
- let scrolled_window0 =
-  GBin.scrolled_window ~border_width:10 ~packing:paned#add1 () in
- let output =
-  GMathView.math_view ~width:400 ~height:380 ~packing:scrolled_window0#add () in
- let scrolled_window =
-  GBin.scrolled_window
-   ~border_width:10 ~packing:paned#add2 ~width:240 ~height:100 () in
- let errors = GEdit.text ~packing:scrolled_window#add_with_viewport () in
- let hbox =
-  GPack.hbox ~packing:(vbox#pack ~expand:false ~fill:false ~padding:5) () in
- let prevb =
-  GButton.button ~label:"Prev"
-   ~packing:(hbox#pack ~expand:false ~fill:false ~padding:5) () in
- let nextb =
-  GButton.button ~label:"Next"
-   ~packing:(hbox#pack ~expand:false ~fill:false ~padding:5) () in
- let checkb =
-  GButton.button ~label:"Check"
-   ~packing:(hbox#pack ~expand:false ~fill:false ~padding:5) () in
- let spinb =
-  let sadj =
-   GData.adjustment ~value:14.0 ~lower:5.0 ~upper:50.0 ~step_incr:1.0 ()
-  in
-   GEdit.spin_button 
-    ~adjustment:sadj ~packing:(hbox#pack ~expand:false ~fill:false ~padding:5)
-    () in
- let closeb =
-  GButton.button ~label:"Close"
-   ~packing:(hbox#pack ~expand:false ~fill:false ~padding:5) () in
-object(self)
- method nextb = nextb
- method prevb = prevb
- method label = label
- method output = (output : GMathView.math_view)
- method errors = errors
- method spinb = spinb
- method show () = window#show ()
- initializer
-  nextb#misc#set_sensitive false ;
-  prevb#misc#set_sensitive false ;
-
-  (* signal handlers here *)
-  ignore(output#connect#jump (jump rendering_window)) ;
-  ignore(nextb#connect#clicked (theory_next self)) ;
-  ignore(prevb#connect#clicked (theory_prev self)) ;
-  ignore(checkb#connect#clicked (theory_check self)) ;
-  ignore(spinb#connect#changed (changefont self)) ;
-  ignore(closeb#connect#clicked window#misc#hide) ;
-  ignore(window#event#connect#delete (fun _ -> window#misc#hide () ; true ))
-end;;
-
-(* CSC: fare in modo che i due alberi vengano svuotati invece che distrutti *)
-class selection_window theory_rendering_window rendering_window =
-  let label = "cic:/" in
-  let theorylabel = "theory:/" in
-  let win = GWindow.window ~title:"Known uris" ~border_width:2 () in
-  let vbox = GPack.vbox ~packing:win#add () in
-  let hbox1 = GPack.hbox ~packing:(vbox#pack ~padding:5) () in
-  let sw1 = GBin.scrolled_window ~width:250 ~height:600
-   ~packing:(hbox1#pack ~padding:5) () in
-  let tree1 =
-   GTree.tree ~selection_mode:`BROWSE ~packing:sw1#add_with_viewport () in
-  let tree_item1 =
-   GTree.tree_item ~label:theorylabel ~packing:tree1#append () in
-  let sw = GBin.scrolled_window ~width:250 ~height:600
-   ~packing:(hbox1#pack ~padding:5) () in
-  let tree =
-   GTree.tree ~selection_mode:`BROWSE ~packing:sw#add_with_viewport () in
-  let tree_item =
-   GTree.tree_item ~label:label ~packing:tree#append () in
-  let hbox =
-   GPack.hbox ~packing:(vbox#pack ~expand:false ~fill:false ~padding:5) () in
-  let updateb =
-   GButton.button ~label:"Update"
-    ~packing:(hbox#pack ~expand:false ~fill:false ~padding:5) () in
-  let quitb =
-   GButton.button ~label:"Quit"
-    ~packing:(hbox#pack ~expand:false ~fill:false ~padding:5) () in
-object (self)
-  method show () = win#show ()
-  initializer
-    mktree theory_selection_changed theory_rendering_window tree_item1
-     (Dir ("theory:/",theoryuritree));
-    mktree selection_changed rendering_window tree_item
-     (Dir ("cic:/",uritree));
-
-    (* signal handlers here *)
-    ignore (tree_item1#connect#select
-     ~callback:(theory_selection_changed theory_rendering_window None)) ;
-    ignore (tree_item#connect#select
-     ~callback:(selection_changed rendering_window None)) ;
-    ignore (win#connect#destroy ~callback:GMain.Main.quit) ;
-    ignore (quitb#connect#clicked GMain.Main.quit) ;
-    ignore(updateb#connect#clicked (updateb_pressed
-     theory_rendering_window rendering_window (ref sw1, ref sw, hbox1) mktree))
-end;;
-
-
-(* MAIN *)
-
-let _ =
- build_uri_tree () ;
- let output = GMathView.math_view ~width:400 ~height:380 ()
- and label = GMisc.label ~text:"???" () in
-  let annotation_window = new annotation_window output label in
-  let rendering_window = new rendering_window annotation_window output label in
-  let theory_rendering_window = new theory_rendering_window rendering_window in
-  let selection_window =
-   new selection_window theory_rendering_window rendering_window
-  in
-   selection_window#show () ;
-   GMain.Main.main ()
-;;
diff --git a/helm/interface/mmlinterface.opt.saved b/helm/interface/mmlinterface.opt.saved
deleted file mode 100755
index cb5708ade..000000000
Binary files a/helm/interface/mmlinterface.opt.saved and /dev/null differ
diff --git a/helm/interface/pxpUriResolver.ml b/helm/interface/pxpUriResolver.ml
deleted file mode 100644
index 6ebbf71bd..000000000
--- a/helm/interface/pxpUriResolver.ml
+++ /dev/null
@@ -1,101 +0,0 @@
-(******************************************************************************)
-(*                                                                            *)
-(*                               PROJECT HELM                                 *)
-(*                                                                            *)
-(*                Claudio Sacerdoti Coen <sacerdot@cs.unibo.it>               *)
-(*                                 11/10/2000                                 *)
-(*                                                                            *)
-(*                                                                            *)
-(******************************************************************************)
-
-let resolve =
- function
-    "http://localhost:8081/getdtd?url=cic.dtd" ->
-     Configuration.dtd_dir ^ "/cic.dtd"
-  | "http://localhost:8081/getdtd?url=maththeory.dtd" ->
-     Configuration.dtd_dir ^ "/maththeory.dtd"
-  | "http://localhost:8081/getdtd?url=annotations.dtd" ->
-     Configuration.dtd_dir ^ "/annotations.dtd"
-  | s  -> s
-;;
-
-let url_syntax =
-    let enable_if =
-      function
-	  `Not_recognized  -> Neturl.Url_part_not_recognized
-	| `Allowed         -> Neturl.Url_part_allowed
-	| `Required        -> Neturl.Url_part_required
-    in
-    { Neturl.null_url_syntax with
-	Neturl.url_enable_scheme = enable_if `Allowed;
-	Neturl.url_enable_host   = enable_if `Allowed;
-	Neturl.url_enable_path   = Neturl.Url_part_required;
-	Neturl.url_accepts_8bits = true;
-    } 
-;;
-
-let file_url_of_id xid =
-  let file_url_of_sysname sysname =
-    (* By convention, we can assume that sysname is a URL conforming
-     * to RFC 1738 with the exception that it may contain non-ASCII
-     * UTF-8 characters. 
-     *)
-    try
-     Neturl.url_of_string url_syntax sysname 
-        (* may raise Malformed_URL *)
-    with
-     Neturl.Malformed_URL -> raise Pxp_reader.Not_competent
-  in
-  let url =
-    match xid with
-       Pxp_types.Anonymous          -> raise Pxp_reader.Not_competent
-     | Pxp_types.Public (_,sysname) ->
-        let sysname = resolve sysname in
-         if sysname <> "" then file_url_of_sysname sysname
-                          else raise Pxp_reader.Not_competent
-     | Pxp_types.System sysname     ->
-        let sysname = resolve sysname in
-         file_url_of_sysname sysname
-  in
-  let scheme =
-    try Neturl.url_scheme url with Not_found -> "file" in
-  let host =
-    try Neturl.url_host url with Not_found -> "" in
-    
-  if scheme <> "file" then raise Pxp_reader.Not_competent;
-  if host <> "" && host <> "localhost" then raise Pxp_reader.Not_competent;
-    
-  url
-;;
-
-let from_file ?system_encoding utf8_filename =
-  
-  let r =
-    new Pxp_reader.resolve_as_file 
-      ?system_encoding:system_encoding
-      ~url_of_id:file_url_of_id
-      ()
-  in
-
-  let utf8_abs_filename =
-    if utf8_filename <> "" && utf8_filename.[0] = '/' then
-      utf8_filename
-    else
-      Sys.getcwd() ^ "/" ^ utf8_filename
-  in
-
-  let syntax = { Neturl.ip_url_syntax with Neturl.url_accepts_8bits = true } in
-  let url = Neturl.make_url 
-	      ~scheme:"file" 
-	      ~host:"localhost" 
-	      ~path:(Neturl.split_path utf8_abs_filename) 
-	      syntax
-  in
-
-  let xid = Pxp_types.System (Neturl.string_of_url url) in
-    
-
-  Pxp_yacc.ExtID(xid, r)
-;;
-
-
diff --git a/helm/interface/reduction.ml b/helm/interface/reduction.ml
deleted file mode 100644
index 8acb8eb94..000000000
--- a/helm/interface/reduction.ml
+++ /dev/null
@@ -1,70 +0,0 @@
-let read_from_stdin = ref false;;
-let uris_in_input = ref false;;
-let reduction_only = ref false;;
-
-let parse uri =
- print_endline ("^^^" ^ uri ^ "^^^") ;
- print_string (CicPp.ppobj (CicCache.get_obj (UriManager.uri_of_string uri))) ;
- print_endline ("\n$$$" ^ uri ^ "$$$\n")
-;;
-
-let uri_of_filename fn =
- if !uris_in_input then fn
- else
-  let uri =
-   Str.replace_first (Str.regexp (Str.quote Configuration.helm_dir)) "cic:" fn
-  in
-   let uri' = Str.replace_first (Str.regexp "\.xml$") "" uri in
-    uri'
-;;
-
-(* filenames are read from command line and converted to uris via *)
-(* uri_of_filenames; then the cic terms are load in cache via     *)
-(* CicCache.get_obj and then pretty printed via CicPp.ppobj       *)
-
-exception NotADefinition;;
-
-let main () =
- let files = ref [] in
- Arg.parse
-  ["-stdin", Arg.Set read_from_stdin, "Read from stdin" ;
-   "-uris", Arg.Set uris_in_input, "Read uris, not filenames" ;
-   "-update", Arg.Unit Getter.update, "Update the getter view of the world" ;
-   "-reduction", Arg.Set reduction_only, "Do reduction instead of tyepchecking"]
-  (fun x -> files := (uri_of_filename x) :: !files)
-  "
-usage: experiment file ...
-
-List of options:";
- if !read_from_stdin then
-  begin
-   try
-    while true do
-     let l = Str.split (Str.regexp " ") (read_line ()) in
-      List.iter (fun x -> files := (uri_of_filename x) :: !files) l
-    done
-   with
-    End_of_file -> ()
-  end ;
- files := List.rev !files;
-  List.iter
-   (function x ->
-     print_string x ;
-     flush stdout ;
-     (try
-       if !reduction_only then
-        match CicCache.get_obj (UriManager.uri_of_string x) with
-           Cic.Definition (_,bo,_,_) ->
-            CicTypeChecker.typecheck (UriManager.uri_of_string x) ;
-            ignore (CicReduction.whd bo)
-         | _ -> raise NotADefinition
-       else
-        CicTypeChecker.typecheck (UriManager.uri_of_string x)
-     with
-       e -> print_newline () ; flush stdout ; raise e ) ;
-     print_endline " OK!" ;
-     flush stdout
-   ) !files
-;;
-
-main ();;
diff --git a/helm/interface/servers.txt b/helm/interface/servers.txt
deleted file mode 100644
index b91a71522..000000000
--- a/helm/interface/servers.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-http://caristudenti.students.cs.unibo.it/~sacerdot/helm
-http://pagadebit.students.cs.unibo.it/really_very_local/helm/PARSER/examples
diff --git a/helm/interface/servers.txt.example b/helm/interface/servers.txt.example
deleted file mode 100644
index 0a1221dde..000000000
--- a/helm/interface/servers.txt.example
+++ /dev/null
@@ -1,2 +0,0 @@
-http://rigoletto.casamia.csc/helm1/coq
-http://rigoletto.casamia.csc/helm2/coq
diff --git a/helm/interface/servers.txt.universita b/helm/interface/servers.txt.universita
deleted file mode 100755
index c24a58cad..000000000
--- a/helm/interface/servers.txt.universita
+++ /dev/null
@@ -1,2 +0,0 @@
-http://phd.cs.unibo.it/helm/PARSER/examples
-http://caristudenti.students.cs.unibo.it/~sacerdot/helm
diff --git a/helm/interface/theory.ml b/helm/interface/theory.ml
deleted file mode 100644
index be5b288b3..000000000
--- a/helm/interface/theory.ml
+++ /dev/null
@@ -1,9 +0,0 @@
-type theory_elem =
-   Theorem of string                    (* uri *)
- | Definition of string                 (* uri *)
- | Axiom of string                      (* uri *)
- | Variable of string                   (* uri *)
- | Section of string * theory_elem list (* uri, subtheory *)
-and theory =
- string * theory_elem list              (* uri, subtheory *)
-;;
diff --git a/helm/interface/theoryCache.ml b/helm/interface/theoryCache.ml
deleted file mode 100644
index 47a8646b5..000000000
--- a/helm/interface/theoryCache.ml
+++ /dev/null
@@ -1,32 +0,0 @@
-type check_status = Checked | Unchecked;;
-
-let hashtable = Hashtbl.create 17;;
-
-let get_term_and_type_checking_info uri =
- try
-  Hashtbl.find hashtable uri
- with
-  Not_found -> 
-   let filename = Getter.get uri in
-    let term = TheoryParser.theory_of_xml filename in
-     Hashtbl.add hashtable uri (term, Unchecked) ;
-     (term, Unchecked)
-;;
-
-
-let get_theory uri =
- fst (get_term_and_type_checking_info uri)
-;;
-
-let is_type_checked uri =
- match snd (get_term_and_type_checking_info uri) with
-    Checked   -> true
-  | Unchecked -> false
-;;
-
-let set_type_checking_info uri =
- match Hashtbl.find hashtable uri with
-  (term, _) ->
-   Hashtbl.remove hashtable uri ;
-   Hashtbl.add hashtable uri (term, Checked)
-;;
diff --git a/helm/interface/theoryParser.ml b/helm/interface/theoryParser.ml
deleted file mode 100644
index abc352807..000000000
--- a/helm/interface/theoryParser.ml
+++ /dev/null
@@ -1,29 +0,0 @@
-exception Warnings;;
-
-class warner =
-  object 
-    method warn w =
-      print_endline ("WARNING: " ^ w) ;
-      (raise Warnings : unit)
-  end
-;;
-
-exception EmptyUri;;
-
-let theory_of_xml filename =
- let module Y = Pxp_yacc in
-  try 
-    let d =
-     let config = {Y.default_config with Y.warner = new warner} in
-      Y.parse_document_entity config
-(*PXP       (Y.ExtID (Pxp_types.System filename,
-         new Pxp_reader.resolve_as_file ~url_of_id ()))
-*)     (PxpUriResolver.from_file filename)
-       Y.default_spec
-    in
-     TheoryParser2.get_theory d#root
-  with
-   e ->
-     print_endline (Pxp_types.string_of_exn e) ;
-     raise e
-;;
diff --git a/helm/interface/theoryParser2.ml b/helm/interface/theoryParser2.ml
deleted file mode 100644
index 666b024fc..000000000
--- a/helm/interface/theoryParser2.ml
+++ /dev/null
@@ -1,41 +0,0 @@
-exception IllFormedXml of int;;
-
-(* Utility functions that transform a Pxp attribute into something useful *)
-
-let string_of_attr a =
- let module T = Pxp_types in
-  match a with
-     T.Value s -> s
-   | _ -> raise (IllFormedXml 0)
-
-let get_theory n =
- let module D = Pxp_document in
- let module T = Theory in
-  let rec get_theory_elem n =
-   let ntype = n # node_type in
-   match ntype with
-     D.T_element "THEOREM" ->
-       let uri = string_of_attr (n # attribute "uri") in
-        T.Theorem uri
-   | D.T_element "DEFINITION" ->
-       let uri = string_of_attr (n # attribute "uri") in
-        T.Definition uri
-   | D.T_element "AXIOM" ->
-      let uri = string_of_attr (n # attribute "uri") in
-       T.Axiom uri
-   | D.T_element "VARIABLE" ->
-      let uri = string_of_attr (n # attribute "uri") in
-       T.Variable uri
-   | D.T_element "SECTION" ->
-      let uri = string_of_attr (n # attribute "uri")
-      and subtheory = List.map get_theory_elem (n # sub_nodes) in
-       T.Section (uri, subtheory)
-   | D.T_element _ | D.T_data | _ ->
-      raise (IllFormedXml 1)
-  in
-   match n # node_type with
-      D.T_element "Theory" ->
-       let uri = string_of_attr (n # attribute "uri") in
-        (uri, List.map get_theory_elem (n # sub_nodes))
-    | _ -> raise (IllFormedXml 2)
-;;
diff --git a/helm/interface/theoryTypeChecker.ml b/helm/interface/theoryTypeChecker.ml
deleted file mode 100644
index 2d2453633..000000000
--- a/helm/interface/theoryTypeChecker.ml
+++ /dev/null
@@ -1,29 +0,0 @@
-exception NotWellTyped of string;;
-
-let typecheck uri =
-  let rec typecheck_term curi t =
-  let module T = Theory in
-  let module P = CicTypeChecker in
-  let module C = CicCache in
-  let module U = UriManager in
-  let obj_typecheck uri =
-   try
-    P.typecheck (U.uri_of_string uri)
-   with
-    P.NotWellTyped s ->
-     raise (NotWellTyped
-      ("Type Checking was NOT successfull due to an error during " ^
-       "type-checking of term " ^ uri ^ ":\n\n" ^ s))
-  in
-    match t with
-       T.Theorem uri -> obj_typecheck (curi ^ "/" ^ uri)
-     | T.Definition uri -> obj_typecheck (curi ^ "/" ^ uri)
-     | T.Axiom uri -> obj_typecheck (curi ^ "/" ^ uri)
-     | T.Variable uri -> obj_typecheck (curi ^ "/" ^ uri)
-     | T.Section (uri,l) -> typecheck_theory l (curi ^ "/" ^ uri)
- and typecheck_theory l curi =
-  List.iter (typecheck_term curi) l
- in
-  let (uri, l) = TheoryCache.get_theory uri in
-   typecheck_theory l uri
-;;
diff --git a/helm/interface/toglie_helm_xref.pl b/helm/interface/toglie_helm_xref.pl
deleted file mode 100755
index 13c9739ab..000000000
--- a/helm/interface/toglie_helm_xref.pl
+++ /dev/null
@@ -1,8 +0,0 @@
-#!/usr/bin/perl
-
-while(<STDIN>)
-{
-  s/helm:xref="[^"]*"//g;
-  s/helm:xref='[^']*'//g;
-  print;
-}
diff --git a/helm/interface/toglie_helm_xref.sh b/helm/interface/toglie_helm_xref.sh
deleted file mode 100755
index b3cb4e0d4..000000000
--- a/helm/interface/toglie_helm_xref.sh
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/bin/bash
-
-echo "****" $1
-cp $1 /tmp/pippo
-cat /tmp/pippo | ./toglie_helm_xref.pl > $1
diff --git a/helm/interface/uriManager.ml b/helm/interface/uriManager.ml
deleted file mode 100644
index d03d9970f..000000000
--- a/helm/interface/uriManager.ml
+++ /dev/null
@@ -1,86 +0,0 @@
-(* "cic:/a/b/c.con" => [| "cic:/a" ; "cic:/a/b" ; "cic:/a/b/c.con" ; "c" |] *)
-type uri = string array;;
-
-let eq uri1 uri2 =
- uri1 == uri2
-;;
-
-let string_of_uri uri = uri.(Array.length uri - 2);;
-let name_of_uri uri = uri.(Array.length uri - 1);;
-let buri_of_uri uri = uri.(Array.length uri - 3);;
-let depth_of_uri uri = Array.length uri - 2;;
-
-(*CSC: ora e' diventato poco efficiente, migliorare *)
-let relative_depth curi uri cookingsno =
- let rec length_of_current_prefix l1 l2 =
-  match (l1, l2) with
-     (he1::tl1, he2::tl2) when he1 == he2 ->
-       1 + length_of_current_prefix tl1 tl2
-   | (_,_) -> 0
- in
-  depth_of_uri uri -
-   length_of_current_prefix
-    (Array.to_list (Array.sub curi 0 (Array.length curi - (2 + cookingsno))))
-    (Array.to_list (Array.sub uri 0 (Array.length uri - 2)))
-  (*CSC: vecchio codice da eliminare
-  if eq curi uri then 0
-  else
-   depth_of_uri uri -
-    length_of_current_prefix (Array.to_list curi) (Array.to_list uri)
-  *)
-;;
-
-module OrderedStrings =
- struct
-  type t = string
-  let compare (s1 : t) (s2 : t) = compare s1 s2
- end
-;;
-
-module SetOfStrings = Map.Make(OrderedStrings);;
-
-(*CSC: commento obsoleto ed errato *)
-(* Invariant: the map is the identity function,      *)
-(*  i.e. (SetOfStrings.find str !set_of_uri) == str  *)
-let set_of_uri = ref SetOfStrings.empty;;
-let set_of_prefixes = ref SetOfStrings.empty;;
-
-(* similar to uri_of_string, but used for prefixes of uris *)
-let normalize prefix =
- try
-  SetOfStrings.find prefix !set_of_prefixes
- with
-  Not_found ->
-   set_of_prefixes := SetOfStrings.add prefix prefix !set_of_prefixes ;
-   prefix
-;;
-
-exception IllFormedUri of string;;
-
-let mk_prefixes str =
- let rec aux curi =
-  function
-     [he] ->
-      let prefix_uri = curi ^ "/" ^ he
-      and name = List.hd (Str.split (Str.regexp "\.") he) in
-       [ normalize prefix_uri ; name ]
-   | he::tl ->
-      let prefix_uri = curi ^ "/" ^ he in
-       (normalize prefix_uri)::(aux prefix_uri tl)
-   | _ -> raise (IllFormedUri str)
- in
-  let tokens = (Str.split (Str.regexp "/") str) in
-   (* ty = "cic:" *)
-   let (ty, sp) = (List.hd tokens, List.tl tokens) in
-    aux ty sp
-;;
-
-let uri_of_string str =
- try
-  SetOfStrings.find str !set_of_uri
- with
-  Not_found ->
-   let uri = Array.of_list (mk_prefixes str) in
-    set_of_uri := SetOfStrings.add str uri !set_of_uri ;
-    uri
-;;
diff --git a/helm/interface/uriManager.ml.implementazione_banale b/helm/interface/uriManager.ml.implementazione_banale
deleted file mode 100644
index cd0d71f71..000000000
--- a/helm/interface/uriManager.ml.implementazione_banale
+++ /dev/null
@@ -1,18 +0,0 @@
-type uri = string;;
-
-let eq uri1 uri2 =
- uri1 = uri2
-;;
-
-let string_of_uri uri = uri;;
-let uri_of_string str = str;;
-
-let name_of_uri uri =
- let l = Str.split (Str.regexp "/") uri in
-  let name_suf = List.nth l (List.length l - 1) in
-   List.hd (Str.split (Str.regexp "\.") name_suf)
-;;
-
-let depth_of_uri uri =
- List.length (Str.split (Str.regexp "/") uri) - 2
-;;
diff --git a/helm/interface/uriManager.ml.implementazione_doppia b/helm/interface/uriManager.ml.implementazione_doppia
deleted file mode 100644
index d03d9970f..000000000
--- a/helm/interface/uriManager.ml.implementazione_doppia
+++ /dev/null
@@ -1,86 +0,0 @@
-(* "cic:/a/b/c.con" => [| "cic:/a" ; "cic:/a/b" ; "cic:/a/b/c.con" ; "c" |] *)
-type uri = string array;;
-
-let eq uri1 uri2 =
- uri1 == uri2
-;;
-
-let string_of_uri uri = uri.(Array.length uri - 2);;
-let name_of_uri uri = uri.(Array.length uri - 1);;
-let buri_of_uri uri = uri.(Array.length uri - 3);;
-let depth_of_uri uri = Array.length uri - 2;;
-
-(*CSC: ora e' diventato poco efficiente, migliorare *)
-let relative_depth curi uri cookingsno =
- let rec length_of_current_prefix l1 l2 =
-  match (l1, l2) with
-     (he1::tl1, he2::tl2) when he1 == he2 ->
-       1 + length_of_current_prefix tl1 tl2
-   | (_,_) -> 0
- in
-  depth_of_uri uri -
-   length_of_current_prefix
-    (Array.to_list (Array.sub curi 0 (Array.length curi - (2 + cookingsno))))
-    (Array.to_list (Array.sub uri 0 (Array.length uri - 2)))
-  (*CSC: vecchio codice da eliminare
-  if eq curi uri then 0
-  else
-   depth_of_uri uri -
-    length_of_current_prefix (Array.to_list curi) (Array.to_list uri)
-  *)
-;;
-
-module OrderedStrings =
- struct
-  type t = string
-  let compare (s1 : t) (s2 : t) = compare s1 s2
- end
-;;
-
-module SetOfStrings = Map.Make(OrderedStrings);;
-
-(*CSC: commento obsoleto ed errato *)
-(* Invariant: the map is the identity function,      *)
-(*  i.e. (SetOfStrings.find str !set_of_uri) == str  *)
-let set_of_uri = ref SetOfStrings.empty;;
-let set_of_prefixes = ref SetOfStrings.empty;;
-
-(* similar to uri_of_string, but used for prefixes of uris *)
-let normalize prefix =
- try
-  SetOfStrings.find prefix !set_of_prefixes
- with
-  Not_found ->
-   set_of_prefixes := SetOfStrings.add prefix prefix !set_of_prefixes ;
-   prefix
-;;
-
-exception IllFormedUri of string;;
-
-let mk_prefixes str =
- let rec aux curi =
-  function
-     [he] ->
-      let prefix_uri = curi ^ "/" ^ he
-      and name = List.hd (Str.split (Str.regexp "\.") he) in
-       [ normalize prefix_uri ; name ]
-   | he::tl ->
-      let prefix_uri = curi ^ "/" ^ he in
-       (normalize prefix_uri)::(aux prefix_uri tl)
-   | _ -> raise (IllFormedUri str)
- in
-  let tokens = (Str.split (Str.regexp "/") str) in
-   (* ty = "cic:" *)
-   let (ty, sp) = (List.hd tokens, List.tl tokens) in
-    aux ty sp
-;;
-
-let uri_of_string str =
- try
-  SetOfStrings.find str !set_of_uri
- with
-  Not_found ->
-   let uri = Array.of_list (mk_prefixes str) in
-    set_of_uri := SetOfStrings.add str uri !set_of_uri ;
-    uri
-;;
diff --git a/helm/interface/uriManager.ml.implementazione_semplice b/helm/interface/uriManager.ml.implementazione_semplice
deleted file mode 100644
index 8b8921b3e..000000000
--- a/helm/interface/uriManager.ml.implementazione_semplice
+++ /dev/null
@@ -1,39 +0,0 @@
-type uri = string;;
-
-let eq uri1 uri2 =
- uri1 == uri2
-;;
-
-let string_of_uri uri = uri;;
-
-let name_of_uri uri =
- let l = Str.split (Str.regexp "/") uri in
-  let name_suf = List.nth l (List.length l - 1) in
-   List.hd (Str.split (Str.regexp "\.") name_suf)
-;;
-
-let depth_of_uri uri =
- List.length (Str.split (Str.regexp "/") uri) - 2
-;;
-
-module OrderedStrings =
- struct
-  type t = string
-  let compare (s1 : t) (s2 : t) = compare s1 s2
- end
-;;
-
-module SetOfStrings = Map.Make(OrderedStrings);;
-
-(* Invariant: the map is the identity function,      *)
-(*  i.e. (SetOfStrings.find str !set_of_uri) == str  *)
-let set_of_uri = ref SetOfStrings.empty;;
-
-let uri_of_string str =
- try
-  SetOfStrings.find str !set_of_uri
- with
-  Not_found ->
-   set_of_uri := SetOfStrings.add str str !set_of_uri ;
-   str
-;;
diff --git a/helm/interface/uriManager.mli b/helm/interface/uriManager.mli
deleted file mode 100644
index 8cffc943a..000000000
--- a/helm/interface/uriManager.mli
+++ /dev/null
@@ -1,15 +0,0 @@
-type uri
-
-val eq : uri -> uri -> bool
-
-val uri_of_string : string -> uri
-
-val string_of_uri : uri -> string  (* complete uri *)
-val name_of_uri   : uri -> string  (* name only (without extension)*)
-val buri_of_uri   : uri -> string  (* base uri only *)
-val depth_of_uri  : uri -> int     (* length of the path *)
-
-(* relative_depth curi uri cookingsno                                        *)
-(* is the number of times to cook uri to use it when the current uri is curi *)
-(* cooked cookingsno times                                                   *)
-val relative_depth : uri -> uri -> int -> int
diff --git a/helm/interface/uris_of_filenames.pl b/helm/interface/uris_of_filenames.pl
deleted file mode 100755
index d738f51b7..000000000
--- a/helm/interface/uris_of_filenames.pl
+++ /dev/null
@@ -1,15 +0,0 @@
-#!/usr/bin/perl
-
-while(<STDIN>) {
-   chomp;
-   split / /;
-   for (@_) {
-      if (/.*\.(con|var|ind)\.xml/)
-       { s/\./cic:/; }
-      elsif (/.*\.theory\.xml/)
-       { s/\./theory:/; }
-      s/\.xml//;
-      print;
-      print "\n";
- }
-}
diff --git a/helm/interface/urls_of_uris.db b/helm/interface/urls_of_uris.db
deleted file mode 100644
index ef6b46a51..000000000
Binary files a/helm/interface/urls_of_uris.db and /dev/null differ
diff --git a/helm/interface/xaland-cpp/xaland.cpp b/helm/interface/xaland-cpp/xaland.cpp
deleted file mode 100644
index e22140267..000000000
--- a/helm/interface/xaland-cpp/xaland.cpp
+++ /dev/null
@@ -1,207 +0,0 @@
-// Base header file.  Must be first.
-#include <Include/PlatformDefinitions.hpp>
-
-#include <iostream>
-#include <fstream>
-
-#include <util/PlatformUtils.hpp>
-
-#include <PlatformSupport/DOMStringHelper.hpp>
-
-#include <DOMSupport/DOMSupportDefault.hpp>
-
-#include <XPath/XObjectFactoryDefault.hpp>
-#include <XPath/XPathSupportDefault.hpp>
-#include <XPath/XPathFactoryDefault.hpp>
-
-#include <XSLT/StylesheetConstructionContextDefault.hpp>
-#include <XSLT/StylesheetExecutionContextDefault.hpp>
-#include <XSLT/XSLTEngineImpl.hpp>
-#include <XSLT/XSLTInit.hpp>
-#include <XSLT/XSLTInputSource.hpp>
-#include <XSLT/XSLTProcessorEnvSupportDefault.hpp>
-#include <XSLT/XSLTResultTarget.hpp>
-
-#include <XercesParserLiaison/XercesDOMSupport.hpp>
-#include <XercesParserLiaison/XercesParserLiaison.hpp>
-
-int main(int argc, const char* [])
-{
-#if !defined(XALAN_NO_NAMESPACES)
-   using std::cerr;
-   using std::endl;
-   using std::ofstream;
-#endif
-
-   if (argc != 1) {
-      cerr << "Usage: SimpleTransform"
-           << endl
-           << endl;
-   } else {
-      try {
-         // Call the static initializer for Xerces...
-         XMLPlatformUtils::Initialize();
-
-         {
-            // Initialize the Xalan XSLT subsystem...
-            XSLTInit theInit;
-
-            // Create the support objects that are necessary for
-            // running the processor...
-            XercesDOMSupport theDOMSupport;
-            XercesParserLiaison	theParserLiaison(theDOMSupport);
-            XPathSupportDefault	theXPathSupport(theDOMSupport);
-            XSLTProcessorEnvSupportDefault theXSLTProcessorEnvSupport;
-            XObjectFactoryDefault theXObjectFactory;
-            XPathFactoryDefault	theXPathFactory;
-
-            // Create a processor...
-            XSLTEngineImpl theProcessor(
-               theParserLiaison,
-               theXPathSupport,
-               theXSLTProcessorEnvSupport,
-               theDOMSupport,
-               theXObjectFactory,
-               theXPathFactory);
-
-            // Connect the processor to the support object...
-           theXSLTProcessorEnvSupport.setProcessor(&theProcessor);
-
-           // Create a stylesheet construction context, and a stylesheet
-           // execution context...
-           StylesheetConstructionContextDefault theConstructionContext(
-              theProcessor,
-              theXSLTProcessorEnvSupport,
-              theXPathFactory);
-
-           StylesheetExecutionContextDefault theExecutionContext(
-              theProcessor,
-              theXSLTProcessorEnvSupport,
-              theXPathSupport,
-              theXObjectFactory);
-
-           // Our input files...The assumption is that the executable will be
-           // run from same directory as the input files.
-           const XalanDOMString	theXMLFileName("foo.xml");
-           const XalanDOMString	theXSLFileName("foo.xsl");
-
-           // Our input sources...
-           XSLTInputSource theInputSource(c_wstr(theXMLFileName));
-           XSLTInputSource theStylesheetSource(c_wstr(theXSLFileName));
-
-           // Our output target...
-           const XalanDOMString theOutputFileName("foo.out");
-           XSLTResultTarget theResultTarget(theOutputFileName);
-
-           theProcessor.process(
-              theInputSource,
-              theStylesheetSource,
-              theResultTarget,
-              theConstructionContext,
-              theExecutionContext);
-
-         }
-
-         // Call the static terminator for Xerces...
-         XMLPlatformUtils::Terminate();
-      }
-      catch(...) {
-         cerr << "Exception caught!!!"
-              << endl
-              << endl;
-      }
-   }
-
-   return 0;
-}
-
-/**************************************************/
-/*
-
-public class xaland {
-   public static void Transform(StylesheetRoot style, String xmlSourceURL, String OutputURL) throws java.io.IOException, java.net.MalformedURLException, org.xml.sax.SAXException
-   {
-      XSLTInputSource xmlSource = new XSLTInputSource (xmlSourceURL);
-      XSLTResultTarget xmlResult = new XSLTResultTarget (OutputURL);
-      style.process(xmlSource, xmlResult);
-   }
-
-   public static void main(String argv[]) throws  java.io.IOException, java.net.MalformedURLException, org.xml.sax.SAXException
-   {
-      int port    = Integer.parseInt(argv[0]);
-      int port2   = Integer.parseInt(argv[1]);
-      String xsl1 = argv[2];
-      String xsl2 = argv[3];
-      String theory_xsl1 = argv[4];
-      String theory_xsl2 = argv[5];
-
-      XSLTProcessor theory_processor =
-       XSLTProcessorFactory.getProcessor(new org.apache.xalan.xpath.xdom.XercesLiaison());
-      StylesheetRoot theory_style1 =
-         theory_processor.processStylesheet(theory_xsl1);
-      theory_processor.reset();
-      StylesheetRoot theory_style2 =
-         theory_processor.processStylesheet(theory_xsl2);
-      theory_processor.setStylesheet(theory_style2);
-
-      XSLTProcessor processor =
-       XSLTProcessorFactory.getProcessor(new org.apache.xalan.xpath.xdom.XercesLiaison());
-      StylesheetRoot style1 = processor.processStylesheet(xsl1);
-      processor.reset();
-      StylesheetRoot style2 = processor.processStylesheet(xsl2);
-      processor.setStylesheet(style2);
-
-      DatagramSocket socket = new DatagramSocket(port);
-
-      System.out.println("Demon activated on input port " + port +
-       " and output port " + port2);
-      while(true) {
-         System.out.print("Ready...");
-
-         /* Warning: the packet must be a fresh one! * /
-         DatagramPacket packet = new DatagramPacket(new byte[1024],1024);
-         socket.receive(packet);
-         byte data[] = packet.getData();
-         int datalen = packet.getLength();
-         String received = new String(data,0,datalen);
-
-         int first = received.indexOf(' ');
-         int last  = received.lastIndexOf(' ');
-         String mode = received.substring(0,first);
-         String input = received.substring(first+1,last);
-         String output = received.substring(last+1);
-
-         System.out.println("request received! Parameters are");
-         System.out.println("Mode: " + mode + " ");
-         System.out.println("Input file: \"" + input + "\"");
-         System.out.println("Output file: \"" + output  + "\"\n");
-
-         if ((new File(output)).exists()) {
-            System.out.println("Using cached version\n");
-         } else {
-            FileOutputStream fout = new FileOutputStream(output);
-            if (mode.equals("cic")) {
-               processor.setDocumentHandler(style2.getSAXSerializer(fout));
-               XSLTResultTarget content = new XSLTResultTarget(processor);
-               style1.process(new XSLTInputSource(input), content);
-            } else if (mode.equals("theory")) {
-               theory_processor.setDocumentHandler(
-                  theory_style2.getSAXSerializer(fout));
-               XSLTResultTarget content =
-                  new XSLTResultTarget(theory_processor);
-               theory_style1.process(new XSLTInputSource(input), content);
-            }
-         }
-
-         InetAddress address = InetAddress.getLocalHost();
-         DatagramSocket socket2 = new DatagramSocket();
-
-         byte buf[] = new byte[0];
-         DatagramPacket packet2 = new DatagramPacket(buf,0,address,port2);
-
-         socket2.send(packet2);
-      }
-   }
-}
-
-*/
diff --git a/helm/interface/xaland-java/rompi.class b/helm/interface/xaland-java/rompi.class
deleted file mode 100644
index 4abfe3865..000000000
Binary files a/helm/interface/xaland-java/rompi.class and /dev/null differ
diff --git a/helm/interface/xaland-java/rompi.java b/helm/interface/xaland-java/rompi.java
deleted file mode 100644
index 6a633dbc9..000000000
--- a/helm/interface/xaland-java/rompi.java
+++ /dev/null
@@ -1,12 +0,0 @@
-import java.net.*;
-
-public class rompi {
-   public static void main(String argv[]) throws java.io.IOException, java.net.MalformedURLException
-   {
-      /* Wait forever ;-) */
-      DatagramSocket socket2 = new DatagramSocket(12346);
-      DatagramPacket packet2 = new DatagramPacket(new byte[1],1);
-      System.out.println("Ho preso il socket e non lo lascio piu', caro pu, caro pu");
-      socket2.receive(packet2);
-   }
-}
diff --git a/helm/interface/xaland-java/sped.class b/helm/interface/xaland-java/sped.class
deleted file mode 100644
index cc6f53dac..000000000
Binary files a/helm/interface/xaland-java/sped.class and /dev/null differ
diff --git a/helm/interface/xaland-java/sped.java b/helm/interface/xaland-java/sped.java
deleted file mode 100644
index 9d96610d4..000000000
--- a/helm/interface/xaland-java/sped.java
+++ /dev/null
@@ -1,28 +0,0 @@
-import java.net.*;
-
-public class sped {
-   public static void main(String argv[]) throws java.io.IOException, java.net.MalformedURLException
-   {
-      String input = argv[0];
-      String out1  = argv[1];
-      String out2  = argv[2];
-
-      String sent = input + " " + out1 + " " + out2;
-      
-      InetAddress address = InetAddress.getLocalHost();
-      DatagramSocket socket = new DatagramSocket();
-
-      int strlen = sent.length();
-      byte buf[] = new byte[strlen];
-      sent.getBytes(0,strlen,buf,0);
-      DatagramPacket packet = new DatagramPacket(buf,strlen,address,12345);
-
-      socket.send(packet);
-
-
-      /* Wait for answer (or forever ;-) */
-      DatagramSocket socket2 = new DatagramSocket(12346);
-      DatagramPacket packet2 = new DatagramPacket(new byte[1],1);
-      socket2.receive(packet2);
-   }
-}
diff --git a/helm/interface/xaland-java/xaland.class b/helm/interface/xaland-java/xaland.class
deleted file mode 100644
index 6871fda4b..000000000
Binary files a/helm/interface/xaland-java/xaland.class and /dev/null differ
diff --git a/helm/interface/xaland-java/xaland.java b/helm/interface/xaland-java/xaland.java
deleted file mode 100644
index 9eda83124..000000000
--- a/helm/interface/xaland-java/xaland.java
+++ /dev/null
@@ -1,89 +0,0 @@
-import org.apache.xalan.xslt.*;
-import java.net.*;
-import java.io.*;
-
-public class xaland {
-   public static void Transform(StylesheetRoot style, String xmlSourceURL, String OutputURL) throws java.io.IOException, java.net.MalformedURLException, org.xml.sax.SAXException
-   {
-      XSLTInputSource xmlSource = new XSLTInputSource (xmlSourceURL);
-      XSLTResultTarget xmlResult = new XSLTResultTarget (OutputURL);
-      style.process(xmlSource, xmlResult);
-   }
-
-   public static void main(String argv[]) throws  java.io.IOException, java.net.MalformedURLException, org.xml.sax.SAXException
-   {
-      int port    = Integer.parseInt(argv[0]);
-      int port2   = Integer.parseInt(argv[1]);
-      String xsl1 = argv[2];
-      String xsl2 = argv[3];
-      String theory_xsl1 = argv[4];
-      String theory_xsl2 = argv[5];
-
-      XSLTProcessor theory_processor =
-       XSLTProcessorFactory.getProcessor(new org.apache.xalan.xpath.xdom.XercesLiaison());
-      StylesheetRoot theory_style1 =
-         theory_processor.processStylesheet(theory_xsl1);
-      theory_processor.reset();
-      StylesheetRoot theory_style2 =
-         theory_processor.processStylesheet(theory_xsl2);
-      theory_processor.setStylesheet(theory_style2);
-
-      XSLTProcessor processor =
-       XSLTProcessorFactory.getProcessor(new org.apache.xalan.xpath.xdom.XercesLiaison());
-      StylesheetRoot style1 = processor.processStylesheet(xsl1);
-      processor.reset();
-      StylesheetRoot style2 = processor.processStylesheet(xsl2);
-      processor.setStylesheet(style2);
-
-      DatagramSocket socket = new DatagramSocket(port);
-
-      System.out.println("Demon activated on input port " + port +
-       " and output port " + port2);
-      while(true) {
-         System.out.print("Ready...");
-
-         /* Warning: the packet must be a fresh one! */
-         DatagramPacket packet = new DatagramPacket(new byte[1024],1024);
-         socket.receive(packet);
-         byte data[] = packet.getData();
-         int datalen = packet.getLength();
-         String received = new String(data,0,datalen);
-
-         int first = received.indexOf(' ');
-         int last  = received.lastIndexOf(' ');
-         String mode = received.substring(0,first);
-         String input = received.substring(first+1,last);
-         String output = received.substring(last+1);
-
-         System.out.println("request received! Parameters are");
-         System.out.println("Mode: " + mode + " ");
-         System.out.println("Input file: \"" + input + "\"");
-         System.out.println("Output file: \"" + output  + "\"\n");
-
-         if ((new File(output)).exists()) {
-            System.out.println("Using cached version\n");
-         } else {
-            FileOutputStream fout = new FileOutputStream(output);
-            if (mode.equals("cic")) {
-               processor.setDocumentHandler(style2.getSAXSerializer(fout));
-               XSLTResultTarget content = new XSLTResultTarget(processor);
-               style1.process(new XSLTInputSource(input), content);
-            } else if (mode.equals("theory")) {
-               theory_processor.setDocumentHandler(
-                  theory_style2.getSAXSerializer(fout));
-               XSLTResultTarget content =
-                  new XSLTResultTarget(theory_processor);
-               theory_style1.process(new XSLTInputSource(input), content);
-            }
-         }
-
-         InetAddress address = InetAddress.getLocalHost();
-         DatagramSocket socket2 = new DatagramSocket();
-
-         byte buf[] = new byte[0];
-         DatagramPacket packet2 = new DatagramPacket(buf,0,address,port2);
-
-         socket2.send(packet2);
-      }
-   }
-}
diff --git a/helm/interface/xaland-java/xaland.java.prima_del_loro_baco b/helm/interface/xaland-java/xaland.java.prima_del_loro_baco
deleted file mode 100644
index b46ffa6aa..000000000
--- a/helm/interface/xaland-java/xaland.java.prima_del_loro_baco
+++ /dev/null
@@ -1,85 +0,0 @@
-import org.apache.xalan.xslt.*;
-import java.net.*;
-import java.io.*;
-
-public class xaland {
-   public static void Transform(StylesheetRoot style, String xmlSourceURL, String OutputURL) throws java.io.IOException, java.net.MalformedURLException, org.xml.sax.SAXException
-   {
-      XSLTInputSource xmlSource = new XSLTInputSource (xmlSourceURL);
-      XSLTResultTarget xmlResult = new XSLTResultTarget (OutputURL);
-      style.process(xmlSource, xmlResult);
-   }
-
-   public static void main(String argv[]) throws  java.io.IOException, java.net.MalformedURLException, org.xml.sax.SAXException
-   {
-      int port    = Integer.parseInt(argv[0]);
-      int port2   = Integer.parseInt(argv[1]);
-      String xsl1 = argv[2];
-      String xsl2 = argv[3];
-      String theory_xsl1 = argv[4];
-      String theory_xsl2 = argv[5];
-
-      XSLTProcessor theory_processor = XSLTProcessorFactory.getProcessor();
-      StylesheetRoot theory_style1 =
-         theory_processor.processStylesheet(theory_xsl1);
-      StylesheetRoot theory_style2 =
-         theory_processor.processStylesheet(theory_xsl2);
-      theory_processor.setStylesheet(theory_style2);
-
-      XSLTProcessor processor = XSLTProcessorFactory.getProcessor();
-      StylesheetRoot style1 = processor.processStylesheet(xsl1);
-      StylesheetRoot style2 = processor.processStylesheet(xsl2);
-      processor.setStylesheet(style2);
-
-      DatagramSocket socket = new DatagramSocket(port);
-
-      System.out.println("Demon activated on input port " + port +
-       " and output port " + port2);
-      while(true) {
-         System.out.print("Ready...");
-
-         /* Warning: the packet must be a fresh one! */
-         DatagramPacket packet = new DatagramPacket(new byte[1024],1024);
-         socket.receive(packet);
-         byte data[] = packet.getData();
-         int datalen = packet.getLength();
-         String received = new String(data,0,datalen);
-
-         int first = received.indexOf(' ');
-         int last  = received.lastIndexOf(' ');
-         String mode = received.substring(0,first);
-         String input = received.substring(first+1,last);
-         String output = received.substring(last+1);
-
-         System.out.println("request received! Parameters are");
-         System.out.println("Mode: " + mode + " ");
-         System.out.println("Input file: \"" + input + "\"");
-         System.out.println("Output file: \"" + output  + "\"\n");
-
-         if ((new File(output)).exists()) {
-            System.out.println("Using cached version\n");
-         } else {
-            FileOutputStream fout = new FileOutputStream(output);
-            if (mode.equals("cic")) {
-               processor.setDocumentHandler(style2.getSAXSerializer(fout));
-               XSLTResultTarget content = new XSLTResultTarget(processor);
-               style1.process(new XSLTInputSource(input), content);
-            } else if (mode.equals("theory")) {
-               theory_processor.setDocumentHandler(
-                  theory_style2.getSAXSerializer(fout));
-               XSLTResultTarget content =
-                  new XSLTResultTarget(theory_processor);
-               theory_style1.process(new XSLTInputSource(input), content);
-            }
-         }
-
-         InetAddress address = InetAddress.getLocalHost();
-         DatagramSocket socket2 = new DatagramSocket();
-
-         byte buf[] = new byte[0];
-         DatagramPacket packet2 = new DatagramPacket(buf,0,address,port2);
-
-         socket2.send(packet2);
-      }
-   }
-}
diff --git a/helm/interface/xaland-java/xaland.java.prima_del_loro_baco_ma_dopo_i_reset b/helm/interface/xaland-java/xaland.java.prima_del_loro_baco_ma_dopo_i_reset
deleted file mode 100644
index 1467cdd2e..000000000
--- a/helm/interface/xaland-java/xaland.java.prima_del_loro_baco_ma_dopo_i_reset
+++ /dev/null
@@ -1,87 +0,0 @@
-import org.apache.xalan.xslt.*;
-import java.net.*;
-import java.io.*;
-
-public class xaland {
-   public static void Transform(StylesheetRoot style, String xmlSourceURL, String OutputURL) throws java.io.IOException, java.net.MalformedURLException, org.xml.sax.SAXException
-   {
-      XSLTInputSource xmlSource = new XSLTInputSource (xmlSourceURL);
-      XSLTResultTarget xmlResult = new XSLTResultTarget (OutputURL);
-      style.process(xmlSource, xmlResult);
-   }
-
-   public static void main(String argv[]) throws  java.io.IOException, java.net.MalformedURLException, org.xml.sax.SAXException
-   {
-      int port    = Integer.parseInt(argv[0]);
-      int port2   = Integer.parseInt(argv[1]);
-      String xsl1 = argv[2];
-      String xsl2 = argv[3];
-      String theory_xsl1 = argv[4];
-      String theory_xsl2 = argv[5];
-
-      XSLTProcessor theory_processor = XSLTProcessorFactory.getProcessor();
-      StylesheetRoot theory_style1 =
-         theory_processor.processStylesheet(theory_xsl1);
-      theory_processor.reset();
-      StylesheetRoot theory_style2 =
-         theory_processor.processStylesheet(theory_xsl2);
-      theory_processor.setStylesheet(theory_style2);
-
-      XSLTProcessor processor = XSLTProcessorFactory.getProcessor();
-      StylesheetRoot style1 = processor.processStylesheet(xsl1);
-      processor.reset();
-      StylesheetRoot style2 = processor.processStylesheet(xsl2);
-      processor.setStylesheet(style2);
-
-      DatagramSocket socket = new DatagramSocket(port);
-
-      System.out.println("Demon activated on input port " + port +
-       " and output port " + port2);
-      while(true) {
-         System.out.print("Ready...");
-
-         /* Warning: the packet must be a fresh one! */
-         DatagramPacket packet = new DatagramPacket(new byte[1024],1024);
-         socket.receive(packet);
-         byte data[] = packet.getData();
-         int datalen = packet.getLength();
-         String received = new String(data,0,datalen);
-
-         int first = received.indexOf(' ');
-         int last  = received.lastIndexOf(' ');
-         String mode = received.substring(0,first);
-         String input = received.substring(first+1,last);
-         String output = received.substring(last+1);
-
-         System.out.println("request received! Parameters are");
-         System.out.println("Mode: " + mode + " ");
-         System.out.println("Input file: \"" + input + "\"");
-         System.out.println("Output file: \"" + output  + "\"\n");
-
-         if ((new File(output)).exists()) {
-            System.out.println("Using cached version\n");
-         } else {
-            FileOutputStream fout = new FileOutputStream(output);
-            if (mode.equals("cic")) {
-               processor.setDocumentHandler(style2.getSAXSerializer(fout));
-               XSLTResultTarget content = new XSLTResultTarget(processor);
-               style1.process(new XSLTInputSource(input), content);
-            } else if (mode.equals("theory")) {
-               theory_processor.setDocumentHandler(
-                  theory_style2.getSAXSerializer(fout));
-               XSLTResultTarget content =
-                  new XSLTResultTarget(theory_processor);
-               theory_style1.process(new XSLTInputSource(input), content);
-            }
-         }
-
-         InetAddress address = InetAddress.getLocalHost();
-         DatagramSocket socket2 = new DatagramSocket();
-
-         byte buf[] = new byte[0];
-         DatagramPacket packet2 = new DatagramPacket(buf,0,address,port2);
-
-         socket2.send(packet2);
-      }
-   }
-}
diff --git a/helm/interface/xaland.class b/helm/interface/xaland.class
deleted file mode 100644
index 6871fda4b..000000000
Binary files a/helm/interface/xaland.class and /dev/null differ
diff --git a/helm/interface/xml.ml b/helm/interface/xml.ml
deleted file mode 100644
index 5cb3dbd06..000000000
--- a/helm/interface/xml.ml
+++ /dev/null
@@ -1,72 +0,0 @@
-(******************************************************************************)
-(*                                                                            *)
-(*                               PROJECT HELM                                 *)
-(*                                                                            *)
-(*                     A tactic to print Coq objects in XML                   *)
-(*                                                                            *)
-(*                Claudio Sacerdoti Coen <sacerdot@cs.unibo.it>               *)
-(*                                 18/10/2000                                 *)
-(*                                                                            *)
-(* This module defines a pretty-printer and the stream of commands to the pp  *)
-(*                                                                            *)
-(******************************************************************************)
-
-
-(* the type token for XML cdata, empty elements and not-empty elements *)
-(* Usage:                                                                *)
-(*  Str cdata                                                            *)
-(*  Empty (element_name, [attrname1, value1 ; ... ; attrnamen, valuen]   *)
-(*  NEmpty (element_name, [attrname1, value2 ; ... ; attrnamen, valuen], *)
-(*          content                                                      *)
-type token = Str of string
-           | Empty of string * (string * string) list
-	   | NEmpty of string * (string * string) list * token Stream.t
-;;
-
-(* currified versions of the constructors make the code more readable *)
-let xml_empty name attrs = [< 'Empty(name,attrs) >]
-let xml_nempty name attrs content = [< 'NEmpty(name,attrs,content) >]
-let xml_cdata str = [< 'Str str >]
-
-(* Usage:                                                                   *)
-(*  pp tokens None     pretty prints the output on stdout                   *)
-(*  pp tokens (Some filename) pretty prints the output on the file filename *)
-let pp strm fn =
- let channel = ref stdout in
- let rec pp_r m =
-  parser
-    [< 'Str a ; s >] ->
-      print_spaces m ;
-      fprint_string (a ^ "\n") ;
-      pp_r m s
-  | [< 'Empty(n,l) ; s >] ->
-      print_spaces m ;
-      fprint_string ("<" ^ n) ;
-      List.iter (function (n,v) -> fprint_string (" " ^ n ^ "=\"" ^ v ^ "\"")) l;
-      fprint_string "/>\n" ;
-      pp_r m s
-  | [< 'NEmpty(n,l,c) ; s >] ->
-      print_spaces m ;
-      fprint_string ("<" ^ n) ;
-      List.iter (function (n,v) -> fprint_string (" " ^ n ^ "=\"" ^ v ^ "\"")) l;
-      fprint_string ">\n" ;
-      pp_r (m+1) c ;
-      print_spaces m ;
-      fprint_string ("</" ^ n ^ ">\n") ;
-      pp_r m s
-  | [< >] -> ()
- and print_spaces m =
-  for i = 1 to m do fprint_string "  " done
- and fprint_string str =
-  output_string !channel str
- in
-  match fn with
-     Some filename ->
-       channel := open_out filename ;
-       pp_r 0 strm ;
-       close_out !channel ;
-       print_string ("\nWriting on file \"" ^ filename ^ "\" was succesfull\n");
-       flush stdout
-   | None ->
-       pp_r 0 strm
-;;
diff --git a/helm/interface/xml.mli b/helm/interface/xml.mli
deleted file mode 100644
index a82c582f6..000000000
--- a/helm/interface/xml.mli
+++ /dev/null
@@ -1,35 +0,0 @@
-(******************************************************************************)
-(*                                                                            *)
-(*                               PROJECT HELM                                 *)
-(*                                                                            *)
-(*                     A tactic to print Coq objects in XML                   *)
-(*                                                                            *)
-(*                Claudio Sacerdoti Coen <sacerdot@cs.unibo.it>               *)
-(*                                 18/10/2000                                 *)
-(*                                                                            *)
-(* This module defines a pretty-printer and the stream of commands to the pp  *)
-(*                                                                            *)
-(******************************************************************************)
-
-(* Tokens for XML cdata, empty elements and not-empty elements           *)
-(* Usage:                                                                *)
-(*  Str cdata                                                            *)
-(*  Empty (element_name, [attrname1, value1 ; ... ; attrnamen, valuen]   *)
-(*  NEmpty (element_name, [attrname1, value2 ; ... ; attrnamen, valuen], *)
-(*          content                                                      *)
-type token =
-  | Str of string
-  | Empty of string * (string * string) list
-  | NEmpty of string * (string * string) list * token Stream.t
-
-(* currified versions of the token constructors make the code more readable *)
-val xml_empty : string -> (string * string) list -> token Stream.t
-val xml_nempty :
-  string -> (string * string) list -> token Stream.t -> token Stream.t
-val xml_cdata : string -> token Stream.t
-
-(* The pretty printer for streams of token                                  *)
-(* Usage:                                                                   *)
-(*  pp tokens None     pretty prints the output on stdout                   *)
-(*  pp tokens (Some filename) pretty prints the output on the file filename *)
-val pp : token Stream.t -> string option -> unit
diff --git a/helm/interface/xsltProcessor.ml b/helm/interface/xsltProcessor.ml
deleted file mode 100644
index c82a8f5f8..000000000
--- a/helm/interface/xsltProcessor.ml
+++ /dev/null
@@ -1,64 +0,0 @@
-exception XsltProcessorCouldNotSend;;
-exception XsltProcessorCouldNotReceive;;
-
-let portserver = 12345;;
-let portclient = 12346;;
-let time_to_wait = 10;;
-
-let rec process uri usecache mode =
- let module U = Unix in
-  let uri = UriManager.string_of_uri uri in
-  let pid = string_of_int (U.getpid ())
-  and filename' =
-   let uri' = Str.replace_first (Str.regexp ".*:") "" uri in
-    Str.global_replace (Str.regexp "/") "_"
-     (Str.global_replace (Str.regexp "_") "__" uri')
-  in let tmpfile = "/tmp/helm_" ^ filename' ^ "_" ^ pid in
-   (* test if the cache can be used *)
-   let tmp_file_exists = Sys.file_exists tmpfile in
-    if usecache && tmp_file_exists then
-     tmpfile
-    else
-     let url = Configuration.getter_url ^ uri in
-      (* purge the cache if asked to *)
-      if not usecache && tmp_file_exists then
-        Sys.remove tmpfile ;
-      let string_to_send = mode ^ " " ^ url ^ " " ^ tmpfile in
-      (* next function is for looping in case the server is not responding *)
-      let rec contact_server () =
-       let socketclient = U.socket U.PF_INET U.SOCK_DGRAM 0
-       and socketserver = U.socket U.PF_INET U.SOCK_DGRAM 0 in
-        let bounded = ref false in
-         while not !bounded do
-          try
-           U.bind socketclient (U.ADDR_INET(U.inet_addr_any,portclient)) ;
-           bounded := true
-          with _ ->
-           print_endline "Port unavailable. Retrying..." ; flush stdout ;
-           U.sleep 5  (* wait hoping the inetaddr is released *)
-         done ;
-         let n =
-          U.sendto socketserver string_to_send 0 (String.length string_to_send)
-           [] (U.ADDR_INET(U.inet_addr_any,portserver))
-         in
-          if n = -1 then raise XsltProcessorCouldNotSend ;
-          U.close socketserver ;
-          let process_signal _ = U.close socketclient in
-          Sys.set_signal Sys.sigalrm (Sys.Signal_handle process_signal) ;
-          (* if the server does not respond, repeat the query *)
-          ignore (U.alarm time_to_wait) ;
-          try
-           if U.recv socketclient "" 0 0 [] = -1 then
-            raise XsltProcessorCouldNotReceive ;
-           ignore (U.alarm 0) ; (* stop the bomb *)
-           Sys.set_signal Sys.sigalrm Sys.Signal_default ;
-           U.close socketclient ;
-           tmpfile
-          with
-           U.Unix_error(_,"recv",_) ->
-            print_endline "Xaland server not responding. Retrying..." ;
-            flush stdout;
-            contact_server ()
-        in
-         contact_server ()
-;;
diff --git a/helm/style/annotatedcont.xsl b/helm/style/annotatedcont.xsl
deleted file mode 100644
index e97d08f2b..000000000
--- a/helm/style/annotatedcont.xsl
+++ /dev/null
@@ -1,73 +0,0 @@
-<?xml version="1.0"?>
-
-<!--***********************************************************************--> 
-<!-- XSLT version 0.1 of annotated MathML content to MathML presentation:  -->
-<!-- First draft: March 29 2000, Claudio Sacerdoti Coen, Irene Schena      -->
-<!--***********************************************************************--> 
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML"
-                              xmlns:helm="http://www.cs.unibo.it/helm">
-
-<xsl:import href="objcontent.xsl"/>
-
-<xsl:key name="id" use="@id" match="LAMBDA|PROD|CAST|REL|SORT|APPLY|VAR|META|CONST|MUTIND|MUTCONSTRUCT|MUTCASE|FIX|COFIX|Definition|Axiom|CurrentProof|InductiveDefinition|Variable"/>
-
-<xsl:key name="annid" use="@of" match="Annotation"/>
-
-<xsl:template match="Definition|Axiom|CurrentProof|InductiveDefinition|Variable">
-    <xsl:choose>
-    <xsl:when test="key('annid',@id)">
-     <annotation helm:xref="{@id}">
-      <xsl:apply-templates select="key('annid',@id)"/>
-     </annotation>
-    </xsl:when>
-    <xsl:otherwise>
-     <xsl:apply-templates select="." mode="noannot"/>
-    </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<xsl:template match="LAMBDA|PROD|CAST|REL|SORT|APPLY|VAR|META|CONST|MUTIND|MUTCONSTRUCT|MUTCASE|FIX|COFIX">
-    <xsl:choose>
-    <xsl:when test="key('annid',@id)">
-     <annotation helm:xref="{@id}">
-      <xsl:apply-templates select="key('annid',@id)"/>
-     </annotation>
-    </xsl:when>
-    <xsl:otherwise>
-     <m:math>
-      <xsl:apply-templates select="." mode="noannot"/>
-     </m:math>
-    </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<xsl:template match="node">
- <xsl:variable name="id" select="@id"/>
- <xsl:apply-templates select="key('id',$id)"/>
-</xsl:template>
-
-<xsl:template match="attribute">
- <xsl:variable name="id" select="@id"/>
- <xsl:variable name="name" select="@name"/>
- <xsl:variable name="child" select="@child"/>
- <xsl:variable name="grandchild" select="@grandchild"/>
- <xsl:choose>
-  <xsl:when test="$child">
-   <xsl:choose>
-    <xsl:when test="$grandchild">
-     <xsl:value-of select="key('id',$id)/*[position() = $child]/*[position() = $grandchild]/attribute::*[name() = $name]"/>
-    </xsl:when>
-    <xsl:otherwise>
-     <xsl:value-of select="key('id',$id)/*[position() = $child]/attribute::*[name() = $name]"/>
-    </xsl:otherwise>
-   </xsl:choose>
-  </xsl:when>
-  <xsl:otherwise>
-   <xsl:value-of select="key('id',$id)/attribute::*[name() = $name]"/>
-  </xsl:otherwise>
- </xsl:choose>
-</xsl:template>
-
-</xsl:stylesheet>
diff --git a/helm/style/annotatedcont.xsl.csc b/helm/style/annotatedcont.xsl.csc
deleted file mode 100644
index 3508d6be4..000000000
--- a/helm/style/annotatedcont.xsl.csc
+++ /dev/null
@@ -1,66 +0,0 @@
-<?xml version="1.0"?>
-
-<!--***********************************************************************--> 
-<!-- XSLT version 0.1 of annotated MathML content to MathML presentation:  -->
-<!-- First draft: March 29 2000, Claudio Sacerdoti Coen, Irene Schena      -->
-<!--***********************************************************************--> 
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML">
-
-<xsl:import href="objcontent.xsl"/>
-
-<xsl:template match="Definition|Axiom|CurrentProof|InductiveDefinition|Variable">
-    <xsl:choose>
-    <xsl:when test="'annotation' != name(*[1])">
-     <xsl:apply-templates select="." mode="noannot"/>
-    </xsl:when>
-    <xsl:otherwise>
-     <annotation>
-      <xsl:apply-templates select="annotation"/>
-     </annotation>
-    </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<xsl:template match="LAMBDA|PROD|CAST|REL|SORT|APPLY|VAR|META|CONST|MUTIND|MUTCONSTRUCT|MUTCASE|FIX|COFIX">
-  <xsl:param name="backpointer" select="''"/>
-    <xsl:choose>
-    <xsl:when test="'Annotation' != name(*[1])">
-     <m:math>
-      <xsl:apply-templates select="." mode="noannot">
-       <xsl:with-param name="backpointer" select="$backpointer"/>
-      </xsl:apply-templates>
-     </m:math>
-    </xsl:when>
-    <xsl:otherwise>
-     <annotation>
-      <xsl:apply-templates select="Annotation"/>
-     </annotation>
-    </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<!-- DA MODIFICARE PER GESTIRE I RIFERIMENTI A SOTTOANNOTAZIONI O NODI MATH -->
-
-<xsl:template match="nephew">
- <xsl:variable name="select" select="@no"/>
- <xsl:apply-templates select="../../*[2]/*[number($select)]"/>
-</xsl:template>
-
-<xsl:template match="brother">
- <xsl:variable name="select" select="@no"/>
- <xsl:apply-templates select="../../*[number($select) + 1]"/>
-</xsl:template>
-
-<xsl:template match="name">
- <xsl:value-of select="../../*[2]/@name"/>
-</xsl:template>
-
-<xsl:template match="nephew-name">
- <xsl:variable name="select" select="@no"/>
- <xsl:value-of select="../../*[2]/*[number($select)]/@name"/>
-</xsl:template>
-
-</xsl:stylesheet>
-
diff --git a/helm/style/annotatedpres.xsl b/helm/style/annotatedpres.xsl
deleted file mode 100644
index 511f915f5..000000000
--- a/helm/style/annotatedpres.xsl
+++ /dev/null
@@ -1,34 +0,0 @@
-<?xml version="1.0"?>
-
-<!--***********************************************************************--> 
-<!-- XSLT version 0.1 of annotated MathML content to MathML presentation:  -->
-<!-- First draft: March 29 2000, Claudio Sacerdoti Coen, Irene Schena      -->
-<!--***********************************************************************--> 
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML"
-                              xmlns:helm="http://www.cs.unibo.it/helm">
-
-<xsl:import href="mmlextension.xsl"/>
-
-<!-- ANNOTATION -->
-
-<xsl:template match="annotation">
-    <xsl:choose>
-    <xsl:when test=". = /">
-      <m:math><m:mrow helm:xref="{@helm:xref}"><xsl:apply-templates/></m:mrow></m:math>
-    </xsl:when>
-    <xsl:otherwise>
-     <m:mrow helm:xref="{@helm:xref}"><xsl:apply-templates/></m:mrow>
-    </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<xsl:template match="text()">
- <xsl:variable name="text" select="normalize-space(.)"/>
- <xsl:if test="$text != ''">
-  <m:mtext><xsl:value-of select="$text"/></m:mtext>
- </xsl:if>
-</xsl:template>
-
-</xsl:stylesheet> 
diff --git a/helm/style/basic.xsl b/helm/style/basic.xsl
deleted file mode 100644
index 93eb28052..000000000
--- a/helm/style/basic.xsl
+++ /dev/null
@@ -1,253 +0,0 @@
-<?xml version="1.0"?>
-
-<!--******************************************************************--> 
-<!-- Basic Logic                                                      -->
-<!-- First draft: April 3 2000                                        -->
-<!-- HELM Group: Asperti, Padovani, Sacerdoti, Schena                 -->
-<!--******************************************************************-->
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML"
-                              xmlns:helm="http://www.cs.unibo.it/helm">
-
-<!--******************************************************************-->
-<!-- Variable containing the absolute path of the CIC file            -->
-<!--******************************************************************-->
-
-<xsl:variable name="absPath">http://localhost:8081/get?url=</xsl:variable>
-
-<!-- ************************* LOGIC *********************************-->
-
-<!-- AND -->
-
-<xsl:template match="APPLY[MUTIND[attribute::uri='cic:/coq/INIT/Logic/Conjunction/and.ind'] and (count(child::*) = 3)]" mode="pure">
-    <m:apply helm:xref="{@id}">
-    <m:and definitionURL="{MUTIND/@uri}" helm:xref="{MUTIND/@id}"/>
-     <xsl:apply-templates select="*[2]" mode="noannot"/>
-     <xsl:apply-templates select="*[3]" mode="noannot"/>
-    </m:apply>
-</xsl:template>
-
-<!-- OR -->
-
-<xsl:template match="APPLY[MUTIND[attribute::uri='cic:/coq/INIT/Logic/Disjunction/or.ind'] and (count(child::*) = 3)]" mode="pure">
-    <m:apply helm:xref="{@id}">
-    <m:or definitionURL="{MUTIND/@uri}" helm:xref="{MUTIND/@id}"/>
-     <xsl:apply-templates select="*[2]" mode="noannot"/>
-     <xsl:apply-templates select="*[3]" mode="noannot"/>
-    </m:apply>
-</xsl:template>
-
-<!-- NOT -->
-
-<xsl:template match="APPLY[CONST[attribute::uri='cic:/coq/INIT/Logic/not.con'] and (count(child::*) = 2)]" mode="pure">
-    <m:apply helm:xref="{@id}">
-    <m:not definitionURL="{CONST/@uri}" helm:xref="{MUTIND/@id}"/>
-     <xsl:apply-templates select="*[2]" mode="noannot"/>
-    </m:apply>
-</xsl:template>
-
-<!-- IFF -->
-<!--
-<xsl:template match="APPLY[CONST[attribute::uri='cic:/coq/INIT/Logic/Equivalence/iff.ind'] and (count(child::*) = 3)]" mode="pure">
-    <m:apply helm:xref="{@id}">
-    <m:iff definitionURL="{CONST/@uri}" helm:xref="{CONST/@id}"/>
-     <xsl:apply-templates select="*[2]" mode="noannot"/>
-     <xsl:apply-templates select="*[3]" mode="noannot"/>
-    </m:apply>
-</xsl:template>
--->
-
-<!-- EXISTS -->
-
-<xsl:template match="APPLY[MUTIND[attribute::uri='cic:/coq/INIT/Logic/First_order_quantifiers/ex.ind' or attribute::uri='cic:/coq/INIT/Logic_Type/exT.ind'] and (count(child::*) = 3)]" mode="pure">
-    <m:apply helm:xref="{@id}">
-     <m:exists definitionURL="{MUTIND/@uri}" helm:xref="{MUTIND/@id}"/>
-     <xsl:choose>
-      <xsl:when test="name(*[3]) = 'LAMBDA'">
-       <m:bvar>
-        <m:ci><xsl:value-of select="LAMBDA/target/@binder"/></m:ci>
-       </m:bvar>
-       <xsl:apply-templates select="LAMBDA/target" mode="noannot"/>
-      </xsl:when>
-      <xsl:otherwise>
-       <m:bvar>
-        <m:ci>$x</m:ci>
-       </m:bvar>
-       <m:apply>
-        <m:csymbol>app</m:csymbol>
-        <xsl:apply-templates select="*[3]" mode="noannot"/>
-        <m:ci>$x</m:ci>
-       </m:apply>
-      </xsl:otherwise>
-     </xsl:choose>
-    </m:apply>
-</xsl:template>
-
-<xsl:template match="APPLY[MUTIND[attribute::uri='cic:/coq/INIT/Logic/First_order_quantifiers/ex2.ind' or attribute::uri='cic:/coq/INIT/Logic_Type/exT2.ind'] and (count(child::*) = 4)]" mode="pure">
-    <m:apply helm:xref="{@id}">
-    <m:exists definitionURL="{MUTIND/@uri}" helm:xref="{MUTIND/@id}"/>
-     <xsl:choose>
-      <xsl:when test="name(*[3]) = 'LAMBDA'">
-       <xsl:variable name="bvarname" select="*[3]/target/@binder"/>
-       <m:bvar>
-        <m:ci><xsl:value-of select="$bvarname"/></m:ci>
-       </m:bvar>
-       <m:condition>
-        <xsl:apply-templates select="LAMBDA[1]/target" mode="noannot"/>
-       </m:condition>
-       <xsl:choose>
-        <xsl:when test="(name(*[4]) = 'LAMBDA') and 
-           ($bvarname = *[4]/target/@binder)">
-         <xsl:apply-templates select="LAMBDA[2]/target" mode="noannot"/>
-        </xsl:when>
-        <xsl:otherwise>
-         <m:apply>
-          <m:csymbol>app</m:csymbol>
-          <xsl:apply-templates select="*[4]" mode="noannot"/>
-          <m:ci><xsl:value-of select="$bvarname"/></m:ci>
-         </m:apply>
-        </xsl:otherwise>
-       </xsl:choose>
-      </xsl:when>
-      <xsl:otherwise>
-       <xsl:choose>
-        <xsl:when test="name(*[4]) = 'LAMBDA'">
-         <xsl:variable name="bvarname" select="*[4]/target/@binder"/>
-         <m:bvar>
-          <m:ci><xsl:value-of select="$bvarname"/></m:ci>
-         </m:bvar>
-         <m:condition>
-          <m:apply>
-           <m:csymbol>app</m:csymbol>
-           <xsl:apply-templates select="*[3]" mode="noannot"/>
-           <m:ci><xsl:value-of select="$bvarname"/></m:ci>
-          </m:apply>
-         </m:condition>
-         <xsl:apply-templates select="*[4]/target" mode="noannot"/>
-        </xsl:when>
-        <xsl:otherwise>
-         <m:bvar>
-          <m:ci>x</m:ci>
-         </m:bvar>
-         <m:condition>
-          <m:apply>
-           <m:csymbol>app</m:csymbol>
-           <xsl:apply-templates select="*[3]" mode="noannot"/>
-           <m:ci>x</m:ci>
-          </m:apply>
-         </m:condition>
-         <m:apply>
-          <m:csymbol>app</m:csymbol>
-          <xsl:apply-templates select="*[4]" mode="noannot"/>
-          <m:ci>x</m:ci>
-         </m:apply>
-        </xsl:otherwise>
-       </xsl:choose>
-      </xsl:otherwise>
-     </xsl:choose>
-    </m:apply>
-</xsl:template>
-
-<!-- EQUALITY -->
-
-<xsl:template match="APPLY[MUTIND[attribute::uri='cic:/coq/INIT/Logic/Equality/eq.ind'] and (count(child::*) = 4)]" mode="pure">
-    <m:apply helm:xref="{@id}">
-    <m:eq definitionURL="{MUTIND/@uri}" helm:xref="{MUTIND/@id}"/>
-     <xsl:apply-templates select="*[3]" mode="noannot"/>
-     <xsl:apply-templates select="*[4]" mode="noannot"/>
-    </m:apply>
-</xsl:template>
-
-
-<!-- TYPE EQUALITY -->
-
-<xsl:template match="APPLY[MUTIND[attribute::uri='cic:/coq/INIT/Logic_Type/eqT.ind'] and (count(child::*) = 4)]" mode="pure">
-    <m:apply helm:xref="{@id}">
-    <m:eq definitionURL="{MUTIND/@uri}" helm:xref="{MUTIND/@id}"/>
-     <xsl:apply-templates select="*[3]" mode="noannot"/>
-     <xsl:apply-templates select="*[4]" mode="noannot"/>
-    </m:apply>
-</xsl:template>
-
-<!-- NOT-EQ -->
-<!-- NOT and EQ have no parameters -->
-<xsl:template match="APPLY[CONST[attribute::uri='cic:/coq/INIT/Logic/not.con']
-and (count(child::*) = 2) and APPLY[MUTIND[attribute::uri='cic:/coq/INIT/Logic/Equality/eq.ind']]]" mode="pure">
-    <xsl:choose>
-     <xsl:when test="count(APPLY/child::*) = 4">
-      <m:apply helm:xref="{@id}">
-       <m:neq/>
-       <xsl:apply-templates select="*[2]/*[3]" mode="noannot"/>
-       <xsl:apply-templates select="*[2]/*[4]" mode="set"/>  
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<!-- NOT-EQT -->
-<xsl:template match="APPLY[CONST[attribute::uri='cic:/coq/INIT/Logic/not.con']
-and (count(child::*) = 2) and APPLY[MUTIND[attribute::uri='cic:/coq/INIT/Logic_Type/eqT.ind']]]" mode="pure">
-    <xsl:choose>
-     <xsl:when test="count(APPLY/child::*) = 4">
-      <m:apply helm:xref="{@id}">
-       <m:neq/>
-       <xsl:apply-templates select="*[2]/*[3]" mode="noannot"/>
-       <xsl:apply-templates select="*[2]/*[4]" mode="set"/>  
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<!-- ************************ DATATYPES ******************************* -->
-
-<!-- no datatypes in MathML content -->
-
-
-<!-- *************************** PEANO ********************************* -->
-
-<xsl:template match="APPLY[MUTIND[attribute::uri='cic:/coq/INIT/Peano/le.ind'] and (count(child::*) = 3)]" mode="pure">
-    <m:apply helm:xref="{@id}">
-    <m:leq definitionURL="{MUTIND/@uri}" helm:xref="{MUTIND/@id}"/>
-     <xsl:apply-templates select="*[2]" mode="noannot"/>
-     <xsl:apply-templates select="*[3]" mode="noannot"/>
-    </m:apply>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST[attribute::uri='cic:/coq/INIT/Peano/lt.con'] and (count(child::*) = 3)]" mode="pure">
-    <m:apply helm:xref="{@id}">
-    <m:lt definitionURL="{CONST/@uri}" helm:xref="{CONST/@id}"/>
-     <xsl:apply-templates select="*[2]" mode="noannot"/>
-     <xsl:apply-templates select="*[3]" mode="noannot"/>
-    </m:apply>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST[attribute::uri='cic:/coq/INIT/Peano/ge.con'] and (count(child::*) = 3)]" mode="pure">
-    <m:apply helm:xref="{@id}">
-    <m:geq definitionURL="{CONST/@uri}" helm:xref="{CONST/@id}"/>
-     <xsl:apply-templates select="*[2]" mode="noannot"/>
-     <xsl:apply-templates select="*[3]" mode="noannot"/>
-    </m:apply>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST[attribute::uri='cic:/coq/INIT/Peano/gt.con'] and (count(child::*) = 3)]" mode="pure">
-    <m:apply helm:xref="{@id}">
-    <m:gt definitionURL="{CONST/@uri}" helm:xref="{CONST/@id}"/>
-     <xsl:apply-templates select="*[2]" mode="noannot"/>
-     <xsl:apply-templates select="*[3]" mode="noannot"/>
-    </m:apply>
-</xsl:template>
-
-</xsl:stylesheet>
-
-
-
-
-
-
diff --git a/helm/style/content.xsl b/helm/style/content.xsl
deleted file mode 100644
index ae4a1a812..000000000
--- a/helm/style/content.xsl
+++ /dev/null
@@ -1,274 +0,0 @@
-<?xml version="1.0"?>
-
-<!--******************************************************************--> 
-<!-- XSLT version 0.1 of CIC objects to MathML content:               -->
-<!-- First draft: February 14 2000, Andrea Asperti, Irene Schena      -->
-<!-- Revised: March 3 2000, Irene Schena                              -->
-<!-- Revised: March 10 2000, Irene Schena                             -->
-<!-- Revised: March 15 2000, Claudio Sacerdoti Coen, Irene Schena     -->
-<!--******************************************************************-->
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML"
-                              xmlns:helm="http://www.cs.unibo.it/helm">
-
-<xsl:include href="params.xsl"/>
-
-<!--<xsl:output
-           method="xml" 
-           version="1.0" 
-           encoding="ISO-8859-1" 
-           omit-xml-declaration="no"
-           standalone="no" 
-           doctype-public="http://www.w3.org/TR/REC-MathML" 
-           indent="yes"
-           media-type="text/mathml" /> -->
-
-<!-- DA FARE: 
-1)risolvere nella fase di pre-processing le uri relative, settando l'attributo
-definitionURL dell'oggetto corrispondente (alcuni punteranno a nulla! -quelli 
-che non hanno il file di definizione corrispondente-); [le uri assolute hanno
-la forma cic:/.../ in definitionURL e questo schema di uri verra' risolto da
-Amaya o da chi di dovere in /really_very_local/helm/PARSER/example/.../]
-2)aggiungere nei file xml gli ID, affinche' nello stylesheet si setti
-l'attributo xref di ogni oggetto per puntare (tramite ID) al suo corrispondente
-della rappresentazione interna. 
--->
-
-<!--******************************************************************-->
-<!-- Variable containing the absolute path of the CIC file            -->
-<!--******************************************************************-->
-
-<xsl:variable name="absPath">http://localhost:8081/get?url=</xsl:variable>
-
-<!-- CIC TERMS -->
-
-<xsl:template match="LAMBDA" mode="pure">
-    <m:lambda helm:xref="{@id}">
-     <m:bvar>
-      <m:ci>
-       <xsl:value-of select="target/@binder"/>
-      </m:ci>
-      <m:type>
-       <xsl:apply-templates select="source/*[1]" mode="noannot"/>
-      </m:type>
-     </m:bvar>
-     <xsl:apply-templates select="target/*[1]" mode="noannot"/>
-    </m:lambda>
-</xsl:template>
-
-<xsl:template match="PROD" mode="pure">
-    <m:apply helm:xref="{@id}">
-     <xsl:choose>
-     <xsl:when test="string(target/@binder)= &quot;&quot;">
-      <m:csymbol>arrow</m:csymbol>
-      <xsl:apply-templates select="source/*[1]" mode="noannot"/>
-     </xsl:when>
-     <xsl:otherwise>
-      <m:csymbol>prod</m:csymbol>
-       <m:bvar>
-        <m:ci>
-         <xsl:value-of select="target/@binder"/>
-        </m:ci>
-        <m:type>
-         <xsl:apply-templates select="source/*[1]" mode="noannot"/>
-        </m:type>
-       </m:bvar>
-     </xsl:otherwise>
-     </xsl:choose>
-     <xsl:apply-templates select="target/*[1]" mode="noannot"/>
-    </m:apply>
-</xsl:template>
-
-<xsl:template match="CAST" mode="pure">
-    <m:apply helm:xref="{@id}">
-     <m:csymbol>cast</m:csymbol>
-     <xsl:apply-templates mode="noannot" select="*/*"/>
-    </m:apply>
-</xsl:template>
-
-<xsl:template match="REL" mode="pure">
-    <m:ci helm:xref="{@id}">
-     <xsl:value-of select="@binder"/>
-    </m:ci>
-</xsl:template>
-
-<xsl:template match="SORT" mode="pure">
-    <m:apply helm:xref="{@id}">
-     <m:csymbol>
-      <xsl:value-of select="@value"/>
-     </m:csymbol>
-    </m:apply>
-</xsl:template>
-
-<xsl:template match="APPLY" mode="pure">
-   <xsl:choose>
-    <!-- <xsl:when test="//ALLTYPES and boolean(key('typeid',*/@id))"> -->
-    <!-- start looking for subproofs -->
-    <xsl:when test="((*/@id) = (//ALLTYPES/TYPE/@id))"> 
-     <m:apply helm:xref="{@id}">
-      <m:csymbol>letin</m:csymbol>
-      <!-- <xsl:for-each select="*[boolean(key('typeid',@id))]"> -->
-      <!-- first process all subproofs (let-in) -->
-      <xsl:for-each select="*[@id = (//ALLTYPES/TYPE/@id)]">
-       <m:apply>
-        <m:csymbol>let</m:csymbol>
-        <m:ci><xsl:value-of select="concat('h',position())"/></m:ci>
-        <xsl:apply-templates mode="noannot" select="."/>
-       </m:apply>
-      </xsl:for-each>
-      <!-- now re-process the application in mode appflat -->
-      <xsl:apply-templates mode="appflat" select="."/> 
-     </m:apply>
-    </xsl:when>
-    <xsl:otherwise>
-     <xsl:apply-templates mode="appflat" select="."/>
-    </xsl:otherwise>
-   </xsl:choose>
-</xsl:template>
-
-<xsl:template match="APPLY" mode="appflat">
-      <m:apply helm:xref="{@id}">
-       <m:csymbol>app</m:csymbol>
-       <!-- mode flat looks for siblings: call with the first child -->
-       <xsl:apply-templates mode="flat" select="*[1]"/>
-      </m:apply>
-</xsl:template>
-
-<xsl:template match="*" mode="flat">
- <xsl:param name="n" select="1"/>
- <xsl:choose>
-  <xsl:when test="@id">
-   <xsl:variable name="id" select="@id"/>
-   <xsl:choose>
-    <!-- <xsl:when test="key('typeid',@id)"> -->
-    <xsl:when test="//ALLTYPES/TYPE[@id=$id]">
-     <m:ci>
-      <xsl:value-of select="concat('h',$n)"/>
-     </m:ci>
-     <xsl:apply-templates mode="flat" select="following-sibling::*[1]">
-      <xsl:with-param name="n" select="$n+1"/>
-     </xsl:apply-templates>
-    </xsl:when>
-    <xsl:otherwise>
-     <xsl:apply-templates mode="pure" select="."/>
-     <xsl:apply-templates mode="flat" select="following-sibling::*[1]">
-      <xsl:with-param name="n" select="$n"/>
-     </xsl:apply-templates>
-    </xsl:otherwise>
-   </xsl:choose>
-  </xsl:when>
-  <xsl:otherwise>
-   <xsl:apply-templates mode="pure" select="."/>
-   <xsl:apply-templates mode="flat" select="following-sibling::*[1]">
-    <xsl:with-param name="n" select="$n"/>
-   </xsl:apply-templates>
-  </xsl:otherwise>
- </xsl:choose>
-</xsl:template>
-
-<xsl:template match="VAR" mode="pure">
-    <m:ci helm:xref="{@id}">
-     <xsl:value-of select="substring-after(@relUri,&quot;,&quot;)"/>
-    </m:ci>
-</xsl:template>
-
-<xsl:template match="META" mode="pure">
-    <m:ci helm:xref="{@id}">
-     <xsl:value-of select="@no"/>
-    </m:ci>
-</xsl:template>
-
-<xsl:template match="CONST" mode="pure">
-    <m:ci definitionURL="{@uri}" helm:xref="{@id}">
-     <xsl:call-template name="name_of_uri">
-      <xsl:with-param name="uri" select="@uri"/>
-     </xsl:call-template>
-     <!-- <xsl:value-of select="document(concat(string($absPath),@uri))/*/@name"/> -->
-    </m:ci>
-</xsl:template>
-
-<xsl:template match="MUTIND" mode="pure">
-    <m:ci definitionURL="{@uri}" helm:xref="{@id}">
-     <xsl:variable name="index"><xsl:value-of select="@noType"/></xsl:variable>
-     <xsl:value-of select="document(concat(string($absPath),@uri))/InductiveDefinition/InductiveType[position()=number($index)+1]/@name"/>
-    </m:ci>
-</xsl:template>
-
-<xsl:template match="MUTCONSTRUCT" mode="pure">
-    <m:ci definitionURL="{@uri}" helm:xref="{@id}">
-     <xsl:variable name="Tindex"><xsl:value-of select="@noType"/></xsl:variable>
-     <xsl:variable name="Cindex"><xsl:value-of select="@noConstr"/></xsl:variable>
-     <xsl:value-of select="document(concat(string($absPath),@uri))/InductiveDefinition/InductiveType[position()=number($Tindex)+1]/Constructor[position()=number($Cindex)]/@name"/>
-    </m:ci>
-</xsl:template>
-
-<xsl:template match="MUTCASE" mode="pure">
-    <xsl:variable name="Tindex"><xsl:value-of select="@noType"/></xsl:variable>
-    <xsl:variable name="Turi"><xsl:value-of select="@uriType"/></xsl:variable>
-    <m:apply helm:xref="{@id}">
-     <m:csymbol>mutcase</m:csymbol>
-     <xsl:apply-templates select="patternsType/*[1]" mode="noannot"/>
-     <xsl:apply-templates select="inductiveTerm/*[1]" mode="noannot"/>
-     <xsl:variable name="nop"><xsl:value-of select="document(concat(string($absPath),$Turi))/InductiveDefinition/@noParams"/></xsl:variable>
-     <xsl:for-each select="pattern">
-      <xsl:variable name="pos" select="position()"/>
-      <xsl:variable name="nopar"><xsl:apply-templates select="document(concat(string($absPath),$Turi))/InductiveDefinition/InductiveType[position()=number($Tindex)+1]/Constructor[position()=number($pos)]/*[1]" mode="counting"><xsl:with-param name="noparams" select="$nop"/></xsl:apply-templates></xsl:variable>
-      <xsl:choose>
-      <xsl:when test="$nopar = 0">
-       <m:ci>
-        <xsl:value-of select="document(concat(string($absPath),$Turi))/InductiveDefinition/InductiveType[position()=number($Tindex)+1]/Constructor[position()=number($pos)]/@name"/>
-       </m:ci>
-      </xsl:when>
-      <xsl:otherwise>
-       <m:apply>
-        <m:csymbol>app</m:csymbol>
-        <m:ci>
-         <xsl:value-of select="document(concat(string($absPath),$Turi))/InductiveDefinition/InductiveType[position()=number($Tindex)+1]/Constructor[position()=number($pos)]/@name"/>
-        </m:ci>
-        <xsl:apply-templates select="./*[1]" mode="abstparams"><xsl:with-param name="noparams" select="$nopar"/><xsl:with-param name="binder">LAMBDA</xsl:with-param></xsl:apply-templates>
-        </m:apply>
-       </xsl:otherwise>
-       </xsl:choose>
-      <xsl:apply-templates select="./*[1]" mode="abstparams"><xsl:with-param name="noparams" select="$nopar"/><xsl:with-param name="target" select="1"/><xsl:with-param name="binder">LAMBDA</xsl:with-param></xsl:apply-templates>
-     </xsl:for-each> 
-    </m:apply>
-</xsl:template>
-
-<xsl:template match="FIX" mode="pure">
-    <m:apply helm:xref="{@id}">
-     <xsl:variable name="findex"><xsl:value-of select="@noFun"/></xsl:variable>
-     <m:csymbol>fix</m:csymbol>
-     <m:ci><xsl:value-of select="FixFunction[position()=number($findex)+1]/@name"/></m:ci>
-     <xsl:apply-templates mode="pure" select="*"/>
-    </m:apply>
-</xsl:template>
-
-<xsl:template match="COFIX" mode="pure">
-   <m:apply helm:xref="{@id}">
-     <xsl:variable name="findex"><xsl:value-of select="@noFun"/></xsl:variable>
-     <m:csymbol>cofix</m:csymbol>
-     <m:ci><xsl:value-of select="CofixFunction[position()=number($findex)+1]/@name"/></m:ci>
-     <xsl:apply-templates mode="pure" select="*"/>
-    </m:apply>
-</xsl:template>
-
-<!-- ELEMENTS OF CIC TERMS -->
-
-<xsl:template match="FixFunction" mode="pure">
-    <m:bvar>
-     <m:ci><xsl:value-of select="@name"/></m:ci>
-     <m:type><xsl:apply-templates select="type/*[1]" mode="noannot"/></m:type>
-    </m:bvar> 
-    <xsl:apply-templates select="body/*[1]" mode="noannot"/>
-</xsl:template>
-
-<xsl:template match="CofixFunction" mode="pure">
-    <m:bvar>
-     <m:ci><xsl:value-of select="@name"/></m:ci>
-     <m:type><xsl:apply-templates select="type/*[1]" mode="noannot"/></m:type>
-    </m:bvar> 
-    <xsl:apply-templates select="body/*[1]" mode="noannot"/>
-</xsl:template>
-
-</xsl:stylesheet>
diff --git a/helm/style/content.xsl.csc b/helm/style/content.xsl.csc
deleted file mode 100644
index 5f7c1e131..000000000
--- a/helm/style/content.xsl.csc
+++ /dev/null
@@ -1,258 +0,0 @@
-<?xml version="1.0"?>
-
-<!--******************************************************************--> 
-<!-- XSLT version 0.1 of CIC objects to MathML content:               -->
-<!-- First draft: February 14 2000, Andrea Asperti, Irene Schena      -->
-<!-- Revised: March 3 2000, Irene Schena                              -->
-<!-- Revised: March 10 2000, Irene Schena                             -->
-<!-- Revised: March 15 2000, Claudio Sacerdoti Coen, Irene Schena     -->
-<!--******************************************************************-->
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML">
-
-<xsl:include href="params.xsl"/>
-
-<!--<xsl:output
-           method="xml" 
-           version="1.0" 
-           encoding="ISO-8859-1" 
-           omit-xml-declaration="no"
-           standalone="no" 
-           doctype-public="http://www.w3.org/TR/REC-MathML" 
-           indent="yes"
-           media-type="text/mathml" /> -->
-
-<!-- DA FARE: 
-1)risolvere nella fase di pre-processing le uri relative, settando l'attributo
-definitionURL dell'oggetto corrispondente (alcuni punteranno a nulla! -quelli 
-che non hanno il file di definizione corrispondente-); [le uri assolute hanno
-la forma cic:/.../ in definitionURL e questo schema di uri verra' risolto da
-Amaya o da chi di dovere in /really_very_local/helm/PARSER/example/.../]
-2)aggiungere nei file xml gli ID, affinche' nello stylesheet si setti
-l'attributo xref di ogni oggetto per puntare (tramite ID) al suo corrispondente
-della rappresentazione interna. 
--->
-
-<!--******************************************************************-->
-<!-- Variable containing the absolute path of the CIC file            -->
-<!--******************************************************************-->
-
-<xsl:variable name="absPath">http://localhost:8081/get?url=</xsl:variable>
-
-<!-- CIC TERMS -->
-
-<xsl:template match="LAMBDA" mode="noannot">
-  <xsl:param name="backpointer" select="''"/>
-    <m:lambda>
-     <m:bvar>
-      <m:ci>
-       [[<xsl:value-of select="$backpointer"/>]]
-       <xsl:value-of select="target/@binder"/>
-      </m:ci>
-      <m:type>
-       <xsl:apply-templates select="source/*[1]" mode="noannot">
-        <xsl:with-param name="backpointer" select="concat($backpointer,'/*[1]/*[1]')"/>
-       </xsl:apply-templates>
-      </m:type>
-     </m:bvar>
-     <xsl:apply-templates select="target/*[1]" mode="noannot">
-      <xsl:with-param name="backpointer" select="concat($backpointer,'/*[2]/*[1]')"/>
-     </xsl:apply-templates>
-    </m:lambda>
-</xsl:template>
-
-<xsl:template match="PROD" mode="noannot">
-  <xsl:param name="backpointer" select="''"/>
-    <m:apply>
-     <xsl:choose>
-     <xsl:when test="string(target/@binder)= &quot;&quot;">
-      <m:csymbol>arrow</m:csymbol>
-      <xsl:apply-templates select="source/*[1]" mode="noannot">
-       <xsl:with-param name="backpointer" select="concat($backpointer,'/*[1]/*[1]')"/>
-      </xsl:apply-templates>
-     </xsl:when>
-     <xsl:otherwise>
-      <m:csymbol>prod</m:csymbol>
-       <m:bvar>
-        <m:ci>
-         [[<xsl:value-of select="$backpointer"/>]]
-         <xsl:value-of select="target/@binder"/>
-        </m:ci>
-        <m:type>
-         <xsl:apply-templates select="source/*[1]" mode="noannot">
-          <xsl:with-param name="backpointer" select="concat($backpointer,'/*[1]/*[1]')"/>
-         </xsl:apply-templates>
-        </m:type>
-       </m:bvar>
-     </xsl:otherwise>
-     </xsl:choose>
-     <xsl:apply-templates select="target/*[1]" mode="noannot">
-      <xsl:with-param name="backpointer" select="concat($backpointer,'/*[2]/*[1]')"/>
-     </xsl:apply-templates>
-    </m:apply>
-</xsl:template>
-
-<xsl:template match="CAST" mode="noannot">
-  <xsl:param name="backpointer" select="''"/>
-    <m:apply>
-     <m:csymbol>cast</m:csymbol>
-     <xsl:apply-templates mode="noannot" select="*[1]/*[1]">
-      <xsl:with-param name="backpointer" select="concat($backpointer,'/*[1]/*[1]')"/>
-     </xsl:apply-templates>
-     <xsl:apply-templates mode="noannot" select="*[2]/*[1]">
-      <xsl:with-param name="backpointer" select="concat($backpointer,'/*[2]/*[1]')"/>
-     </xsl:apply-templates>
-    </m:apply>
-</xsl:template>
-
-<xsl:template match="REL" mode="noannot">
-  <xsl:param name="backpointer" select="''"/>
-    <m:ci>
-     [[<xsl:value-of select="$backpointer"/>]]
-     <xsl:value-of select="@binder"/>
-    </m:ci>
-</xsl:template>
-
-<xsl:template match="SORT" mode="noannot">
-  <xsl:param name="backpointer" select="''"/>
-    <m:apply>
-     <m:csymbol>
-      <xsl:value-of select="@value"/>
-     </m:csymbol>
-    </m:apply>
-</xsl:template>
-
-<xsl:template match="APPLY" mode="noannot">
-  <xsl:param name="backpointer" select="''"/>
-    <m:apply>
-    <m:csymbol>app</m:csymbol>
-     <xsl:for-each select="*">
-      <xsl:apply-templates mode="noannot" select=".">
-       <xsl:with-param name="backpointer" select="concat($backpointer,'/*[',position(),']')"/>
-      </xsl:apply-templates>
-     </xsl:for-each>
-    </m:apply>
-</xsl:template>
-
-<xsl:template match="VAR" mode="noannot">
-  <xsl:param name="backpointer" select="''"/>
-    <m:ci>
-     [[<xsl:value-of select="$backpointer"/>]]
-     <xsl:value-of select="substring-after(@relUri,&quot;,&quot;)"/>
-    </m:ci>
-</xsl:template>
-
-<xsl:template match="META" mode="noannot">
-  <xsl:param name="backpointer" select="''"/>
-    <m:ci>
-     [[<xsl:value-of select="$backpointer"/>]]
-     <xsl:value-of select="@no"/>
-    </m:ci>
-</xsl:template>
-
-<xsl:template match="CONST" mode="noannot">
-  <xsl:param name="backpointer" select="''"/>
-    <m:ci definitionURL="{@uri}">
-     [[<xsl:value-of select="$backpointer"/>]]
-     <xsl:call-template name="name_of_uri">
-      <xsl:with-param name="uri" select="@uri"/>
-     </xsl:call-template>
-     <!-- <xsl:value-of select="document(concat(string($absPath),@uri))/*/@name"/> -->
-    </m:ci>
-</xsl:template>
-
-<xsl:template match="MUTIND" mode="noannot">
-  <xsl:param name="backpointer" select="''"/>
-    <m:ci definitionURL="{@uri}">
-     <xsl:variable name="index"><xsl:value-of select="@noType"/></xsl:variable>
-     [[<xsl:value-of select="$backpointer"/>]]
-     <xsl:value-of select="document(concat(string($absPath),@uri))/InductiveDefinition/InductiveType[position()=number($index)+1]/@name"/>
-    </m:ci>
-</xsl:template>
-
-<xsl:template match="MUTCONSTRUCT" mode="noannot">
-  <xsl:param name="backpointer" select="''"/>
-    <m:ci definitionURL="{@uri}">
-     <xsl:variable name="Tindex"><xsl:value-of select="@noType"/></xsl:variable>
-     <xsl:variable name="Cindex"><xsl:value-of select="@noConstr"/></xsl:variable>
-     [[<xsl:value-of select="$backpointer"/>]]
-     <xsl:value-of select="document(concat(string($absPath),@uri))/InductiveDefinition/InductiveType[position()=number($Tindex)+1]/Constructor[position()=number($Cindex)]/@name"/>
-    </m:ci>
-</xsl:template>
-
-<xsl:template match="MUTCASE" mode="noannot">
-  <xsl:param name="backpointer" select="''"/>
-    <xsl:variable name="Tindex"><xsl:value-of select="@noType"/></xsl:variable>
-    <xsl:variable name="Turi"><xsl:value-of select="@uriType"/></xsl:variable>
-    <m:apply>
-     <m:csymbol>mutcase</m:csymbol>
-     <xsl:apply-templates select="patternsType/*[1]" mode="noannot">
-       <xsl:with-param name="backpointer" select="concat($backpointer,'/*[1]/*[1]')"/>
-     </xsl:apply-templates>
-     <xsl:apply-templates select="inductiveTerm/*[1]" mode="noannot">
-       <xsl:with-param name="backpointer" select="concat($backpointer,'/*[2]/*[1]')"/>
-     </xsl:apply-templates>
-     <xsl:variable name="nop"><xsl:value-of select="document(concat(string($absPath),$Turi))/InductiveDefinition/@noParams"/></xsl:variable>
-     <xsl:for-each select="pattern">
-      <xsl:variable name="pos" select="position()"/>
-      <xsl:variable name="nopar"><xsl:apply-templates select="document(concat(string($absPath),$Turi))/InductiveDefinition/InductiveType[position()=number($Tindex)+1]/Constructor[position()=number($pos)]/*[1]" mode="counting"><xsl:with-param name="noparams" select="$nop"/></xsl:apply-templates></xsl:variable>
-      <xsl:choose>
-      <xsl:when test="$nopar = 0">
-       <m:ci>
-        <xsl:value-of select="document(concat(string($absPath),$Turi))/InductiveDefinition/InductiveType[position()=number($Tindex)+1]/Constructor[position()=number($pos)]/@name"/>
-       </m:ci>
-      </xsl:when>
-      <xsl:otherwise>
-       <m:apply>
-        <m:csymbol>app</m:csymbol>
-        <m:ci>
-         <xsl:value-of select="document(concat(string($absPath),$Turi))/InductiveDefinition/InductiveType[position()=number($Tindex)+1]/Constructor[position()=number($pos)]/@name"/>
-        </m:ci>
-        <xsl:apply-templates select="./*[1]" mode="abstparams"><xsl:with-param name="noparams" select="$nopar"/><xsl:with-param name="binder">LAMBDA</xsl:with-param></xsl:apply-templates>
-        </m:apply>
-       </xsl:otherwise>
-       </xsl:choose>
-      <xsl:apply-templates select="./*[1]" mode="abstparams"><xsl:with-param name="noparams" select="$nopar"/><xsl:with-param name="target" select="1"/><xsl:with-param name="binder">LAMBDA</xsl:with-param></xsl:apply-templates>
-     </xsl:for-each> 
-    </m:apply>
-</xsl:template>
-
-<xsl:template match="FIX" mode="noannot">
-  <xsl:param name="backpointer" select="''"/>
-    <m:apply>
-     <xsl:variable name="findex"><xsl:value-of select="@noFun"/></xsl:variable>
-     <m:csymbol>fix</m:csymbol>
-     <m:ci><xsl:value-of select="FixFunction[position()=number($findex)+1]/@name"/></m:ci>
-     <xsl:apply-templates mode="noannot" select="*"/>
-    </m:apply>
-</xsl:template>
-
-<xsl:template match="COFIX" mode="noannot">
-   <m:apply>
-     <xsl:variable name="findex"><xsl:value-of select="@noFun"/></xsl:variable>
-     <m:csymbol>cofix</m:csymbol>
-     <m:ci><xsl:value-of select="CofixFunction[position()=number($findex)+1]/@name"/></m:ci>
-     <xsl:apply-templates mode="noannot" select="*"/>
-    </m:apply>
-</xsl:template>
-
-<!-- ELEMENTS OF CIC TERMS -->
-
-<xsl:template match="FixFunction" mode="noannot">
-    <m:bvar>
-     <m:ci><xsl:value-of select="@name"/></m:ci>
-     <m:type><xsl:apply-templates select="type/*[1]" mode="noannot"/></m:type>
-    </m:bvar> 
-    <xsl:apply-templates select="body/*[1]" mode="noannot"/>
-</xsl:template>
-
-<xsl:template match="CofixFunction" mode="noannot">
-    <m:bvar>
-     <m:ci><xsl:value-of select="@name"/></m:ci>
-     <m:type><xsl:apply-templates select="type/*[1]" mode="noannot"/></m:type>
-    </m:bvar> 
-    <xsl:apply-templates select="body/*[1]" mode="noannot"/>
-</xsl:template>
-
-</xsl:stylesheet>
diff --git a/helm/style/content_senza_tipi.13.9.00.xsl b/helm/style/content_senza_tipi.13.9.00.xsl
deleted file mode 100644
index 7de998720..000000000
--- a/helm/style/content_senza_tipi.13.9.00.xsl
+++ /dev/null
@@ -1,215 +0,0 @@
-<?xml version="1.0"?>
-
-<!--******************************************************************--> 
-<!-- XSLT version 0.1 of CIC objects to MathML content:               -->
-<!-- First draft: February 14 2000, Andrea Asperti, Irene Schena      -->
-<!-- Revised: March 3 2000, Irene Schena                              -->
-<!-- Revised: March 10 2000, Irene Schena                             -->
-<!-- Revised: March 15 2000, Claudio Sacerdoti Coen, Irene Schena     -->
-<!--******************************************************************-->
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML"
-                              xmlns:helm="http://www.cs.unibo.it/helm">
-
-<xsl:include href="params.xsl"/>
-
-<!--<xsl:output
-           method="xml" 
-           version="1.0" 
-           encoding="ISO-8859-1" 
-           omit-xml-declaration="no"
-           standalone="no" 
-           doctype-public="http://www.w3.org/TR/REC-MathML" 
-           indent="yes"
-           media-type="text/mathml" /> -->
-
-<!-- DA FARE: 
-1)risolvere nella fase di pre-processing le uri relative, settando l'attributo
-definitionURL dell'oggetto corrispondente (alcuni punteranno a nulla! -quelli 
-che non hanno il file di definizione corrispondente-); [le uri assolute hanno
-la forma cic:/.../ in definitionURL e questo schema di uri verra' risolto da
-Amaya o da chi di dovere in /really_very_local/helm/PARSER/example/.../]
-2)aggiungere nei file xml gli ID, affinche' nello stylesheet si setti
-l'attributo xref di ogni oggetto per puntare (tramite ID) al suo corrispondente
-della rappresentazione interna. 
--->
-
-<!--******************************************************************-->
-<!-- Variable containing the absolute path of the CIC file            -->
-<!--******************************************************************-->
-
-<xsl:variable name="absPath">http://localhost:8081/get?url=</xsl:variable>
-
-<!-- CIC TERMS -->
-
-<xsl:template match="LAMBDA" mode="noannot">
-    <m:lambda helm:xref="{@id}">
-     <m:bvar>
-      <m:ci>
-       <xsl:value-of select="target/@binder"/>
-      </m:ci>
-      <m:type>
-       <xsl:apply-templates select="source/*[1]" mode="noannot"/>
-      </m:type>
-     </m:bvar>
-     <xsl:apply-templates select="target/*[1]" mode="noannot"/>
-    </m:lambda>
-</xsl:template>
-
-<xsl:template match="PROD" mode="noannot">
-    <m:apply helm:xref="{@id}">
-     <xsl:choose>
-     <xsl:when test="string(target/@binder)= &quot;&quot;">
-      <m:csymbol>arrow</m:csymbol>
-      <xsl:apply-templates select="source/*[1]" mode="noannot"/>
-     </xsl:when>
-     <xsl:otherwise>
-      <m:csymbol>prod</m:csymbol>
-       <m:bvar>
-        <m:ci>
-         <xsl:value-of select="target/@binder"/>
-        </m:ci>
-        <m:type>
-         <xsl:apply-templates select="source/*[1]" mode="noannot"/>
-        </m:type>
-       </m:bvar>
-     </xsl:otherwise>
-     </xsl:choose>
-     <xsl:apply-templates select="target/*[1]" mode="noannot"/>
-    </m:apply>
-</xsl:template>
-
-<xsl:template match="CAST" mode="noannot">
-    <m:apply helm:xref="{@id}">
-     <m:csymbol>cast</m:csymbol>
-     <xsl:apply-templates mode="noannot" select="*/*"/>
-    </m:apply>
-</xsl:template>
-
-<xsl:template match="REL" mode="noannot">
-    <m:ci helm:xref="{@id}">
-     <xsl:value-of select="@binder"/>
-    </m:ci>
-</xsl:template>
-
-<xsl:template match="SORT" mode="noannot">
-    <m:apply helm:xref="{@id}">
-     <m:csymbol>
-      <xsl:value-of select="@value"/>
-     </m:csymbol>
-    </m:apply>
-</xsl:template>
-
-<xsl:template match="APPLY" mode="noannot">
-    <m:apply helm:xref="{@id}">
-    <m:csymbol>app</m:csymbol>
-     <xsl:apply-templates mode="noannot" select="*"/>
-    </m:apply>
-</xsl:template>
-
-<xsl:template match="VAR" mode="noannot">
-    <m:ci helm:xref="{@id}">
-     <xsl:value-of select="substring-after(@relUri,&quot;,&quot;)"/>
-    </m:ci>
-</xsl:template>
-
-<xsl:template match="META" mode="noannot">
-    <m:ci helm:xref="{@id}">
-     <xsl:value-of select="@no"/>
-    </m:ci>
-</xsl:template>
-
-<xsl:template match="CONST" mode="noannot">
-    <m:ci definitionURL="{@uri}" helm:xref="{@id}">
-     <xsl:call-template name="name_of_uri">
-      <xsl:with-param name="uri" select="@uri"/>
-     </xsl:call-template>
-     <!-- <xsl:value-of select="document(concat(string($absPath),@uri))/*/@name"/> -->
-    </m:ci>
-</xsl:template>
-
-<xsl:template match="MUTIND" mode="noannot">
-    <m:ci definitionURL="{@uri}" helm:xref="{@id}">
-     <xsl:variable name="index"><xsl:value-of select="@noType"/></xsl:variable>
-     <xsl:value-of select="document(concat(string($absPath),@uri))/InductiveDefinition/InductiveType[position()=number($index)+1]/@name"/>
-    </m:ci>
-</xsl:template>
-
-<xsl:template match="MUTCONSTRUCT" mode="noannot">
-    <m:ci definitionURL="{@uri}" helm:xref="{@id}">
-     <xsl:variable name="Tindex"><xsl:value-of select="@noType"/></xsl:variable>
-     <xsl:variable name="Cindex"><xsl:value-of select="@noConstr"/></xsl:variable>
-     <xsl:value-of select="document(concat(string($absPath),@uri))/InductiveDefinition/InductiveType[position()=number($Tindex)+1]/Constructor[position()=number($Cindex)]/@name"/>
-    </m:ci>
-</xsl:template>
-
-<xsl:template match="MUTCASE" mode="noannot">
-    <xsl:variable name="Tindex"><xsl:value-of select="@noType"/></xsl:variable>
-    <xsl:variable name="Turi"><xsl:value-of select="@uriType"/></xsl:variable>
-    <m:apply helm:xref="{@id}">
-     <m:csymbol>mutcase</m:csymbol>
-     <xsl:apply-templates select="patternsType/*[1]" mode="noannot"/>
-     <xsl:apply-templates select="inductiveTerm/*[1]" mode="noannot"/>
-     <xsl:variable name="nop"><xsl:value-of select="document(concat(string($absPath),$Turi))/InductiveDefinition/@noParams"/></xsl:variable>
-     <xsl:for-each select="pattern">
-      <xsl:variable name="pos" select="position()"/>
-      <xsl:variable name="nopar"><xsl:apply-templates select="document(concat(string($absPath),$Turi))/InductiveDefinition/InductiveType[position()=number($Tindex)+1]/Constructor[position()=number($pos)]/*[1]" mode="counting"><xsl:with-param name="noparams" select="$nop"/></xsl:apply-templates></xsl:variable>
-      <xsl:choose>
-      <xsl:when test="$nopar = 0">
-       <m:ci>
-        <xsl:value-of select="document(concat(string($absPath),$Turi))/InductiveDefinition/InductiveType[position()=number($Tindex)+1]/Constructor[position()=number($pos)]/@name"/>
-       </m:ci>
-      </xsl:when>
-      <xsl:otherwise>
-       <m:apply>
-        <m:csymbol>app</m:csymbol>
-        <m:ci>
-         <xsl:value-of select="document(concat(string($absPath),$Turi))/InductiveDefinition/InductiveType[position()=number($Tindex)+1]/Constructor[position()=number($pos)]/@name"/>
-        </m:ci>
-        <xsl:apply-templates select="./*[1]" mode="abstparams"><xsl:with-param name="noparams" select="$nopar"/><xsl:with-param name="binder">LAMBDA</xsl:with-param></xsl:apply-templates>
-        </m:apply>
-       </xsl:otherwise>
-       </xsl:choose>
-      <xsl:apply-templates select="./*[1]" mode="abstparams"><xsl:with-param name="noparams" select="$nopar"/><xsl:with-param name="target" select="1"/><xsl:with-param name="binder">LAMBDA</xsl:with-param></xsl:apply-templates>
-     </xsl:for-each> 
-    </m:apply>
-</xsl:template>
-
-<xsl:template match="FIX" mode="noannot">
-    <m:apply helm:xref="{@id}">
-     <xsl:variable name="findex"><xsl:value-of select="@noFun"/></xsl:variable>
-     <m:csymbol>fix</m:csymbol>
-     <m:ci><xsl:value-of select="FixFunction[position()=number($findex)+1]/@name"/></m:ci>
-     <xsl:apply-templates mode="noannot" select="*"/>
-    </m:apply>
-</xsl:template>
-
-<xsl:template match="COFIX" mode="noannot">
-   <m:apply helm:xref="{@id}">
-     <xsl:variable name="findex"><xsl:value-of select="@noFun"/></xsl:variable>
-     <m:csymbol>cofix</m:csymbol>
-     <m:ci><xsl:value-of select="CofixFunction[position()=number($findex)+1]/@name"/></m:ci>
-     <xsl:apply-templates mode="noannot" select="*"/>
-    </m:apply>
-</xsl:template>
-
-<!-- ELEMENTS OF CIC TERMS -->
-
-<xsl:template match="FixFunction" mode="noannot">
-    <m:bvar>
-     <m:ci><xsl:value-of select="@name"/></m:ci>
-     <m:type><xsl:apply-templates select="type/*[1]" mode="noannot"/></m:type>
-    </m:bvar> 
-    <xsl:apply-templates select="body/*[1]" mode="noannot"/>
-</xsl:template>
-
-<xsl:template match="CofixFunction" mode="noannot">
-    <m:bvar>
-     <m:ci><xsl:value-of select="@name"/></m:ci>
-     <m:type><xsl:apply-templates select="type/*[1]" mode="noannot"/></m:type>
-    </m:bvar> 
-    <xsl:apply-templates select="body/*[1]" mode="noannot"/>
-</xsl:template>
-
-</xsl:stylesheet>
diff --git a/helm/style/content_to_html.xsl b/helm/style/content_to_html.xsl
deleted file mode 100644
index dd1c07794..000000000
--- a/helm/style/content_to_html.xsl
+++ /dev/null
@@ -1,657 +0,0 @@
-<?xml version="1.0"?>
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML">
-
-<!--***********************************************************************--> 
-<!-- From MathML content to HTML                                           -->
-<!-- HELM Group: Asperti, Padovani, Sacerdoti, Schena                      -->
-<!--***********************************************************************--> 
-
-
-<xsl:include href="html_init.xsl"/>
-<xsl:include href="html_set.xsl"/>
-<xsl:include href="html_reals.xsl"/>
-
-
-<!-- <xsl:variable name="absPath">http://localhost:8081/get?url=</xsl:variable>-->
-<xsl:variable name="header" select="document('http://localhost:8081/conf')/html_link"/>
-
-<xsl:variable name="showcast" select="0"/>
-
-
-<!--***********************************************************************-->
-<!-- HTML Head and Body                                                    -->
-<!--***********************************************************************-->
-
-<xsl:output method="html"/>
-
-<xsl:variable name="framewidth" select="36"/>
-
-<xsl:template match="/">
- <xsl:param name="current_indent" select="0"/>
-               <html> 
-                <head></head>
-                <body>
-                <xsl:apply-templates>
-                 <xsl:with-param name="current_indent" select="0"/>
-                </xsl:apply-templates>
-                </body>
-               </html>
-</xsl:template>
-
-<!--***********************************************************************-->
-<!-- Indentation             	                                           -->
-<!--***********************************************************************-->
-
-<xsl:template name="make_indent">
- <xsl:param name="current_indent" select="0"/>
-  <xsl:if test="$current_indent > 0">
-   <xsl:text>&#x00A0;</xsl:text>
-   <xsl:call-template name="make_indent">
-    <xsl:with-param name="current_indent" select="$current_indent - 1"/> 
-   </xsl:call-template>
-  </xsl:if>
-</xsl:template>
-
-<!-- Syntactic Sugar -->
-
-<xsl:template match="m:type">
-<xsl:param name="current_indent" select="0"/> 
-<xsl:apply-templates>
- <xsl:with-param name="current_indent" 
-           select="$current_indent"/>
-</xsl:apply-templates>
-</xsl:template>
-
-<xsl:template match="m:condition">
-<xsl:param name="current_indent" select="0"/> 
-<xsl:apply-templates>
- <xsl:with-param name="current_indent" 
-           select="$current_indent"/>
-</xsl:apply-templates>
-</xsl:template>
-
-<xsl:template match="m:math">
-<xsl:param name="current_indent" select="0"/> 
-<xsl:apply-templates>
- <xsl:with-param name="current_indent" 
-           select="$current_indent"/>
-</xsl:apply-templates>
-</xsl:template>
-
-<!-- CSYMBOL -->
-
-<xsl:template match="m:apply[m:csymbol]">
-  <xsl:param name="current_indent" select="0"/> 
-  <xsl:param name="width" select="$framewidth"/> 
-  <xsl:variable name="name">
-   <xsl:value-of select="m:csymbol"/>
-  </xsl:variable>
-  <xsl:variable name="charlength">
-   <xsl:apply-templates select="m:csymbol" mode="charcount"/>
-  </xsl:variable>
-     <!-- <xsl:value-of select="$current_indent"/> -->
-     <!-- <xsl:value-of select="$charlength"/> -->
-     <xsl:choose>
-      <xsl:when test="$name='prod'">
-       <xsl:choose>
-       <xsl:when test="$charlength > $framewidth">
-         <!-- &#x03a0; -->
-         <FONT FACE="symbol" SIZE="+2" color="blue">&#80;</FONT>
-         <xsl:apply-templates select="m:bvar/m:ci"/>
-         <xsl:text>:</xsl:text>
-         <xsl:apply-templates select="m:bvar/m:type">
-          <xsl:with-param name="current_indent" 
-           select="$current_indent + 2 + string-length(m:bvar/m:ci)"/>
-         </xsl:apply-templates><BR/> 
-         <xsl:call-template name="make_indent">
-          <xsl:with-param name="current_indent" select="$current_indent + 2"/> 
-         </xsl:call-template>
-         <xsl:text>.</xsl:text>
-         <xsl:apply-templates select="*[position()=3]">
-          <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-         </xsl:apply-templates>
-       </xsl:when>
-       <xsl:otherwise>
-        <!-- &#x03a0; -->
-        <FONT FACE="symbol" SIZE="+2" color="blue">&#80;</FONT>
-        <xsl:apply-templates select="m:bvar/m:ci"/>
-        <xsl:text>:</xsl:text>
-        <xsl:apply-templates select="m:bvar/m:type"/>
-        <xsl:text>.</xsl:text>
-        <xsl:apply-templates select="*[position()=3]"/>
-       </xsl:otherwise>
-       </xsl:choose>
-      </xsl:when>
-      <xsl:when test="$name='arrow'">
-       <xsl:choose>
-       <xsl:when test="$charlength > $framewidth">
-       <xsl:text>(</xsl:text>
-       <xsl:apply-templates select="*[position()=2]">
-        <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-       </xsl:apply-templates>
-       <BR/>
-       <xsl:call-template name="make_indent">
-        <xsl:with-param name="current_indent" select="$current_indent + 2"/> 
-       </xsl:call-template>
-       <!-- -> -->
-       <FONT FACE="symbol" SIZE="+2" color="blue">&#174;</FONT>
-       <xsl:apply-templates select="*[position()=3]">
-        <xsl:with-param name="current_indent" select="$current_indent + 5"/>
-       </xsl:apply-templates>
-       <xsl:text>)</xsl:text>
-       </xsl:when>
-       <xsl:otherwise>
-        <xsl:text>(</xsl:text>
-        <xsl:apply-templates select="*[position()=2]"/>
-        <!-- -> -->
-        <FONT FACE="symbol" SIZE="+2" color="blue">&#174;</FONT>
-        <xsl:apply-templates select="*[position()=3]"/>
-        <xsl:text>)</xsl:text>
-       </xsl:otherwise>
-       </xsl:choose>
-      </xsl:when>
-      <xsl:when test="$name='app'">
-       <xsl:choose>
-       <xsl:when test="$charlength  > $framewidth">
-        <xsl:text>(</xsl:text>
-        <xsl:apply-templates select="*[position()=2]">
-         <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-        </xsl:apply-templates>
-         <xsl:for-each select="*[position()>2]">
-          <BR/>
-           <xsl:call-template name="make_indent">
-            <xsl:with-param name="current_indent" select="$current_indent + 2"/>         
-           </xsl:call-template>
-            <xsl:apply-templates select=".">
-             <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-            </xsl:apply-templates>
-         </xsl:for-each>
-         <xsl:text>)</xsl:text>
-       </xsl:when>
-       <xsl:otherwise>
-        <xsl:text>(</xsl:text>
-        <xsl:apply-templates select="*[position()=2]"/>
-        <xsl:for-each select="*[position()>2]">
-         <xsl:text>&#x00A0;</xsl:text>
-         <xsl:apply-templates select="."/>
-        </xsl:for-each>
-        <xsl:text>)</xsl:text>
-       </xsl:otherwise>
-       </xsl:choose>
-      </xsl:when>
-      <xsl:when test="$name='cast'">
-       <xsl:choose>
-        <xsl:when test="$showcast = 1">
-         <xsl:choose>
-          <xsl:when test="$charlength > $framewidth">
-           <xsl:text>(</xsl:text>
-           <xsl:apply-templates select="*[position()=2]">
-            <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-           </xsl:apply-templates><BR/>
-           <xsl:call-template name="make_indent">
-            <xsl:with-param name="current_indent" select="$current_indent + 2"/>          </xsl:call-template>
-           <xsl:text>:></xsl:text>
-           <xsl:apply-templates select="*[position()=3]">
-            <xsl:with-param name="current_indent" select="$current_indent + 3"/>
-           </xsl:apply-templates>
-           <xsl:text>)</xsl:text>
-          </xsl:when>
-          <xsl:otherwise>
-           <xsl:text>(</xsl:text>
-           <xsl:apply-templates select="*[position()=2]"/>
-           <xsl:text>:></xsl:text>
-           <xsl:apply-templates select="*[position()=3]"/>
-           <xsl:text>)</xsl:text>
-          </xsl:otherwise>
-         </xsl:choose>
-        </xsl:when>
-        <xsl:otherwise>
-         <xsl:apply-templates select="*[position()=2]">
-          <xsl:with-param name="current_indent" select="$current_indent"/>
-         </xsl:apply-templates>
-        </xsl:otherwise>
-       </xsl:choose>
-      </xsl:when>
-      <xsl:when test="$name='Prop'">
-       <xsl:text>Prop</xsl:text>
-      </xsl:when>
-      <xsl:when test="$name='Set'">
-       <xsl:text>Set</xsl:text>
-      </xsl:when>
-      <xsl:when test="$name='Type'">
-       <xsl:text>Type</xsl:text>
-      </xsl:when>
-      <xsl:when test="$name='mutcase'">
-       <xsl:choose>
-       <xsl:when test="$charlength > $framewidth">
-         <xsl:text>&lt;</xsl:text>
-         <xsl:apply-templates select="*[position()=2]">
-          <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-         </xsl:apply-templates>
-         <xsl:text>&gt; </xsl:text>
-         <xsl:text>CASE </xsl:text>
-         <xsl:apply-templates select="*[position()=3]">
-          <xsl:with-param name="current_indent" select="$current_indent + 8"/>
-         </xsl:apply-templates>
-         <xsl:text> OF </xsl:text> 
-         <xsl:for-each select="*[position() mod 2 = 0 and position()>3]">
-         <BR/>
-         <xsl:call-template name="make_indent">
-            <xsl:with-param name="current_indent" select="$current_indent + 2"/>  
-         </xsl:call-template> 
-            <xsl:choose>
-            <xsl:when test="position() = 1">
-             <xsl:text>&#x00A0;&#x00A0;</xsl:text>
-            </xsl:when>
-            <xsl:otherwise>
-             <xsl:text>| </xsl:text>
-            </xsl:otherwise>
-            </xsl:choose>
-            <xsl:apply-templates select="."/>
-            <FONT FACE="symbol" SIZE="+2" color="green">&#222;</FONT>
-            <xsl:apply-templates select="following-sibling::*[position()= 1]">
-             <xsl:with-param name="current_indent" select="$current_indent + 4 + string-length()"/>
-            </xsl:apply-templates>
-         </xsl:for-each>
-       </xsl:when>
-       <xsl:otherwise>
-        <xsl:text>&lt;</xsl:text> 
-        <xsl:apply-templates select="*[position()=2]"/> 
-        <xsl:text>&gt; </xsl:text>
-        <xsl:text>CASE </xsl:text>
-        <xsl:apply-templates select="*[position()=3]"/>
-        <xsl:text> OF </xsl:text>
-        <xsl:for-each select="*[position() mod 2 = 0 and position()>3]">
-         <xsl:choose>
-         <xsl:when test="not(position() = 1)">
-          <xsl:text> | </xsl:text> 
-         </xsl:when> 
-         </xsl:choose>
-         <xsl:apply-templates select="."/>
-         <FONT FACE="symbol" SIZE="+2" color="green">&#222;</FONT>
-         <xsl:apply-templates select="following-sibling::*[position()= 1]">
-          <xsl:with-param name="current_indent" select="$current_indent + 2 + string-length()"/>
-         </xsl:apply-templates>
-        </xsl:for-each>
-       </xsl:otherwise>
-       </xsl:choose>
-      </xsl:when>
-      <xsl:when test="$name='fix'">
-       <xsl:choose>
-       <xsl:when test="$charlength  > $framewidth">
-            <xsl:text>FIX</xsl:text>
-            <xsl:value-of select="m:ci"/>
-            <xsl:text>{</xsl:text> 
-            <xsl:for-each select="m:bvar"> 
-              <BR/>
-              <xsl:call-template name="make_indent">
-               <xsl:with-param name="current_indent" select="$current_indent + 2"/>  
-              </xsl:call-template>
-              <xsl:value-of select="m:ci"/>
-              <xsl:text>:</xsl:text>
-              <xsl:apply-templates select="m:type">
-               <xsl:with-param name="current_indent" 
-                    select="$current_indent + 5 + string-length(m:ci)"/>
-               </xsl:apply-templates>
-              <BR/>
-              <xsl:call-template name="make_indent">
-               <xsl:with-param name="current_indent" select="$current_indent + 2"/>       
-              </xsl:call-template>
-              <xsl:text>:=</xsl:text> 
-              <xsl:apply-templates select="following-sibling::*[position() = 1]">
-               <xsl:with-param name="current_indent" select="$current_indent +2"/>
-              </xsl:apply-templates>
-            </xsl:for-each>
-             <BR/>
-              <xsl:call-template name="make_indent">
-               <xsl:with-param name="current_indent" select="$current_indent + 2"/>       
-              </xsl:call-template> 
-           <xsl:text>}</xsl:text>
-       </xsl:when>
-       <xsl:otherwise>
-        <xsl:text>FIX</xsl:text>
-        <xsl:value-of select="m:ci"/>
-        <xsl:text>{</xsl:text>
-        <xsl:for-each select="m:bvar"> 
-            <xsl:value-of select="m:ci"/>
-            <xsl:text>:</xsl:text>
-            <xsl:apply-templates select="m:type"/>
-            <xsl:text>:=</xsl:text>
-            <xsl:apply-templates select="following-sibling::*[position() = 1]"/>
-            <xsl:choose>
-             <xsl:when test="position()=last()">
-             <xsl:text>}</xsl:text>
-             </xsl:when>
-             <xsl:otherwise>
-             <xsl:text>;</xsl:text>
-             </xsl:otherwise>
-            </xsl:choose>
-         </xsl:for-each>
-       </xsl:otherwise>
-       </xsl:choose>
-      </xsl:when> 
-      <xsl:when test="$name='cofix'">
-       <xsl:choose>
-       <xsl:when test="($charlength + 10) > $framewidth">
-            <xsl:text>COFIX</xsl:text>
-            <xsl:value-of select="m:ci"/>
-            <xsl:text>{</xsl:text>
-            <BR/>
-            <xsl:call-template name="make_indent">
-             <xsl:with-param name="current_indent" select="$current_indent + 2"/>       
-            </xsl:call-template>
-            <xsl:for-each select="m:bvar"> 
-                <xsl:value-of select="m:ci"/>
-                <xsl:text>:</xsl:text>
-                <xsl:apply-templates select="m:type">
-                 <xsl:with-param name="current_indent" 
-                    select="$current_indent + 5 + string-length(m:ci)"/>
-                </xsl:apply-templates>
-                <BR/> 
-                <xsl:call-template name="make_indent">
-                 <xsl:with-param name="current_indent" select="$current_indent + 2"/>       
-                </xsl:call-template>
-                <xsl:text>:=</xsl:text>
-                <xsl:apply-templates select="following-sibling::*[position() = 1]">
-                 <xsl:with-param name="current_indent" select="$current_indent + 3"/>
-                </xsl:apply-templates>
- 
-            </xsl:for-each>
-            <BR/>
-              <xsl:call-template name="make_indent">
-               <xsl:with-param name="current_indent" select="$current_indent + 2"/>       
-              </xsl:call-template>
-            <xsl:text>}</xsl:text>
-       </xsl:when>
-       <xsl:otherwise>
-        <xsl:text>COFIX</xsl:text>
-        <xsl:value-of select="m:ci"/>
-        <xsl:text>{</xsl:text>
-        <xsl:for-each select="m:bvar"> 
-            <xsl:value-of select="m:ci"/>
-            <xsl:text>:</xsl:text>
-            <xsl:apply-templates select="m:type"/>
-            <xsl:text>:=</xsl:text>
-            <xsl:apply-templates select="following-sibling::*[position() = 1]"/>
-            <xsl:choose>
-             <xsl:when test="position()=last()">
-             <xsl:text>}</xsl:text>
-             </xsl:when>
-             <xsl:otherwise>
-             <xsl:text>;</xsl:text>
-             </xsl:otherwise>
-            </xsl:choose>
-         </xsl:for-each>
-       </xsl:otherwise>
-       </xsl:choose>
-      </xsl:when>
-      </xsl:choose>
-    <!--  </m:mrow> -->
-</xsl:template>
-
-<!-- LAMBDA -->
-
-<xsl:template match="m:lambda">
-<xsl:param name="current_indent" select="0"/>
-    <xsl:variable name="charlength">
-     <xsl:apply-templates select="*[position()=1]" mode="charcount"/>
-     <!-- <xsl:apply-templates select="." mode="charcount"/> -->
-    </xsl:variable>
-    <!-- <xsl:value-of select="$charlength"/> -->
-     <xsl:choose>
-     <xsl:when test="$charlength > $framewidth">
-       <!-- &#x03bb; -->
-       <FONT FACE="symbol" SIZE="+2" color="red">&#108;</FONT>
-       <xsl:apply-templates select="m:bvar/m:ci"/>
-       <xsl:text>:</xsl:text>
-       <xsl:apply-templates select="m:bvar/m:type">
-        <xsl:with-param name="current_indent" 
-           select="$current_indent + 2 + string-length(m:bvar/m:ci)"/>
-       </xsl:apply-templates><BR/> 
-       <xsl:call-template name="make_indent">
-        <xsl:with-param name="current_indent" select="$current_indent + 2"/>       
-       </xsl:call-template>
-       <xsl:text>.</xsl:text>
-       <xsl:apply-templates select="*[position()=2]">
-        <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-       </xsl:apply-templates>
-     </xsl:when>
-     <xsl:otherwise>
-      <!-- &#x03bb; -->
-      <FONT FACE="symbol" SIZE="+2" color="red">&#108;</FONT>
-      <xsl:apply-templates select="m:bvar/m:ci"/>
-      <xsl:text>:</xsl:text>
-      <xsl:apply-templates select="m:bvar/m:type"/>
-      <xsl:text>.</xsl:text>
-      <xsl:apply-templates select="*[position()=2]"/>
-     </xsl:otherwise>
-     </xsl:choose>
-</xsl:template>
-
-<!-- href -->
-<xsl:template match="m:ci">
- <xsl:choose>
-  <xsl:when test="boolean(@definitionURL)">
-<!-- CSC: non bisogna piu' utilizzare la url, bensi' la uri -->
-<!--   <xsl:variable name="url">
-    <xsl:value-of select="concat(string($absPath),
-     @definitionURL)"/>
-   </xsl:variable>-->
-   <a>
-   <xsl:attribute name="href">
-    <xsl:value-of select="concat(string($header),string(@definitionURL))"/>
-   </xsl:attribute>
-   <xsl:apply-templates/>
-   </a>
-  </xsl:when>
-  <xsl:otherwise>
-   <xsl:value-of select="."/>
-  </xsl:otherwise>
- </xsl:choose>
-</xsl:template>
-
-<!-- COUNTING -->
-
-<xsl:template match="m:ci|m:csymbol" mode="charcount">
-<xsl:param name="incurrent_length" select="0"/> 
-    <xsl:choose>
-    <xsl:when test="$framewidth >= ($incurrent_length + string-length())">
-     <xsl:variable name="siblength"><xsl:apply-templates select="following-sibling::*[position()=1]" mode="charcount"><xsl:with-param name="incurrent_length" select="$incurrent_length + string-length()"/></xsl:apply-templates></xsl:variable>
-     <xsl:choose>
-     <xsl:when test="string($siblength) = &quot;&quot;">
-      <xsl:value-of select="$incurrent_length + string-length()"/>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:value-of select="number($siblength)"/>
-     </xsl:otherwise>
-     </xsl:choose>
-    </xsl:when>
-    <xsl:otherwise>
-     <xsl:value-of select="$incurrent_length + string-length()"/>
-    </xsl:otherwise>
-    </xsl:choose>
-</xsl:template> 
-
-<xsl:template match="*" mode="charcount">
- <xsl:param name="incurrent_length" select="0"/>
- <xsl:choose>
-  <xsl:when test="count(child::*) = 0">
-   <xsl:value-of select="$incurrent_length"/>
-  </xsl:when>
-  <xsl:otherwise>
-    <xsl:variable name="childlength"><xsl:apply-templates select="*[position()=1]" mode="charcount"><xsl:with-param name="incurrent_length" select="$incurrent_length"/></xsl:apply-templates></xsl:variable>
-    <xsl:choose>
-     <xsl:when test="$framewidth >= number($childlength)">
-      <xsl:variable name="siblength"><xsl:apply-templates select="following-sibling::*[position()=1]" mode="charcount"><xsl:with-param name="incurrent_length" select="$childlength"/></xsl:apply-templates></xsl:variable>
-      <xsl:choose>
-       <xsl:when test="string($siblength) = &quot;&quot;">
-        <xsl:value-of select="number($childlength)"/>
-       </xsl:when>
-       <xsl:otherwise>
-        <xsl:value-of select="number($siblength)"/>
-       </xsl:otherwise>
-      </xsl:choose>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:value-of select="number($childlength)"/>
-     </xsl:otherwise>
-    </xsl:choose>
-  </xsl:otherwise>
- </xsl:choose>
-</xsl:template>
-
-
-<!--***********************************************************************-->
-<!-- OBJECTS                                                               -->
-<!--***********************************************************************-->
-
-<!-- DEFINITION -->
-
-<xsl:template match="Definition">
-<xsl:param name="current_indent" select="0"/>
-<p>
-DEFINITION <xsl:value-of select="@name"/>(<xsl:if test="string(./Params) != &quot;&quot;"><xsl:value-of select="Params"/></xsl:if>)<BR/>
-TYPE =<BR/>
-      <xsl:call-template name="make_indent">
-       <xsl:with-param name="current_indent" select="$current_indent + 7"/> 
-      </xsl:call-template>
-       <xsl:apply-templates select="type/*[1]">
-        <xsl:with-param name="current_indent" select="$current_indent + 7"/>
-       </xsl:apply-templates><BR/>
-BODY =<BR/>
-      <xsl:call-template name="make_indent">
-       <xsl:with-param name="current_indent" select="$current_indent + 7"/> 
-      </xsl:call-template>
-       <xsl:apply-templates select="body/*[1]">
-        <xsl:with-param name="current_indent" select="$current_indent + 7"/>
-       </xsl:apply-templates>
-</p>
-</xsl:template>
-
-<!-- AXIOM -->
-
-<xsl:template match="Axiom">
-<xsl:param name="current_indent" select="0"/>
-<p>
-AXIOM <xsl:value-of select="@name"/>(<xsl:if test="string(./Params) != &quot;&quot;"><xsl:value-of select="Params"/></xsl:if>)<BR/>
-TYPE = <xsl:apply-templates select="type/*[1]">
-          <xsl:with-param name="current_indent" select="$current_indent + 7"/>
-       </xsl:apply-templates>
-</p>
-</xsl:template>
-
-<!-- UNFINISHED PROOF -->
-
-<xsl:template match="CurrentProof">
-<xsl:param name="current_indent" select="0"/>
-<p>
-UNFINISHED PROOF <xsl:value-of select="@name"/>(<xsl:if test="string(./Params) != &quot;&quot;"><xsl:value-of select="Params"/></xsl:if>)<BR/>
-THESIS:  <xsl:apply-templates select="type/*[1]">
-          <xsl:with-param name="current_indent" select="$current_indent + 8"/>
-         </xsl:apply-templates><BR/>
-CONJECTURES: 
-      <xsl:for-each select="Conjecture">
-      <BR/>
-      <xsl:call-template name="make_indent">
-       <xsl:with-param name="current_indent" select="$current_indent + 8"/> 
-      </xsl:call-template>
-      <xsl:value-of select="./@no"/> : 
-      <xsl:apply-templates select="./*[1]">
-       <xsl:with-param name="current_indent" select="$current_indent + 11"/>
-      </xsl:apply-templates>
-      </xsl:for-each> 
-      <BR/>
-PROOF:
-      <xsl:apply-templates select="body/*[1]">
-        <xsl:with-param name="current_indent" select="$current_indent + 8"/>
-      </xsl:apply-templates>
-</p>
-</xsl:template>
-
-<!-- MUTUAL INDUCTIVE DEFINITION -->
-
-<xsl:template match="InductiveDefinition">
-<xsl:param name="current_indent" select="0"/>
-<p>
-     <xsl:for-each select="InductiveType">
-         <xsl:choose>
-         <xsl:when test="position() = 1">
-          <xsl:choose>
-          <xsl:when test="string(./@inductive) = &quot;true&quot;">
-          INDUCTIVE DEFINITION 
-          </xsl:when>
-          <xsl:otherwise>
-          COINDUCTIVE DEFINITION 
-          </xsl:otherwise>
-          </xsl:choose>  
-         </xsl:when>
-         <xsl:otherwise>
-          AND 
-         </xsl:otherwise>
-         </xsl:choose>
-         <xsl:value-of select="./@name"/>(<xsl:if test="string(../Params) != &quot;&quot;"><xsl:value-of select="../Params"/></xsl:if>)
-         [
-          <xsl:if test="string(../Param) != &quot;&quot;">         
-           <xsl:for-each select="../Param">
-            <xsl:value-of select="./@name"/>
-            :
-            <xsl:apply-templates select="*"/>
-           </xsl:for-each>
-          </xsl:if>
-         ] <BR/>
-         OF ARITY 
-         <xsl:apply-templates select="./arity/*[1]">
-          <xsl:with-param name="current_indent" select="$current_indent + 9"/>
-         </xsl:apply-templates> <BR/>
-         BUILT FROM:
-      <xsl:for-each select="./Constructor">
-      <BR/>
-      <xsl:call-template name="make_indent">
-       <xsl:with-param name="current_indent" select="$current_indent + 3"/> 
-      </xsl:call-template>
-         <xsl:choose>
-         <xsl:when test="position() = 1">
-         <xsl:text>&#x00A0;&#x00A0;</xsl:text>
-         </xsl:when>
-         <xsl:otherwise>
-         <xsl:text>| </xsl:text>
-         </xsl:otherwise>
-         </xsl:choose>
-         <xsl:value-of select="./@name"/> 
-         <xsl:text>: </xsl:text>
-         <xsl:apply-templates select="./*[1]">
-          <xsl:with-param name="current_indent" select="$current_indent + string-length(./@name) + 4"/>
-         </xsl:apply-templates>
-      </xsl:for-each>
-     </xsl:for-each>
-</p>
-</xsl:template>
-
-<!-- VARIABLE -->
-
-<xsl:template match="Variable">
-<xsl:param name="current_indent" select="0"/>
-<p>
-VARIABLE <xsl:value-of select="@name"/><BR/>
-TYPE = <xsl:apply-templates select="type/*[1]">
-          <xsl:with-param name="current_indent" select="$current_indent + 7"/>
-       </xsl:apply-templates>
-</p>
-</xsl:template>
-
-<!--***********************************************************************-->
-<!-- SECTIONS                                                              -->
-<!--***********************************************************************-->
-
-<!-- SECTION -->
-
-<xsl:template match="SECTION">
-<xsl:param name="current_indent" select="0"/>
- <h1>BEGIN OF SECTION</h1>
-  <xsl:apply-templates/>
- <h1>END OF SECTION</h1>
-</xsl:template>
-
-</xsl:stylesheet> 
diff --git a/helm/style/html_init.xsl b/helm/style/html_init.xsl
deleted file mode 100644
index 9e81b169c..000000000
--- a/helm/style/html_init.xsl
+++ /dev/null
@@ -1,259 +0,0 @@
-<?xml version="1.0"?>
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML">
-
-<!--***********************************************************************--> 
-<!-- INIT style for HTML                                                   -->
-<!-- HELM Group: Asperti, Padovani, Sacerdoti, Schena                      -->
-<!--***********************************************************************--> 
-
-<xsl:variable name="absPath">http://localhost:8081/get?url=</xsl:variable>
-
-
-<!-- BASIC OPERATORS -->
-
- <xsl:template match="m:apply[m:and|m:or|m:eq|m:neq|m:leq|m:lt
-       |m:geq|m:gt|m:plus|m:times]">
-  <xsl:param name="current_indent" select="0"/> 
-  <xsl:param name="width" select="$framewidth"/>
-  <xsl:variable name="uri">
-   <xsl:value-of select="*[1]/@definitionURL"/>
-  </xsl:variable>
-  <xsl:variable name="charlength">
-   <xsl:apply-templates select="*[1]" mode="charcount"/>
-  </xsl:variable>
-  <xsl:variable name="symbol">
-   <xsl:choose>
-    <xsl:when test="m:and">
-     <xsl:value-of select="'&#217;'"/>
-    </xsl:when>
-    <xsl:when test="m:or">
-     <xsl:value-of select="'&#218;'"/>
-    </xsl:when>
-    <xsl:when test="m:eq">
-     <xsl:value-of select="'&#61;'"/>
-    </xsl:when>
-    <xsl:when test="m:neq">
-     <xsl:value-of select="'&#185;'"/>
-    </xsl:when>
-    <xsl:when test="m:leq">
-     <xsl:value-of select="'&#163;'"/>
-    </xsl:when>
-    <xsl:when test="m:lt">
-     <xsl:value-of select="'&#60;'"/>
-    </xsl:when>
-    <xsl:when test="m:geq">
-     <xsl:value-of select="'&#179;'"/>
-    </xsl:when>
-    <xsl:when test="m:gt">
-     <xsl:value-of select="'&#62;'"/>
-    </xsl:when>
-    <xsl:when test="m:plus">
-     <xsl:value-of select="'&#43;'"/>
-    </xsl:when>
-    <xsl:when test="m:times">
-     <xsl:value-of select="'&#42;'"/>
-    </xsl:when>
-   </xsl:choose>
-  </xsl:variable>
-  <xsl:choose>
-    <xsl:when test="$charlength > $framewidth">
-     <xsl:text>(</xsl:text>
-     <xsl:apply-templates select="*[2]">
-      <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-     </xsl:apply-templates>
-     <BR/> 
-     <xsl:call-template name="make_indent">
-      <xsl:with-param name="current_indent" select="$current_indent + 2"/> 
-     </xsl:call-template>
-     <a>
-     <xsl:attribute name="href">
-      <xsl:value-of select="concat(string($header),string($uri))"/>
-     </xsl:attribute>
-     <FONT FACE="symbol" color="blue">
-      <xsl:value-of select="$symbol"/>
-     </FONT>
-     </a>
-     <xsl:apply-templates select="*[3]">
-      <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-     </xsl:apply-templates>
-     <xsl:text>)</xsl:text>
-    </xsl:when>
-    <xsl:otherwise>
-     <xsl:text>(</xsl:text>
-     <xsl:apply-templates select="*[2]"/>
-     <a>
-     <xsl:attribute name="href">
-      <xsl:value-of select="concat(string($header),string($uri))"/>
-     </xsl:attribute>
-     <FONT FACE="symbol" color="blue">
-     <xsl:value-of select="$symbol"/>
-     </FONT>
-     </a>
-     <xsl:apply-templates select="*[3]"/>
-     <xsl:text>)</xsl:text>
-    </xsl:otherwise>
-   </xsl:choose>
- </xsl:template>
-
-<!-- MINUS (can be unary!) -->
-
-<xsl:template match="m:apply[m:minus]">
-  <xsl:param name="current_indent" select="0"/> 
-  <xsl:param name="width" select="$framewidth"/>
-  <xsl:variable name="uri">
-   <xsl:value-of select="*[1]/@definitionURL"/>
-  </xsl:variable>
-  <xsl:choose>
-   <xsl:when test="count(child::*)=2">
-    <a>
-    <xsl:attribute name="href">
-     <xsl:value-of select="concat(string($header),string($uri))"/>
-    </xsl:attribute>
-    <xsl:text>-</xsl:text>
-    </a>
-    <xsl:apply-templates select="*[2]">
-     <xsl:with-param name="current_indent" select="$current_indent + 1"/>
-    </xsl:apply-templates>
-   </xsl:when>
-   <xsl:otherwise>
-    <xsl:variable name="charlength">
-     <xsl:apply-templates select="*[1]" mode="charcount"/>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="$charlength > $framewidth">
-      <xsl:text>(</xsl:text>
-      <xsl:apply-templates select="*[2]">
-       <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-      </xsl:apply-templates>
-      <BR/> 
-      <xsl:call-template name="make_indent">
-       <xsl:with-param name="current_indent" select="$current_indent + 2"/> 
-      </xsl:call-template>
-      <a>
-      <xsl:attribute name="href">
-       <xsl:value-of select="concat(string($header),string($uri))"/>
-      </xsl:attribute>
-      <xsl:text>-</xsl:text>
-      </a>
-      <xsl:apply-templates select="*[3]">
-       <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-      </xsl:apply-templates>
-      <xsl:text>)</xsl:text>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:text>(</xsl:text>
-      <xsl:apply-templates select="*[2]"/>
-      <a>
-      <xsl:attribute name="href">
-       <xsl:value-of select="concat(string($header),string($uri))"/>
-      </xsl:attribute>
-      <xsl:text>-</xsl:text>
-      </a>
-      <xsl:apply-templates select="*[3]"/>
-      <xsl:text>)</xsl:text>
-     </xsl:otherwise>
-    </xsl:choose>
-   </xsl:otherwise>
-  </xsl:choose>
- </xsl:template>
-
-<!-- NOT -->
-
- <xsl:template match="m:apply[m:not]">
-  <xsl:param name="current_indent" select="0"/> 
-  <xsl:param name="width" select="$framewidth"/>
-  <xsl:variable name="uri">
-   <xsl:value-of select="m:not/@definitionURL"/>
-  </xsl:variable>
-     <a>
-     <xsl:attribute name="href">
-      <xsl:value-of select="concat(string($header),string($uri))"/>
-     </xsl:attribute>
-     <FONT FACE="symbol" color="blue">&#216;</FONT>
-     </a>
-     <xsl:apply-templates select="*[2]"/>
- </xsl:template>
-
-<!-- EXISTS -->
-
- <xsl:template match="m:apply[m:exists]">
-  <xsl:param name="current_indent" select="0"/> 
-  <xsl:param name="width" select="$framewidth"/>
-  <xsl:variable name="uri">
-   <xsl:value-of select="m:exists/@definitionURL"/>
-  </xsl:variable>
-  <xsl:variable name="charlength">
-   <xsl:apply-templates select="m:exists" mode="charcount"/>
-  </xsl:variable>
-  <xsl:choose>
-    <xsl:when test="$charlength > $framewidth">
-     <a>
-     <xsl:attribute name="href">
-      <xsl:value-of select="concat(string($header),string($uri))"/>
-     </xsl:attribute>
-     <FONT FACE="symbol" color="blue">&#36;</FONT>
-     </a>
-     <xsl:apply-templates select="m:bvar/m:ci"/>
-     <xsl:text>:</xsl:text>
-     <xsl:apply-templates select="m:condition">
-      <xsl:with-param name="current_indent" select="$current_indent + 2 +
-                                string-length(bvar/ci)"/> 
-     </xsl:apply-templates>
-     <BR/> 
-      <xsl:call-template name="make_indent">
-       <xsl:with-param name="current_indent" select="$current_indent + 2"/> 
-      </xsl:call-template>
-     <xsl:text>.</xsl:text>
-      <xsl:apply-templates select="*[last()]">
-       <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-      </xsl:apply-templates>
-    </xsl:when>
-    <xsl:otherwise>
-     <a>
-     <xsl:attribute name="href">
-      <xsl:value-of select="concat(string($header),string($uri))"/>
-     </xsl:attribute>
-     <FONT FACE="symbol" color="blue">&#36;</FONT>
-     </a>
-     <xsl:apply-templates select="m:bvar/m:ci"/>
-     <xsl:text>:</xsl:text>
-     <xsl:apply-templates select="m:condition"/>
-     <xsl:text>.</xsl:text>
-     <xsl:apply-templates select="*[last()]">
-      <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-     </xsl:apply-templates>
-    </xsl:otherwise>
-   </xsl:choose>
- </xsl:template>
-
-
-
-
-<!-- COUNTING -->
-
-<xsl:template match="m:cn|m:and|m:or|m:not|m:exists|m:eq|m:neq
-   |m:lt|m:leq|m:gt|m:geq|m:plus|m:minus|m:times" mode="charcount">
-<xsl:param name="incurrent_length" select="0"/> 
-    <xsl:choose>
-    <xsl:when test="$framewidth >= ($incurrent_length + string-length())">
-     <xsl:variable name="siblength"><xsl:apply-templates select="following-sibling::*[position()=1]" mode="charcount"><xsl:with-param name="incurrent_length" select="$incurrent_length + string-length()"/></xsl:apply-templates></xsl:variable>
-     <xsl:choose>
-     <xsl:when test="string($siblength) = &quot;&quot;">
-      <xsl:value-of select="$incurrent_length + string-length()"/>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:value-of select="number($siblength)"/>
-     </xsl:otherwise>
-     </xsl:choose>
-    </xsl:when>
-    <xsl:otherwise>
-     <xsl:value-of select="$incurrent_length + string-length()"/>
-    </xsl:otherwise>
-    </xsl:choose>
-</xsl:template> 
-
-</xsl:stylesheet> 
-
-
diff --git a/helm/style/html_reals.xsl b/helm/style/html_reals.xsl
deleted file mode 100644
index 04ff478c5..000000000
--- a/helm/style/html_reals.xsl
+++ /dev/null
@@ -1,234 +0,0 @@
-<?xml version="1.0"?>
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML">
-
-<!--***********************************************************************--> 
-<!-- INIT style for HTML                                                   -->
-<!-- HELM Group: Asperti, Padovani, Sacerdoti, Schena                      -->
-<!--***********************************************************************--> 
-
-<xsl:variable name="absPath">http://localhost:8081/get?url=</xsl:variable>
-
-<!-- LIMIT -->
-
-<xsl:template match="m:apply[m:limit]">
-  <xsl:param name="current_indent" select="0"/> 
-  <xsl:param name="width" select="$framewidth"/>
-  <xsl:variable name="uri">
-   <xsl:value-of select="m:limit/@definitionURL"/>
-  </xsl:variable>
-  <xsl:variable name="charlength">
-   <xsl:apply-templates select="m:limit" mode="charcount"/>
-  </xsl:variable>
-  <xsl:choose>
-    <xsl:when test="$charlength > $framewidth">
-     <a>
-     <xsl:attribute name="href">
-      <xsl:value-of select="concat(string($header),string($uri))"/>
-     </xsl:attribute>
-     <xsl:text>lim</xsl:text>
-     </a>
-     <SUB>
-      <xsl:apply-templates select="m:bvar/m:ci"/>
-      <FONT FACE="symbol" color="blue">&#174;</FONT>
-      <xsl:apply-templates select="m:lowlimit"/>
-     </SUB>
-     <BR/> 
-     <xsl:call-template name="make_indent">
-      <xsl:with-param name="current_indent" select="$current_indent + 5"/> 
-     </xsl:call-template>
-     <xsl:apply-templates select="*[4]">
-      <xsl:with-param name="current_indent" select="$current_indent + 5"/>
-     </xsl:apply-templates>
-    </xsl:when>
-    <xsl:otherwise>
-     <a>
-     <xsl:attribute name="href">
-      <xsl:value-of select="concat(string($header),string($uri))"/>
-     </xsl:attribute>
-     <xsl:text>lim</xsl:text>
-     </a>
-     <SUB>
-      <xsl:apply-templates select="m:bvar/m:ci"/>
-      <FONT FACE="symbol" color="blue">&#174;</FONT>
-      <xsl:apply-templates select="m:lowlimit"/>
-     </SUB>
-     <xsl:apply-templates select="*[4]">
-      <xsl:with-param name="current_indent" select="$current_indent + 5"/>
-     </xsl:apply-templates>
-    </xsl:otherwise>
-   </xsl:choose>
- </xsl:template>
-
-<!-- DIFFERENTIATION -->
-
-<xsl:template match="m:apply[m:diff]">
-  <xsl:param name="current_indent" select="0"/> 
-  <xsl:param name="width" select="$framewidth"/>
-  <xsl:variable name="uri">
-   <xsl:value-of select="m:diff/@definitionURL"/>
-  </xsl:variable>
-     <a>
-     <xsl:attribute name="href">
-      <xsl:value-of select="concat(string($header),string($uri))"/>
-     </xsl:attribute>
-     <SUP>d</SUP>
-      <xsl:text>/</xsl:text>
-     <SUB>
-      <xsl:text>d</xsl:text>
-      <xsl:value-of select="m:bvar/m:ci"/>
-     </SUB>
-     </a>
-     <xsl:apply-templates select="*[3]">
-      <xsl:with-param name="current_indent" select="$current_indent + 5"/>
-     </xsl:apply-templates>
- </xsl:template>
-
-<!-- ABSOLUTE VALUE -->
-<xsl:template match="m:apply[m:abs]">
-  <xsl:param name="current_indent" select="0"/> 
-  <xsl:param name="width" select="$framewidth"/>
-  <xsl:variable name="uri">
-   <xsl:value-of select="m:abs/@definitionURL"/>
-  </xsl:variable>
-  <xsl:text>|</xsl:text>
-  <xsl:apply-templates select="*[2]">
-   <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-  </xsl:apply-templates>
-  <xsl:text>|</xsl:text>
- </xsl:template>
-
-<!-- FACTORIAL -->
-
-<xsl:template match="m:apply[m:fact]">
-  <xsl:param name="current_indent" select="0"/> 
-  <xsl:param name="width" select="$framewidth"/>
-  <xsl:variable name="uri">
-   <xsl:value-of select="m:abs/@definitionURL"/>
-  </xsl:variable>
-  <xsl:apply-templates select="*[2]">
-   <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-  </xsl:apply-templates>
-  <xsl:text>!</xsl:text>
- </xsl:template>
-
-<!-- SQUARE ROOT -->
-
-<xsl:template match="m:apply[m:root]">
-  <xsl:param name="current_indent" select="0"/> 
-  <xsl:param name="width" select="$framewidth"/>
-  <xsl:variable name="uri">
-   <xsl:value-of select="m:abs/@definitionURL"/>
-  </xsl:variable>
-  <xsl:text>(sqr</xsl:text>
-  <xsl:apply-templates select="*[2]">
-   <xsl:with-param name="current_indent" select="$current_indent + 5"/>
-  </xsl:apply-templates>
-  <xsl:text>)</xsl:text>
- </xsl:template>
-
-<!-- POWER -->
-
-<xsl:template match="m:apply[m:power]">
-  <xsl:param name="current_indent" select="0"/> 
-  <xsl:param name="width" select="$framewidth"/>
-  <xsl:variable name="uri">
-   <xsl:value-of select="m:power/@definitionURL"/>
-  </xsl:variable>
-  <xsl:apply-templates select="*[2]"/>
-  <SUP>
-  <xsl:apply-templates select="*[3]"/>
-  </SUP>
- </xsl:template>
-
-<!-- MIN and MAX (binari: estendere) -->
-
- <xsl:template match="m:apply[m:min|m:max]">
-  <xsl:param name="current_indent" select="0"/> 
-  <xsl:param name="width" select="$framewidth"/>
-  <xsl:variable name="uri">
-   <xsl:value-of select="*[1]/@definitionURL"/>
-  </xsl:variable>
-  <xsl:variable name="charlength">
-   <xsl:apply-templates select="*[1]" mode="charcount"/>
-  </xsl:variable>
-  <xsl:variable name="symbol">
-   <xsl:choose>
-    <xsl:when test="m:min">
-     <xsl:value-of select="'min'"/>
-    </xsl:when>
-    <xsl:when test="m:max">
-     <xsl:value-of select="'max'"/>
-    </xsl:when>
-   </xsl:choose>
-  </xsl:variable>
-  <xsl:choose>
-    <xsl:when test="$charlength > $framewidth">
-     <a>
-     <xsl:attribute name="href">
-      <xsl:value-of select="concat(string($header),string($uri))"/>
-     </xsl:attribute>
-     <xsl:value-of select="$symbol"/>
-     </a>
-     <xsl:text>{</xsl:text>
-     <xsl:apply-templates select="*[2]">
-      <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-     </xsl:apply-templates>
-     <xsl:text>,</xsl:text>
-     <BR/> 
-     <xsl:call-template name="make_indent">
-      <xsl:with-param name="current_indent" select="$current_indent + 5"/> 
-     </xsl:call-template>
-     <xsl:apply-templates select="*[3]">
-      <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-     </xsl:apply-templates>
-     <xsl:text>}</xsl:text>
-    </xsl:when>
-    <xsl:otherwise>
-     <a>
-     <xsl:attribute name="href">
-      <xsl:value-of select="concat(string($header),string($uri))"/>
-     </xsl:attribute>
-     <xsl:value-of select="$symbol"/>
-     </a>
-     <xsl:text>{</xsl:text>
-     <xsl:apply-templates select="*[2]"/>
-     <xsl:text>, </xsl:text>
-     <xsl:apply-templates select="*[3]"/>
-     <xsl:text>}</xsl:text>
-    </xsl:otherwise>
-   </xsl:choose>
- </xsl:template>
-
-<!-- COUNTING -->
-
-<xsl:template match="m:abs|m:fact|m:root
-           |m:limit|m:diff|m:min|m:max" mode="charcount">
-<xsl:param name="incurrent_length" select="0"/> 
-    <xsl:choose>
-    <xsl:when test="$framewidth >= ($incurrent_length + string-length())">
-     <xsl:variable name="siblength"><xsl:apply-templates select="following-sibling::*[position()=1]" mode="charcount"><xsl:with-param name="incurrent_length" select="$incurrent_length + string-length()"/></xsl:apply-templates></xsl:variable>
-     <xsl:choose>
-     <xsl:when test="string($siblength) = &quot;&quot;">
-      <xsl:value-of select="$incurrent_length + string-length()"/>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:value-of select="number($siblength)"/>
-     </xsl:otherwise>
-     </xsl:choose>
-    </xsl:when>
-    <xsl:otherwise>
-     <xsl:value-of select="$incurrent_length + string-length()"/>
-    </xsl:otherwise>
-    </xsl:choose>
-</xsl:template> 
-
-</xsl:stylesheet> 
-
-
-
-
-
-
-
diff --git a/helm/style/html_set.xsl b/helm/style/html_set.xsl
deleted file mode 100644
index 6c7f66b1b..000000000
--- a/helm/style/html_set.xsl
+++ /dev/null
@@ -1,463 +0,0 @@
-<?xml version="1.0"?>
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML">
-
-<!--***********************************************************************--> 
-<!-- INIT style for HTML                                                   -->
-<!-- HELM Group: Asperti, Padovani, Sacerdoti, Schena                      -->
-<!--***********************************************************************--> 
-
-<xsl:variable name="absPath">http://localhost:8081/get?url=</xsl:variable>
-
-<!-- IN -->
-
- <xsl:template match="m:apply[m:in]">
-  <xsl:param name="current_indent" select="0"/> 
-  <xsl:param name="width" select="$framewidth"/>
-  <xsl:variable name="uri">
-   <xsl:value-of select="m:in/@definitionURL"/>
-  </xsl:variable>
-  <xsl:variable name="charlength">
-   <xsl:apply-templates select="m:in" mode="charcount"/>
-  </xsl:variable>
-  <xsl:choose>
-    <xsl:when test="$charlength > $framewidth">
-     <xsl:text>(</xsl:text>
-     <xsl:apply-templates select="*[2]">
-      <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-     </xsl:apply-templates>
-     <BR/> 
-     <xsl:call-template name="make_indent">
-      <xsl:with-param name="current_indent" select="$current_indent + 2"/> 
-     </xsl:call-template>
-     <a>
-     <xsl:attribute name="href">
-      <xsl:value-of select="concat(string($header),string($uri))"/>
-     </xsl:attribute>
-     <FONT FACE="symbol" SIZE="+2" color="blue">&#206;</FONT>
-     </a>
-     <xsl:apply-templates select="*[3]">
-      <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-     </xsl:apply-templates>
-     <xsl:text>)</xsl:text>
-    </xsl:when>
-    <xsl:otherwise>
-     <xsl:text>(</xsl:text>
-     <xsl:apply-templates select="*[2]"/>
-     <a>
-     <xsl:attribute name="href">
-      <xsl:value-of select="concat(string($header),string($uri))"/>
-     </xsl:attribute>
-     <FONT FACE="symbol" SIZE="+2" color="blue">&#206;</FONT>
-     </a>
-     <xsl:apply-templates select="*[3]"/>
-     <xsl:text>)</xsl:text>
-    </xsl:otherwise>
-   </xsl:choose>
- </xsl:template>
-
-<!-- NOTIN -->
-
- <xsl:template match="m:apply[m:notin]">
-  <xsl:param name="current_indent" select="0"/> 
-  <xsl:param name="width" select="$framewidth"/>
-  <xsl:variable name="uri">
-   <xsl:value-of select="m:notin/@definitionURL"/>
-  </xsl:variable>
-  <xsl:variable name="charlength">
-   <xsl:apply-templates select="m:notin" mode="charcount"/>
-  </xsl:variable>
-  <xsl:choose>
-    <xsl:when test="$charlength > $framewidth">
-     <xsl:text>(</xsl:text>
-     <xsl:apply-templates select="*[2]">
-      <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-     </xsl:apply-templates>
-     <BR/> 
-     <xsl:call-template name="make_indent">
-      <xsl:with-param name="current_indent" select="$current_indent + 2"/> 
-     </xsl:call-template>
-     <FONT FACE="symbol" SIZE="+2" color="blue">&#207;</FONT>
-     <xsl:apply-templates select="*[3]">
-      <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-     </xsl:apply-templates>
-     <xsl:text>)</xsl:text>
-    </xsl:when>
-    <xsl:otherwise>
-     <xsl:text>(</xsl:text>
-     <xsl:apply-templates select="*[2]"/>
-     <FONT FACE="symbol" SIZE="+2" color="blue">&#207;</FONT>
-     <xsl:apply-templates select="*[3]"/>
-     <xsl:text>)</xsl:text>
-    </xsl:otherwise>
-   </xsl:choose>
- </xsl:template>
-
-<!-- SET -->
-
- <xsl:template match="m:set">
-  <xsl:param name="current_indent" select="0"/> 
-  <xsl:param name="width" select="$framewidth"/>
-  <xsl:variable name="uri">
-   <xsl:value-of select="concat(string($absPath), @definitionURL)"/>
-  </xsl:variable>
-  <xsl:choose>
-   <xsl:when test="count(child::*) = 0">
-    <FONT FACE="symbol" color="blue">&#198;</FONT>
-   </xsl:when>
-   <xsl:otherwise>
-    <xsl:variable name="charlength">
-     <xsl:apply-templates select="." mode="charcount"/>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="name(*[1]) = 'm:bvar'">
-      <xsl:choose>
-       <xsl:when test="$charlength > $framewidth">
-        <xsl:text>{</xsl:text>
-        <xsl:apply-templates select="m:bvar/m:ci"/>
-        <xsl:text>:</xsl:text>
-        <xsl:apply-templates select="m:bvar/m:type">
-         <xsl:with-param name="current_indent" 
-           select="$current_indent + 2 + string-length(m:bvar/m:ci)"/>
-        </xsl:apply-templates><BR/>
-        <xsl:call-template name="make_indent">
-         <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-        </xsl:call-template>
-        <xsl:text>|</xsl:text>
-        <xsl:apply-templates select="m:condition">
-         <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-        </xsl:apply-templates>
-        <xsl:text>}</xsl:text>
-       </xsl:when>
-       <xsl:otherwise>
-        <xsl:text>{</xsl:text>
-        <xsl:apply-templates select="m:bvar/m:ci"/>
-        <xsl:text>:</xsl:text>
-        <xsl:apply-templates select="m:bvar/m:type"/>
-        <xsl:text>|</xsl:text>
-        <xsl:apply-templates select="*[position()=2]"/>
-        <xsl:text>}</xsl:text>
-       </xsl:otherwise>
-      </xsl:choose>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:choose>
-       <xsl:when test="$charlength > $framewidth">
-        <xsl:text>{</xsl:text>
-         <xsl:apply-templates select="*[position()=1]">
-          <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-         </xsl:apply-templates>
-         <xsl:for-each select="*[position()>1]">
-          <xsl:text>,</xsl:text>
-          <BR/>
-          <xsl:call-template name="make_indent">
-           <xsl:with-param name="current_indent" select="$current_indent + 2"/> 
-          </xsl:call-template>
-          <xsl:apply-templates select=".">
-           <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-          </xsl:apply-templates>
-         </xsl:for-each>
-         <xsl:text>}</xsl:text>
-        </xsl:when>
-        <xsl:otherwise>
-        <xsl:text>{</xsl:text>
-         <xsl:for-each select="*">
-          <xsl:apply-templates select="."/>
-          <xsl:choose>
-           <xsl:when test="position() = last()">
-            <xsl:text>}</xsl:text>
-           </xsl:when>
-           <xsl:otherwise>
-            <xsl:text>,</xsl:text>
-           </xsl:otherwise>
-          </xsl:choose>
-         </xsl:for-each>
-        </xsl:otherwise>
-       </xsl:choose>
-      </xsl:otherwise>
-     </xsl:choose>
-    </xsl:otherwise>
-   </xsl:choose>
- </xsl:template>
-
-
-<!-- INTERSECTION -->
-
-<xsl:template match="m:apply[m:intersect]">
-  <xsl:param name="current_indent" select="0"/> 
-  <xsl:param name="width" select="$framewidth"/>
-  <xsl:variable name="uri">
-   <xsl:value-of select="m:intersect/@definitionURL"/>
-  </xsl:variable>
-  <xsl:variable name="charlength">
-   <xsl:apply-templates select="m:intersect" mode="charcount"/>
-  </xsl:variable>
-  <xsl:choose>
-    <xsl:when test="$charlength > $framewidth">
-     <xsl:text>(</xsl:text>
-     <xsl:apply-templates select="*[2]">
-      <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-     </xsl:apply-templates>
-     <BR/> 
-     <xsl:call-template name="make_indent">
-      <xsl:with-param name="current_indent" select="$current_indent + 2"/> 
-     </xsl:call-template>
-     <a>
-     <xsl:attribute name="href">
-      <xsl:value-of select="concat(string($header),string($uri))"/>
-     </xsl:attribute>
-     <FONT FACE="symbol" SIZE="+2" color="blue">&#199;</FONT>
-     </a>
-     <xsl:apply-templates select="*[3]">
-      <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-     </xsl:apply-templates>
-     <xsl:text>)</xsl:text>
-    </xsl:when>
-    <xsl:otherwise>
-     <xsl:text>(</xsl:text>
-     <xsl:apply-templates select="*[2]"/>
-     <a>
-     <xsl:attribute name="href">
-      <xsl:value-of select="concat(string($header),string($uri))"/>
-     </xsl:attribute>
-     <FONT FACE="symbol" SIZE="+2" color="blue">&#199;</FONT>
-     </a>
-     <xsl:apply-templates select="*[3]"/>
-     <xsl:text>)</xsl:text>
-    </xsl:otherwise>
-   </xsl:choose>
- </xsl:template>
-
-<!-- UNION -->
-
-<xsl:template match="m:apply[m:union]">
-  <xsl:param name="current_indent" select="0"/> 
-  <xsl:param name="width" select="$framewidth"/>
-  <xsl:variable name="uri">
-   <xsl:value-of select="m:union/@definitionURL"/>
-  </xsl:variable>
-  <xsl:variable name="charlength">
-   <xsl:apply-templates select="m:union" mode="charcount"/>
-  </xsl:variable>
-  <xsl:choose>
-    <xsl:when test="$charlength > $framewidth">
-     <xsl:text>(</xsl:text>
-     <xsl:apply-templates select="*[2]">
-      <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-     </xsl:apply-templates>
-     <BR/> 
-     <xsl:call-template name="make_indent">
-      <xsl:with-param name="current_indent" select="$current_indent + 2"/> 
-     </xsl:call-template>
-     <a>
-     <xsl:attribute name="href">
-      <xsl:value-of select="concat(string($header),string($uri))"/>
-     </xsl:attribute>
-     <FONT FACE="symbol" SIZE="+2" color="blue">&#200;</FONT>
-     </a>
-     <xsl:apply-templates select="*[3]">
-      <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-     </xsl:apply-templates>
-     <xsl:text>)</xsl:text>
-    </xsl:when>
-    <xsl:otherwise>
-     <xsl:text>(</xsl:text>
-     <xsl:apply-templates select="*[2]"/>
-     <a>
-     <xsl:attribute name="href">
-      <xsl:value-of select="concat(string($header),string($uri))"/>
-     </xsl:attribute>
-     <FONT FACE="symbol" SIZE="+2" color="blue">&#200;</FONT>
-     </a>
-     <xsl:apply-templates select="*[3]"/>
-     <xsl:text>)</xsl:text>
-    </xsl:otherwise>
-   </xsl:choose>
- </xsl:template>
-
-<!-- SUBSET -->
-<xsl:template match="m:apply[m:subset]">
-  <xsl:param name="current_indent" select="0"/> 
-  <xsl:param name="width" select="$framewidth"/>
-  <xsl:variable name="uri">
-   <xsl:value-of select="m:subset/@definitionURL"/>
-  </xsl:variable>
-  <xsl:variable name="charlength">
-   <xsl:apply-templates select="m:subset" mode="charcount"/>
-  </xsl:variable>
-  <xsl:choose>
-    <xsl:when test="$charlength > $framewidth">
-     <xsl:text>(</xsl:text>
-     <xsl:apply-templates select="*[2]">
-      <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-     </xsl:apply-templates>
-     <BR/> 
-     <xsl:call-template name="make_indent">
-      <xsl:with-param name="current_indent" select="$current_indent + 2"/> 
-     </xsl:call-template>
-     <a>
-     <xsl:attribute name="href">
-      <xsl:value-of select="concat(string($header),string($uri))"/>
-     </xsl:attribute>
-     <FONT FACE="symbol" SIZE="+2" color="blue">&#205;</FONT>
-     </a>
-     <xsl:apply-templates select="*[3]">
-      <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-     </xsl:apply-templates>
-     <xsl:text>)</xsl:text>
-    </xsl:when>
-    <xsl:otherwise>
-     <xsl:text>(</xsl:text>
-     <xsl:apply-templates select="*[2]"/>
-     <a>
-     <xsl:attribute name="href">
-      <xsl:value-of select="concat(string($header),string($uri))"/>
-     </xsl:attribute>
-     <FONT FACE="symbol" SIZE="+2" color="blue">&#205;</FONT>
-     </a>
-     <xsl:apply-templates select="*[3]"/>
-     <xsl:text>)</xsl:text>
-    </xsl:otherwise>
-   </xsl:choose>
- </xsl:template>
-
-<!-- PRSUBSET -->
-<xsl:template match="m:apply[m:prsubset]">
-  <xsl:param name="current_indent" select="0"/> 
-  <xsl:param name="width" select="$framewidth"/>
-  <xsl:variable name="uri">
-   <xsl:value-of select="m:prsubset/@definitionURL"/>
-  </xsl:variable>
-  <xsl:variable name="charlength">
-   <xsl:apply-templates select="m:prsubset" mode="charcount"/>
-  </xsl:variable>
-  <xsl:choose>
-    <xsl:when test="$charlength > $framewidth">
-     <xsl:text>(</xsl:text>
-     <xsl:apply-templates select="*[2]">
-      <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-     </xsl:apply-templates>
-     <BR/> 
-     <xsl:call-template name="make_indent">
-      <xsl:with-param name="current_indent" select="$current_indent + 2"/> 
-     </xsl:call-template>
-     <a>
-     <xsl:attribute name="href">
-      <xsl:value-of select="concat(string($header),string($uri))"/>
-     </xsl:attribute>
-     <FONT FACE="symbol" SIZE="+2" color="blue">&#204;</FONT>
-     </a>
-     <xsl:apply-templates select="*[3]">
-      <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-     </xsl:apply-templates>
-     <xsl:text>)</xsl:text>
-    </xsl:when>
-    <xsl:otherwise>
-     <xsl:text>(</xsl:text>
-     <xsl:apply-templates select="*[2]"/>
-     <a>
-     <xsl:attribute name="href">
-      <xsl:value-of select="concat(string($header),string($uri))"/>
-     </xsl:attribute>
-     <FONT FACE="symbol" SIZE="+2" color="blue">&#204;</FONT>
-     </a>
-     <xsl:apply-templates select="*[3]"/>
-     <xsl:text>)</xsl:text>
-    </xsl:otherwise>
-   </xsl:choose>
- </xsl:template>
-
-
-<!-- SETDIFF -->
-
-<xsl:template match="m:apply[m:setdiff]">
-  <xsl:param name="current_indent" select="0"/> 
-  <xsl:param name="width" select="$framewidth"/>
-  <xsl:variable name="uri">
-   <xsl:value-of select="m:setdiff/@definitionURL"/>
-  </xsl:variable>
-  <xsl:variable name="charlength">
-   <xsl:apply-templates select="m:setdiff" mode="charcount"/>
-  </xsl:variable>
-  <xsl:choose>
-    <xsl:when test="$charlength > $framewidth">
-     <xsl:text>(</xsl:text>
-     <xsl:apply-templates select="*[2]">
-      <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-     </xsl:apply-templates>
-     <BR/> 
-     <xsl:call-template name="make_indent">
-      <xsl:with-param name="current_indent" select="$current_indent + 2"/> 
-     </xsl:call-template>
-     <a>
-     <xsl:attribute name="href">
-      <xsl:value-of select="concat(string($header),string($uri))"/>
-     </xsl:attribute>
-     <xsl:text>/</xsl:text>
-     </a>
-     <xsl:apply-templates select="*[3]">
-      <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-     </xsl:apply-templates>
-     <xsl:text>)</xsl:text>
-    </xsl:when>
-    <xsl:otherwise>
-     <xsl:text>(</xsl:text>
-     <xsl:apply-templates select="*[2]"/>
-     <a>
-     <xsl:attribute name="href">
-      <xsl:value-of select="concat(string($header),string($uri))"/>
-     </xsl:attribute>
-     <xsl:text>/</xsl:text>
-     </a>
-     <xsl:apply-templates select="*[3]"/>
-     <xsl:text>)</xsl:text>
-    </xsl:otherwise>
-   </xsl:choose>
- </xsl:template>
-
-<!-- CARD -->
-<xsl:template match="m:apply[m:card]">
-  <xsl:param name="current_indent" select="0"/> 
-  <xsl:param name="width" select="$framewidth"/>
-  <xsl:variable name="uri">
-   <xsl:value-of select="m:card/@definitionURL"/>
-  </xsl:variable>
-  <xsl:text>|</xsl:text>
-  <xsl:apply-templates select="*[2]">
-   <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-  </xsl:apply-templates>
-  <xsl:text>|</xsl:text>
- </xsl:template>
-
-<!-- COUNTING -->
-
-<xsl:template match="m:in|m:notin|m:intersect|m:union
-           |m:subset|m:prsubset|m:setdiff|m:card" mode="charcount">
-<xsl:param name="incurrent_length" select="0"/> 
-    <xsl:choose>
-    <xsl:when test="$framewidth >= ($incurrent_length + string-length())">
-     <xsl:variable name="siblength"><xsl:apply-templates select="following-sibling::*[position()=1]" mode="charcount"><xsl:with-param name="incurrent_length" select="$incurrent_length + string-length()"/></xsl:apply-templates></xsl:variable>
-     <xsl:choose>
-     <xsl:when test="string($siblength) = &quot;&quot;">
-      <xsl:value-of select="$incurrent_length + string-length()"/>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:value-of select="number($siblength)"/>
-     </xsl:otherwise>
-     </xsl:choose>
-    </xsl:when>
-    <xsl:otherwise>
-     <xsl:value-of select="$incurrent_length + string-length()"/>
-    </xsl:otherwise>
-    </xsl:choose>
-</xsl:template> 
-
-</xsl:stylesheet> 
-
-
-
-
-
-
-
diff --git a/helm/style/mml2mmlv1_0.xsl b/helm/style/mml2mmlv1_0.xsl
deleted file mode 100644
index 67e1accfb..000000000
--- a/helm/style/mml2mmlv1_0.xsl
+++ /dev/null
@@ -1,1957 +0,0 @@
-<?xml version="1.0"?>
-
-<!-- ====================================================== -->
-<!-- XSL Transform of MathML content to MathML presentation -->
-<!--    By Igor Rodionov, Computer Science Department of    -->
-<!--   the University of Western Ontario, London, Canada    -->
-<!--  Complies with the W3C Working Draft from Dec.3, 1999  -->
-<!--             Version x.xx from Feb. 18, 2000            -->
-<!--              Comments to:  igor@csd.uwo.ca             -->
-<!--                                                        -->
-<!-- (C) Copyright 1999, 2000 Symbolic Computation          -->
-<!--     Laboratory, University of Western Ontario.         -->
-<!-- ====================================================== -->
-
-<!-- ====================================================== -->
-<!--  May 11, 2000 - HELM group:                            -->
-<!--  Added the namespace prefix to all the output elements -->
-<!--  Changed the mml prefix into m                         -->
-<!--  Swapped math element out of the semantic element      -->
-<!--  Added the declaration of the xlink namespace          --> 
-<!-- ====================================================== -->
-
-<xsl:stylesheet id="mml2mml"
-                version="1.0"
-                xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                xmlns:m="http://www.w3.org/1998/Math/MathML"
-                xmlns:xlink="http://www.w3.org/1999/xlink"
-                xmlns:helm="http://www.cs.unibo.it/helm">
-
-<xsl:output method="xml" indent="yes" encoding="iso-8859-1"/>
-
-<!-- ***************************************************** -->
-<!--  Parameters affectin' stylesheet's run-time behavior  -->
-<!-- ***************************************************** -->
-
-<!-- SEM_SW: -1 - strip off all semantics
-             0  - pass semantics "as is" (default)
-             1  - add semantics at top level only
-             2  - add semantics at all levels
-             3  - semantics at top level with cross-references
--->
-<!-- HELM: SEM_SW was 0 -->
-<xsl:param name="SEM_SW" select="1"/>
-
-<!-- Miscellaneous Variable Definitions -->
-
-<xsl:variable name="NO" select="0"/>
-<xsl:variable name="YES" select="1"/>
-<xsl:variable name="PAR_NO" select="-7"/>
-<xsl:variable name="PAR_YES" select="-5"/>
-<xsl:variable name="PAR_SAME" select="-3"/>
-<xsl:variable name="NO_PARAM" select="-1"/>
-
-<!-- Operator Precedence Definitions -->
-
-<xsl:variable name="NO_PREC" select="0"/>
-<xsl:variable name="UNION_PREC" select="1"/>
-<xsl:variable name="SETDIFF_PREC" select="1"/>
-<xsl:variable name="INTERSECT_PREC" select="3"/>
-<xsl:variable name="OR_PREC" select="5"/>
-<xsl:variable name="XOR_PREC" select="5"/>
-<xsl:variable name="AND_PREC" select="7"/>
-<xsl:variable name="PLUS_PREC" select="9"/>
-<xsl:variable name="MINUS_PREC" select="9"/>
-<xsl:variable name="MUL_PREC" select="11"/>
-<xsl:variable name="DIV_PREC" select="11"/>
-<xsl:variable name="NEG_PREC" select="13"/>
-<xsl:variable name="FUNCTION_PREC" select="99"/>
-
-<!-- AUXILIARY FUNCTIONS FOR BACKWARD POINTERS AND REFS (by andrea) -->
-
-<xsl:template name = "insert_xref">
- <xsl:if test="@helm:xref">
-  <xsl:attribute name="helm:xref">
-   <xsl:value-of select="@helm:xref"/>
-  </xsl:attribute>
- </xsl:if>
-</xsl:template>
-
-<xsl:template name = "insert">
- <xsl:if test="@definitionURL">
-  <xsl:attribute name="xlink:href">
-   <xsl:value-of select="@definitionURL"/>
-  </xsl:attribute>
- </xsl:if>
- <xsl:if test="@helm:xref">
-  <xsl:attribute name="helm:xref">
-   <xsl:value-of select="@helm:xref"/>
-  </xsl:attribute>
- </xsl:if>
-</xsl:template>
-
-<!-- for use inside m:apply -->
-<xsl:template name = "insert1">
- <xsl:if test="*[1]/@definitionURL">
-  <xsl:attribute name="xlink:href">
-   <xsl:value-of select="*[1]/@definitionURL"/>
-  </xsl:attribute>
- </xsl:if>
- <xsl:if test="*[1]/@helm:xref">
-  <xsl:attribute name="helm:xref">
-   <xsl:value-of select="*[1]/@helm:xref"/>
-  </xsl:attribute>
- </xsl:if>
-</xsl:template>
-
-<!-- For use inside "for-each" -->
-<xsl:template name = "insert2">
- <xsl:if test="../*[1]/@definitionURL">
-  <xsl:attribute name="xlink:href">
-   <xsl:value-of select="../*[1]/@definitionURL"/>
-  </xsl:attribute>
- </xsl:if>
- <xsl:if test="../*[1]/@helm:xref">
-  <xsl:attribute name="helm:xref">
-   <xsl:value-of select="../*[1]/@helm:xref"/>
-  </xsl:attribute>
- </xsl:if>
-</xsl:template>
-
-<!-- THE TOPMOST ELEMENT: MATH -->
-
-<xsl:template match = "m:math">
-  <xsl:choose>
-    <xsl:when test="$SEM_SW>0">
-<!-- HELM: deleted math (we have already inserted at object level) -->
-     <!--<m:math>-->
-      <m:semantics>
-          <xsl:apply-templates mode = "semantics"/>
-       <m:annotation-xml encoding="MathML">
-          <xsl:copy-of select = "*"/>
-       </m:annotation-xml>
-      </m:semantics>
-     <!--</m:math>-->
-    </xsl:when>
-    <xsl:otherwise>
-      <!--<m:math>-->
-        <xsl:apply-templates mode = "semantics"/>
-      <!--</m:math>-->  
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<!-- SEMANTICS -->
-
-<xsl:template match = "m:*" mode = "semantics">
-  <xsl:param name="IN_PREC" select="$NO_PREC"/>
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:choose>
-    <xsl:when test="$SEM_SW=-1 and self::m:semantics">
-      <xsl:apply-templates select="*[1]">
-        <xsl:with-param name="IN_PREC" select="$IN_PREC"/>
-        <xsl:with-param name="PARAM" select="$PARAM"/>
-        <xsl:with-param name="PAREN" select="$PAREN"/>
-        <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-      </xsl:apply-templates>
-    </xsl:when>
-    <xsl:when test="$SEM_SW=0 and self::m:semantics">
-      <m:semantics>
-        <xsl:apply-templates select="*[1]">
-          <xsl:with-param name="IN_PREC" select="$IN_PREC"/>
-          <xsl:with-param name="PARAM" select="$PARAM"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-        <xsl:copy-of select="m:annotation-xml"/>
-      </m:semantics>
-    </xsl:when>
-    <xsl:when test="$SEM_SW=2">
-      <m:semantics>
-        <xsl:choose>
-          <xsl:when test="self::m:semantics">
-            <xsl:apply-templates select="*[1]">
-              <xsl:with-param name="IN_PREC" select="$IN_PREC"/>
-              <xsl:with-param name="PARAM" select="$PARAM"/>
-              <xsl:with-param name="PAREN" select="$PAREN"/>
-              <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-            </xsl:apply-templates>
-            <xsl:copy-of select="m:annotation-xml"/>
-          </xsl:when>
-          <xsl:otherwise>
-            <xsl:apply-templates select=".">
-              <xsl:with-param name="IN_PREC" select="$IN_PREC"/>
-              <xsl:with-param name="PARAM" select="$PARAM"/>
-              <xsl:with-param name="PAREN" select="$PAREN"/>
-              <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-            </xsl:apply-templates>
-            <m:annotation-xml encoding="MathML">
-              <xsl:copy-of select="."/>
-            </m:annotation-xml>
-          </xsl:otherwise>
-        </xsl:choose>
-      </m:semantics>
-    </xsl:when>
-    <xsl:when test="$SEM_SW=3 and @id">
-      <m:mrow idref="{@id}">
-        <xsl:apply-templates select=".">
-          <xsl:with-param name="IN_PREC" select="$IN_PREC"/>
-          <xsl:with-param name="PARAM" select="$PARAM"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mrow>
-    </xsl:when>
-    <xsl:otherwise>
-      <xsl:apply-templates select=".">
-        <xsl:with-param name="IN_PREC" select="$IN_PREC"/>
-        <xsl:with-param name="PARAM" select="$PARAM"/>
-        <xsl:with-param name="PAREN" select="$PAREN"/>
-        <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-      </xsl:apply-templates>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:semantics">
-  <xsl:apply-templates select="*[1]" mode = "semantics"/>
-</xsl:template>
-
-
-<!-- BASIC ELEMENTS -->
-
-<xsl:template match = "m:cn">
-  <xsl:param name="IN_PREC" select="$NO_PREC"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:choose>
-    <xsl:when test=". &lt; 0 and $IN_PREC &gt; 0 and $PAREN=$PAR_NO and $PAR_NO_IGNORE=$NO">
-      <m:mfenced separators="">
-        <xsl:apply-templates select="." mode="cn"/>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:otherwise>
-      <xsl:apply-templates select="." mode="cn"/>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:cn" mode="cn">
-  <xsl:choose>
-    <xsl:when test="@base and (not(@type) or @type='integer' or @type='real')">
-      <m:msub>
-        <m:mn> <xsl:apply-templates mode = "semantics"/> </m:mn>
-        <m:mn> <xsl:value-of select="@base"/> </m:mn>
-      </m:msub>
-    </xsl:when>
-    <xsl:when test="@type='complex' and not(@base) and child::m:sep[1]">
-      <m:mfenced separators="">
-        <m:mn> <xsl:apply-templates select="text()[1]" mode = "semantics"/> </m:mn>
-        <xsl:if test="text()[2] &lt; 0">
-          <m:mo>-</m:mo>
-          <m:mn> <xsl:value-of select="-text()[2]"/> </m:mn>
-        </xsl:if>
-        <xsl:if test="not(text()[2] &lt; 0)">
-          <m:mo>+</m:mo>
-          <xsl:apply-templates select="text()[2]" mode = "semantics"/>
-        </xsl:if>
-        <m:mo> <mchar name="InvisibleTimes"/> </m:mo>
-        <m:mo>i</m:mo>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:when test="@type='complex' and @base and child::m:sep[1]">
-      <m:msub>
-        <m:mfenced separators="">
-          <m:mn> <xsl:apply-templates select="text()[1]" mode = "semantics"/> </m:mn>
-          <xsl:if test="text()[2] &lt; 0">
-            <m:mo>-</m:mo>
-            <m:mn> <xsl:value-of select="-text()[2]"/> </m:mn>
-          </xsl:if>
-          <xsl:if test="not(text()[2] &lt; 0)">
-            <m:mo>+</m:mo>
-            <m:mn> <xsl:apply-templates select="text()[2]" mode = "semantics"/> </m:mn>
-          </xsl:if>
-          <m:mo> <mchar name="InvisibleTimes"/> </m:mo>
-          <m:mo>i</m:mo>
-        </m:mfenced>
-        <m:mn> <xsl:value-of select="@base"/> </m:mn>
-      </m:msub>
-    </xsl:when>
-    <xsl:when test="@type='rational' and not(@base) and child::m:sep[1]">
-      <m:mrow>
-        <m:mn> <xsl:apply-templates select="text()[1]" mode = "semantics"/> </m:mn>
-        <m:mo>/</m:mo>
-        <m:mn> <xsl:apply-templates select="text()[2]" mode = "semantics"/> </m:mn>
-      </m:mrow>
-    </xsl:when>
-    <xsl:when test="@type='rational' and @base and child::m:sep[1]">
-      <m:msub>
-        <m:mfenced separators="">
-          <m:mn> <xsl:apply-templates select="text()[1]" mode = "semantics"/> </m:mn>
-          <m:mo>/</m:mo>
-          <m:mn> <xsl:apply-templates select="text()[2]" mode = "semantics"/> </m:mn>
-        </m:mfenced>
-        <m:mn> <xsl:value-of select="@base"/> </m:mn>
-      </m:msub>
-    </xsl:when>
-    <xsl:when test="@type='polar' and not(@base) and child::m:sep[1]">
-      <m:mrow>
-        <m:mo>Polar</m:mo>
-        <m:mfenced separators=",">
-          <m:mn> <xsl:apply-templates select="text()[1]" mode = "semantics"/> </m:mn>
-          <m:mn> <xsl:apply-templates select="text()[2]" mode = "semantics"/> </m:mn>
-        </m:mfenced>
-      </m:mrow>
-    </xsl:when>
-    <xsl:when test="@type='polar' and @base and child::m:sep[1]">
-      <m:msub>
-        <m:mrow>
-          <m:mo>Polar</m:mo>
-          <m:mfenced separators=",">
-            <m:mn> <xsl:apply-templates select="text()[1]" mode = "semantics"/> </m:mn>
-            <m:mn> <xsl:apply-templates select="text()[2]" mode = "semantics"/> </m:mn>
-          </m:mfenced>
-        </m:mrow>
-        <m:mn> <xsl:value-of select="@base"/> </m:mn>
-      </m:msub>
-   </xsl:when>
-    <xsl:otherwise>
-      <m:mn> 
-       <xsl:call-template name="insert"/>
-       <xsl:apply-templates mode = "semantics"/> 
-      </m:mn>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:ci">
-  <xsl:choose>
-    <xsl:when test="@type='vector' or @type=matrix or @type=set">
-      <m:mi fontweight="bold"> <xsl:apply-templates mode = "semantics"/> </m:mi>
-    </xsl:when>
-    <xsl:otherwise>
-     <m:mi> 
-      <xsl:call-template name="insert"/>
-      <xsl:apply-templates mode = "semantics"/> 
-     </m:mi>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:csymbol">
-  <xsl:choose>
-    <xsl:when test="*[1]">
-      <xsl:copy-of select = "*"/>
-    </xsl:when>
-    <xsl:otherwise>
-      <m:mo> <xsl:apply-templates mode = "semantics"/> </m:mo>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-
-<!-- BASIC CONTENT ELEMENTS -->
-
-<xsl:template match = "m:apply[m:fn[1]]">
-  <m:mrow>
-    <xsl:apply-templates select = "m:fn[1]" mode = "semantics"/>
-    <m:mfenced separators=",">
-      <xsl:apply-templates select = "*[position()>1]" mode = "semantics"/>
-    </m:mfenced>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:fn">
-  <xsl:apply-templates select = "*[1]" mode = "semantics">
-    <xsl:with-param name="IN_PREC" select="$FUNCTION_PREC"/>
-  </xsl:apply-templates>
-</xsl:template>
-
-<xsl:template match = "m:interval">
-  <xsl:choose>
-    <xsl:when test="@closure='closed'">
-      <m:mfenced open="[" close="]" separators=",">
-        <xsl:apply-templates mode = "semantics"/>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:when test="@closure='open'">
-      <m:mfenced separators=",">
-        <xsl:apply-templates mode = "semantics"/>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:when test="@closure='open-closed'">
-      <m:mfenced open="(" close="]" separators=",">
-        <xsl:apply-templates mode = "semantics"/>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:when test="@closure='closed-open'">
-      <m:mfenced open="[" close=")" separators=",">
-        <xsl:apply-templates mode = "semantics"/>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:otherwise>
-      <m:mfenced open="[" close="]" separators=",">
-        <xsl:apply-templates mode = "semantics"/>
-      </m:mfenced>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:*[1][self::m:apply[m:inverse[1]]]]">
-  <m:mrow>
-    <xsl:apply-templates select = "*[1]" mode = "semantics"/>
-    <m:mfenced separators=",">
-      <xsl:apply-templates select = "*[position()>1]" mode = "semantics"/>
-    </m:mfenced>
- </m:mrow>
-</xsl:template>
-
-<!-- These "semantical" Transformations are REALLY questionable.
-     Andrea -->
-
-<xsl:template match = "m:apply[*[1][self::m:inverse]]">
-  <xsl:choose>
-    <xsl:when test="*[2]=m:exp">
-      <m:mo>ln</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:ln | m:log">
-      <m:mo>exp</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:sin">
-      <m:mo>arcsin</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:cos">
-      <m:mo>arccos</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:tan">
-      <m:mo>arctan</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:sec">
-      <m:mo>arcsec</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:csc">
-      <m:mo>arccsc</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:cot">
-      <m:mo>arccot</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:sinh">
-      <m:mo>arcsinh</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:cosh">
-      <m:mo>arccosh</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:tanh">
-      <m:mo>arctanh</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:sech">
-      <m:mo>arcsech</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:csch">
-      <m:mo>arccsch</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:coth">
-      <m:mo>arccoth</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:arcsin">
-      <m:mo>sin</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:arccos">
-      <m:mo>cos</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:arctan">
-      <m:mo>tan</m:mo>
-    </xsl:when>
-    <xsl:otherwise>
-      <m:msup>
-        <xsl:apply-templates select = "*[2]" mode = "semantics"/>
-        <m:mfenced>
-          <m:mn>-1</m:mn>
-        </m:mfenced>
-      </m:msup>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:sep"/>
-
-<xsl:template match = "m:condition">
-  <xsl:choose>
-    <xsl:when test="parent::m:apply[m:forall[1]]"/>
-    <xsl:otherwise>
-      <xsl:if test="not(*[2])">
-        <xsl:apply-templates mode = "semantics"/>
-      </xsl:if>
-      <xsl:if test="*[2]">
-        <m:mrow>
-          <xsl:apply-templates mode = "semantics"/>
-        </m:mrow>
-      </xsl:if>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:declare"/>
-
-<xsl:template match = "m:lambda">
-  <m:mrow>
-    <m:mo> &#x039b; </m:mo>
-    <m:mfenced separators=",">
-      <xsl:for-each select = "*">
-        <xsl:choose>
-          <xsl:when test="self::m:ci or self::m:cn">
-            <xsl:apply-templates select = "." mode="semantics"/>
-          </xsl:when>
-          <xsl:otherwise>
-            <m:mrow>
-              <xsl:apply-templates select = "." mode="semantics"/>
-            </m:mrow>
-          </xsl:otherwise>
-        </xsl:choose>
-      </xsl:for-each>
-    </m:mfenced>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:*[1][self::m:apply[m:compose[1]]]]">
-  <m:mrow>
-    <xsl:apply-templates select = "*[1]" mode = "semantics"/>
-    <m:mfenced separators=",">
-      <xsl:apply-templates select = "*[position()>1]" mode = "semantics"/>
-    </m:mfenced>
- </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[*[1][self::m:compose]]">
-  <m:mfenced separators="">
-    <xsl:apply-templates select = "m:*[2][self::m:ci[@type='fn'] | self::m:fn]" mode="semantics"/>
-    <xsl:for-each select = "m:*[position()>2][self::m:ci[@type='fn'] | self::m:fn]">
-      <m:mo> <xsl:call-template name="insert2"/> <mchar name="SmallCircle"/> </m:mo>
-      <xsl:apply-templates select = "." mode="semantics"/>
-    </xsl:for-each>
-  </m:mfenced>
-</xsl:template>
-
-<xsl:template match = "m:ident">
-  <m:mo>id</m:mo>
-</xsl:template>
-
-
-<!-- ARITHMETIC, ALGEBRA & LOGIC -->
-
-<xsl:template match = "m:apply[m:quotient[1]]">
-  <m:mfenced open="&#x230a;" close="&#x230b;" separators="">
-    <xsl:call-template name="insert_xref"/>
-    <xsl:apply-templates select="*[2]" mode = "semantics">
-      <xsl:with-param name="IN_PREC" select="$FUNCTION_PREC"/>
-    </xsl:apply-templates>
-    <m:mo><xsl:call-template name="insert1"/>/</m:mo>
-    <xsl:apply-templates select="*[3]" mode = "semantics">
-      <xsl:with-param name="IN_PREC" select="$FUNCTION_PREC"/>
-      <xsl:with-param name="PAR_NO_IGNORE" select="$NO"/>
-    </xsl:apply-templates>
-  </m:mfenced>
-</xsl:template>
-
-<xsl:template match = "m:apply[*[1][self::m:exp]]">
-  <m:msup>
-    <m:mo>e</m:mo>
-    <xsl:apply-templates select = "*[2]" mode = "semantics"/>
-  </m:msup>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:factorial[1]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <xsl:apply-templates select = "*[2]" mode = "semantics">
-      <xsl:with-param name="IN_PREC" select="$FUNCTION_PREC"/>
-      <xsl:with-param name="PAR_NO_IGNORE" select="$NO"/>
-    </xsl:apply-templates>
-    <m:mo><xsl:call-template name="insert1"/>!</m:mo>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:max[1] | m:min[1]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <xsl:if test="*[2]=m:bvar">
-      <m:munder>
-        <xsl:if test="*[1]=m:max">
-          <m:mo><xsl:call-template name="insert1"/>max</m:mo>
-        </xsl:if>
-        <xsl:if test="*[1]=m:min">
-          <m:mo>min</m:mo>
-        </xsl:if>
-        <xsl:apply-templates select="*[2]" mode = "semantics"/>
-      </m:munder>
-      <xsl:if test="*[3]=m:condition">
-        <m:mfenced open="{{" close="}}" separators="">
-          <m:mfenced open="" close="" separators=",">
-            <xsl:for-each select = "*[position()>3]">
-              <xsl:apply-templates select = "." mode="semantics"/>
-            </xsl:for-each>
-          </m:mfenced>
-          <m:mo>|</m:mo>
-          <xsl:apply-templates select="*[3]" mode = "semantics"/>
-        </m:mfenced>
-      </xsl:if>
-      <xsl:if test="not(*[3]=m:condition)">
-        <m:mfenced open="{{" close="}}" separators=",">
-          <xsl:for-each select = "*[position()>2]">
-            <xsl:apply-templates select = "." mode="semantics"/>
-          </xsl:for-each>
-        </m:mfenced>
-      </xsl:if>
-    </xsl:if>
-    <xsl:if test="*[2]=m:condition">
-      <xsl:if test="*[1]=m:max">
-        <m:mo>max</m:mo>
-      </xsl:if>
-      <xsl:if test="*[1]=m:min">
-        <m:mo>min</m:mo>
-      </xsl:if>
-      <m:mfenced open="{{" close="}}" separators="">
-        <xsl:if test="*[3]">
-          <m:mfenced open="" close="" separators=",">
-            <xsl:for-each select = "*[position()>2]">
-              <xsl:apply-templates select = "." mode="semantics"/>
-            </xsl:for-each>
-          </m:mfenced>
-          <m:mo>|</m:mo>
-        </xsl:if>
-        <xsl:apply-templates select="*[2]" mode = "semantics"/>
-      </m:mfenced>
-    </xsl:if>
-    <xsl:if test="not(*[2]=m:condition) and not(*[2]=m:bvar)">
-      <xsl:if test="*[1]=m:max">
-        <m:mo>max</m:mo>
-      </xsl:if>
-      <xsl:if test="*[1]=m:min">
-        <m:mo><xsl:call-template name="insert1"/>min</m:mo>
-      </xsl:if>
-      <m:mfenced open="{{" close="}}" separators=",">
-        <xsl:for-each select = "*[position()>1]">
-          <xsl:apply-templates select = "." mode="semantics"/>
-        </xsl:for-each>
-      </m:mfenced>
-    </xsl:if>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:minus[1]]">
-  <xsl:param name="IN_PREC" select="$NO_PREC"/>
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:choose>
-    <xsl:when test="$IN_PREC &gt; $MINUS_PREC or $IN_PREC=$MINUS_PREC and $PARAM=$PAR_SAME">
-      <m:mfenced separators="">
-        <xsl:call-template name="insert_xref"/>
-        <xsl:apply-templates select="." mode="minus">
-          <xsl:with-param name="PARAM" select="$PARAM"/>
-          <xsl:with-param name="PAREN" select="$PAR_YES"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:when test="$IN_PREC &gt; $NO_PREC and $IN_PREC &lt; $FUNCTION_PREC and not($SEM_SW=2)">
-      <xsl:apply-templates select="." mode="minus">
-        <xsl:with-param name="PARAM" select="$PARAM"/>
-        <xsl:with-param name="PAREN" select="$PAREN"/>
-        <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-      </xsl:apply-templates>
-    </xsl:when>
-    <xsl:otherwise>
-      <m:mrow>
-        <xsl:call-template name="insert_xref"/>
-        <xsl:apply-templates select="." mode="minus">
-          <xsl:with-param name="PARAM" select="$PARAM"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mrow>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:minus[1]]" mode="minus">
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:if test="not(*[3])">
-    <m:mo><xsl:call-template name="insert1"/>-</m:mo>
-    <xsl:apply-templates select="*[2]" mode = "semantics">
-      <xsl:with-param name="IN_PREC" select="$NEG_PREC"/>
-      <xsl:with-param name="PAREN" select="$PAREN"/>
-      <xsl:with-param name="PAR_NO_IGNORE" select="$NO"/>
-    </xsl:apply-templates>
-  </xsl:if>
-  <xsl:if test="*[3]">
-    <xsl:apply-templates select="*[2]" mode = "semantics">
-      <xsl:with-param name="IN_PREC" select="$MINUS_PREC"/>
-      <xsl:with-param name="PARAM" select="$PARAM"/>
-      <xsl:with-param name="PAREN" select="$PAREN"/>
-      <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-    </xsl:apply-templates>
-    <m:mo><xsl:call-template name="insert1"/>-</m:mo>
-    <xsl:apply-templates select="*[3]" mode = "semantics">
-      <xsl:with-param name="IN_PREC" select="$MINUS_PREC"/>
-      <xsl:with-param name="PARAM" select="$PAR_SAME"/>
-      <xsl:with-param name="PAREN" select="$PAREN"/>
-      <xsl:with-param name="PAR_NO_IGNORE" select="$NO"/>
-    </xsl:apply-templates>
-  </xsl:if>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:plus[1]]">
-  <xsl:param name="IN_PREC" select="$NO_PREC"/>
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:choose>
-    <xsl:when test="$IN_PREC &gt; $PLUS_PREC or $IN_PREC=$PLUS_PREC and $PARAM=$PAR_SAME">
-      <m:mfenced separators="">
-        <xsl:call-template name="insert_xref"/>
-        <xsl:apply-templates select="." mode="plus">
-          <xsl:with-param name="PARAM" select="$IN_PREC"/>
-          <xsl:with-param name="PAREN" select="$PAR_YES"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:when test="$IN_PREC &gt; $NO_PREC and $IN_PREC &lt; $FUNCTION_PREC and not($SEM_SW=2)">
-      <xsl:apply-templates select="." mode="plus">
-        <xsl:with-param name="PARAM" select="$PARAM"/>
-        <xsl:with-param name="PAREN" select="$PAREN"/>
-        <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-      </xsl:apply-templates>
-    </xsl:when>
-    <xsl:otherwise>
-      <m:mrow>
-        <xsl:call-template name="insert_xref"/>
-        <xsl:apply-templates select="." mode="plus">
-          <xsl:with-param name="PARAM" select="$IN_PREC"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mrow>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:plus[1]]" mode="plus">
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:if test="*[2]">
-    <xsl:apply-templates select="*[2]" mode = "semantics">
-      <xsl:with-param name="IN_PREC" select="$PLUS_PREC"/>
-      <xsl:with-param name="PARAM" select="$PARAM"/>
-      <xsl:with-param name="PAREN" select="$PAREN"/>
-      <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-    </xsl:apply-templates>
-    <xsl:for-each select = "*[position()>2]">
-      <xsl:choose>
-        <xsl:when test=". &lt; 0">
-          <m:mo>-</m:mo>
-          <m:mn> <xsl:value-of select="-."/> </m:mn>
-        </xsl:when>
-        <xsl:when test="self::m:apply[m:minus[1]] and not(*[3])">
-          <xsl:apply-templates select="." mode = "semantics">
-            <xsl:with-param name="IN_PREC" select="$PLUS_PREC"/>
-            <xsl:with-param name="PAREN" select="$PAREN"/>
-            <xsl:with-param name="PAR_NO_IGNORE" select="$NO"/>
-          </xsl:apply-templates>
-        </xsl:when>
-        <xsl:otherwise>
-          <m:mo><xsl:call-template name="insert2"/>+</m:mo>
-          <xsl:apply-templates select="." mode = "semantics">
-            <xsl:with-param name="IN_PREC" select="$PLUS_PREC"/>
-            <xsl:with-param name="PAREN" select="$PAREN"/>
-            <xsl:with-param name="PAR_NO_IGNORE" select="$NO"/>
-          </xsl:apply-templates>
-        </xsl:otherwise>
-      </xsl:choose>
-    </xsl:for-each>
-  </xsl:if>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:power[1]]">
-  <xsl:choose>
-    <xsl:when test="*[2]=m:apply[m:ln[1] | m:log[1] | m:abs[1] | m:gcd[1] | m:sin[1] | m:cos[1] | m:tan[1] | m:sec[1] | m:csc[1] | m:cot[1] | m:sinh[1] | m:cosh[1] | m:tanh[1] | m:sech[1] | m:csch[1] | m:coth[1] | m:arcsin[1] | m:arccos[1] | m:arctan[1]]">
-      <xsl:apply-templates select="*[2]" mode = "semantics"/>
-    </xsl:when>
-    <xsl:otherwise>
-      <m:msup>
-        <xsl:apply-templates select = "*[2]" mode = "semantics">
-          <xsl:with-param name="IN_PREC" select="$FUNCTION_PREC"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$NO"/>
-        </xsl:apply-templates>
-        <xsl:apply-templates select = "*[3]" mode = "semantics"/>
-      </m:msup>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:rem[1] | m:divide[1]]">
-  <xsl:param name="IN_PREC" select="$NO_PREC"/>
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:choose>
-    <xsl:when test="$IN_PREC &gt; $DIV_PREC or $IN_PREC=$DIV_PREC and $PARAM=$PAR_SAME">
-      <m:mfenced separators="">
-        <xsl:call-template name="insert_xref"/>
-        <xsl:apply-templates select="." mode="remdiv">
-          <xsl:with-param name="PARAM" select="$IN_PREC"/>
-          <xsl:with-param name="PAREN" select="$PAR_YES"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:when test="$IN_PREC &gt; $NO_PREC and $IN_PREC &lt; $FUNCTION_PREC and not($SEM_SW=2)">
-      <xsl:apply-templates select="." mode="remdiv">
-        <xsl:with-param name="PARAM" select="$PARAM"/>
-        <xsl:with-param name="PAREN" select="$PAREN"/>
-        <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-      </xsl:apply-templates>
-    </xsl:when>
-    <xsl:otherwise>
-      <m:mrow>
-        <xsl:call-template name="insert_xref"/>
-        <xsl:apply-templates select="." mode="remdiv">
-          <xsl:with-param name="PARAM" select="$IN_PREC"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mrow>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:rem[1] | m:divide[1]]" mode="remdiv">
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:apply-templates select = "*[2]" mode = "semantics">
-    <xsl:with-param name="IN_PREC" select="$DIV_PREC"/>
-      <xsl:with-param name="PARAM" select="$PARAM"/>
-      <xsl:with-param name="PAREN" select="$PAREN"/>
-      <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-  </xsl:apply-templates>
-  <xsl:if test="m:rem">
-    <m:mo><xsl:call-template name="insert1"/>%</m:mo>
-  </xsl:if>
-  <xsl:if test="m:divide">
-    <m:mo><xsl:call-template name="insert1"/>/</m:mo>
-  </xsl:if>
-  <xsl:apply-templates select = "*[3]" mode = "semantics">
-    <xsl:with-param name="IN_PREC" select="$DIV_PREC"/>
-    <xsl:with-param name="PARAM" select="$PAR_SAME"/>
-    <xsl:with-param name="PAREN" select="$PAREN"/>
-    <xsl:with-param name="PAR_NO_IGNORE" select="$NO"/>
-  </xsl:apply-templates>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:times[1]]">
-  <xsl:param name="IN_PREC" select="$NO_PREC"/>
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:choose>
-    <xsl:when test="$IN_PREC &gt; $MUL_PREC or $IN_PREC=$MUL_PREC and $PARAM=$PAR_SAME">
-      <m:mfenced separators="">
-        <xsl:call-template name="insert_xref"/>
-        <xsl:apply-templates select="." mode="times">
-          <xsl:with-param name="PARAM" select="$IN_PREC"/>
-          <xsl:with-param name="PAREN" select="$PAR_YES"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:when test="$IN_PREC &gt; $NO_PREC and $IN_PREC &lt; $FUNCTION_PREC and not($SEM_SW=2)">
-      <xsl:apply-templates select="." mode="times">
-        <xsl:with-param name="PARAM" select="$PARAM"/>
-        <xsl:with-param name="PAREN" select="$PAREN"/>
-        <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-      </xsl:apply-templates>
-    </xsl:when>
-    <xsl:otherwise>
-      <m:mrow>
-         <xsl:call-template name="insert_xref"/>
-        <xsl:apply-templates select="." mode="times">
-          <xsl:with-param name="PARAM" select="$IN_PREC"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mrow>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:times[1]]" mode="times">
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:apply-templates select="*[2]" mode = "semantics">
-    <xsl:with-param name="IN_PREC" select="$MUL_PREC"/>
-    <xsl:with-param name="PARAM" select="$PARAM"/>
-    <xsl:with-param name="PAREN" select="$PAREN"/>
-    <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-  </xsl:apply-templates>
-  <xsl:if test="*[3]">
-    <xsl:for-each select = "*[position()>2]">
-<!-- MODIFICA PROVVISORIA -->
-<!--      <m:mo><xsl:call-template name="insert2"/>
-                <mchar name="InvisibleTimes"/> </m:mo> -->
-      <m:mo><xsl:call-template name="insert2"/>*</m:mo>
-      <xsl:apply-templates select="." mode = "semantics">
-        <xsl:with-param name="IN_PREC" select="$MUL_PREC"/>
-        <xsl:with-param name="PAREN" select="$PAREN"/>
-        <xsl:with-param name="PAR_NO_IGNORE" select="$NO"/>
-      </xsl:apply-templates>
-    </xsl:for-each>
-  </xsl:if>
-</xsl:template>
-
-<!-- COMMENTO : dove metto la uri della definizione di radice ???? -->
-
-<xsl:template match = "m:apply[m:root[1]]">
-  <m:msqrt>
-    <xsl:call-template name="insert_xref"/>
-    <xsl:if test="*[2]=m:degree">
-      <xsl:apply-templates select="*[3]" mode = "semantics"/>
-      <xsl:apply-templates select="*[2]" mode = "semantics"/>
-    </xsl:if>
-    <xsl:if test="not(*[2]=m:degree)">
-      <xsl:apply-templates select="*[2]" mode = "semantics"/>
-      <m:mn>2</m:mn>
-    </xsl:if>
-  </m:msqrt>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:gcd[1]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <xsl:if test="not(parent::m:apply[m:power[1]])">
-      <m:mo><xsl:call-template name="insert1"/>gcd</m:mo>
-    </xsl:if>
-    <xsl:if test="parent::m:apply[m:power[1]]">
-      <m:msup>
-        <m:mo><xsl:call-template name="insert1"/>gcd</m:mo>
-        <xsl:apply-templates select = "../*[3]" mode = "semantics"/>
-      </m:msup>
-    </xsl:if>
-    <m:mfenced separators=",">
-      <xsl:for-each select = "*[position()>1]">
-        <xsl:apply-templates select = "." mode="semantics"/>
-      </xsl:for-each>
-    </m:mfenced>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:and[1]]">
-  <xsl:param name="IN_PREC" select="$NO_PREC"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:choose>
-    <xsl:when test="$IN_PREC &gt; $AND_PREC">
-      <m:mfenced separators="">
-        <xsl:call-template name="insert_xref"/>
-        <xsl:apply-templates select="." mode="and">
-          <xsl:with-param name="PARAM" select="$IN_PREC"/>
-          <xsl:with-param name="PAREN" select="$PAR_YES"/>
-        </xsl:apply-templates>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:when test="$IN_PREC &gt; $NO_PREC and $IN_PREC &lt; $FUNCTION_PREC and not($SEM_SW=2)">
-      <xsl:apply-templates select="." mode="and">
-        <xsl:with-param name="PARAM" select="$IN_PREC"/>
-        <xsl:with-param name="PAREN" select="$PAREN"/>
-        <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-      </xsl:apply-templates>
-    </xsl:when>
-    <xsl:otherwise>
-      <m:mrow>
-        <xsl:call-template name="insert_xref"/>
-        <xsl:apply-templates select="." mode="and">
-          <xsl:with-param name="PARAM" select="$IN_PREC"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mrow>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:and[1]]" mode="and">
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:apply-templates select="*[2]" mode = "semantics">
-    <xsl:with-param name="IN_PREC" select="$AND_PREC"/>
-    <xsl:with-param name="PARAM" select="$PARAM"/>
-    <xsl:with-param name="PAREN" select="$PAREN"/>
-    <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-  </xsl:apply-templates>
-  <xsl:for-each select = "*[position()>2]">
-    <m:mo><xsl:call-template name="insert2"/> <mchar name="wedge"/> </m:mo>
-    <xsl:apply-templates select="." mode = "semantics">
-      <xsl:with-param name="IN_PREC" select="$AND_PREC"/>
-      <xsl:with-param name="PAREN" select="$PAREN"/>
-      <xsl:with-param name="PAR_NO_IGNORE" select="$NO"/>
-    </xsl:apply-templates>
-  </xsl:for-each>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:or[1]]">
-  <xsl:param name="IN_PREC" select="$NO_PREC"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:choose>
-    <xsl:when test="$IN_PREC &gt; $OR_PREC">
-      <m:mfenced separators="">
-         <xsl:call-template name="insert_xref"/>
-        <xsl:apply-templates select="." mode="or">
-          <xsl:with-param name="PARAM" select="$IN_PREC"/>
-          <xsl:with-param name="PAREN" select="$PAR_YES"/>
-        </xsl:apply-templates>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:when test="$IN_PREC &gt; $NO_PREC and $IN_PREC &lt; $FUNCTION_PREC and not($SEM_SW=2)">
-      <xsl:apply-templates select="." mode="or">
-        <xsl:with-param name="PARAM" select="$IN_PREC"/>
-        <xsl:with-param name="PAREN" select="$PAREN"/>
-        <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-      </xsl:apply-templates>
-    </xsl:when>
-    <xsl:otherwise>
-      <m:mrow>
-        <xsl:call-template name="insert_xref"/>
-        <xsl:apply-templates select="." mode="or">
-          <xsl:with-param name="PARAM" select="$IN_PREC"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mrow>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:or[1]]" mode="or">
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:apply-templates select="*[2]" mode = "semantics">
-    <xsl:with-param name="IN_PREC" select="$OR_PREC"/>
-    <xsl:with-param name="PARAM" select="$PARAM"/>
-    <xsl:with-param name="PAREN" select="$PAREN"/>
-    <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-  </xsl:apply-templates>
-  <xsl:for-each select = "*[position()>2]">
-    <m:mo><xsl:call-template name="insert2"/> <mchar name="vee"/> </m:mo>
-    <xsl:apply-templates select="." mode = "semantics">
-      <xsl:with-param name="IN_PREC" select="$OR_PREC"/>
-      <xsl:with-param name="PAREN" select="$PAREN"/>
-      <xsl:with-param name="PAR_NO_IGNORE" select="$NO"/>
-    </xsl:apply-templates>
-  </xsl:for-each>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:xor[1]]">
-  <xsl:param name="IN_PREC" select="$NO_PREC"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:choose>
-    <xsl:when test="$IN_PREC &gt; $XOR_PREC">
-      <m:mfenced separators="">
-        <xsl:call-template name="insert_xref"/>
-        <xsl:apply-templates select="." mode="xor">
-          <xsl:with-param name="PARAM" select="$IN_PREC"/>
-          <xsl:with-param name="PAREN" select="$PAR_YES"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:when test="$IN_PREC &gt; $NO_PREC and $IN_PREC &lt; $FUNCTION_PREC and not($SEM_SW=2)">
-      <xsl:apply-templates select="." mode="xor">
-        <xsl:with-param name="PARAM" select="$IN_PREC"/>
-        <xsl:with-param name="PAREN" select="$PAREN"/>
-      </xsl:apply-templates>
-    </xsl:when>
-    <xsl:otherwise>
-      <m:mrow>
-        <xsl:call-template name="insert_xref"/>
-        <xsl:apply-templates select="." mode="xor">
-          <xsl:with-param name="PARAM" select="$IN_PREC"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mrow>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:xor[1]]" mode="xor">
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:apply-templates select="*[2]" mode = "semantics">
-    <xsl:with-param name="IN_PREC" select="$XOR_PREC"/>
-    <xsl:with-param name="PARAM" select="$PARAM"/>
-    <xsl:with-param name="PAREN" select="$PAREN"/>
-    <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-  </xsl:apply-templates>
-  <xsl:for-each select = "*[position()>2]">
-    <m:mo><xsl:call-template name="insert2"/> <mchar name="xor"/> </m:mo>
-    <xsl:apply-templates select="." mode = "semantics">
-      <xsl:with-param name="IN_PREC" select="$XOR_PREC"/>
-      <xsl:with-param name="PAREN" select="$PAREN"/>
-      <xsl:with-param name="PAR_NO_IGNORE" select="$NO"/>
-    </xsl:apply-templates>
-  </xsl:for-each>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:not[1]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <m:mo><xsl:call-template name="insert1"/>not</m:mo>
-    <xsl:apply-templates select = "*[2]" mode = "semantics">
-      <xsl:with-param name="IN_PREC" select="$FUNCTION_PREC"/>
-    </xsl:apply-templates>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:forall[1]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <m:mo><xsl:call-template name="insert1"/>for all</m:mo>
-    <m:mfenced separators=",">
-      <xsl:for-each select = "m:bvar">
-        <xsl:apply-templates select = "." mode="semantics"/>
-      </xsl:for-each>
-    </m:mfenced>
-    <xsl:if test="m:condition">
-      <m:mo>:</m:mo>
-      <xsl:apply-templates select = "m:condition/*" mode = "semantics"/>
-      <m:mo>,</m:mo>
-    </xsl:if>
-    <xsl:apply-templates select = "*[position()>1 and not(self::m:bvar) and not(self::m:condition)]" mode = "semantics"/>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:exists[1]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <m:mo><xsl:call-template name="insert1"/> <mchar name="Exists"/> </m:mo>
-    <m:mfenced separators=",">
-      <xsl:for-each select = "m:bvar">
-        <xsl:apply-templates select = "." mode="semantics"/>
-      </xsl:for-each>
-    </m:mfenced>
-    <xsl:if test="m:condition">
-      <m:mo>,</m:mo>
-      <xsl:apply-templates select = "m:condition/*" mode = "semantics"/>
-    </xsl:if>
-    <m:mo>:</m:mo>
-    <xsl:apply-templates select = "*[position()>1 and not(self::m:bvar) and not(self::m:condition)]" mode = "semantics"/>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:abs[1]]">
-  <xsl:if test="not(parent::m:apply[m:power[1]])">
-    <m:mfenced open="|" close="|" separators="">
-      <xsl:call-template name="insert_xref"/>
-      <xsl:apply-templates select = "*[position()>1]" mode = "semantics"/>
-    </m:mfenced>
-  </xsl:if>
-  <xsl:if test="parent::m:apply[m:power[1]]">
-    <m:msup>
-      <m:mfenced open="|" close="|" separators="">
-        <xsl:call-template name="insert_xref"/>
-        <xsl:apply-templates select = "*[position()>1]" mode = "semantics"/>
-      </m:mfenced>
-      <xsl:apply-templates select = "../*[3]" mode = "semantics"/>
-    </m:msup>
-  </xsl:if>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:conjugate[1]]">
-  <m:mover>
-    <m:mrow>
-      <xsl:apply-templates select = "*[position()>1]" mode = "semantics"/>
-    </m:mrow>
-    <m:mo><xsl:call-template name="insert1"/> <mchar name="UnderBar"/> </m:mo>
-  </m:mover>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:arg[1] | m:real[1] | m:imaginary[1]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <xsl:choose>
-      <xsl:when test="m:arg">
-        <m:mo><xsl:call-template name="insert1"/>arg</m:mo>
-      </xsl:when>
-      <xsl:when test="m:real">
-        <m:mo><xsl:call-template name="insert1"/>Real</m:mo>
-      </xsl:when>
-      <xsl:when test="m:imaginary">
-        <m:mo><xsl:call-template name="insert1"/>Imaginary</m:mo>
-      </xsl:when>
-    </xsl:choose>
-    <m:mfenced separators="">
-      <xsl:apply-templates select = "*[2]" mode = "semantics"/>
-    </m:mfenced>
-  </m:mrow>
-</xsl:template>
-
-
-<!-- RELATIONS -->
-
-<xsl:template match = "m:apply[m:neq | m:approx | m:tendsto | m:implies | m:in | m:notin | m:notsubset | m:notprsubset | m:subset | m:prsubset | m:eq | m:gt | m:lt | m:geq | m:leq | m:equivalent]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <xsl:if test="*[1]=m:neq or *[1]=m:approx or *[1]=m:tendsto or *[1]=m:implies or *[1]=m:in or *[1]=m:notin or *[1]=m:notsubset or *[1]=m:notprsubset">
-      <xsl:apply-templates select = "*[2]" mode = "semantics"/>
-      <xsl:if test="*[1]=m:neq">
-        <m:mo><xsl:call-template name="insert1"/> <mchar name="NotEqual"/> </m:mo>
-      </xsl:if>
-      <xsl:if test="*[1]=m:approx">
-        <m:mo><xsl:call-template name="insert1"/> <mchar name="approxeq"/> </m:mo>
-      </xsl:if>
-      <xsl:if test="*[1]=m:tendsto">
-        <m:mo><xsl:call-template name="insert1"/> <mchar name="RightArrow"/> </m:mo>
-      </xsl:if>
-      <xsl:if test="*[1]=m:implies">
-        <m:mo><xsl:call-template name="insert1"/> <mchar name="DoubleRightArrow"/> </m:mo>
-      </xsl:if>
-      <xsl:if test="*[1]=m:in">
-        <m:mo><xsl:call-template name="insert1"/>
-        <mchar name="Element"/> 
-       </m:mo>
-      </xsl:if>
-      <xsl:if test="*[1]=m:notin">
-        <m:mo><xsl:call-template name="insert1"/> <mchar name="NotElement"/> </m:mo>
-      </xsl:if>
-      <xsl:if test="*[1]=m:notsubset">
-        <m:mo> <xsl:call-template name="insert1"/> <mchar name="NotSubset"/> </m:mo>
-      </xsl:if>
-      <xsl:if test="*[1]=m:notprsubset">
-        <m:mo> <xsl:call-template name="insert1"/> <mchar name="NotSubsetEqual"/> </m:mo>
-      </xsl:if>
-      <xsl:apply-templates select = "*[3]" mode = "semantics"/>
-      <xsl:if test="*[1]=m:tendsto and m:tendsto[1][@type='below']">
-        <m:mo><xsl:call-template name="insert1"/>-</m:mo>
-      </xsl:if>
-      <xsl:if test="*[1]=m:tendsto and m:tendsto[1][@type='above']">
-        <m:mo><xsl:call-template name="insert1"/>+</m:mo>
-      </xsl:if>
-    </xsl:if>
-    <xsl:if test="*[1]=m:subset or *[1]=m:prsubset or *[1]=m:eq or *[1]=m:gt or *[1]=m:lt or *[1]=m:geq or *[1]=m:leq or *[1]=m:equivalent">
-      <xsl:apply-templates select = "*[2]" mode="semantics"/>
-      <xsl:for-each select = "*[position()>2]">
-        <xsl:if test="../*[self::m:subset][1]">
-          <m:mo> <xsl:call-template name="insert2"/> <mchar name="SubsetEqual"/> </m:mo>
-        </xsl:if>
-        <xsl:if test="../*[self::m:prsubset][1]">
-          <m:mo> <xsl:call-template name="insert2"/><mchar name="subset"/> </m:mo>
-        </xsl:if>
-        <xsl:if test="../*[self::m:eq][1]">
-          <m:mo><xsl:call-template name="insert2"/>=</m:mo>
-        </xsl:if>
-        <xsl:if test="../*[self::m:gt][1]">
-          <m:mo><xsl:call-template name="insert2"/>&gt;</m:mo>
-        </xsl:if>
-        <xsl:if test="../*[self::m:lt][1]">
-          <m:mo><xsl:call-template name="insert2"/>&lt;</m:mo>
-        </xsl:if>
-        <xsl:if test="../*[self::m:geq][1]">
-          <m:mo><xsl:call-template name="insert2"/> <mchar name="geq"/> </m:mo>
-        </xsl:if>
-        <xsl:if test="../*[self::m:leq][1]">
-          <m:mo><xsl:call-template name="insert2"/> <mchar name="leq"/> </m:mo>
-        </xsl:if>
-        <xsl:if test="../*[self::m:equivalent][1]">
-          <m:mo><xsl:call-template name="insert2"/> <mchar name="Congruent"/> </m:mo>
-        </xsl:if>
-        <xsl:apply-templates select = "." mode="semantics"/>
-      </xsl:for-each>
-    </xsl:if>
-  </m:mrow>
-</xsl:template>
-
-
-<!-- CALCULUS -->
-
-<xsl:template match = "m:apply[*[1][self::m:ln]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <xsl:choose>
-      <xsl:when test="parent::m:apply[m:power[1]]">
-        <m:msup>
-          <m:mo><xsl:call-template name="insert1"/>ln</m:mo>
-          <xsl:apply-templates select = "../*[3]" mode = "semantics"/>
-        </m:msup>
-      </xsl:when>
-      <xsl:otherwise>
-        <m:mo><xsl:call-template name="insert1"/>ln</m:mo>
-      </xsl:otherwise>
-    </xsl:choose>
-    <xsl:apply-templates select = "*[2]" mode = "semantics">
-      <xsl:with-param name="IN_PREC" select="$FUNCTION_PREC"/>
-    </xsl:apply-templates>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:log[1]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <xsl:choose>
-      <xsl:when test="parent::m:apply[m:power[1]]">
-        <xsl:if test="not(*[2]=m:logbase)">
-          <m:msup>
-            <m:mo><xsl:call-template name="insert1"/>log</m:mo>
-            <xsl:apply-templates select = "../*[3]" mode = "semantics"/>
-          </m:msup>
-        </xsl:if>
-        <xsl:if test="*[2]=m:logbase">
-          <m:msubsup>
-            <m:mo><xsl:call-template name="insert1"/>log</m:mo>
-            <xsl:apply-templates select = "../*[3]" mode = "semantics"/>
-            <xsl:apply-templates select = "m:logbase" mode = "semantics"/>
-          </m:msubsup>
-        </xsl:if>
-      </xsl:when>
-      <xsl:otherwise>
-        <xsl:if test="not(*[2]=m:logbase)">
-          <m:mo><xsl:call-template name="insert1"/>log</m:mo>
-        </xsl:if>
-        <xsl:if test="*[2]=m:logbase">
-          <m:msub>
-            <m:mo><xsl:call-template name="insert1"/>log</m:mo>
-            <xsl:apply-templates select = "m:logbase" mode = "semantics"/>
-          </m:msub>
-        </xsl:if>
-      </xsl:otherwise>
-    </xsl:choose>
-    <xsl:if test="*[2]=m:logbase">
-      <xsl:apply-templates select = "*[3]" mode = "semantics">
-        <xsl:with-param name="IN_PREC" select="$FUNCTION_PREC"/>
-      </xsl:apply-templates>
-    </xsl:if>
-    <xsl:if test="not(*[2]=m:logbase)">
-      <xsl:apply-templates select = "*[2]" mode = "semantics">
-        <xsl:with-param name="IN_PREC" select="$FUNCTION_PREC"/>
-      </xsl:apply-templates>
-    </xsl:if>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:diff[1]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <xsl:if test="*[2]=m:bvar and m:bvar[*[2]=m:degree]">
-      <m:mfrac><xsl:call-template name="insert1"/>
-        <m:msup>
-          <m:mo>d</m:mo>
-          <xsl:apply-templates select = "m:bvar/m:degree" mode = "semantics"/>
-        </m:msup>
-        <m:mrow>
-          <m:mo>d</m:mo>
-          <m:msup>
-            <xsl:apply-templates select = "m:bvar/*[1]" mode = "semantics"/>
-            <xsl:apply-templates select = "m:bvar/m:degree" mode = "semantics"/>
-          </m:msup>
-        </m:mrow>
-      </m:mfrac>
-    </xsl:if>
-    <xsl:if test="*[2]=m:bvar and not(m:bvar[*[2]=m:degree])">
-      <m:mfrac><xsl:call-template name="insert1"/>
-        <m:mo>d</m:mo>
-        <m:mrow>
-          <m:mo>d</m:mo>
-          <xsl:apply-templates select = "m:bvar/*[1]" mode = "semantics"/>
-        </m:mrow>
-      </m:mfrac>
-    </xsl:if>
-    <xsl:apply-templates select = "*[3]" mode = "semantics"/>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:partialdiff[1]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <xsl:for-each select = "m:bvar">
-      <xsl:if test="*[last()]=m:degree">
-        <m:mfrac><xsl:call-template name="insert1"/>
-          <m:msup>
-             <m:mo>d</m:mo>
-             <xsl:apply-templates select = "m:degree" mode = "semantics"/>
-          </m:msup>
-          <m:mrow>
-            <m:mo>d</m:mo>
-            <m:msup>
-              <xsl:apply-templates select = "*[1]" mode = "semantics"/>
-              <xsl:apply-templates select = "m:degree" mode = "semantics"/>
-            </m:msup>
-          </m:mrow>
-        </m:mfrac>
-      </xsl:if>
-      <xsl:if test="not(*[last()]=m:degree)">
-        <m:mfrac><xsl:call-template name="insert1"/>
-          <m:mo>d</m:mo>
-          <m:mrow>
-            <m:mo>d</m:mo>
-            <xsl:apply-templates select = "*[1]" mode = "semantics"/>
-          </m:mrow>
-        </m:mfrac>
-      </xsl:if>
-    </xsl:for-each>
-    <xsl:apply-templates select = "*[last()]" mode = "semantics"/>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:lowlimit | m:uplimit | m:bvar | m:degree | m:logbase">
-  <xsl:apply-templates mode = "semantics"/>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:divergence[1] | m:grad[1] | m:curl[1]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <xsl:if test="*[1]=m:divergence">
-      <m:mo><xsl:call-template name="insert1"/>div</m:mo>
-    </xsl:if>
-    <xsl:if test="*[1]=m:grad">
-    <m:mo><xsl:call-template name="insert1"/>grad</m:mo>
-    </xsl:if>
-    <xsl:if test="*[1]=m:curl">
-    <m:mo><xsl:call-template name="insert1"/>curl</m:mo>
-    </xsl:if>
-    <xsl:choose>
-      <xsl:when test="*[2]=m:ci">
-        <xsl:apply-templates select = "*[2]" mode = "semantics"/>
-      </xsl:when>
-      <xsl:otherwise>
-        <m:mfenced separators="">
-          <xsl:apply-templates select = "*[2]" mode = "semantics"/>
-        </m:mfenced>
-      </xsl:otherwise>
-    </xsl:choose>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:laplacian[1]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <m:msup><xsl:call-template name="insert1"/>
-      <m:mo> &#x0394; </m:mo>
-      <m:mn>2</m:mn>
-    </m:msup>
-    <xsl:apply-templates select = "*[2]" mode = "semantics"/>
-  </m:mrow>
-</xsl:template>
-
-
-<!-- SET THEORY -->
-
-<xsl:template match = "m:set | m:list">
-  <m:mfenced open="{{" close="}}" separators="">
-    <xsl:call-template name="insert_xref"/>
-    <xsl:if test="*[1]=m:bvar and *[2]=m:condition">
-      <xsl:apply-templates select="m:bvar" mode = "semantics"/>
-      <m:mo>|</m:mo>
-      <xsl:apply-templates select="m:condition" mode = "semantics"/>
-    </xsl:if>
-    <xsl:if test="*[1]=m:condition and not(child::m:bvar)">
-      <m:mfenced open="" close="" separators=",">
-        <xsl:for-each select = "*[not(self::m:condition) and not(self::m:bvar)]">
-          <xsl:apply-templates select = "." mode="semantics"/>
-        </xsl:for-each>
-      </m:mfenced>
-      <m:mo>|</m:mo>
-      <xsl:apply-templates select="m:condition" mode = "semantics"/>
-    </xsl:if>
-    <xsl:if test="not(child::m:bvar) and not(child::m:condition)">
-      <m:mfenced open="" close="" separators=",">
-        <xsl:for-each select = "*">
-          <xsl:apply-templates select = "." mode="semantics"/>
-        </xsl:for-each>
-      </m:mfenced>
-    </xsl:if>
-  </m:mfenced>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:union[1]]">
-  <xsl:param name="IN_PREC" select="$NO_PREC"/>
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:choose>
-    <xsl:when test="$IN_PREC &gt; $UNION_PREC or $IN_PREC=$UNION_PREC and $PARAM=$PAR_SAME">
-      <m:mfenced separators="" helm:xref="{@helm:xref}">
-        <xsl:call-template name="insert_xref"/>
-        <xsl:apply-templates select="." mode="union">
-          <xsl:with-param name="PARAM" select="$PARAM"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:when test="$IN_PREC &gt; $NO_PREC and $IN_PREC &lt; $FUNCTION_PREC and not($SEM_SW=2)">
-      <xsl:apply-templates select="." mode="union">
-        <xsl:with-param name="PARAM" select="$PARAM"/>
-        <xsl:with-param name="PAREN" select="$PAREN"/>
-        <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-      </xsl:apply-templates>
-    </xsl:when>
-    <xsl:otherwise>
-      <m:mrow>
-        <xsl:call-template name="insert_xref"/>
-        <xsl:apply-templates select="." mode="union">
-          <xsl:with-param name="PARAM" select="$PARAM"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mrow>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:union[1]]" mode="union">
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:apply-templates select = "*[2]" mode="semantics">
-    <xsl:with-param name="IN_PREC" select="$UNION_PREC"/>
-    <xsl:with-param name="PARAM" select="$PARAM"/>
-    <xsl:with-param name="PAREN" select="$PAREN"/>
-    <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-  </xsl:apply-templates>
-  <xsl:for-each select = "*[position()>2]">
-    <m:mo><xsl:call-template name="insert2"/> <mchar name="Union"/> </m:mo>
-    <xsl:apply-templates select = "." mode="semantics">
-      <xsl:with-param name="IN_PREC" select="$UNION_PREC"/>
-      <xsl:with-param name="PAREN" select="$PAREN"/>
-      <xsl:with-param name="PAR_NO_IGNORE" select="$NO"/>
-    </xsl:apply-templates>
-  </xsl:for-each>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:intersect[1]]">
-  <xsl:param name="IN_PREC" select="$NO_PREC"/>
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:choose>
-    <xsl:when test="$IN_PREC &gt; $INTERSECT_PREC">
-      <m:mfenced separators="" helm:xref="{@helm:xref}">
-        <xsl:call-template name="insert_xref"/>
-        <xsl:apply-templates select="." mode="intersect">
-          <xsl:with-param name="PARAM" select="$PARAM"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:when test="$IN_PREC &gt; $NO_PREC and $IN_PREC &lt; $FUNCTION_PREC and not($SEM_SW=2)">
-      <xsl:apply-templates select="." mode="intersect">
-        <xsl:with-param name="PARAM" select="$PARAM"/>
-        <xsl:with-param name="PAREN" select="$PAREN"/>
-        <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-      </xsl:apply-templates>
-    </xsl:when>
-    <xsl:otherwise>
-      <m:mrow>
-        <xsl:call-template name="insert_xref"/>
-        <xsl:apply-templates select="." mode="intersect">
-          <xsl:with-param name="PARAM" select="$PARAM"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mrow>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:intersect[1]]" mode="intersect">
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:apply-templates select = "*[2]" mode="semantics">
-    <xsl:with-param name="IN_PREC" select="$INTERSECT_PREC"/>
-    <xsl:with-param name="PARAM" select="$PARAM"/>
-    <xsl:with-param name="PAREN" select="$PAREN"/>
-    <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-  </xsl:apply-templates>
-  <xsl:for-each select = "*[position()>2]">
-    <m:mo><xsl:call-template name="insert2"/> <mchar name="Intersection"/> </m:mo>
-    <xsl:apply-templates select = "." mode="semantics">
-      <xsl:with-param name="IN_PREC" select="$INTERSECT_PREC"/>
-      <xsl:with-param name="PAREN" select="$PAREN"/>
-      <xsl:with-param name="PAR_NO_IGNORE" select="$NO"/>
-    </xsl:apply-templates>
-  </xsl:for-each>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:setdiff[1]]">
-  <xsl:param name="IN_PREC" select="$NO_PREC"/>
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:choose>
-    <xsl:when test="$IN_PREC &gt; $SETDIFF_PREC or $IN_PREC=$SETDIFF_PREC and $PARAM=$PAR_SAME">
-      <m:mfenced separators="">
-        <xsl:call-template name="insert_xref"/>
-        <xsl:apply-templates select="." mode="setdiff">
-          <xsl:with-param name="PARAM" select="$PARAM"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:when test="$IN_PREC &gt; $NO_PREC and $IN_PREC &lt; $FUNCTION_PREC and not($SEM_SW=2)">
-      <xsl:apply-templates select="." mode="setdiff">
-        <xsl:with-param name="PARAM" select="$PARAM"/>
-        <xsl:with-param name="PAREN" select="$PAREN"/>
-        <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-      </xsl:apply-templates>
-    </xsl:when>
-    <xsl:otherwise>
-      <m:mrow>
-        <xsl:call-template name="insert_xref"/>
-        <xsl:apply-templates select="." mode="setdiff">
-          <xsl:with-param name="PARAM" select="$PARAM"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mrow>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:setdiff[1]]" mode="setdiff">
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:apply-templates select = "*[2]" mode = "semantics">
-    <xsl:with-param name="IN_PREC" select="$SETDIFF_PREC"/>
-    <xsl:with-param name="PARAM" select="$PARAM"/>
-    <xsl:with-param name="PAREN" select="$PAREN"/>
-    <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-  </xsl:apply-templates>
-  <m:mo><xsl:call-template name="insert1"/>\</m:mo>
-  <xsl:apply-templates select = "*[3]" mode = "semantics">
-    <xsl:with-param name="IN_PREC" select="$SETDIFF_PREC"/>
-    <xsl:with-param name="PARAM" select="$PAR_SAME"/>
-    <xsl:with-param name="PAREN" select="$PAREN"/>
-    <xsl:with-param name="PAR_NO_IGNORE" select="$NO"/>
-  </xsl:apply-templates>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:card[1]]">
-  <m:mfenced open="|" close="|" separators=",">
-    <xsl:call-template name="insert_xref"/>
-    <xsl:for-each select = "*[position()>1]">
-      <xsl:apply-templates select = "." mode="semantics"/>
-    </xsl:for-each>
-  </m:mfenced>
-</xsl:template>
-
-
-<!-- SEQUENCES AND SERIES -->
-
-<xsl:template match = "m:apply[m:sum[1] | m:product[1]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <xsl:choose>
-      <xsl:when test="*[2]=m:bvar and m:lowlimit and m:uplimit">
-        <m:munderover>
-          <xsl:if test="*[1]=m:sum">
-            <m:mo><xsl:call-template name="insert1"/> <mchar name="Sum"/> </m:mo>
-          </xsl:if>
-          <xsl:if test="*[1]=m:product">
-            <m:mo><xsl:call-template name="insert1"/> <mchar name="Product"/> </m:mo>
-          </xsl:if>
-          <m:mrow>
-            <xsl:apply-templates select = "*[2]" mode = "semantics"/>
-            <m:mo>=</m:mo>
-            <xsl:apply-templates select = "m:lowlimit" mode = "semantics"/>
-          </m:mrow>
-          <xsl:apply-templates select = "m:uplimit" mode = "semantics"/>
-        </m:munderover>
-        <xsl:apply-templates select = "*[5]" mode = "semantics"/>
-      </xsl:when>
-      <xsl:when test="*[2]=m:bvar and *[3]=m:condition">
-        <m:munder>
-          <xsl:if test="*[1]=m:sum">
-            <m:mo><xsl:call-template name="insert1"/> <mchar name="Sum"/> </m:mo>
-          </xsl:if>
-          <xsl:if test="*[1]=m:product">
-            <m:mo><xsl:call-template name="insert1"/> <mchar name="Product"/> </m:mo>
-          </xsl:if>
-          <xsl:apply-templates select = "*[3]" mode = "semantics"/>
-        </m:munder>
-        <xsl:apply-templates select = "*[4]" mode = "semantics"/>
-      </xsl:when>
-    </xsl:choose>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:limit[1]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <m:munder>
-      <m:mo><xsl:call-template name="insert1"/>lim</m:mo>
-      <m:mrow>
-        <xsl:if test="*[2]=m:bvar and *[3]=m:lowlimit">
-            <xsl:apply-templates select = "*[2]" mode = "semantics"/>
-            <m:mo> <mchar name="RightArrow"/> </m:mo>
-            <xsl:apply-templates select = "*[3]" mode = "semantics"/>
-        </xsl:if>
-        <xsl:if test="*[2]=m:bvar and *[3]=m:condition">
-          <xsl:apply-templates select = "*[3]" mode = "semantics"/>
-        </xsl:if>
-      </m:mrow>
-    </m:munder>
-    <xsl:apply-templates select = "*[4]" mode = "semantics"/>
-  </m:mrow>
-</xsl:template>
-
-
-<!-- TRIGONOMETRY -->
-
-<xsl:template match = "m:apply[*[1][self::m:sin | self::m:cos | self::m:tan | self::m:sec | self::m:csc | self::m:cot | self::m:sinh | self::m:cosh | self::m:tanh | self::m:sech | self::m:csch | self::m:coth | self::m:arcsin | self::m:arccos | self::m:arctan]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <xsl:if test="not(parent::m:apply[m:power[1]])">
-      <xsl:apply-templates select = "*[1]" mode = "trigonometry"/>
-    </xsl:if>
-    <xsl:if test="parent::m:apply[m:power[1]]">
-      <m:msup>
-        <xsl:apply-templates select = "*[1]" mode = "trigonometry"/>
-        <xsl:apply-templates select = "../*[3]" mode = "semantics"/>
-      </m:msup>
-    </xsl:if>
-    <xsl:apply-templates select = "*[2]" mode = "semantics">
-      <xsl:with-param name="IN_PREC" select="$FUNCTION_PREC"/>
-      <xsl:with-param name="PAR_NO_IGNORE" select="$NO"/>
-    </xsl:apply-templates>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:*" mode = "trigonometry">
-    <xsl:choose>
-      <xsl:when test="self::m:sin">
-        <m:mo>sin</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:cos">
-        <m:mo>cos</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:tan">
-        <m:mo>tan</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:sec">
-        <m:mo>sec</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:csc">
-        <m:mo>csc</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:cot">
-        <m:mo>cot</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:sinh">
-        <m:mo>sinh</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:cosh">
-        <m:mo>cosh</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:tanh">
-        <m:mo>tanh</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:sech">
-        <m:mo>sech</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:csch">
-        <m:mo>csch</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:coth">
-        <m:mo>coth</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:arcsin">
-        <m:mo>arcsin</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:arccos">
-        <m:mo>arccos</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:arctan">
-        <m:mo>arctan</m:mo>
-      </xsl:when>
-    </xsl:choose>
-</xsl:template>
-
-
-<!-- STATISTICS -->
-
-<xsl:template match = "m:apply[m:mean[1]]">
-  <m:mfenced open="&lt;" close="&gt;" separators=",">
-    <xsl:call-template name="insert_xref"/>
-    <xsl:for-each select = "*[position()>1]">
-      <xsl:apply-templates select = "." mode="semantics"/>
-    </xsl:for-each>
-  </m:mfenced>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:sdev[1]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <m:mo><xsl:call-template name="insert1"/> &#x03c3; </m:mo>
-    <m:mfenced separators=",">
-      <xsl:for-each select = "*[position()>1]">
-        <xsl:apply-templates select = "." mode="semantics"/>
-      </xsl:for-each>
-    </m:mfenced>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:variance[1]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <m:mo><xsl:call-template name="insert1"/> &#x03c3; </m:mo>
-    <m:msup>
-      <m:mfenced separators=",">
-        <xsl:for-each select = "*[position()>1]">
-          <xsl:apply-templates select = "." mode="semantics"/>
-        </xsl:for-each>
-      </m:mfenced>
-      <m:mn>2</m:mn>
-    </m:msup>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:median[1]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <m:mo><xsl:call-template name="insert1"/>median</m:mo>
-    <m:mfenced separators=",">
-      <xsl:for-each select = "*[position()>1]">
-        <xsl:apply-templates select = "." mode="semantics"/>
-      </xsl:for-each>
-    </m:mfenced>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:mode[1]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <m:mo><xsl:call-template name="insert1"/>mode</m:mo>
-    <m:mfenced separators=",">
-      <xsl:for-each select = "*[position()>1]">
-        <xsl:apply-templates select = "." mode="semantics"/>
-      </xsl:for-each>
-    </m:mfenced>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:moment[1]]">
-  <xsl:call-template name="insert_xref"/>
-  <m:mfenced open="&lt;" close="&gt;" separators="">
-    <xsl:if test="*[2]=m:degree">
-      <m:msup>
-        <xsl:apply-templates select="*[3]" mode = "semantics"/>
-        <xsl:apply-templates select="*[2]" mode = "semantics"/>
-      </m:msup>
-    </xsl:if>
-    <xsl:if test="not(*[2]=m:degree)">
-      <xsl:for-each select = "*[position()>1]">
-        <xsl:apply-templates select = "." mode="semantics"/>
-      </xsl:for-each>
-    </xsl:if>
-  </m:mfenced>
-</xsl:template>
-
-
-<!-- LINEAR ALGEBRA -->
-
-<xsl:template match="m:vector">
-  <m:mfenced separators="">
-    <m:mtable>
-      <xsl:for-each select="*">
-        <m:mtd>
-          <xsl:apply-templates select="." mode = "semantics"/>
-        </m:mtd>
-      </xsl:for-each>
-    </m:mtable>
-  </m:mfenced>
-</xsl:template>
-
-<xsl:template match = "m:matrix">
-  <m:mfenced separators="">
-    <m:mtable>
-      <xsl:apply-templates mode = "semantics"/>
-    </m:mtable>
-  </m:mfenced>
-</xsl:template>
-
-<xsl:template match = "m:matrixrow">
-  <m:mtr>
-    <xsl:for-each select="*">
-      <m:mtd>
-        <xsl:apply-templates select="." mode = "semantics"/>
-      </m:mtd>
-    </xsl:for-each>
-  </m:mtr>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:determinant[1]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <m:mo><xsl:call-template name="insert1"/>det</m:mo>
-    <xsl:apply-templates select = "*[2]" mode = "semantics"/>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:transpose[1]]">
-  <m:msup>
-    <xsl:apply-templates select = "*[2]" mode = "semantics"/>
-    <m:mo>T</m:mo>
-  </m:msup>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:selector[1]]">
-  <xsl:if test="*[2]=m:matrix and *[3]=m:cn">
-      <xsl:variable name="m" select = "*[3]"/>
-      <xsl:choose>
-        <xsl:when test="*[4]=m:cn">
-          <xsl:variable name="n" select = "*[4]"/>
-          <xsl:copy-of select = "m:matrix/*[position()=$m]/*[position()=$n]"/>
-        </xsl:when>
-        <xsl:otherwise>
-          <xsl:copy-of select = "m:matrix/*[position()=$m]"/>
-        </xsl:otherwise>
-      </xsl:choose>
-  </xsl:if>
-  <xsl:if test="(*[2]=m:vector or *[2]=m:list) and *[3]=m:cn">
-    <xsl:variable name="m" select = "*[3]"/>
-    <xsl:copy-of select = "*[2]/*[position()=$m]"/>
-  </xsl:if>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:vectorproduct[1] | m:scalarproduct[1] | m:outerproduct[1]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <xsl:apply-templates select="*[2]" mode = "semantics"/>
-    <xsl:choose>
-      <xsl:when test="m:vectorproduct[1]">
-        <m:mo><xsl:call-template name="insert1"/> <mchar name="Cross"/> </m:mo>
-      </xsl:when>
-      <xsl:when test="m:scalarproduct[1] | m:outerproduct[1]">
-        <m:mo><xsl:call-template name="insert1"/>.</m:mo>
-      </xsl:when>
-    </xsl:choose>
-    <xsl:apply-templates select="*[3]" mode = "semantics"/>
-  </m:mrow>
-</xsl:template>
-
-</xsl:stylesheet>
diff --git a/helm/style/mml2mmlv1_0_original.xsl b/helm/style/mml2mmlv1_0_original.xsl
deleted file mode 100644
index 44c34df74..000000000
--- a/helm/style/mml2mmlv1_0_original.xsl
+++ /dev/null
@@ -1,1848 +0,0 @@
-<?xml version="1.0"?>
-
-<!-- ====================================================== -->
-<!-- XSL Transform of MathML content to MathML presentation -->
-<!--    By Igor Rodionov, Computer Science Department of    -->
-<!--   the University of Western Ontario, London, Canada    -->
-<!--  Complies with the W3C Working Draft from Dec.3, 1999  -->
-<!--             Version x.xx from Feb. 18, 2000            -->
-<!--              Comments to:  igor@csd.uwo.ca             -->
-<!--                                                        -->
-<!-- (C) Copyright 1999, 2000 Symbolic Computation          -->
-<!--     Laboratory, University of Western Ontario.         -->
-<!-- ====================================================== -->
-
-<!-- ====================================================== -->
-<!--  May 11, 2000 - HELM group:                            -->
-<!--  Added the namespace prefix to all the output elements -->
-<!--  Changed the mml prefix into m                         -->
-<!--  Swapped math element out of the semantic element      -->
-<!--  Added the declaration of the xlink namespace          --> 
-<!-- ====================================================== -->
-
-<xsl:stylesheet id="mml2mml"
-                version="1.0"
-                xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                xmlns:m="http://www.w3.org/1998/Math/MathML"
-                xmlns:xlink="http://www.w3.org/1999/xlink">
-
-<xsl:output method="xml" indent="yes" encoding="iso-8859-1"/>
-
-<!-- ***************************************************** -->
-<!--  Parameters affectin' stylesheet's run-time behavior  -->
-<!-- ***************************************************** -->
-
-<!-- SEM_SW: -1 - strip off all semantics
-             0  - pass semantics "as is" (default)
-             1  - add semantics at top level only
-             2  - add semantics at all levels
-             3  - semantics at top level with cross-references
--->
-<!-- HELM: SEM_SW was 0 -->
-<xsl:param name="SEM_SW" select="1"/>
-
-<!-- Miscellaneous Variable Definitions -->
-
-<xsl:variable name="NO" select="0"/>
-<xsl:variable name="YES" select="1"/>
-<xsl:variable name="PAR_NO" select="-7"/>
-<xsl:variable name="PAR_YES" select="-5"/>
-<xsl:variable name="PAR_SAME" select="-3"/>
-<xsl:variable name="NO_PARAM" select="-1"/>
-
-<!-- Operator Precedence Definitions -->
-
-<xsl:variable name="NO_PREC" select="0"/>
-<xsl:variable name="UNION_PREC" select="1"/>
-<xsl:variable name="SETDIFF_PREC" select="1"/>
-<xsl:variable name="INTERSECT_PREC" select="3"/>
-<xsl:variable name="OR_PREC" select="5"/>
-<xsl:variable name="XOR_PREC" select="5"/>
-<xsl:variable name="AND_PREC" select="7"/>
-<xsl:variable name="PLUS_PREC" select="9"/>
-<xsl:variable name="MINUS_PREC" select="9"/>
-<xsl:variable name="MUL_PREC" select="11"/>
-<xsl:variable name="DIV_PREC" select="11"/>
-<xsl:variable name="NEG_PREC" select="13"/>
-<xsl:variable name="FUNCTION_PREC" select="99"/>
-
-
-<!-- THE TOPMOST ELEMENT: MATH -->
-
-<xsl:template match = "m:math">
-  <xsl:choose>
-    <xsl:when test="$SEM_SW>0">
-<!-- HELM: deleted math (we have already inserted at object level) -->
-     <!--<m:math>-->
-      <m:semantics>
-          <xsl:apply-templates mode = "semantics"/>
-       <m:annotation-xml encoding="MathML">
-          <xsl:copy-of select = "*"/>
-       </m:annotation-xml>
-      </m:semantics>
-     <!--</m:math>-->
-    </xsl:when>
-    <xsl:otherwise>
-      <!--<m:math>-->
-        <xsl:apply-templates mode = "semantics"/>
-      <!--</m:math>-->  
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<!-- SEMANTICS -->
-
-<xsl:template match = "m:*" mode = "semantics">
-  <xsl:param name="IN_PREC" select="$NO_PREC"/>
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:choose>
-    <xsl:when test="$SEM_SW=-1 and self::m:semantics">
-      <xsl:apply-templates select="*[1]">
-        <xsl:with-param name="IN_PREC" select="$IN_PREC"/>
-        <xsl:with-param name="PARAM" select="$PARAM"/>
-        <xsl:with-param name="PAREN" select="$PAREN"/>
-        <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-      </xsl:apply-templates>
-    </xsl:when>
-    <xsl:when test="$SEM_SW=0 and self::m:semantics">
-      <m:semantics>
-        <xsl:apply-templates select="*[1]">
-          <xsl:with-param name="IN_PREC" select="$IN_PREC"/>
-          <xsl:with-param name="PARAM" select="$PARAM"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-        <xsl:copy-of select="m:annotation-xml"/>
-      </m:semantics>
-    </xsl:when>
-    <xsl:when test="$SEM_SW=2">
-      <m:semantics>
-        <xsl:choose>
-          <xsl:when test="self::m:semantics">
-            <xsl:apply-templates select="*[1]">
-              <xsl:with-param name="IN_PREC" select="$IN_PREC"/>
-              <xsl:with-param name="PARAM" select="$PARAM"/>
-              <xsl:with-param name="PAREN" select="$PAREN"/>
-              <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-            </xsl:apply-templates>
-            <xsl:copy-of select="m:annotation-xml"/>
-          </xsl:when>
-          <xsl:otherwise>
-            <xsl:apply-templates select=".">
-              <xsl:with-param name="IN_PREC" select="$IN_PREC"/>
-              <xsl:with-param name="PARAM" select="$PARAM"/>
-              <xsl:with-param name="PAREN" select="$PAREN"/>
-              <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-            </xsl:apply-templates>
-            <m:annotation-xml encoding="MathML">
-              <xsl:copy-of select="."/>
-            </m:annotation-xml>
-          </xsl:otherwise>
-        </xsl:choose>
-      </m:semantics>
-    </xsl:when>
-    <xsl:when test="$SEM_SW=3 and @id">
-      <m:mrow idref="{@id}">
-        <xsl:apply-templates select=".">
-          <xsl:with-param name="IN_PREC" select="$IN_PREC"/>
-          <xsl:with-param name="PARAM" select="$PARAM"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mrow>
-    </xsl:when>
-    <xsl:otherwise>
-      <xsl:apply-templates select=".">
-        <xsl:with-param name="IN_PREC" select="$IN_PREC"/>
-        <xsl:with-param name="PARAM" select="$PARAM"/>
-        <xsl:with-param name="PAREN" select="$PAREN"/>
-        <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-      </xsl:apply-templates>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:semantics">
-  <xsl:apply-templates select="*[1]" mode = "semantics"/>
-</xsl:template>
-
-
-<!-- BASIC ELEMENTS -->
-
-<xsl:template match = "m:cn">
-  <xsl:param name="IN_PREC" select="$NO_PREC"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:choose>
-    <xsl:when test=". &lt; 0 and $IN_PREC &gt; 0 and $PAREN=$PAR_NO and $PAR_NO_IGNORE=$NO">
-      <m:mfenced separators="">
-        <xsl:apply-templates select="." mode="cn"/>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:otherwise>
-      <xsl:apply-templates select="." mode="cn"/>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:cn" mode="cn">
-  <xsl:choose>
-    <xsl:when test="@base and (not(@type) or @type='integer' or @type='real')">
-      <m:msub>
-        <m:mn> <xsl:apply-templates mode = "semantics"/> </m:mn>
-        <m:mn> <xsl:value-of select="@base"/> </m:mn>
-      </m:msub>
-    </xsl:when>
-    <xsl:when test="@type='complex' and not(@base) and child::m:sep[1]">
-      <m:mfenced separators="">
-        <m:mn> <xsl:apply-templates select="text()[1]" mode = "semantics"/> </m:mn>
-        <xsl:if test="text()[2] &lt; 0">
-          <m:mo>-</m:mo>
-          <m:mn> <xsl:value-of select="-text()[2]"/> </m:mn>
-        </xsl:if>
-        <xsl:if test="not(text()[2] &lt; 0)">
-          <m:mo>+</m:mo>
-          <xsl:apply-templates select="text()[2]" mode = "semantics"/>
-        </xsl:if>
-        <m:mo> <mchar name="InvisibleTimes"/> </m:mo>
-        <m:mo>i</m:mo>
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-    <xsl:when test="@type='complex' and @base and child::m:sep[1]">
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-          <xsl:if test="text()[2] &lt; 0">
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-            <m:mn> <xsl:value-of select="-text()[2]"/> </m:mn>
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-          <xsl:if test="not(text()[2] &lt; 0)">
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-            <m:mn> <xsl:apply-templates select="text()[2]" mode = "semantics"/> </m:mn>
-          </xsl:if>
-          <m:mo> <mchar name="InvisibleTimes"/> </m:mo>
-          <m:mo>i</m:mo>
-        </m:mfenced>
-        <m:mn> <xsl:value-of select="@base"/> </m:mn>
-      </m:msub>
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-    <xsl:when test="@type='rational' and not(@base) and child::m:sep[1]">
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-        <m:mn> <xsl:apply-templates select="text()[2]" mode = "semantics"/> </m:mn>
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-          <m:mn> <xsl:apply-templates select="text()[2]" mode = "semantics"/> </m:mn>
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-    </xsl:when>
-    <xsl:when test="@type='polar' and not(@base) and child::m:sep[1]">
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-
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-    </xsl:when>
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-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:csymbol">
-  <xsl:choose>
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-      <xsl:copy-of select = "*"/>
-    </xsl:when>
-    <xsl:otherwise>
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-    </xsl:otherwise>
-  </xsl:choose>
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-
-
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-
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-
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-
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-    <xsl:when test="@closure='open-closed'">
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-      </m:mfenced>
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-      </m:mfenced>
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-
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-      <xsl:apply-templates select = "*[position()>1]" mode = "semantics"/>
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- </m:mrow>
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-
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-
-<xsl:template match = "m:sep"/>
-
-<xsl:template match = "m:condition">
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-
-<xsl:template match = "m:declare"/>
-
-<xsl:template match = "m:lambda">
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-      <xsl:for-each select = "*">
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-
-<xsl:template match = "m:apply[m:*[1][self::m:apply[m:compose[1]]]]">
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-
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-  </m:mfenced>
-</xsl:template>
-
-<xsl:template match = "m:ident">
-  <m:mo>id</m:mo>
-</xsl:template>
-
-
-<!-- ARITHMETIC, ALGEBRA & LOGIC -->
-
-<xsl:template match = "m:apply[m:quotient[1]]">
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-    <m:mo>/</m:mo>
-    <xsl:apply-templates select="*[3]" mode = "semantics">
-      <xsl:with-param name="IN_PREC" select="$FUNCTION_PREC"/>
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-  </m:mfenced>
-</xsl:template>
-
-<xsl:template match = "m:apply[*[1][self::m:exp]]">
-  <m:msup>
-    <m:mo>e</m:mo>
-    <xsl:apply-templates select = "*[2]" mode = "semantics"/>
-  </m:msup>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:factorial[1]]">
-  <m:mrow>
-    <xsl:apply-templates select = "*[2]" mode = "semantics">
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-      <xsl:with-param name="PAR_NO_IGNORE" select="$NO"/>
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-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:max[1] | m:min[1]]">
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-
-<xsl:template match = "m:apply[m:minus[1]]">
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-  <xsl:param name="PARAM" select="$NO_PARAM"/>
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-
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-      <xsl:with-param name="PAREN" select="$PAREN"/>
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-  </xsl:if>
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-
-<xsl:template match = "m:apply[m:plus[1]]">
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-  <xsl:param name="PAREN" select="$PAR_NO"/>
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-
-<xsl:template match = "m:apply[m:plus[1]]" mode="plus">
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-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
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-      <xsl:with-param name="PARAM" select="$PARAM"/>
-      <xsl:with-param name="PAREN" select="$PAREN"/>
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-
-<xsl:template match = "m:apply[m:power[1]]">
-  <xsl:choose>
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-
-<xsl:template match = "m:apply[m:rem[1] | m:divide[1]]">
-  <xsl:param name="IN_PREC" select="$NO_PREC"/>
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:choose>
-    <xsl:when test="$IN_PREC &gt; $DIV_PREC or $IN_PREC=$DIV_PREC and $PARAM=$PAR_SAME">
-      <m:mfenced separators="">
-        <xsl:apply-templates select="." mode="remdiv">
-          <xsl:with-param name="PARAM" select="$IN_PREC"/>
-          <xsl:with-param name="PAREN" select="$PAR_YES"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:when test="$IN_PREC &gt; $NO_PREC and $IN_PREC &lt; $FUNCTION_PREC and not($SEM_SW=2)">
-      <xsl:apply-templates select="." mode="remdiv">
-        <xsl:with-param name="PARAM" select="$PARAM"/>
-        <xsl:with-param name="PAREN" select="$PAREN"/>
-        <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-      </xsl:apply-templates>
-    </xsl:when>
-    <xsl:otherwise>
-      <m:mrow>
-        <xsl:apply-templates select="." mode="remdiv">
-          <xsl:with-param name="PARAM" select="$IN_PREC"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mrow>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:rem[1] | m:divide[1]]" mode="remdiv">
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:apply-templates select = "*[2]" mode = "semantics">
-    <xsl:with-param name="IN_PREC" select="$DIV_PREC"/>
-      <xsl:with-param name="PARAM" select="$PARAM"/>
-      <xsl:with-param name="PAREN" select="$PAREN"/>
-      <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-  </xsl:apply-templates>
-  <xsl:if test="m:rem">
-    <m:mo>%</m:mo>
-  </xsl:if>
-  <xsl:if test="m:divide">
-    <m:mo>/</m:mo>
-  </xsl:if>
-  <xsl:apply-templates select = "*[3]" mode = "semantics">
-    <xsl:with-param name="IN_PREC" select="$DIV_PREC"/>
-    <xsl:with-param name="PARAM" select="$PAR_SAME"/>
-    <xsl:with-param name="PAREN" select="$PAREN"/>
-    <xsl:with-param name="PAR_NO_IGNORE" select="$NO"/>
-  </xsl:apply-templates>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:times[1]]">
-  <xsl:param name="IN_PREC" select="$NO_PREC"/>
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:choose>
-    <xsl:when test="$IN_PREC &gt; $MUL_PREC or $IN_PREC=$MUL_PREC and $PARAM=$PAR_SAME">
-      <m:mfenced separators="">
-        <xsl:apply-templates select="." mode="times">
-          <xsl:with-param name="PARAM" select="$IN_PREC"/>
-          <xsl:with-param name="PAREN" select="$PAR_YES"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:when test="$IN_PREC &gt; $NO_PREC and $IN_PREC &lt; $FUNCTION_PREC and not($SEM_SW=2)">
-      <xsl:apply-templates select="." mode="times">
-        <xsl:with-param name="PARAM" select="$PARAM"/>
-        <xsl:with-param name="PAREN" select="$PAREN"/>
-        <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-      </xsl:apply-templates>
-    </xsl:when>
-    <xsl:otherwise>
-      <m:mrow>
-        <xsl:apply-templates select="." mode="times">
-          <xsl:with-param name="PARAM" select="$IN_PREC"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mrow>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:times[1]]" mode="times">
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:apply-templates select="*[2]" mode = "semantics">
-    <xsl:with-param name="IN_PREC" select="$MUL_PREC"/>
-    <xsl:with-param name="PARAM" select="$PARAM"/>
-    <xsl:with-param name="PAREN" select="$PAREN"/>
-    <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-  </xsl:apply-templates>
-  <xsl:if test="*[3]">
-    <xsl:for-each select = "*[position()>2]">
-      <m:mo> <mchar name="InvisibleTimes"/> </m:mo>
-      <xsl:apply-templates select="." mode = "semantics">
-        <xsl:with-param name="IN_PREC" select="$MUL_PREC"/>
-        <xsl:with-param name="PAREN" select="$PAREN"/>
-        <xsl:with-param name="PAR_NO_IGNORE" select="$NO"/>
-      </xsl:apply-templates>
-    </xsl:for-each>
-  </xsl:if>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:root[1]]">
-  <m:msqrt>
-    <xsl:if test="*[2]=m:degree">
-      <xsl:apply-templates select="*[3]" mode = "semantics"/>
-      <xsl:apply-templates select="*[2]" mode = "semantics"/>
-    </xsl:if>
-    <xsl:if test="not(*[2]=m:degree)">
-      <xsl:apply-templates select="*[2]" mode = "semantics"/>
-      <m:mn>2</m:mn>
-    </xsl:if>
-  </m:msqrt>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:gcd[1]]">
-  <m:mrow>
-    <xsl:if test="not(parent::m:apply[m:power[1]])">
-      <m:mo>gcd</m:mo>
-    </xsl:if>
-    <xsl:if test="parent::m:apply[m:power[1]]">
-      <m:msup>
-        <m:mo>gcd</m:mo>
-        <xsl:apply-templates select = "../*[3]" mode = "semantics"/>
-      </m:msup>
-    </xsl:if>
-    <m:mfenced separators=",">
-      <xsl:for-each select = "*[position()>1]">
-        <xsl:apply-templates select = "." mode="semantics"/>
-      </xsl:for-each>
-    </m:mfenced>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:and[1]]">
-  <xsl:param name="IN_PREC" select="$NO_PREC"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:choose>
-    <xsl:when test="$IN_PREC &gt; $AND_PREC">
-      <m:mfenced separators="">
-        <xsl:apply-templates select="." mode="and">
-          <xsl:with-param name="PARAM" select="$IN_PREC"/>
-          <xsl:with-param name="PAREN" select="$PAR_YES"/>
-        </xsl:apply-templates>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:when test="$IN_PREC &gt; $NO_PREC and $IN_PREC &lt; $FUNCTION_PREC and not($SEM_SW=2)">
-      <xsl:apply-templates select="." mode="and">
-        <xsl:with-param name="PARAM" select="$IN_PREC"/>
-        <xsl:with-param name="PAREN" select="$PAREN"/>
-        <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-      </xsl:apply-templates>
-    </xsl:when>
-    <xsl:otherwise>
-      <m:mrow>
-        <xsl:apply-templates select="." mode="and">
-          <xsl:with-param name="PARAM" select="$IN_PREC"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mrow>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:and[1]]" mode="and">
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:apply-templates select="*[2]" mode = "semantics">
-    <xsl:with-param name="IN_PREC" select="$AND_PREC"/>
-    <xsl:with-param name="PARAM" select="$PARAM"/>
-    <xsl:with-param name="PAREN" select="$PAREN"/>
-    <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-  </xsl:apply-templates>
-  <xsl:for-each select = "*[position()>2]">
-    <m:mo> <mchar name="wedge"/> </m:mo>
-    <xsl:apply-templates select="." mode = "semantics">
-      <xsl:with-param name="IN_PREC" select="$AND_PREC"/>
-      <xsl:with-param name="PAREN" select="$PAREN"/>
-      <xsl:with-param name="PAR_NO_IGNORE" select="$NO"/>
-    </xsl:apply-templates>
-  </xsl:for-each>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:or[1]]">
-  <xsl:param name="IN_PREC" select="$NO_PREC"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:choose>
-    <xsl:when test="$IN_PREC &gt; $OR_PREC">
-      <m:mfenced separators="">
-        <xsl:apply-templates select="." mode="or">
-          <xsl:with-param name="PARAM" select="$IN_PREC"/>
-          <xsl:with-param name="PAREN" select="$PAR_YES"/>
-        </xsl:apply-templates>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:when test="$IN_PREC &gt; $NO_PREC and $IN_PREC &lt; $FUNCTION_PREC and not($SEM_SW=2)">
-      <xsl:apply-templates select="." mode="or">
-        <xsl:with-param name="PARAM" select="$IN_PREC"/>
-        <xsl:with-param name="PAREN" select="$PAREN"/>
-        <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-      </xsl:apply-templates>
-    </xsl:when>
-    <xsl:otherwise>
-      <m:mrow>
-        <xsl:apply-templates select="." mode="or">
-          <xsl:with-param name="PARAM" select="$IN_PREC"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mrow>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:or[1]]" mode="or">
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:apply-templates select="*[2]" mode = "semantics">
-    <xsl:with-param name="IN_PREC" select="$OR_PREC"/>
-    <xsl:with-param name="PARAM" select="$PARAM"/>
-    <xsl:with-param name="PAREN" select="$PAREN"/>
-    <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-  </xsl:apply-templates>
-  <xsl:for-each select = "*[position()>2]">
-    <m:mo> <mchar name="vee"/> </m:mo>
-    <xsl:apply-templates select="." mode = "semantics">
-      <xsl:with-param name="IN_PREC" select="$OR_PREC"/>
-      <xsl:with-param name="PAREN" select="$PAREN"/>
-      <xsl:with-param name="PAR_NO_IGNORE" select="$NO"/>
-    </xsl:apply-templates>
-  </xsl:for-each>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:xor[1]]">
-  <xsl:param name="IN_PREC" select="$NO_PREC"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:choose>
-    <xsl:when test="$IN_PREC &gt; $XOR_PREC">
-      <m:mfenced separators="">
-        <xsl:apply-templates select="." mode="xor">
-          <xsl:with-param name="PARAM" select="$IN_PREC"/>
-          <xsl:with-param name="PAREN" select="$PAR_YES"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:when test="$IN_PREC &gt; $NO_PREC and $IN_PREC &lt; $FUNCTION_PREC and not($SEM_SW=2)">
-      <xsl:apply-templates select="." mode="xor">
-        <xsl:with-param name="PARAM" select="$IN_PREC"/>
-        <xsl:with-param name="PAREN" select="$PAREN"/>
-      </xsl:apply-templates>
-    </xsl:when>
-    <xsl:otherwise>
-      <m:mrow>
-        <xsl:apply-templates select="." mode="xor">
-          <xsl:with-param name="PARAM" select="$IN_PREC"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mrow>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:xor[1]]" mode="xor">
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:apply-templates select="*[2]" mode = "semantics">
-    <xsl:with-param name="IN_PREC" select="$XOR_PREC"/>
-    <xsl:with-param name="PARAM" select="$PARAM"/>
-    <xsl:with-param name="PAREN" select="$PAREN"/>
-    <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-  </xsl:apply-templates>
-  <xsl:for-each select = "*[position()>2]">
-    <m:mo> <mchar name="xor"/> </m:mo>
-    <xsl:apply-templates select="." mode = "semantics">
-      <xsl:with-param name="IN_PREC" select="$XOR_PREC"/>
-      <xsl:with-param name="PAREN" select="$PAREN"/>
-      <xsl:with-param name="PAR_NO_IGNORE" select="$NO"/>
-    </xsl:apply-templates>
-  </xsl:for-each>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:not[1]]">
-  <m:mrow>
-    <m:mo>not</m:mo>
-    <xsl:apply-templates select = "*[2]" mode = "semantics">
-      <xsl:with-param name="IN_PREC" select="$FUNCTION_PREC"/>
-    </xsl:apply-templates>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:forall[1]]">
-  <m:mrow>
-    <m:mo>for all</m:mo>
-    <m:mfenced separators=",">
-      <xsl:for-each select = "m:bvar">
-        <xsl:apply-templates select = "." mode="semantics"/>
-      </xsl:for-each>
-    </m:mfenced>
-    <xsl:if test="m:condition">
-      <m:mo>:</m:mo>
-      <xsl:apply-templates select = "m:condition/*" mode = "semantics"/>
-      <m:mo>,</m:mo>
-    </xsl:if>
-    <xsl:apply-templates select = "*[position()>1 and not(self::m:bvar) and not(self::m:condition)]" mode = "semantics"/>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:exists[1]]">
-  <m:mrow>
-    <m:mo> <mchar name="Exists"/> </m:mo>
-    <m:mfenced separators=",">
-      <xsl:for-each select = "m:bvar">
-        <xsl:apply-templates select = "." mode="semantics"/>
-      </xsl:for-each>
-    </m:mfenced>
-    <xsl:if test="m:condition">
-      <m:mo>,</m:mo>
-      <xsl:apply-templates select = "m:condition/*" mode = "semantics"/>
-    </xsl:if>
-    <m:mo>:</m:mo>
-    <xsl:apply-templates select = "*[position()>1 and not(self::m:bvar) and not(self::m:condition)]" mode = "semantics"/>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:abs[1]]">
-  <xsl:if test="not(parent::m:apply[m:power[1]])">
-    <m:mfenced open="|" close="|" separators="">
-      <xsl:apply-templates select = "*[position()>1]" mode = "semantics"/>
-    </m:mfenced>
-  </xsl:if>
-  <xsl:if test="parent::m:apply[m:power[1]]">
-    <m:msup>
-      <m:mfenced open="|" close="|" separators="">
-        <xsl:apply-templates select = "*[position()>1]" mode = "semantics"/>
-      </m:mfenced>
-      <xsl:apply-templates select = "../*[3]" mode = "semantics"/>
-    </m:msup>
-  </xsl:if>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:conjugate[1]]">
-  <m:mover>
-    <m:mrow>
-      <xsl:apply-templates select = "*[position()>1]" mode = "semantics"/>
-    </m:mrow>
-    <m:mo> <mchar name="UnderBar"/> </m:mo>
-  </m:mover>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:arg[1] | m:real[1] | m:imaginary[1]]">
-  <m:mrow>
-    <xsl:choose>
-      <xsl:when test="m:arg">
-        <m:mo>arg</m:mo>
-      </xsl:when>
-      <xsl:when test="m:real">
-        <m:mo>Real</m:mo>
-      </xsl:when>
-      <xsl:when test="m:imaginary">
-        <m:mo>Imaginary</m:mo>
-      </xsl:when>
-    </xsl:choose>
-    <m:mfenced separators="">
-      <xsl:apply-templates select = "*[2]" mode = "semantics"/>
-    </m:mfenced>
-  </m:mrow>
-</xsl:template>
-
-
-<!-- RELATIONS -->
-
-<xsl:template match = "m:apply[m:neq | m:approx | m:tendsto | m:implies | m:in | m:notin | m:notsubset | m:notprsubset | m:subset | m:prsubset | m:eq | m:gt | m:lt | m:geq | m:leq | m:equivalent]">
-  <m:mrow>
-    <xsl:if test="*[1]=m:neq or *[1]=m:approx or *[1]=m:tendsto or *[1]=m:implies or *[1]=m:in or *[1]=m:notin or *[1]=m:notsubset or *[1]=m:notprsubset">
-      <xsl:apply-templates select = "*[2]" mode = "semantics"/>
-      <xsl:if test="*[1]=m:neq">
-        <m:mo> <mchar name="NotEqual"/> </m:mo>
-      </xsl:if>
-      <xsl:if test="*[1]=m:approx">
-        <m:mo> <mchar name="approxeq"/> </m:mo>
-      </xsl:if>
-      <xsl:if test="*[1]=m:tendsto">
-        <m:mo> <mchar name="RightArrow"/> </m:mo>
-      </xsl:if>
-      <xsl:if test="*[1]=m:implies">
-        <m:mo> <mchar name="DoubleRightArrow"/> </m:mo>
-      </xsl:if>
-      <xsl:if test="*[1]=m:in">
-        <m:mo> <mchar name="Element"/> </m:mo>
-      </xsl:if>
-      <xsl:if test="*[1]=m:notin">
-        <m:mo> <mchar name="NotElement"/> </m:mo>
-      </xsl:if>
-      <xsl:if test="*[1]=m:notsubset">
-        <m:mo> <mchar name="NotSubset"/> </m:mo>
-      </xsl:if>
-      <xsl:if test="*[1]=m:notprsubset">
-        <m:mo> <mchar name="NotSubsetEqual"/> </m:mo>
-      </xsl:if>
-      <xsl:apply-templates select = "*[3]" mode = "semantics"/>
-      <xsl:if test="*[1]=m:tendsto and m:tendsto[1][@type='below']">
-        <m:mo>-</m:mo>
-      </xsl:if>
-      <xsl:if test="*[1]=m:tendsto and m:tendsto[1][@type='above']">
-        <m:mo>+</m:mo>
-      </xsl:if>
-    </xsl:if>
-    <xsl:if test="*[1]=m:subset or *[1]=m:prsubset or *[1]=m:eq or *[1]=m:gt or *[1]=m:lt or *[1]=m:geq or *[1]=m:leq or *[1]=m:equivalent">
-      <xsl:apply-templates select = "*[2]" mode="semantics"/>
-      <xsl:for-each select = "*[position()>2]">
-        <xsl:if test="../*[self::m:subset][1]">
-          <m:mo>  <mchar name="SubsetEqual"/> </m:mo>
-        </xsl:if>
-        <xsl:if test="../*[self::m:prsubset][1]">
-          <m:mo> <mchar name="subset"/> </m:mo>
-        </xsl:if>
-        <xsl:if test="../*[self::m:eq][1]">
-          <m:mo>=</m:mo>
-        </xsl:if>
-        <xsl:if test="../*[self::m:gt][1]">
-          <m:mo>&gt;</m:mo>
-        </xsl:if>
-        <xsl:if test="../*[self::m:lt][1]">
-          <m:mo>&lt;</m:mo>
-        </xsl:if>
-        <xsl:if test="../*[self::m:geq][1]">
-          <m:mo> <mchar name="geq"/> </m:mo>
-        </xsl:if>
-        <xsl:if test="../*[self::m:leq][1]">
-          <m:mo> <mchar name="leq"/> </m:mo>
-        </xsl:if>
-        <xsl:if test="../*[self::m:equivalent][1]">
-          <m:mo> <mchar name="Congruent"/> </m:mo>
-        </xsl:if>
-        <xsl:apply-templates select = "." mode="semantics"/>
-      </xsl:for-each>
-    </xsl:if>
-  </m:mrow>
-</xsl:template>
-
-
-<!-- CALCULUS -->
-
-<xsl:template match = "m:apply[*[1][self::m:ln]]">
-  <m:mrow>
-    <xsl:choose>
-      <xsl:when test="parent::m:apply[m:power[1]]">
-        <m:msup>
-          <m:mo>ln</m:mo>
-          <xsl:apply-templates select = "../*[3]" mode = "semantics"/>
-        </m:msup>
-      </xsl:when>
-      <xsl:otherwise>
-        <m:mo>ln</m:mo>
-      </xsl:otherwise>
-    </xsl:choose>
-    <xsl:apply-templates select = "*[2]" mode = "semantics">
-      <xsl:with-param name="IN_PREC" select="$FUNCTION_PREC"/>
-    </xsl:apply-templates>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:log[1]]">
-  <m:mrow>
-    <xsl:choose>
-      <xsl:when test="parent::m:apply[m:power[1]]">
-        <xsl:if test="not(*[2]=m:logbase)">
-          <m:msup>
-            <m:mo>log</m:mo>
-            <xsl:apply-templates select = "../*[3]" mode = "semantics"/>
-          </m:msup>
-        </xsl:if>
-        <xsl:if test="*[2]=m:logbase">
-          <m:msubsup>
-            <m:mo>log</m:mo>
-            <xsl:apply-templates select = "../*[3]" mode = "semantics"/>
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-          <m:msup>
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-<xsl:template match = "m:apply[m:partialdiff[1]]">
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-<xsl:template match = "m:lowlimit | m:uplimit | m:bvar | m:degree | m:logbase">
-  <xsl:apply-templates mode = "semantics"/>
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-
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-<xsl:template match = "m:apply[m:laplacian[1]]">
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-
-
-<!-- SET THEORY -->
-
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-<xsl:template match = "m:apply[m:union[1]]">
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-    <xsl:when test="$IN_PREC &gt; $NO_PREC and $IN_PREC &lt; $FUNCTION_PREC and not($SEM_SW=2)">
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-<xsl:template match = "m:apply[m:union[1]]" mode="union">
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-      <xsl:with-param name="IN_PREC" select="$UNION_PREC"/>
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-
-<xsl:template match = "m:apply[m:intersect[1]]">
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-  <xsl:param name="PAREN" select="$PAR_NO"/>
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-
-<xsl:template match = "m:apply[m:intersect[1]]" mode="intersect">
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-    <xsl:with-param name="PARAM" select="$PARAM"/>
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-
-<xsl:template match = "m:apply[m:setdiff[1]]">
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-<xsl:template match = "m:apply[m:setdiff[1]]" mode="setdiff">
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-
-<xsl:template match = "m:apply[m:card[1]]">
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-
-
-<!-- SEQUENCES AND SERIES -->
-
-<xsl:template match = "m:apply[m:sum[1] | m:product[1]]">
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-          <xsl:if test="*[1]=m:product">
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-
-<xsl:template match = "m:apply[m:limit[1]]">
-  <m:mrow>
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-
-
-<!-- TRIGONOMETRY -->
-
-<xsl:template match = "m:apply[*[1][self::m:sin | self::m:cos | self::m:tan | self::m:sec | self::m:csc | self::m:cot | self::m:sinh | self::m:cosh | self::m:tanh | self::m:sech | self::m:csch | self::m:coth | self::m:arcsin | self::m:arccos | self::m:arctan]]">
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-
-<xsl:template match = "m:*" mode = "trigonometry">
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-
-
-<!-- STATISTICS -->
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-<xsl:template match = "m:apply[m:mean[1]]">
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-
-<xsl:template match = "m:apply[m:sdev[1]]">
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-
-<xsl:template match = "m:apply[m:variance[1]]">
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-
-<xsl:template match = "m:apply[m:median[1]]">
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-
-<xsl:template match = "m:apply[m:mode[1]]">
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-
-<xsl:template match = "m:apply[m:moment[1]]">
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-
-
-<!-- LINEAR ALGEBRA -->
-
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-          <xsl:apply-templates select="." mode = "semantics"/>
-        </m:mtd>
-      </xsl:for-each>
-    </m:mtable>
-  </m:mfenced>
-</xsl:template>
-
-<xsl:template match = "m:matrix">
-  <m:mfenced separators="">
-    <m:mtable>
-      <xsl:apply-templates mode = "semantics"/>
-    </m:mtable>
-  </m:mfenced>
-</xsl:template>
-
-<xsl:template match = "m:matrixrow">
-  <m:mtr>
-    <xsl:for-each select="*">
-      <m:mtd>
-        <xsl:apply-templates select="." mode = "semantics"/>
-      </m:mtd>
-    </xsl:for-each>
-  </m:mtr>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:determinant[1]]">
-  <m:mrow>
-    <m:mo>det</m:mo>
-    <xsl:apply-templates select = "*[2]" mode = "semantics"/>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:transpose[1]]">
-  <m:msup>
-    <xsl:apply-templates select = "*[2]" mode = "semantics"/>
-    <m:mo>T</m:mo>
-  </m:msup>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:selector[1]]">
-  <xsl:if test="*[2]=m:matrix and *[3]=m:cn">
-      <xsl:variable name="m" select = "*[3]"/>
-      <xsl:choose>
-        <xsl:when test="*[4]=m:cn">
-          <xsl:variable name="n" select = "*[4]"/>
-          <xsl:copy-of select = "m:matrix/*[position()=$m]/*[position()=$n]"/>
-        </xsl:when>
-        <xsl:otherwise>
-          <xsl:copy-of select = "m:matrix/*[position()=$m]"/>
-        </xsl:otherwise>
-      </xsl:choose>
-  </xsl:if>
-  <xsl:if test="(*[2]=m:vector or *[2]=m:list) and *[3]=m:cn">
-    <xsl:variable name="m" select = "*[3]"/>
-    <xsl:copy-of select = "*[2]/*[position()=$m]"/>
-  </xsl:if>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:vectorproduct[1] | m:scalarproduct[1] | m:outerproduct[1]]">
-  <m:mrow>
-    <xsl:apply-templates select="*[2]" mode = "semantics"/>
-    <xsl:choose>
-      <xsl:when test="m:vectorproduct[1]">
-        <m:mo> <mchar name="Cross"/> </m:mo>
-      </xsl:when>
-      <xsl:when test="m:scalarproduct[1] | m:outerproduct[1]">
-        <m:mo>.</m:mo>
-      </xsl:when>
-    </xsl:choose>
-    <xsl:apply-templates select="*[3]" mode = "semantics"/>
-  </m:mrow>
-</xsl:template>
-
-</xsl:stylesheet>
diff --git a/helm/style/mmlextension.xsl b/helm/style/mmlextension.xsl
deleted file mode 100644
index 566ccdf0a..000000000
--- a/helm/style/mmlextension.xsl
+++ /dev/null
@@ -1,1382 +0,0 @@
-<?xml version="1.0"?>
-
-<!--***********************************************************************--> 
-<!-- Extension to the XSLT version 0.07 of MathML content to presentation: -->
-<!-- First draft: February 19 2000, Andrea Asperti, Irene Schena           -->
-<!-- Revised: March 3 2000, Irene Schena                                   -->
-<!-- Revised: March 15 2000, Claudio Sacerdoti Coen, Irene Schena          -->
-<!-- Revised: March 21 2000, Irene Schena                                  -->
-<!--***********************************************************************--> 
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML"
-                              xmlns:helm="http://www.cs.unibo.it/helm">
-
-<xsl:import href="mml2mmlv1_0.xsl"/>
-
-<!--***********************************************************************-->
-<!-- Parameter affecting line-breaking                                     -->
-<!--***********************************************************************-->
-
-<xsl:variable name="framewidth" select="30"/>
-
-<!--***********************************************************************-->
-<!-- Gli oggetti sono stampati come mtext all'interno di una marca toplevel-->
-<!-- math ma al di fuori di semantics. Ora vi sono tanti semantics quanti  -->
-<!-- sono i termini: la presentation per un termine e' generata come primo -->
-<!-- figlio di un semantics e l'originario content viene inserito nel      -->
-<!-- nel secondo figlio di semantics, annotation-xml                       -->
-<!--***********************************************************************-->
-
-<!--**********************-->
-<!--        OBJECTS       -->
-<!--**********************-->
-
-<xsl:template match="/">
- <xsl:processing-instruction name="cocoon-format">type="text/xhtml"</xsl:processing-instruction>
- <xsl:apply-templates select="*"/>
-</xsl:template>
-
-<!-- DEFINITION -->
-
-<xsl:template match="Definition">
-    <m:math>
-     <m:mtable align="baseline 1" equalrows="false" columnalign="left" helm:xref="{@helm:xref}">
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>DEFINITION <xsl:value-of select="@name"/>(<xsl:if test="string(./Params) != &quot;&quot;"><xsl:value-of select="Params"/></xsl:if>) OF TYPE</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-         <xsl:apply-templates select="type/*[1]"/>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>AS</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-         <xsl:apply-templates select="body/*[1]"/>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-     </m:mtable>
-    </m:math>
-</xsl:template>
-
-<!-- AXIOM -->
-
-<xsl:template match="Axiom">
-    <m:math>
-     <m:mtable align="baseline 1" equalrows="false" columnalign="left" helm:xref="{@helm:xref}">
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>AXIOM <xsl:value-of select="@name"/>(<xsl:if test="string(./Params) != &quot;&quot;"><xsl:value-of select="Params"/></xsl:if>) OF TYPE</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
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-         <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-         <xsl:apply-templates select="type/*[1]"/>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-     </m:mtable>
-    </m:math>
-</xsl:template>
-
-<!-- UNFINISHED PROOF -->
-
-<xsl:template match="CurrentProof">
-    <m:math>
-     <m:mtable align="baseline 1" equalrows="false" columnalign="left" helm:xref="{@helm:xref}">
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>UNFINISHED PROOF <xsl:value-of select="@name"/>(<xsl:if test="string(./Params) != &quot;&quot;"><xsl:value-of select="Params"/></xsl:if>)</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>THESIS:</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
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-         <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-         <xsl:apply-templates select="type/*[1]"/>
-        </m:mrow>
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-      <m:mtr>
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-         <m:mtext>CONJECTURES:</m:mtext>
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-      <xsl:for-each select="Conjecture">
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-         <m:mtext><xsl:value-of select="./@no"/>:</m:mtext>
-         <xsl:apply-templates select="./*[1]"/>
-        </m:mrow>
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-      </xsl:for-each>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
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-        </m:mrow>
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-        </m:mrow>
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-      </m:mtr>
-     </m:mtable>
-    </m:math>
-</xsl:template>
-
-<!-- MUTUAL INDUCTIVE DEFINITION -->
-
-<xsl:template match="InductiveDefinition">
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-     <xsl:for-each select="InductiveType">
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-          </xsl:when>
-          <xsl:otherwise>
-           <m:mtext>COINDUCTIVE DEFINITION</m:mtext>
-          </xsl:otherwise>
-          </xsl:choose>  
-         </xsl:when>
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-         </xsl:when>
-         <xsl:otherwise>
-          <m:mtext>]</m:mtext>
-         </xsl:otherwise>
-         </xsl:choose>
-        </m:mrow>
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-      </m:mtr>
-      <m:mtr>
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-         <m:mtext>OF ARITY</m:mtext>
-        </m:mrow>
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-         <xsl:apply-templates select="./arity/*[1]"/>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>BUILT FROM</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <xsl:for-each select="./Constructor">
-      <m:mtr>
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-
-<!-- VARIABLE -->
-
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-      <m:mtr>
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-    </m:math>
-</xsl:template>
-
-<!--**********************-->
-<!--        TERMS         -->
-<!--**********************-->
-
-<xsl:template match="m:bvar">
- <xsl:choose>
-  <xsl:when test="m:type">
-   <xsl:variable name="charlength">
-    <xsl:apply-templates select="m:ci" mode="charcount"/>
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-  <xsl:otherwise>
-   <xsl:apply-templates select="m:ci"/>
-  </xsl:otherwise>
- </xsl:choose>
-</xsl:template>
-
-
-<!-- CSYMBOL -->
-
-<xsl:template match="m:apply[m:csymbol]">
-    <xsl:variable name="name"><xsl:value-of select="m:csymbol"/></xsl:variable>
-    <xsl:variable name="charlength"><xsl:apply-templates select="m:csymbol" mode="charcount"/></xsl:variable>
-    <m:mrow>
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-      <xsl:attribute name="helm:xref"><xsl:value-of select="@helm:xref"/></xsl:attribute>
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-          </m:mtd>
-         </m:mtr>
-         </xsl:if>
-         <m:mtr>
-          <m:mtd>
-           <m:mrow>
-            <m:mo>OF</m:mo>
-           </m:mrow>
-          </m:mtd>
-         </m:mtr>
-         <xsl:for-each select="*[position() mod 2 = 0 and position()>3]">
-         <xsl:variable name="charlength"><xsl:apply-templates select="." mode="charcount"><xsl:with-param name="nosibling" select="1"/></xsl:apply-templates></xsl:variable>
-         <m:mtr>
-          <m:mtd>
-           <m:mrow>
-            <xsl:choose>
-            <xsl:when test="position() = 1">
-              <m:mphantom><m:mtext>|</m:mtext></m:mphantom>
-            </xsl:when>
-            <xsl:otherwise>
-             <m:mo stretchy="false">|</m:mo>
-            </xsl:otherwise>
-            </xsl:choose>
-            <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
-            <xsl:apply-templates select="."/>
-            <xsl:if test="$framewidth > $charlength">
-             <m:mo color="Green">&#x21d2;</m:mo>
-             <xsl:apply-templates select="following-sibling::*[position()= 1]"/>
-            </xsl:if>
-           </m:mrow>
-          </m:mtd>
-         </m:mtr>
-         <xsl:if test="$charlength >= $framewidth">
-         <m:mtr>
-          <m:mtd>
-           <m:mrow>
-            <m:mphantom><m:mtext>|_</m:mtext></m:mphantom>  
-            <m:mo color="Green">&#x21d2;</m:mo>
-            <xsl:apply-templates select="following-sibling::*[position()= 1]"/>
-           </m:mrow>
-          </m:mtd>
-         </m:mtr>
-         </xsl:if>
-        </xsl:for-each>
-         <m:mtr>
-          <m:mtd>
-           <m:mrow>
-            <m:mo>END</m:mo>
-           </m:mrow>
-          </m:mtd>
-         </m:mtr>
-        </m:mtable>
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-       <xsl:otherwise>
-        <m:mo>&lt;</m:mo><xsl:apply-templates select="*[position()=2]"/><m:mo>&gt;</m:mo>
-        <m:mo>CASES</m:mo>
-        <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
-        <xsl:apply-templates select="*[position()=3]"/>
-        <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
-        <m:mo>OF</m:mo>
-        <xsl:for-each select="*[position() mod 2 = 0 and position()>3]">
-         <xsl:choose>
-         <xsl:when test="position() != 1">
-          <m:mo stretchy="false">|</m:mo>
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-         </xsl:choose>
-         <xsl:apply-templates select="."/>
-         <m:mo color="Green">&#x21d2;</m:mo>
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-        <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
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-      </xsl:when>
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-        <m:mtable align="baseline 1" equalrows="false" columnalign="left">
-         <m:mtr>
-          <m:mtd>
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-            <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
-            <m:mi><xsl:value-of select="m:ci"/></m:mi>
-            <m:mo stretchy="false">{</m:mo>
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-         </m:mtr>
-         <m:mtr>
-          <m:mtd>
-           <m:mrow>
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-            <m:mtable align="baseline 1" equalrows="false" columnalign="left">
-            <xsl:for-each select="m:bvar"> 
-             <xsl:variable name="charlength"><xsl:apply-templates select="m:type" mode="charcount"><xsl:with-param name="nosibling" select="1"/></xsl:apply-templates></xsl:variable>
-             <m:mtr>
-              <m:mtd>
-               <m:mrow>
-                <m:mi><xsl:value-of select="m:ci"/></m:mi>
-                <m:mo>:</m:mo>
-                <xsl:if test="$framewidth > $charlength">
-                 <xsl:apply-templates select="m:type"/>
-                </xsl:if>
-               </m:mrow>
-              </m:mtd>
-             </m:mtr> 
-             <xsl:if test="$charlength >= $framewidth">
-             <m:mtr>
-              <m:mtd>
-               <m:mrow>
-                <m:mphantom><m:mtext>:=</m:mtext></m:mphantom>
-                <xsl:apply-templates select="m:type"/>
-               </m:mrow>
-              </m:mtd>
-             </m:mtr>
-             </xsl:if>
-             <m:mtr>
-              <m:mtd>
-               <m:mrow>
-                <m:mo>:=</m:mo>
-                <xsl:apply-templates select="following-sibling::*[position()=1]"/>
-               </m:mrow>
-              </m:mtd>
-             </m:mtr> 
-            </xsl:for-each>
-            </m:mtable>
-           </m:mrow>
-          </m:mtd>
-         </m:mtr>
-         <m:mtr>
-          <m:mtd>
-           <m:mrow>
-            <m:mo stretchy="false">}</m:mo>
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-          </m:mtd>
-         </m:mtr>
-        </m:mtable>
-       </xsl:when>
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-        <m:mo>FIX</m:mo>
-        <m:mi><xsl:value-of select="m:ci"/></m:mi>
-        <m:mo stretchy="false">{</m:mo>
-        <m:mtable align="baseline 1" equalrows="false" columnalign="left">
-        <xsl:for-each select="m:bvar"> 
-         <m:mtr>
-          <m:mtd>
-           <m:mrow>
-            <m:mi><xsl:value-of select="m:ci"/></m:mi>
-            <m:mo>:</m:mo>
-            <xsl:apply-templates select="m:type"/>
-            <m:mo>:=</m:mo>
-            <xsl:apply-templates select="following-sibling::*[position() = 1]"/>
-            <xsl:if test="position()=last()">
-             <m:mo stretchy="false">}</m:mo>
-            </xsl:if>
-           </m:mrow>
-          </m:mtd>
-         </m:mtr>
-         </xsl:for-each>
-        </m:mtable>
-       </xsl:otherwise>
-       </xsl:choose>
-      </xsl:when>
-      <xsl:when test="$name='cofix'">
-       <xsl:choose>
-       <xsl:when test="$charlength >= $framewidth">
-        <m:mtable align="baseline 1" equalrows="false" columnalign="left">
-         <m:mtr>
-          <m:mtd>
-           <m:mrow>
-            <m:mo>COFIX</m:mo>
-            <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
-            <m:mi><xsl:value-of select="m:ci"/></m:mi>
-            <m:mo stretchy="false">{</m:mo>
-           </m:mrow>
-          </m:mtd>
-         </m:mtr>
-         <m:mtr>
-          <m:mtd>
-           <m:mrow>
-            <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-            <m:mtable align="baseline 1" equalrows="false" columnalign="left">
-            <xsl:for-each select="m:bvar">
-             <xsl:variable name="charlength"><xsl:apply-templates select="m:type" mode="charcount"><xsl:with-param name="nosibling" select="1"/></xsl:apply-templates></xsl:variable> 
-             <m:mtr>
-              <m:mtd>
-               <m:mrow>
-                <m:mi><xsl:value-of select="m:ci"/></m:mi>
-                <m:mo>:</m:mo>
-                <xsl:if test="$framewidth > $charlength">
-                 <xsl:apply-templates select="m:type"/>
-                </xsl:if>
-               </m:mrow>
-              </m:mtd>
-             </m:mtr> 
-             <xsl:if test="$charlength >= $framewidth">
-             <m:mtr>
-              <m:mtd>
-               <m:mrow>
-                <m:mphantom><m:mtext>:=</m:mtext></m:mphantom>
-                <xsl:apply-templates select="m:type"/>
-               </m:mrow>
-              </m:mtd>
-             </m:mtr>
-             </xsl:if>
-             <m:mtr>
-              <m:mtd>
-               <m:mrow>
-                <m:mo>:=</m:mo>
-                <xsl:apply-templates select="following-sibling::*[position() = 1]"/>
-               </m:mrow>
-              </m:mtd>
-             </m:mtr>
-            </xsl:for-each>
-            </m:mtable>
-           </m:mrow>
-          </m:mtd>
-         </m:mtr>
-         <m:mtr>
-          <m:mtd>
-           <m:mrow>
-            <m:mo stretchy="false">}</m:mo>
-           </m:mrow>
-          </m:mtd>
-         </m:mtr>
-        </m:mtable>
-       </xsl:when>
-       <xsl:otherwise>
-        <m:mo>COFIX</m:mo>
-        <m:mi><xsl:value-of select="m:ci"/></m:mi>
-        <m:mo stretchy="false">{</m:mo>
-        <m:mtable align="baseline 1" equalrows="false" columnalign="left">  
-        <xsl:for-each select="m:bvar"> 
-         <m:mtr>
-          <m:mtd>
-           <m:mrow>
-            <m:mi><xsl:value-of select="m:ci"/></m:mi>
-            <m:mo>:</m:mo>
-            <xsl:apply-templates select="m:type"/>
-            <m:mo>:=</m:mo>
-            <xsl:apply-templates select="following-sibling::*[position() = 1]"/>
-            <xsl:if test="position()=last()">
-             <m:mo stretchy="false">}</m:mo>
-            </xsl:if>
-           </m:mrow>
-          </m:mtd>
-         </m:mtr>
-         </xsl:for-each>
-        </m:mtable>
-       </xsl:otherwise>
-       </xsl:choose>
-      </xsl:when>
-      <!-- ***************************************** -->
-      <!-- *********** PROOF ELEMENTS ************** -->
-      <!-- ***************************************** -->
-      <xsl:when test="$name='proof'">
-        <m:mtable align="baseline 1" equalrows="false" columnalign="left">
-         <m:mtr>
-          <m:mtd>
-           <m:mrow>
-            <xsl:apply-templates select="*[position()=2]"/>
-           </m:mrow>
-          </m:mtd>
-         </m:mtr>
-         <m:mtr>
-          <m:mtd>
-           <m:mrow>
-            <m:mtext color="#b03060">we proved </m:mtext>
-            <xsl:apply-templates select="*[position()=3]"/>
-           </m:mrow>
-          </m:mtd>
-         </m:mtr>
-        </m:mtable>
-      </xsl:when>
-      <xsl:when test="$name='letin'">
-        <m:mtable align="baseline 1" equalrows="false" columnalign="left">
-         <!-- <xsl:for-each select="APPLY[m:csymbol and (string(m:csymbol)='let')]"> -->
-	 <xsl:for-each select="*[(last() > position()) and (position()>1)]">
-         <m:mtr>
-          <m:mtd>
-           <m:mrow>
-            <xsl:apply-templates select="."/>
-           </m:mrow>
-          </m:mtd>
-         </m:mtr>
-         </xsl:for-each>
-         <m:mtr>
-          <m:mtd>
-           <m:mrow>
-            <xsl:apply-templates select="*[position()=last()]"/>
-           </m:mrow>
-          </m:mtd>
-         </m:mtr>
-        </m:mtable>
-      </xsl:when>
-      <xsl:when test="$name='let'">
-       <m:mtext>(</m:mtext>
-       <xsl:apply-templates select="m:ci"/>
-       <m:mtext>) </m:mtext>
-       <xsl:apply-templates select="*[3]"/>
-      </xsl:when>
-      <xsl:when test="$name='thread'">
-        <m:mtable align="baseline 1" equalrows="false" columnalign="left">
-         <m:mtr>
-          <m:mtd>
-           <m:mrow>
-            <xsl:choose>
-             <xsl:when test="name(*[last()])='m:apply'">
-              <xsl:apply-templates select="*[last()]"/>
-             </xsl:when>
-             <xsl:otherwise>
-              <m:mtext>Consider </m:mtext>
-              <xsl:apply-templates select="*[last()]"/>
-             </xsl:otherwise>
-            </xsl:choose>
-           </m:mrow>
-          </m:mtd>
-         </m:mtr>
-	 <xsl:apply-templates mode="thread" select="*[(last()-2)]"/> 
-        </m:mtable>
-      </xsl:when> 
-      <xsl:when test="$name='rewrite_and_apply'">
-        <m:mtable>
-         <m:mtr>
-          <m:mtd>
-           <m:mrow>
-            <m:mtext>Rewrite</m:mtext>
-            <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
-            <xsl:apply-templates select="*[2]/*[2]"/>
-	    <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
-	    <m:mtext>with</m:mtext>
-            <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
-            <xsl:apply-templates select="*[2]/*[3]"/>
-            <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
-            <m:mtext>by</m:mtext>
-            <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
-            <xsl:apply-templates select="*[2]/*[4]"/>
-            <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
-            <m:mtext>in</m:mtext>
-            <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
-            <xsl:apply-templates select="*[3]"/>
-            <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
-            <m:mtext>and apply</m:mtext>
-            <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
-            <xsl:apply-templates select="*[position()>3]"/>
-           </m:mrow>
-          </m:mtd>
-         </m:mtr>
-       </m:mtable>
-      </xsl:when> 
-      <xsl:when test="$name='and_ind'">
-        <m:mtable align="baseline 1" equalrows="false" columnalign="left">
-         <m:mtr>
-          <m:mtd>
-           <m:mrow>
-            <xsl:choose>
-             <xsl:when test="name(*[2])='m:apply'">
-              <xsl:apply-templates select="*[2]"/>
-             </xsl:when>
-             <xsl:otherwise>
-              <m:mtext>Consider </m:mtext>
-              <xsl:apply-templates select="*[2]"/>
-             </xsl:otherwise>
-            </xsl:choose>
-           </m:mrow>
-          </m:mtd>
-         </m:mtr>
-         <m:mtr>
-          <m:mtd>
-           <m:mtext>In particular, we have</m:mtext>
-          </m:mtd>
-         </m:mtr>
-         <m:mtr>
-          <m:mtd>
-           <m:mrow>
-            <m:mtext>(</m:mtext>
-            <xsl:apply-templates select="*[3]"/>
-            <m:mtext>)</m:mtext>
-            <xsl:apply-templates select="*[4]"/>
-            </m:mrow>
-          </m:mtd>
-         </m:mtr>
-         <m:mtr>
-          <m:mtd>
-           <m:mrow>
-            <m:mtext>(</m:mtext>
-            <xsl:apply-templates select="*[5]"/>
-            <m:mtext>)</m:mtext>
-            <xsl:apply-templates select="*[6]"/>
-            </m:mrow>
-          </m:mtd>
-         </m:mtr>
-         <m:mtr>
-          <m:mtd>
-           <m:mrow>
-            <xsl:apply-templates select="*[7]"/>
-           </m:mrow>
-          </m:mtd>
-         </m:mtr>
-        </m:mtable>
-      </xsl:when>
-      <xsl:when test="$name='or_ind'">
-        <m:mtable align="baseline 1" equalrows="false" columnalign="left">
-         <m:mtr>
-          <m:mtd>
-           <m:mrow>
-            <xsl:choose>
-             <xsl:when test="name(*[2])='m:apply'">
-              <xsl:apply-templates select="*[2]"/>
-             </xsl:when>
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-              <m:mtext>Consider</m:mtext>
-              <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
-              <xsl:apply-templates select="*[2]"/>
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-            </xsl:choose>
-           </m:mrow>
-          </m:mtd>
-         </m:mtr>
-         <m:mtr>
-          <m:mtd>
-           <m:mtext>We prove</m:mtext>
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-           <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
-           <m:mtext>by cases:</m:mtext>
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-         </m:mtr>
-         <m:mtr>
-          <m:mtd>
-           <m:mrow>
-            <m:mtext>*</m:mtext>
-            <xsl:apply-templates select="*[4]"/>
-           </m:mrow>
-          </m:mtd>
-         </m:mtr>
-         <m:mtr>
-          <m:mtd>
-           <m:mrow>
-            <m:mtext>*</m:mtext>
-            <xsl:apply-templates select="*[5]"/>
-           </m:mrow>
-          </m:mtd>
-         </m:mtr>
-        </m:mtable>
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-      <xsl:otherwise>
-       <m:ci>ERROR</m:ci>
-      </xsl:otherwise>
-     </xsl:choose>
-    </m:mrow>
-</xsl:template>
-
-<xsl:template match="*" mode="thread">
- <xsl:variable name="name"><xsl:value-of select="following-sibling::*[position()=1]/m:csymbol"/></xsl:variable>
- <xsl:choose>
-  <xsl:when test="$name='rw_step'">
-         <m:mtr>
-          <m:mtd>
-           <m:mrow>
-            <m:mtext>Rewrite</m:mtext>
-            <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
-            <xsl:apply-templates select="following-sibling::*[position()=1]/*[2]"/>
-	    <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
-	    <m:mtext>with</m:mtext>
-            <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
-            <xsl:apply-templates select="following-sibling::*[position()=1]/*[3]"/>
-            <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
-            <m:mtext>by</m:mtext>
-            <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
-            <xsl:apply-templates select="following-sibling::*[position()=1]/*[4]"/>
-           </m:mrow>
-          </m:mtd>
-         </m:mtr>
-         <m:mtr>
-          <m:mtd>
-           <m:mrow>
-            <xsl:apply-templates select="."/>
-           </m:mrow>
-          </m:mtd>
-         </m:mtr>
-   </xsl:when>
-   <xsl:otherwise>
-         <m:mtr>
-          <m:mtd>
-           <m:mrow>
-            <xsl:apply-templates select="following-sibling::*[position()=1]"/>
-           </m:mrow>
-          </m:mtd>
-         </m:mtr>
-         <m:mtr>
-          <m:mtd>
-           <m:mrow>
-            <xsl:apply-templates select="."/>
-           </m:mrow>
-          </m:mtd>
-         </m:mtr>
-    </xsl:otherwise>
-   </xsl:choose>
-         <xsl:apply-templates mode="thread" select="preceding-sibling::*[position()=2]"/>
-</xsl:template>
-
-
-<!-- LAMBDA -->
-
-<xsl:template match="m:lambda">
-    <xsl:variable name="charlength"><xsl:apply-templates select="*[position()=1]" mode="charcount"/></xsl:variable>
-    <m:mrow helm:xref="{@helm:xref}">
-     <xsl:choose>
-     <xsl:when test="$charlength >= $framewidth">
-      <m:mtable align="baseline 1" equalrows="false" columnalign="left">
-        <m:mtr>
-          <m:mtd>
-            <m:mo color="Red">&#x03bb;</m:mo>
-            <xsl:apply-templates select="m:bvar"/>
-          </m:mtd>
-         </m:mtr>
-       <m:mtr>
-        <m:mtd>
-         <m:mrow>
-          <m:mo>.</m:mo>
-          <xsl:apply-templates select="*[position()=2]"/>
-         </m:mrow>
-        </m:mtd>
-       </m:mtr>
-      </m:mtable>
-     </xsl:when>
-     <xsl:otherwise>
-      <m:mo color="Red">&#x03bb;</m:mo>
-      <xsl:apply-templates select="m:bvar/m:ci"/>
-      <m:mo>:</m:mo>
-      <xsl:apply-templates select="m:bvar/m:type"/>
-      <m:mo>.</m:mo>
-      <xsl:apply-templates select="*[position()=2]"/>
-     </xsl:otherwise>
-     </xsl:choose>
-    </m:mrow>
-</xsl:template>
-
-<!-- *********************************** -->
-<!-- BASE SET OF MATHML CONTENT ELEMENTS -->
-<!-- *********************************** -->
-
-<!-- Logic -->
-
-<xsl:template match = "m:apply[m:eq[1]]">
- <xsl:variable name="charlength">
-  <xsl:apply-templates select="*[1]" mode="charcount"/>
- </xsl:variable>
- <xsl:choose>
-  <xsl:when test="$charlength >= $framewidth">
-   <m:mtable align="baseline 1" equalrows="false" columnalign="left">
-    <xsl:if test="@helm:xref">
-     <xsl:attribute name="helm:xref">
-      <xsl:value-of select="@helm:xref"/>
-     </xsl:attribute>
-    </xsl:if>    
-    <m:mtr>
-     <m:mtd>
-      <m:mo stretchy="false">(</m:mo>
-      <xsl:apply-templates select="*[position()=2]"/>
-     </m:mtd>
-    </m:mtr>
-    <xsl:for-each select = "*[position()>2]">
-     <m:mtr>
-      <m:mtd>
-       <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-       <m:mo helm:xref="m:in/@helm:xref"> 
-        =
-       </m:mo>
-       <xsl:apply-templates select="."/>
-      </m:mtd>
-     </m:mtr>
-    </xsl:for-each>
-    <m:mtr>
-     <m:mtd>
-      <m:mo stretchy="false">)</m:mo>
-     </m:mtd>
-    </m:mtr>
-   </m:mtable>
-  </xsl:when>
-  <xsl:otherwise>
-   <xsl:apply-imports/>
-  </xsl:otherwise>
- </xsl:choose>
-</xsl:template>
-
-
-<xsl:template match = "m:apply[m:and[1]|m:or[1]
-          |m:geq[1]|m:leq[1]|m:gt[1]|m:lt[1]
-          |m:in[1]|m:intesect[1]|m:union[1]|m:subset[1]
-          |m:prsubset|m:setdiff[1]]">
- <xsl:variable name="symbol">
-  <xsl:choose>
-   <xsl:when test="m:and[1]">
-    <xsl:value-of select="'wedge'"/>
-   </xsl:when>
-   <xsl:when test="m:or[1]">
-    <xsl:value-of select="'vee'"/>
-   </xsl:when>
-   <xsl:when test="m:geq[1]">
-    <xsl:value-of select="'geq'"/>
-   </xsl:when>
-   <xsl:when test="m:leq[1]">
-    <xsl:value-of select="'leq'"/>
-   </xsl:when>
-   <xsl:when test="m:gt[1]">
-    <xsl:value-of select="'gt'"/>
-   </xsl:when>
-   <xsl:when test="m:lt[1]">
-    <xsl:value-of select="'lt'"/>
-   </xsl:when>
-   <xsl:when test="m:eq[1]">
-    <xsl:value-of select="'Equal'"/>
-   </xsl:when>
-   <xsl:when test="m:in[1]">
-    <xsl:value-of select="'Element'"/>
-   </xsl:when>
-   <xsl:when test="m:subset[1]">
-    <xsl:value-of select="'SubsetEqual'"/>
-   </xsl:when>
-   <xsl:when test="m:prsubset[1]">
-    <xsl:value-of select="'subset'"/>
-   </xsl:when>
-   <xsl:when test="m:intersect[1]">
-    <xsl:value-of select="'Intersection'"/>
-   </xsl:when>
-   <xsl:when test="m:union[1]">
-    <xsl:value-of select="'Union'"/>
-   </xsl:when>
-   <xsl:when test="m:setdiff[1]">
-    <xsl:value-of select="'Backslash'"/>
-   </xsl:when>
-  </xsl:choose>
- </xsl:variable>
- <xsl:variable name="charlength">
-  <xsl:apply-templates select="*[1]" mode="charcount"/>
- </xsl:variable>
- <xsl:choose>
-  <xsl:when test="$charlength >= $framewidth">
-   <m:mtable align="baseline 1" equalrows="false" columnalign="left">
-    <xsl:if test="@helm:xref">
-     <xsl:attribute name="helm:xref">
-      <xsl:value-of select="@helm:xref"/>
-     </xsl:attribute>
-    </xsl:if>    
-    <m:mtr>
-     <m:mtd>
-      <m:mo stretchy="false">(</m:mo>
-      <xsl:apply-templates select="*[position()=2]"/>
-     </m:mtd>
-    </m:mtr>
-    <xsl:for-each select = "*[position()>2]">
-     <m:mtr>
-      <m:mtd>
-       <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-       <m:mo helm:xref="{*[1]/@helm:xref}"> 
-        <m:mchar name="{$symbol}"/>
-       </m:mo>
-       <xsl:apply-templates select="."/>
-      </m:mtd>
-     </m:mtr>
-    </xsl:for-each>
-    <m:mtr>
-     <m:mtd>
-      <m:mo stretchy="false">)</m:mo>
-     </m:mtd>
-    </m:mtr>
-   </m:mtable>
-  </xsl:when>
-  <xsl:otherwise>
-   <xsl:apply-imports/>
-  </xsl:otherwise>
- </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:set">
- <xsl:choose>
-  <xsl:when test="count(child::*) = 0">
-   <m:mo> 
-    <m:mchar name="EmptySet"/>
-   </m:mo>
-  </xsl:when>
-  <xsl:otherwise>
-   <xsl:variable name="charlength">
-    <xsl:apply-templates select="*[1]" mode="charcount"/>
-   </xsl:variable>
-   <xsl:choose>
-    <xsl:when test="$charlength >= $framewidth">
-     <xsl:choose>
-      <xsl:when test="name(*[1]) = 'm:bvar'">
-       <m:mtable align="baseline 1" equalrows="false" columnalign="left">
-        <m:mtr>
-         <m:mtd>
-          <m:mo stretchy="false">{</m:mo>
-          <xsl:apply-templates select="*[position()=1]"/>
-         </m:mtd>
-        </m:mtr>
-        <m:mtr>
-         <m:mtd>
-          <m:mphantom><m:mtext>{</m:mtext></m:mphantom>
-          <m:mo stretchy="false">|</m:mo>
-          <xsl:apply-templates select="m:condition/*[1]"/>
-         </m:mtd>
-        </m:mtr>
-        <m:mtr>
-         <m:mtd>
-          <m:mo stretchy="false">}</m:mo>
-         </m:mtd>
-        </m:mtr>
-       </m:mtable>
-      </xsl:when>
-      <xsl:otherwise>
-       <m:mtable align="baseline 1" equalrows="false" columnalign="left">
-        <m:mtr>
-         <m:mtd>
-          <m:mo stretchy="false">{</m:mo>
-          <xsl:apply-templates select="*[position()=1]"/>
-          <xsl:if test="position() != last()">
-           <mo>,</mo>
-          </xsl:if>
-         </m:mtd>
-        </m:mtr>
-        <xsl:for-each select = "*[position()>2]">
-         <m:mtr>
-          <m:mtd>
-           <m:mphantom><m:mtext>{</m:mtext></m:mphantom>
-           <xsl:apply-templates select="."/>
-           <xsl:if test="position() != last()">
-            <mo>,</mo>
-           </xsl:if>
-          </m:mtd>
-         </m:mtr>
-        </xsl:for-each>
-        <m:mtr>
-         <m:mtd>
-          <m:mo stretchy="false">}</m:mo>
-         </m:mtd>
-        </m:mtr>
-       </m:mtable>
-      </xsl:otherwise>
-     </xsl:choose>
-    </xsl:when>
-    <xsl:otherwise>
-     <xsl:apply-imports/>
-    </xsl:otherwise>
-   </xsl:choose>
-  </xsl:otherwise>
- </xsl:choose>
-</xsl:template>      
-
-<xsl:template match = "m:apply[m:card[1]]">
- <m:mo stretchy="false">|</m:mo>
-  <xsl:apply-templates select="*[2]"/>
- <m:mo stretchy="false">|</m:mo>
-</xsl:template>
-
-<!-- *********************************** -->
-<!--          PROOF ELEMENTS             -->
-<!-- *********************************** -->
-
-
-
-<!--**********************-->
-<!--       COUNTING       -->
-<!--**********************-->
-
-<xsl:template match="m:cn|m:and|m:or|m:not|m:exists|m:eq|m:lt|m:leq|m:gt|m:geq
- |m:in|m:notin|m:intersect|m:union|m:subset|m:prsubset|m:card|m:setdiff
- |m:plus|m:minus|m:times" mode="charcount">
-<xsl:param name="incurrent_length" select="0"/> 
-    <xsl:choose>
-    <xsl:when test="$framewidth > ($incurrent_length + 3 + string-length())">
-     <xsl:variable name="siblength">
-      <xsl:apply-templates select="following-sibling::*[position()=1]" mode="charcount">
-       <xsl:with-param name="incurrent_length" select="$incurrent_length + string-length()"/>
-      </xsl:apply-templates>
-     </xsl:variable>
-     <xsl:choose>
-     <xsl:when test="string($siblength) = &quot;&quot;">
-      <xsl:value-of select="$incurrent_length + 3 + string-length()"/>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:value-of select="number($siblength)"/>
-     </xsl:otherwise>
-     </xsl:choose>
-    </xsl:when>
-    <xsl:otherwise>
-     <xsl:value-of select="$incurrent_length + 3 + string-length()"/>
-    </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<xsl:template match="m:ci|m:csymbol" mode="charcount">
-<xsl:param name="incurrent_length" select="0"/> 
-<xsl:param name="nosibling" select="0"/>
-    <xsl:choose>
-    <xsl:when test="$framewidth > ($incurrent_length + string-length()) and ($nosibling = 0)">
-     <xsl:variable name="siblength"><xsl:apply-templates select="following-sibling::*[position()=1]" mode="charcount"><xsl:with-param name="incurrent_length" select="$incurrent_length + string-length()"/></xsl:apply-templates></xsl:variable>
-     <xsl:choose>
-     <xsl:when test="string($siblength) = &quot;&quot;">
-      <xsl:value-of select="$incurrent_length + string-length()"/>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:value-of select="number($siblength)"/>
-     </xsl:otherwise>
-     </xsl:choose>
-    </xsl:when>
-    <xsl:otherwise>
-     <xsl:value-of select="$incurrent_length + string-length()"/>
-    </xsl:otherwise>
-    </xsl:choose>
-</xsl:template> 
-
-<xsl:template match="*" mode="charcount">
-<xsl:param name="incurrent_length" select="0"/>
-<xsl:param name="nosibling" select="0"/>
- <xsl:choose>
-  <xsl:when test="count(child::*) = 0">
-   <xsl:value-of select="$incurrent_length"/>
-  </xsl:when>
-  <xsl:otherwise>
-    <xsl:variable name="childlength"><xsl:apply-templates select="*[position()=1]" mode="charcount"><xsl:with-param name="incurrent_length" select="$incurrent_length"/><xsl:with-param name="nosibling" select="0"/></xsl:apply-templates></xsl:variable>
-    <xsl:choose>
-    <xsl:when test="$framewidth > number($childlength) and ($nosibling = 0)">
-     <xsl:variable name="siblength"><xsl:apply-templates select="following-sibling::*[position()=1]" mode="charcount"><xsl:with-param name="incurrent_length" select="$childlength"/></xsl:apply-templates></xsl:variable>
-     <xsl:choose>
-     <xsl:when test="string($siblength) = &quot;&quot;">
-      <xsl:value-of select="number($childlength)"/>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:value-of select="number($siblength)"/>
-     </xsl:otherwise>
-     </xsl:choose>>
-    </xsl:when>
-    <xsl:otherwise>
-     <xsl:value-of select="number($childlength)"/>
-    </xsl:otherwise>
-    </xsl:choose>
-  </xsl:otherwise>
- </xsl:choose>
-</xsl:template>
-
-</xsl:stylesheet> 
-
diff --git a/helm/style/mmlextension_andrea.xsl b/helm/style/mmlextension_andrea.xsl
deleted file mode 100644
index b4bbcdbdb..000000000
--- a/helm/style/mmlextension_andrea.xsl
+++ /dev/null
@@ -1,1052 +0,0 @@
-<?xml version="1.0"?>
-
-<!--***********************************************************************--> 
-<!-- Extension to the XSLT version 0.07 of MathML content to presentation: -->
-<!-- First draft: February 19 2000, Andrea Asperti, Irene Schena           -->
-<!-- Revised: March 3 2000, Irene Schena                                   -->
-<!-- Revised: March 15 2000, Claudio Sacerdoti Coen, Irene Schena          -->
-<!-- Revised: March 21 2000, Irene Schena                                  -->
-<!--***********************************************************************--> 
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML"
-                              xmlns:helm="http://www.cs.unibo.it/helm">
-
-<xsl:import href="mml2mmlv1_0.xsl"/>
-
-<!--***********************************************************************-->
-<!-- Parameter affecting line-breaking                                     -->
-<!--***********************************************************************-->
-
-<xsl:variable name="framewidth" select="15"/>
-
-<!--***********************************************************************-->
-<!-- Gli oggetti sono stampati come mtext all'interno di una marca toplevel-->
-<!-- math ma al di fuori di semantics. Ora vi sono tanti semantics quanti  -->
-<!-- sono i termini: la presentation per un termine e' generata come primo -->
-<!-- figlio di un semantics e l'originario content viene inserito nel      -->
-<!-- nel secondo figlio di semantics, annotation-xml                       -->
-<!--***********************************************************************-->
-
-<!--**********************-->
-<!--        OBJECTS       -->
-<!--**********************-->
-
-<xsl:template match="/">
- <xsl:processing-instruction name="cocoon-format">type="text/xhtml"</xsl:processing-instruction>
- <xsl:apply-templates select="*"/>
-</xsl:template>
-
-<!-- DEFINITION -->
-
-<xsl:template match="Definition">
-    <m:math>
-     <m:mtable align="baseline 1" equalrows="false" columnalign="left" helm:xref="{@helm:xref}">
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>DEFINITION <xsl:value-of select="@name"/>(<xsl:if test="string(./Params) != &quot;&quot;"><xsl:value-of select="Params"/></xsl:if>) OF TYPE</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-         <xsl:apply-templates select="type/*[1]"/>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>AS</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-         <xsl:apply-templates select="body/*[1]"/>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-     </m:mtable>
-    </m:math>
-</xsl:template>
-
-<!-- AXIOM -->
-
-<xsl:template match="Axiom">
-    <m:math>
-     <m:mtable align="baseline 1" equalrows="false" columnalign="left" helm:xref="{@helm:xref}">
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>AXIOM <xsl:value-of select="@name"/>(<xsl:if test="string(./Params) != &quot;&quot;"><xsl:value-of select="Params"/></xsl:if>) OF TYPE</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-         <xsl:apply-templates select="type/*[1]"/>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-     </m:mtable>
-    </m:math>
-</xsl:template>
-
-<!-- UNFINISHED PROOF -->
-
-<xsl:template match="CurrentProof">
-    <m:math>
-     <m:mtable align="baseline 1" equalrows="false" columnalign="left" helm:xref="{@helm:xref}">
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>UNFINISHED PROOF <xsl:value-of select="@name"/>(<xsl:if test="string(./Params) != &quot;&quot;"><xsl:value-of select="Params"/></xsl:if>)</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>THESIS:</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-         <xsl:apply-templates select="type/*[1]"/>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>CONJECTURES:</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <xsl:for-each select="Conjecture">
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-         <m:mtext><xsl:value-of select="./@no"/>:</m:mtext>
-         <xsl:apply-templates select="./*[1]"/>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      </xsl:for-each>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>CORRESPONDING PROOF:</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-         <xsl:apply-templates select="body/*[1]"/>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-     </m:mtable>
-    </m:math>
-</xsl:template>
-
-<!-- MUTUAL INDUCTIVE DEFINITION -->
-
-<xsl:template match="InductiveDefinition">
-    <m:math>
-     <m:mtable align="baseline 1" equalrows="false" columnalign="left" helm:xref="{@helm:xref}">
-     <xsl:for-each select="InductiveType">
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <xsl:choose>
-         <xsl:when test="position() = 1">
-          <xsl:choose>
-          <xsl:when test="string(./@inductive) = &quot;true&quot;">
-           <m:mtext>INDUCTIVE DEFINITION</m:mtext>
-          </xsl:when>
-          <xsl:otherwise>
-           <m:mtext>COINDUCTIVE DEFINITION</m:mtext>
-          </xsl:otherwise>
-          </xsl:choose>  
-         </xsl:when>
-         <xsl:otherwise>
-          <m:mtext>AND</m:mtext>
-         </xsl:otherwise>
-         </xsl:choose>
-         <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
-         <m:mtext><xsl:value-of select="./@name"/>(<xsl:if test="string(../Params) != &quot;&quot;"><xsl:value-of select="../Params"/></xsl:if>)</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow> 
-         <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-         <m:mtext>[</m:mtext>
-         <xsl:choose>
-         <xsl:when test="string(../Param) != &quot;&quot;">         
-          <m:mtable align="baseline 1" equalrows="false" columnalign="left">
-           <xsl:for-each select="../Param">
-            <m:mtr>
-             <m:mtd>
-              <m:mrow>   
-               <m:mi><xsl:value-of select="./@name"/></m:mi>
-               <m:mo>:</m:mo>
-               <xsl:apply-templates select="*"/>
-              </m:mrow>
-             </m:mtd>
-            </m:mtr>
-           </xsl:for-each>
-            <m:mtr>
-             <m:mtd>
-              <m:mrow>
-               <m:mtext>]</m:mtext>
-              </m:mrow>
-             </m:mtd>
-            </m:mtr>
-          </m:mtable>
-         </xsl:when>
-         <xsl:otherwise>
-          <m:mtext>]</m:mtext>
-         </xsl:otherwise>
-         </xsl:choose>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>OF ARITY</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-         <xsl:apply-templates select="./arity/*[1]"/>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>BUILT FROM</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <xsl:for-each select="./Constructor">
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <xsl:choose>
-         <xsl:when test="position() = 1">
-          <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-         </xsl:when>
-         <xsl:otherwise>
-          <m:mtext>|</m:mtext>
-          <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
-         </xsl:otherwise>
-         </xsl:choose>
-         <m:mtext><xsl:value-of select="./@name"/> OF</m:mtext>
-         <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
-         <xsl:apply-templates select="./*[1]"/>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      </xsl:for-each>
-     </xsl:for-each>
-     </m:mtable>
-    </m:math>
-</xsl:template>
-
-<!-- VARIABLE -->
-
-<xsl:template match="Variable">
-    <m:math>
-     <m:mtable align="baseline 1" equalrows="false" columnalign="left" helm:xref="{@helm:xref}">
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>VARIABLE <xsl:value-of select="@name"/> OF TYPE</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-         <xsl:apply-templates select="type/*[1]"/>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-     </m:mtable>
-    </m:math>
-</xsl:template>
-
-<!--**********************-->
-<!--        TERMS         -->
-<!--**********************-->
-
-<xsl:template match="m:bvar">
- <xsl:choose>
-  <xsl:when test="m:type">
-   <xsl:variable name="charlength">
-    <xsl:apply-templates select="m:ci" mode="charcount"/>
-   </xsl:variable>
-   <xsl:choose>
-    <xsl:when test="$charlength >= $framewidth">
-     <m:mtable align="baseline 1" equalrows="false" columnalign="left">
-      <m:mtr>
-       <m:mtd>
-        <xsl:apply-templates select="m:ci"/>
-        <m:mo>:</m:mo>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-         <xsl:apply-templates select="m:type"/>
-       </m:mtd>
-      </m:mtr>
-     </m:mtable>
-    </xsl:when>
-    <xsl:otherwise>
-     <xsl:apply-templates select="m:ci"/>
-     <m:mo>:</m:mo>
-     <xsl:apply-templates select="m:type"/>
-    </xsl:otherwise>
-   </xsl:choose>
-  </xsl:when>
-  <xsl:otherwise>
-   <xsl:apply-templates select="m:ci"/>
-  </xsl:otherwise>
- </xsl:choose>
-</xsl:template>
-
-
-<!-- CSYMBOL -->
-
-<xsl:template match="m:apply[m:csymbol]">
-    <xsl:variable name="name"><xsl:value-of select="m:csymbol"/></xsl:variable>
-    <xsl:variable name="charlength"><xsl:apply-templates select="m:csymbol" mode="charcount"/></xsl:variable>
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-      </m:mtr>
-     </m:mtable>
-    </xsl:when>
-    <xsl:otherwise>
-     <m:mtable align="baseline 1" equalrows="false" columnalign="left">
-      <m:mtr>
-       <m:mtd>
-        <m:mo stretchy="false">{</m:mo>
-        <xsl:apply-templates select="*[1]"/>
-        <xsl:if test="count(child::*) != 1">
-         <m:mo>,</m:mo>
-        </xsl:if>
-       </m:mtd>
-      </m:mtr>
-      <xsl:for-each select = "*[position()>1]">
-       <m:mtr>
-        <m:mtd>
-         <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
-         <xsl:apply-templates select="."/>
-         <xsl:if test="position() != last()">
-          <m:mo>,</m:mo>
-         </xsl:if>
-        </m:mtd>
-       </m:mtr>
-      </xsl:for-each>
-      <m:mtr>
-       <m:mtd>
-        <m:mo stretchy="false">}</m:mo>
-       </m:mtd>
-      </m:mtr>
-     </m:mtable>
-    </xsl:otherwise>
-   </xsl:choose>
-  </xsl:when>
-  <xsl:otherwise>
-   <xsl:apply-imports/>
-  </xsl:otherwise>
- </xsl:choose>
-</xsl:template>
-
-<!--**********************-->
-<!--       COUNTING       -->
-<!--**********************-->
-
-<xsl:template match="m:and|m:or|m:not|m:exists|m:eq|m:lt|m:leq|m:gt|m:geq
- |m:in|m:notin|m:intersect|m:union|m:subset|m:prsubset|m:card|m:setdiff" mode="charcount">
-<xsl:param name="incurrent_length" select="0"/> 
-    <xsl:choose>
-    <xsl:when test="$framewidth > ($incurrent_length + 3 + string-length())">
-     <xsl:variable name="siblength">
-      <xsl:apply-templates select="following-sibling::*[position()=1]" mode="charcount">
-       <xsl:with-param name="incurrent_length" select="$incurrent_length + string-length()"/>
-      </xsl:apply-templates>
-     </xsl:variable>
-     <xsl:choose>
-     <xsl:when test="string($siblength) = &quot;&quot;">
-      <xsl:value-of select="$incurrent_length + 3 + string-length()"/>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:value-of select="number($siblength)"/>
-     </xsl:otherwise>
-     </xsl:choose>
-    </xsl:when>
-    <xsl:otherwise>
-     <xsl:value-of select="$incurrent_length + 3 + string-length()"/>
-    </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<xsl:template match="m:ci|m:csymbol" mode="charcount">
-<xsl:param name="incurrent_length" select="0"/> 
-<xsl:param name="nosibling" select="0"/>
-    <xsl:choose>
-    <xsl:when test="$framewidth > ($incurrent_length + string-length()) and ($nosibling = 0)">
-     <xsl:variable name="siblength"><xsl:apply-templates select="following-sibling::*[position()=1]" mode="charcount"><xsl:with-param name="incurrent_length" select="$incurrent_length + string-length()"/></xsl:apply-templates></xsl:variable>
-     <xsl:choose>
-     <xsl:when test="string($siblength) = &quot;&quot;">
-      <xsl:value-of select="$incurrent_length + string-length()"/>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:value-of select="number($siblength)"/>
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-     <xsl:value-of select="$incurrent_length + string-length()"/>
-    </xsl:otherwise>
-    </xsl:choose>
-</xsl:template> 
-
-<xsl:template match="*" mode="charcount">
-<xsl:param name="incurrent_length" select="0"/>
-<xsl:param name="nosibling" select="0"/>
-    <xsl:variable name="childlength"><xsl:apply-templates select="*[position()=1]" mode="charcount"><xsl:with-param name="incurrent_length" select="$incurrent_length"/><xsl:with-param name="nosibling" select="0"/></xsl:apply-templates></xsl:variable>
-    <xsl:choose>
-    <xsl:when test="$framewidth > number($childlength) and ($nosibling = 0)">
-     <xsl:variable name="siblength"><xsl:apply-templates select="following-sibling::*[position()=1]" mode="charcount"><xsl:with-param name="incurrent_length" select="$childlength"/></xsl:apply-templates></xsl:variable>
-     <xsl:choose>
-     <xsl:when test="string($siblength) = &quot;&quot;">
-      <xsl:value-of select="number($childlength)"/>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:value-of select="number($siblength)"/>
-     </xsl:otherwise>
-     </xsl:choose>>
-    </xsl:when>
-    <xsl:otherwise>
-     <xsl:value-of select="number($childlength)"/>
-    </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-</xsl:stylesheet> 
diff --git a/helm/style/mmlextension_irene.xsl b/helm/style/mmlextension_irene.xsl
deleted file mode 100644
index 90852b79e..000000000
--- a/helm/style/mmlextension_irene.xsl
+++ /dev/null
@@ -1,868 +0,0 @@
-<?xml version="1.0"?>
-
-<!--***********************************************************************--> 
-<!-- Extension to the XSLT version 0.07 of MathML content to presentation: -->
-<!-- First draft: February 19 2000, Andrea Asperti, Irene Schena           -->
-<!-- Revised: March 3 2000, Irene Schena                                   -->
-<!-- Revised: March 15 2000, Claudio Sacerdoti Coen, Irene Schena          -->
-<!-- Revised: March 21 2000, Irene Schena                                  -->
-<!--***********************************************************************--> 
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML"
-                              xmlns:helm="http://www.cs.unibo.it/helm">
-
-<xsl:import href="mml2mmlv1_0.xsl"/>
-
-<!--***********************************************************************-->
-<!-- Parameter affecting line-breaking                                     -->
-<!--***********************************************************************-->
-
-<xsl:variable name="framewidth" select="30"/>
-
-<!--***********************************************************************-->
-<!-- Gli oggetti sono stampati come mtext all'interno di una marca toplevel-->
-<!-- math ma al di fuori di semantics. Ora vi sono tanti semantics quanti  -->
-<!-- sono i termini: la presentation per un termine e' generata come primo -->
-<!-- figlio di un semantics e l'originario content viene inserito nel      -->
-<!-- nel secondo figlio di semantics, annotation-xml                       -->
-<!--***********************************************************************-->
-
-<!--**********************-->
-<!--        OBJECTS       -->
-<!--**********************-->
-
-<!-- DEFINITION -->
-
-<xsl:template match="Definition">
-    <m:math>
-     <m:mtable align="baseline 1" equalrows="false" columnalign="left" helm:xref="{@helm:xref}">
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>DEFINITION <xsl:value-of select="@name"/>(<xsl:if test="string(./Params) != &quot;&quot;"><xsl:value-of select="Params"/></xsl:if>) OF TYPE</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-         <xsl:apply-templates select="type/*[1]"/>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>AS</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-         <xsl:apply-templates select="body/*[1]"/>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-     </m:mtable>
-    </m:math>
-</xsl:template>
-
-<!-- AXIOM -->
-
-<xsl:template match="Axiom">
-    <m:math>
-     <m:mtable align="baseline 1" equalrows="false" columnalign="left" helm:xref="{@helm:xref}">
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>AXIOM <xsl:value-of select="@name"/>(<xsl:if test="string(./Params) != &quot;&quot;"><xsl:value-of select="Params"/></xsl:if>) OF TYPE</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-         <xsl:apply-templates select="type/*[1]"/>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-     </m:mtable>
-    </m:math>
-</xsl:template>
-
-<!-- UNFINISHED PROOF -->
-
-<xsl:template match="CurrentProof">
-    <m:math>
-     <m:mtable align="baseline 1" equalrows="false" columnalign="left" helm:xref="{@helm:xref}">
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>UNFINISHED PROOF <xsl:value-of select="@name"/>(<xsl:if test="string(./Params) != &quot;&quot;"><xsl:value-of select="Params"/></xsl:if>)</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>THESIS:</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
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-         <xsl:apply-templates select="type/*[1]"/>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>CONJECTURES:</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <xsl:for-each select="Conjecture">
-      <m:mtr>
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-         <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-         <m:mtext><xsl:value-of select="./@no"/>:</m:mtext>
-         <xsl:apply-templates select="./*[1]"/>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      </xsl:for-each>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>CORRESPONDING PROOF:</m:mtext>
-        </m:mrow>
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-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-     </m:mtable>
-    </m:math>
-</xsl:template>
-
-<!-- MUTUAL INDUCTIVE DEFINITION -->
-
-<xsl:template match="InductiveDefinition">
-    <m:math>
-     <m:mtable align="baseline 1" equalrows="false" columnalign="left" helm:xref="{@helm:xref}">
-     <xsl:for-each select="InductiveType">
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-        <m:mrow>
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-          <xsl:choose>
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-           <m:mtext>INDUCTIVE DEFINITION</m:mtext>
-          </xsl:when>
-          <xsl:otherwise>
-           <m:mtext>COINDUCTIVE DEFINITION</m:mtext>
-          </xsl:otherwise>
-          </xsl:choose>  
-         </xsl:when>
-         <xsl:otherwise>
-          <m:mtext>AND</m:mtext>
-         </xsl:otherwise>
-         </xsl:choose>
-         <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
-         <m:mtext><xsl:value-of select="./@name"/>(<xsl:if test="string(../Params) != &quot;&quot;"><xsl:value-of select="../Params"/></xsl:if>)</m:mtext>
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-      <m:mtr>
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-         <xsl:choose>
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-           <xsl:for-each select="../Param">
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-               <m:mi><xsl:value-of select="./@name"/></m:mi>
-               <m:mo>:</m:mo>
-               <xsl:apply-templates select="*"/>
-              </m:mrow>
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-         </xsl:when>
-         <xsl:otherwise>
-          <m:mtext>]</m:mtext>
-         </xsl:otherwise>
-         </xsl:choose>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>OF ARITY</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-         <xsl:apply-templates select="./arity/*[1]"/>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>BUILT FROM</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <xsl:for-each select="./Constructor">
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <xsl:choose>
-         <xsl:when test="position() = 1">
-          <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-         </xsl:when>
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-          <m:mtext>|</m:mtext>
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-         </xsl:otherwise>
-         </xsl:choose>
-         <m:mtext><xsl:value-of select="./@name"/> OF</m:mtext>
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-         <xsl:apply-templates select="./*[1]"/>
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-      </xsl:for-each>
-     </xsl:for-each>
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-    </m:math>
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-
-<!-- VARIABLE -->
-
-<xsl:template match="Variable">
-    <m:math>
-     <m:mtable align="baseline 1" equalrows="false" columnalign="left" helm:xref="{@helm:xref}">
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>VARIABLE <xsl:value-of select="@name"/> OF TYPE</m:mtext>
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-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
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-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-     </m:mtable>
-    </m:math>
-</xsl:template>
-
-<!--**********************-->
-<!--        TERMS         -->
-<!--**********************-->
-
-<!-- CSYMBOL -->
-
-<xsl:template match="m:apply[m:csymbol]">
-    <xsl:variable name="name"><xsl:value-of select="m:csymbol"/></xsl:variable>
-    <xsl:variable name="charlength"><xsl:apply-templates select="m:csymbol" mode="charcount"/></xsl:variable>
-    <m:mrow helm:xref="{@helm:xref}">
-     <xsl:choose>
-      <xsl:when test="$name='prod'">
-       <xsl:choose>
-       <xsl:when test="$charlength >= $framewidth">
-        <xsl:variable name="charlength"><xsl:apply-templates select="m:bvar/m:type" mode="charcount"><xsl:with-param name="nosibling" select="1"/></xsl:apply-templates></xsl:variable>
-        <m:mtable align="baseline 1" equalrows="false" columnalign="left">
-         <m:mtr>
-          <m:mtd>
-           <m:mrow>
-            <m:mo color="Blue">&#x03a0;</m:mo>
-            <xsl:apply-templates select="m:bvar/m:ci"/>
-            <m:mo>:</m:mo>
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-             <xsl:apply-templates select="m:bvar/m:type"/>
-            </xsl:if>
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-        <xsl:apply-templates select="*[position()=3]"/>
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-      </xsl:when>
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-        <xsl:apply-templates select="*[position()=3]"/>
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-      </xsl:when>
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-       <xsl:choose>
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-                 <xsl:apply-templates select="m:type"/>
-                </xsl:if>
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-             </m:mtr> 
-             <xsl:if test="$charlength >= $framewidth">
-             <m:mtr>
-              <m:mtd>
-               <m:mrow>
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-                <xsl:apply-templates select="m:type"/>
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-              </m:mtd>
-             </m:mtr>
-             </xsl:if>
-             <m:mtr>
-              <m:mtd>
-               <m:mrow>
-                <m:mo>:=</m:mo>
-                <xsl:apply-templates select="following-sibling::*[position()=1]"/>
-               </m:mrow>
-              </m:mtd>
-             </m:mtr> 
-            </xsl:for-each>
-            </m:mtable>
-           </m:mrow>
-          </m:mtd>
-         </m:mtr>
-         <m:mtr>
-          <m:mtd>
-           <m:mrow>
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-         </m:mtr>
-        </m:mtable>
-       </xsl:when>
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-        <m:mo>FIX</m:mo>
-        <m:mi><xsl:value-of select="m:ci"/></m:mi>
-        <m:mo stretchy="false">{</m:mo>
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-        <xsl:for-each select="m:bvar"> 
-         <m:mtr>
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-           <m:mrow>
-            <m:mi><xsl:value-of select="m:ci"/></m:mi>
-            <m:mo>:</m:mo>
-            <xsl:apply-templates select="m:type"/>
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-            <xsl:apply-templates select="following-sibling::*[position() = 1]"/>
-            <xsl:if test="position()=last()">
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-            </xsl:if>
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-          </m:mtd>
-         </m:mtr>
-         </xsl:for-each>
-        </m:mtable>
-       </xsl:otherwise>
-       </xsl:choose>
-      </xsl:when>
-      <xsl:when test="$name='cofix'">
-       <xsl:choose>
-       <xsl:when test="$charlength >= $framewidth">
-        <m:mtable align="baseline 1" equalrows="false" columnalign="left">
-         <m:mtr>
-          <m:mtd>
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-            <m:mo>COFIX</m:mo>
-            <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
-            <m:mi><xsl:value-of select="m:ci"/></m:mi>
-            <m:mo stretchy="false">{</m:mo>
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-         <m:mtr>
-          <m:mtd>
-           <m:mrow>
-            <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-            <m:mtable align="baseline 1" equalrows="false" columnalign="left">
-            <xsl:for-each select="m:bvar">
-             <xsl:variable name="charlength"><xsl:apply-templates select="m:type" mode="charcount"><xsl:with-param name="nosibling" select="1"/></xsl:apply-templates></xsl:variable> 
-             <m:mtr>
-              <m:mtd>
-               <m:mrow>
-                <m:mi><xsl:value-of select="m:ci"/></m:mi>
-                <m:mo>:</m:mo>
-                <xsl:if test="$framewidth > $charlength">
-                 <xsl:apply-templates select="m:type"/>
-                </xsl:if>
-               </m:mrow>
-              </m:mtd>
-             </m:mtr> 
-             <xsl:if test="$charlength >= $framewidth">
-             <m:mtr>
-              <m:mtd>
-               <m:mrow>
-                <m:mphantom><m:mtext>:=</m:mtext></m:mphantom>
-                <xsl:apply-templates select="m:type"/>
-               </m:mrow>
-              </m:mtd>
-             </m:mtr>
-             </xsl:if>
-             <m:mtr>
-              <m:mtd>
-               <m:mrow>
-                <m:mo>:=</m:mo>
-                <xsl:apply-templates select="following-sibling::*[position() = 1]"/>
-               </m:mrow>
-              </m:mtd>
-             </m:mtr>
-            </xsl:for-each>
-            </m:mtable>
-           </m:mrow>
-          </m:mtd>
-         </m:mtr>
-         <m:mtr>
-          <m:mtd>
-           <m:mrow>
-            <m:mo stretchy="false">}</m:mo>
-           </m:mrow>
-          </m:mtd>
-         </m:mtr>
-        </m:mtable>
-       </xsl:when>
-       <xsl:otherwise>
-        <m:mo>COFIX</m:mo>
-        <m:mi><xsl:value-of select="m:ci"/></m:mi>
-        <m:mo stretchy="false">{</m:mo>
-        <m:mtable align="baseline 1" equalrows="false" columnalign="left">  
-        <xsl:for-each select="m:bvar"> 
-         <m:mtr>
-          <m:mtd>
-           <m:mrow>
-            <m:mi><xsl:value-of select="m:ci"/></m:mi>
-            <m:mo>:</m:mo>
-            <xsl:apply-templates select="m:type"/>
-            <m:mo>:=</m:mo>
-            <xsl:apply-templates select="following-sibling::*[position() = 1]"/>
-            <xsl:if test="position()=last()">
-             <m:mo stretchy="false">}</m:mo>
-            </xsl:if>
-           </m:mrow>
-          </m:mtd>
-         </m:mtr>
-         </xsl:for-each>
-        </m:mtable>
-       </xsl:otherwise>
-       </xsl:choose>
-      </xsl:when>
-      </xsl:choose>
-     </m:mrow>
-</xsl:template>
-
-<!-- LAMBDA -->
-
-<xsl:template match="m:lambda">
-    <xsl:variable name="charlength"><xsl:apply-templates select="*[position()=1]" mode="charcount"/></xsl:variable>
-    <m:mrow helm:xref="{@helm:xref}">
-     <xsl:choose>
-     <xsl:when test="$charlength >= $framewidth">
-      <xsl:variable name="charlength"><xsl:apply-templates select="m:bvar/m:type" mode="charcount"><xsl:with-param name="nosibling" select="1"/></xsl:apply-templates></xsl:variable>
-      <m:mtable align="baseline 1" equalrows="false" columnalign="left">
-       <m:mtr>
-        <m:mtd>
-         <m:mrow>
-          <m:mo color="Red">&#x03bb;</m:mo>
-<!--<xsl:text disable-output-escaping="yes">&amp;lambda;</xsl:text>-->
-          <xsl:apply-templates select="m:bvar/m:ci"/>
-          <m:mo>:</m:mo>
-          <xsl:if test="$framewidth > $charlength">
-           <xsl:apply-templates select="m:bvar/m:type"/>
-          </xsl:if>
-         </m:mrow>
-        </m:mtd>
-       </m:mtr>
-       <xsl:if test="$charlength >= $framewidth">
-       <m:mtr>
-        <m:mtd>
-         <m:mrow>
-          <m:mphantom><m:mtext>.</m:mtext></m:mphantom>
-          <xsl:apply-templates select="m:bvar/m:type"/>
-         </m:mrow>
-        </m:mtd>
-       </m:mtr>
-       </xsl:if>
-       <m:mtr>
-        <m:mtd>
-         <m:mrow>
-          <m:mo>.</m:mo>
-          <xsl:apply-templates select="*[position()=2]"/>
-         </m:mrow>
-        </m:mtd>
-       </m:mtr>
-      </m:mtable>
-     </xsl:when>
-     <xsl:otherwise>
-      <m:mo color="Red">&#x03bb;</m:mo>
-      <xsl:apply-templates select="m:bvar/m:ci"/>
-      <m:mo>:</m:mo>
-      <xsl:apply-templates select="m:bvar/m:type"/>
-      <m:mo>.</m:mo>
-      <xsl:apply-templates select="*[position()=2]"/>
-     </xsl:otherwise>
-     </xsl:choose>
-    </m:mrow>
-</xsl:template>
-
-<!--**********************-->
-<!--       COUNTING       -->
-<!--**********************-->
-
-<xsl:template match="m:ci|m:csymbol" mode="charcount">
-<xsl:param name="incurrent_length" select="0"/> 
-<xsl:param name="nosibling" select="0"/>
-    <xsl:choose>
-    <xsl:when test="$framewidth > ($incurrent_length + string-length()) and ($nosibling = 0)">
-     <xsl:variable name="siblength"><xsl:apply-templates select="following-sibling::*[position()=1]" mode="charcount"><xsl:with-param name="incurrent_length" select="$incurrent_length + string-length()"/></xsl:apply-templates></xsl:variable>
-     <xsl:choose>
-     <xsl:when test="string($siblength) = &quot;&quot;">
-      <xsl:value-of select="$incurrent_length + string-length()"/>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:value-of select="number($siblength)"/>
-     </xsl:otherwise>
-     </xsl:choose>
-    </xsl:when>
-    <xsl:otherwise>
-     <xsl:value-of select="$incurrent_length + string-length()"/>
-    </xsl:otherwise>
-    </xsl:choose>
-</xsl:template> 
-
-<xsl:template match="*" mode="charcount">
-<xsl:param name="incurrent_length" select="0"/>
-<xsl:param name="nosibling" select="0"/>
-    <xsl:variable name="childlength"><xsl:apply-templates select="*[position()=1]" mode="charcount"><xsl:with-param name="incurrent_length" select="$incurrent_length"/><xsl:with-param name="nosibling" select="0"/></xsl:apply-templates></xsl:variable>
-    <xsl:choose>
-    <xsl:when test="$framewidth > number($childlength) and ($nosibling = 0)">
-     <xsl:variable name="siblength"><xsl:apply-templates select="following-sibling::*[position()=1]" mode="charcount"><xsl:with-param name="incurrent_length" select="$childlength"/></xsl:apply-templates></xsl:variable>
-     <xsl:choose>
-     <xsl:when test="string($siblength) = &quot;&quot;">
-      <xsl:value-of select="number($childlength)"/>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:value-of select="number($siblength)"/>
-     </xsl:otherwise>
-     </xsl:choose>>
-    </xsl:when>
-    <xsl:otherwise>
-     <xsl:value-of select="number($childlength)"/>
-    </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-</xsl:stylesheet> 
diff --git a/helm/style/objcontent.xsl b/helm/style/objcontent.xsl
deleted file mode 100644
index 6ad0a4922..000000000
--- a/helm/style/objcontent.xsl
+++ /dev/null
@@ -1,232 +0,0 @@
-<?xml version="1.0"?>
-
-<!--******************************************************************--> 
-<!-- XSLT version 0.1 of CIC objects to objects and MathML content:   -->
-<!-- First draft: March 21 2000, Irene Schena                         -->
-<!--******************************************************************-->
-
-<!--******************************************************************-->
-<!-- MANCA: gestione annotation e linking                             -->
-<!--******************************************************************-->
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML"
-                              xmlns:helm="http://www.cs.unibo.it/helm">
-
-<xsl:import href="content.xsl"/>
-
-<!-- ROOT -->
-
-<xsl:template match="cicxml">
-    <xsl:variable name="url"><xsl:value-of select="@baseurl"/></xsl:variable>
-    <xsl:variable name="stylesheet"><xsl:value-of select="@stylesheet"/></xsl:variable>
-    <xsl:processing-instruction name="cocoon-format">type="text/xml"</xsl:processing-instruction>
-    <xsl:processing-instruction name="xml-stylesheet">href="<xsl:value-of select='concat($url,$stylesheet)'/>" type="text/xsl"</xsl:processing-instruction>
-    <xsl:processing-instruction name="cocoon-process">type="xslt"</xsl:processing-instruction>
-    <xsl:apply-templates select="*[1]"/>
-</xsl:template>
-
-<!-- CIC OBJECTS -->
-
-<xsl:template match="Definition" mode="noannot">
-    <Definition name="{@name}" helm:xref="{@id}">  
-     <xsl:if test="string(@params) != &quot;&quot;">
-      <Params>
-       <xsl:value-of select="@params"/>
-      </Params>
-     </xsl:if>
-<!--     <xsl:choose>
-      <xsl:when test="$showproof=0">
-       <body>
-        <m:mi>Here</m:mi>
-       </body>
-      </xsl:when>
-      <xsl:otherwise>
-       <body>
-        <xsl:apply-templates select="body"/>
-       </body>
-      </xsl:otherwise>
-     </xsl:choose> -->
-     <body>
-      <xsl:apply-templates select="body"/>
-     </body>
-     <type>
-       <xsl:apply-templates select="type"/>
-     </type>
-    </Definition> 
-</xsl:template>
-
-<xsl:template match="Axiom" mode="noannot"> 
-    <Axiom name="{@name}" helm:xref="{@id}">
-     <xsl:if test="string(@params) != &quot;&quot;">
-      <Params>
-       <xsl:value-of select="@params"/>
-      </Params>
-     </xsl:if>
-     <type>
-       <xsl:apply-templates select="type"/>
-     </type>
-    </Axiom> 
-</xsl:template>
-
-<xsl:template match="CurrentProof" mode="noannot">
-    <CurrentProof name="{@name}" helm:xref="{@id}">
-     <xsl:for-each select="Conjecture">
-      <Conjecture no="./{@no}">
-        <xsl:apply-templates select="."/>
-      </Conjecture>
-     </xsl:for-each>
-     <body>
-       <xsl:apply-templates select="body"/>
-     </body>
-     <type>
-       <xsl:apply-templates select="type"/>
-     </type>
-    </CurrentProof> 
-</xsl:template>
-
-<xsl:template match="InductiveDefinition" mode="noannot">
-    <InductiveDefinition helm:xref="{@id}">
-     <xsl:if test="string(@params) != &quot;&quot;">
-      <Params>
-       <xsl:value-of select="@params"/>
-      </Params>
-     </xsl:if> 
-     <xsl:if test="string(@noParams) != 0"> 
-      <xsl:apply-templates select="InductiveType/arity/*[1]" mode="abstparams">
-       <xsl:with-param name="noparams" select="@noParams"/>
-      </xsl:apply-templates>
-     </xsl:if>
-     <xsl:for-each select="InductiveType">
-      <InductiveType name="{./@name}" inductive="{./@inductive}">
-       <arity>
-         <xsl:apply-templates select="./arity/*[1]" mode="abstparams">
-          <xsl:with-param name="noparams" select="../@noParams"/>
-          <xsl:with-param name="target" select="1"/>
-         </xsl:apply-templates>
-       </arity>
-       <xsl:for-each select="./Constructor">
-        <Constructor name="{./@name}">
-          <xsl:apply-templates select="./*[1]" mode="abstparams">
-           <xsl:with-param name="noparams" select="../../@noParams"/>
-           <xsl:with-param name="target" select="1"/>
-          </xsl:apply-templates>
-        </Constructor>
-       </xsl:for-each>
-      </InductiveType>
-     </xsl:for-each> 
-    </InductiveDefinition>       
-</xsl:template>
-
-<xsl:template match="Variable" mode="noannot"> 
-    <Variable name="{@name}" helm:xref="{@id}">
-     <type>
-       <xsl:apply-templates select="type"/>
-     </type>
-    </Variable> 
-</xsl:template>
-
-<!--*******************************************-->
-<!--    ABSTRACTING PARAMETERS AND COUNTING    -->
-<!--*******************************************-->
-<!-- Si dimentica i CAST dei termini che astrae. Nel caso dell'astrazione -->
-<!-- dei lambda dei pattern del CASE, qualora i lambda non si trovino     -->
-<!-- nella forma weak-head, astrae solo i lambda che trova e restituisce  -->
-<!-- un corpo depurato da tutti i primi cast che precedono il termine     -->
-<!-- restituito.                                                          -->
-
-<xsl:template match="*" mode="abstparams">
-<xsl:param name="noparams" select="0"/>
-<xsl:param name="target" select="0"/>
-<xsl:param name="binder">PROD</xsl:param>
-    <xsl:choose>
-    <xsl:when test="($noparams != 0) and ((name(.)=string($binder)) or (name(.)=&quot;CAST&quot;))">
-     <xsl:choose>
-     <xsl:when test="name(.) = string($binder)">
-      <xsl:if test="$target = 0">
-       <xsl:choose>
-       <xsl:when test="string($binder) = &quot;LAMBDA&quot;">
-        <m:ci>
-         <xsl:value-of select="target/@binder"/>
-        </m:ci>
-       </xsl:when>
-       <xsl:otherwise> 
-        <Param name="{target/@binder}">
-         <xsl:apply-templates select="source" mode="noannot"/>
-        </Param>
-       </xsl:otherwise>
-       </xsl:choose>
-      </xsl:if>
-      <xsl:apply-templates select="target/*[1]" mode="abstparams">
-       <xsl:with-param name="noparams" select="$noparams - 1"/>
-       <xsl:with-param name="target" select="$target"/>
-       <xsl:with-param name="binder" select="$binder"/>
-      </xsl:apply-templates>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-templates select="term/*[1]" mode="abstparams">
-       <xsl:with-param name="noparams" select="$noparams"/>
-       <xsl:with-param name="target" select="$target"/>
-       <xsl:with-param name="binder" select="$binder"/>
-      </xsl:apply-templates>
-     </xsl:otherwise>
-     </xsl:choose>
-    </xsl:when>
-    <xsl:otherwise> 
-     <xsl:choose>
-     <xsl:when test="($target = 1) and ($noparams != 0)">
-      <m:apply>
-      <m:csymbol>app</m:csymbol>
-      <xsl:apply-templates select="." mode="noannot"/>
-      <xsl:call-template name="printparam"><xsl:with-param name="noleft" select="$noparams"/></xsl:call-template>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:choose>
-      <xsl:when test="$noparams != 0">
-      <xsl:call-template name="printparam"><xsl:with-param name="noleft" select="$noparams"/></xsl:call-template>
-      </xsl:when>
-      <xsl:otherwise>
-       <xsl:if test="$target = 1">
-        <xsl:apply-templates select="." mode="noannot"/>
-       </xsl:if>
-      </xsl:otherwise>
-      </xsl:choose>
-     </xsl:otherwise>
-     </xsl:choose>
-    </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<xsl:template name="printparam">
-<xsl:param name="noleft" select="0"/>
-<xsl:param name="number" select="1"/>
-    <xsl:if test="$noleft != 0">
-     <m:ci>$<xsl:value-of select="$number"/></m:ci>
-     <xsl:call-template name="printparam"><xsl:with-param name="noleft" select="$noleft - 1"/><xsl:with-param name="number" select="$number + 1"/></xsl:call-template>  
-    </xsl:if>
-</xsl:template>
-
-<xsl:template match="*" mode="counting">
-<xsl:param name="noparams" select="0"/>
-<xsl:param name="count" select="0"/>
- <xsl:choose>
- <xsl:when test="name(.) = &quot;PROD&quot;">
-  <xsl:apply-templates select="target/*[1]" mode="counting">
-   <xsl:with-param name="noparams" select="$noparams"/>
-   <xsl:with-param name="count" select="$count + 1"/>
-  </xsl:apply-templates>
- </xsl:when>
- <xsl:when test="name(.) = &quot;CAST&quot;">
-  <xsl:apply-templates select="term/*[1]" mode="counting">
-   <xsl:with-param name="noparams" select="$noparams"/>
-   <xsl:with-param name="count" select="$count"/> 
-  </xsl:apply-templates>
- </xsl:when>
- <xsl:otherwise>
-  <xsl:value-of select="$count - $noparams"/>
- </xsl:otherwise>
- </xsl:choose>
-</xsl:template>
-
-</xsl:stylesheet>
diff --git a/helm/style/objcontent.xsl.csc b/helm/style/objcontent.xsl.csc
deleted file mode 100644
index d2a846cba..000000000
--- a/helm/style/objcontent.xsl.csc
+++ /dev/null
@@ -1,223 +0,0 @@
-<?xml version="1.0"?>
-
-<!--******************************************************************--> 
-<!-- XSLT version 0.1 of CIC objects to objects and MathML content:   -->
-<!-- First draft: March 21 2000, Irene Schena                         -->
-<!--******************************************************************-->
-
-<!--******************************************************************-->
-<!-- MANCA: gestione annotation e linking                             -->
-<!--******************************************************************-->
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML">
-
-<xsl:import href="content.xsl"/>
-
-<!-- ROOT -->
-
-<xsl:template match="cicxml">
-    <xsl:variable name="url"><xsl:value-of select="@baseurl"/></xsl:variable>
-    <xsl:variable name="stylesheet"><xsl:value-of select="@stylesheet"/></xsl:variable>
-    <xsl:processing-instruction name="cocoon-format">type="text/xml"</xsl:processing-instruction>
-    <xsl:processing-instruction name="xml-stylesheet">href="<xsl:value-of select='concat($url,$stylesheet)'/>" type="text/xsl"</xsl:processing-instruction>
-    <xsl:processing-instruction name="cocoon-process">type="xslt"</xsl:processing-instruction>
-    <xsl:apply-templates/>
-</xsl:template>
-
-<!-- CIC OBJECTS -->
-
-<xsl:template match="Definition" mode="noannot">
-    <Definition name="{@name}">  
-     <xsl:if test="string(@params) != &quot;&quot;">
-      <Params>
-       <xsl:value-of select="@params"/>
-      </Params>
-     </xsl:if>
-     <body>
-       <xsl:apply-templates select="body/*[1]">
-        <xsl:with-param name="backpointer" select="&quot;*[1]&quot;"/>
-       </xsl:apply-templates>
-     </body>
-     <type>
-       <xsl:apply-templates select="type/*[1]">
-        <xsl:with-param name="backpointer" select="&quot;*[2]&quot;"/>
-       </xsl:apply-templates>
-     </type>
-    </Definition> 
-</xsl:template>
-
-<xsl:template match="Axiom" mode="noannot"> 
-    <Axiom name="{@name}">
-     <xsl:if test="string(@params) != &quot;&quot;">
-      <Params>
-       <xsl:value-of select="@params"/>
-      </Params>
-     </xsl:if>
-     <type>
-       <xsl:apply-templates select="type"/>
-     </type>
-    </Axiom> 
-</xsl:template>
-
-<xsl:template match="CurrentProof" mode="noannot">
-    <CurrentProof name="{@name}">
-     <xsl:for-each select="Conjecture">
-      <Conjecture no="./{@no}">
-        <xsl:apply-templates select="."/>
-      </Conjecture>
-     </xsl:for-each>
-     <body>
-       <xsl:apply-templates select="body"/>
-     </body>
-     <type>
-       <xsl:apply-templates select="type"/>
-     </type>
-    </CurrentProof> 
-</xsl:template>
-
-<xsl:template match="InductiveDefinition" mode="noannot">
-    <InductiveDefinition>
-     <xsl:if test="string(@params) != &quot;&quot;">
-      <Params>
-       <xsl:value-of select="@params"/>
-      </Params>
-     </xsl:if> 
-     <xsl:if test="string(@noParams) != 0"> 
-      <xsl:apply-templates select="InductiveType/arity/*[1]" mode="abstparams">
-       <xsl:with-param name="noparams" select="@noParams"/>
-      </xsl:apply-templates>
-     </xsl:if>
-     <xsl:for-each select="InductiveType">
-      <InductiveType name="{./@name}" inductive="{./@inductive}">
-       <arity>
-         <xsl:apply-templates select="./arity/*[1]" mode="abstparams">
-          <xsl:with-param name="noparams" select="../@noParams"/>
-          <xsl:with-param name="target" select="1"/>
-         </xsl:apply-templates>
-       </arity>
-       <xsl:for-each select="./Constructor">
-        <Constructor name="{./@name}">
-          <xsl:apply-templates select="./*[1]" mode="abstparams">
-           <xsl:with-param name="noparams" select="../../@noParams"/>
-           <xsl:with-param name="target" select="1"/>
-          </xsl:apply-templates>
-        </Constructor>
-       </xsl:for-each>
-      </InductiveType>
-     </xsl:for-each> 
-    </InductiveDefinition>       
-</xsl:template>
-
-<xsl:template match="Variable" mode="noannot"> 
-    <Variable name="{@name}">
-     <type>
-       <xsl:apply-templates select="type"/>
-     </type>
-    </Variable> 
-</xsl:template>
-
-<!--*******************************************-->
-<!--    ABSTRACTING PARAMETERS AND COUNTING    -->
-<!--*******************************************-->
-<!-- Si dimentica i CAST dei termini che astrae. Nel caso dell'astrazione -->
-<!-- dei lambda dei pattern del CASE, qualora i lambda non si trovino     -->
-<!-- nella forma weak-head, astrae solo i lambda che trova e restituisce  -->
-<!-- un corpo depurato da tutti i primi cast che precedono il termine     -->
-<!-- restituito.                                                          -->
-
-<xsl:template match="*" mode="abstparams">
-<xsl:param name="noparams" select="0"/>
-<xsl:param name="target" select="0"/>
-<xsl:param name="binder">PROD</xsl:param>
-    <xsl:choose>
-    <xsl:when test="($noparams != 0) and ((name(.)=string($binder)) or (name(.)=&quot;CAST&quot;))">
-     <xsl:choose>
-     <xsl:when test="name(.) = string($binder)">
-      <xsl:if test="$target = 0">
-       <xsl:choose>
-       <xsl:when test="string($binder) = &quot;LAMBDA&quot;">
-        <m:ci>
-         <xsl:value-of select="target/@binder"/>
-        </m:ci>
-       </xsl:when>
-       <xsl:otherwise> 
-        <Param name="{target/@binder}">
-         <xsl:apply-templates select="source" mode="noannot"/>
-        </Param>
-       </xsl:otherwise>
-       </xsl:choose>
-      </xsl:if>
-      <xsl:apply-templates select="target/*[1]" mode="abstparams">
-       <xsl:with-param name="noparams" select="$noparams - 1"/>
-       <xsl:with-param name="target" select="$target"/>
-       <xsl:with-param name="binder" select="$binder"/>
-      </xsl:apply-templates>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-templates select="term/*[1]" mode="abstparams">
-       <xsl:with-param name="noparams" select="$noparams"/>
-       <xsl:with-param name="target" select="$target"/>
-       <xsl:with-param name="binder" select="$binder"/>
-      </xsl:apply-templates>
-     </xsl:otherwise>
-     </xsl:choose>
-    </xsl:when>
-    <xsl:otherwise> 
-     <xsl:choose>
-     <xsl:when test="($target = 1) and ($noparams != 0)">
-      <m:apply>
-      <m:csymbol>app</m:csymbol>
-      <xsl:apply-templates select="." mode="noannot"/>
-      <xsl:call-template name="printparam"><xsl:with-param name="noleft" select="$noparams"/></xsl:call-template>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:choose>
-      <xsl:when test="$noparams != 0">
-      <xsl:call-template name="printparam"><xsl:with-param name="noleft" select="$noparams"/></xsl:call-template>
-      </xsl:when>
-      <xsl:otherwise>
-       <xsl:if test="$target = 1">
-        <xsl:apply-templates select="." mode="noannot"/>
-       </xsl:if>
-      </xsl:otherwise>
-      </xsl:choose>
-     </xsl:otherwise>
-     </xsl:choose>
-    </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<xsl:template name="printparam">
-<xsl:param name="noleft" select="0"/>
-<xsl:param name="number" select="1"/>
-    <xsl:if test="$noleft != 0">
-     <m:ci>$<xsl:value-of select="$number"/></m:ci>
-     <xsl:call-template name="printparam"><xsl:with-param name="noleft" select="$noleft - 1"/><xsl:with-param name="number" select="$number + 1"/></xsl:call-template>  
-    </xsl:if>
-</xsl:template>
-
-<xsl:template match="*" mode="counting">
-<xsl:param name="noparams" select="0"/>
-<xsl:param name="count" select="0"/>
- <xsl:choose>
- <xsl:when test="name(.) = &quot;PROD&quot;">
-  <xsl:apply-templates select="target/*[1]" mode="counting">
-   <xsl:with-param name="noparams" select="$noparams"/>
-   <xsl:with-param name="count" select="$count + 1"/>
-  </xsl:apply-templates>
- </xsl:when>
- <xsl:when test="name(.) = &quot;CAST&quot;">
-  <xsl:apply-templates select="term/*[1]" mode="counting">
-   <xsl:with-param name="noparams" select="$noparams"/>
-   <xsl:with-param name="count" select="$count"/> 
-  </xsl:apply-templates>
- </xsl:when>
- <xsl:otherwise>
-  <xsl:value-of select="$count - $noparams"/>
- </xsl:otherwise>
- </xsl:choose>
-</xsl:template>
-
-</xsl:stylesheet>
diff --git a/helm/style/objcontent_old.xsl b/helm/style/objcontent_old.xsl
deleted file mode 100644
index d3514b499..000000000
--- a/helm/style/objcontent_old.xsl
+++ /dev/null
@@ -1,220 +0,0 @@
-<?xml version="1.0"?>
-
-<!--******************************************************************--> 
-<!-- XSLT version 0.1 of CIC objects to objects and MathML content:   -->
-<!-- First draft: March 21 2000, Irene Schena                         -->
-<!--******************************************************************-->
-
-<!--******************************************************************-->
-<!-- MANCA: gestione annotation e linking                             -->
-<!--******************************************************************-->
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML"
-                              xmlns:helm="http://www.cs.unibo.it/helm">
-
-<xsl:import href="content.xsl"/>
-
-<!-- ROOT -->
-
-<xsl:template match="cicxml">
-    <xsl:variable name="url"><xsl:value-of select="@baseurl"/></xsl:variable>
-    <xsl:variable name="stylesheet"><xsl:value-of select="@stylesheet"/></xsl:variable>
-    <xsl:processing-instruction name="cocoon-format">type="text/xml"</xsl:processing-instruction>
-    <xsl:processing-instruction name="xml-stylesheet">href="<xsl:value-of select='concat($url,$stylesheet)'/>" type="text/xsl"</xsl:processing-instruction>
-    <xsl:processing-instruction name="cocoon-process">type="xslt"</xsl:processing-instruction>
-    <xsl:apply-templates select="*[1]"/>
-</xsl:template>
-
-<!-- CIC OBJECTS -->
-
-<xsl:template match="Definition" mode="noannot">
-    <Definition name="{@name}" helm:xref="{@id}">  
-     <xsl:if test="string(@params) != &quot;&quot;">
-      <Params>
-       <xsl:value-of select="@params"/>
-      </Params>
-     </xsl:if>
-     <body>
-      <xsl:apply-templates select="body"/>
-     </body>
-     <type>
-       <xsl:apply-templates select="type"/>
-     </type>
-    </Definition> 
-</xsl:template>
-
-<xsl:template match="Axiom" mode="noannot"> 
-    <Axiom name="{@name}" helm:xref="{@id}">
-     <xsl:if test="string(@params) != &quot;&quot;">
-      <Params>
-       <xsl:value-of select="@params"/>
-      </Params>
-     </xsl:if>
-     <type>
-       <xsl:apply-templates select="type"/>
-     </type>
-    </Axiom> 
-</xsl:template>
-
-<xsl:template match="CurrentProof" mode="noannot">
-    <CurrentProof name="{@name}" helm:xref="{@id}">
-     <xsl:for-each select="Conjecture">
-      <Conjecture no="./{@no}">
-        <xsl:apply-templates select="."/>
-      </Conjecture>
-     </xsl:for-each>
-     <body>
-       <xsl:apply-templates select="body"/>
-     </body>
-     <type>
-       <xsl:apply-templates select="type"/>
-     </type>
-    </CurrentProof> 
-</xsl:template>
-
-<xsl:template match="InductiveDefinition" mode="noannot">
-    <InductiveDefinition helm:xref="{@id}">
-     <xsl:if test="string(@params) != &quot;&quot;">
-      <Params>
-       <xsl:value-of select="@params"/>
-      </Params>
-     </xsl:if> 
-     <xsl:if test="string(@noParams) != 0"> 
-      <xsl:apply-templates select="InductiveType/arity/*[1]" mode="abstparams">
-       <xsl:with-param name="noparams" select="@noParams"/>
-      </xsl:apply-templates>
-     </xsl:if>
-     <xsl:for-each select="InductiveType">
-      <InductiveType name="{./@name}" inductive="{./@inductive}">
-       <arity>
-         <xsl:apply-templates select="./arity/*[1]" mode="abstparams">
-          <xsl:with-param name="noparams" select="../@noParams"/>
-          <xsl:with-param name="target" select="1"/>
-         </xsl:apply-templates>
-       </arity>
-       <xsl:for-each select="./Constructor">
-        <Constructor name="{./@name}">
-          <xsl:apply-templates select="./*[1]" mode="abstparams">
-           <xsl:with-param name="noparams" select="../../@noParams"/>
-           <xsl:with-param name="target" select="1"/>
-          </xsl:apply-templates>
-        </Constructor>
-       </xsl:for-each>
-      </InductiveType>
-     </xsl:for-each> 
-    </InductiveDefinition>       
-</xsl:template>
-
-<xsl:template match="Variable" mode="noannot"> 
-    <Variable name="{@name}" helm:xref="{@id}">
-     <type>
-       <xsl:apply-templates select="type"/>
-     </type>
-    </Variable> 
-</xsl:template>
-
-<!--*******************************************-->
-<!--    ABSTRACTING PARAMETERS AND COUNTING    -->
-<!--*******************************************-->
-<!-- Si dimentica i CAST dei termini che astrae. Nel caso dell'astrazione -->
-<!-- dei lambda dei pattern del CASE, qualora i lambda non si trovino     -->
-<!-- nella forma weak-head, astrae solo i lambda che trova e restituisce  -->
-<!-- un corpo depurato da tutti i primi cast che precedono il termine     -->
-<!-- restituito.                                                          -->
-
-<xsl:template match="*" mode="abstparams">
-<xsl:param name="noparams" select="0"/>
-<xsl:param name="target" select="0"/>
-<xsl:param name="binder">PROD</xsl:param>
-    <xsl:choose>
-    <xsl:when test="($noparams != 0) and ((name(.)=string($binder)) or (name(.)=&quot;CAST&quot;))">
-     <xsl:choose>
-     <xsl:when test="name(.) = string($binder)">
-      <xsl:if test="$target = 0">
-       <xsl:choose>
-       <xsl:when test="string($binder) = &quot;LAMBDA&quot;">
-        <m:ci>
-         <xsl:value-of select="target/@binder"/>
-        </m:ci>
-       </xsl:when>
-       <xsl:otherwise> 
-        <Param name="{target/@binder}">
-         <xsl:apply-templates select="source" mode="noannot"/>
-        </Param>
-       </xsl:otherwise>
-       </xsl:choose>
-      </xsl:if>
-      <xsl:apply-templates select="target/*[1]" mode="abstparams">
-       <xsl:with-param name="noparams" select="$noparams - 1"/>
-       <xsl:with-param name="target" select="$target"/>
-       <xsl:with-param name="binder" select="$binder"/>
-      </xsl:apply-templates>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-templates select="term/*[1]" mode="abstparams">
-       <xsl:with-param name="noparams" select="$noparams"/>
-       <xsl:with-param name="target" select="$target"/>
-       <xsl:with-param name="binder" select="$binder"/>
-      </xsl:apply-templates>
-     </xsl:otherwise>
-     </xsl:choose>
-    </xsl:when>
-    <xsl:otherwise> 
-     <xsl:choose>
-     <xsl:when test="($target = 1) and ($noparams != 0)">
-      <m:apply>
-      <m:csymbol>app</m:csymbol>
-      <xsl:apply-templates select="." mode="noannot"/>
-      <xsl:call-template name="printparam"><xsl:with-param name="noleft" select="$noparams"/></xsl:call-template>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:choose>
-      <xsl:when test="$noparams != 0">
-      <xsl:call-template name="printparam"><xsl:with-param name="noleft" select="$noparams"/></xsl:call-template>
-      </xsl:when>
-      <xsl:otherwise>
-       <xsl:if test="$target = 1">
-        <xsl:apply-templates select="." mode="noannot"/>
-       </xsl:if>
-      </xsl:otherwise>
-      </xsl:choose>
-     </xsl:otherwise>
-     </xsl:choose>
-    </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<xsl:template name="printparam">
-<xsl:param name="noleft" select="0"/>
-<xsl:param name="number" select="1"/>
-    <xsl:if test="$noleft != 0">
-     <m:ci>$<xsl:value-of select="$number"/></m:ci>
-     <xsl:call-template name="printparam"><xsl:with-param name="noleft" select="$noleft - 1"/><xsl:with-param name="number" select="$number + 1"/></xsl:call-template>  
-    </xsl:if>
-</xsl:template>
-
-<xsl:template match="*" mode="counting">
-<xsl:param name="noparams" select="0"/>
-<xsl:param name="count" select="0"/>
- <xsl:choose>
- <xsl:when test="name(.) = &quot;PROD&quot;">
-  <xsl:apply-templates select="target/*[1]" mode="counting">
-   <xsl:with-param name="noparams" select="$noparams"/>
-   <xsl:with-param name="count" select="$count + 1"/>
-  </xsl:apply-templates>
- </xsl:when>
- <xsl:when test="name(.) = &quot;CAST&quot;">
-  <xsl:apply-templates select="term/*[1]" mode="counting">
-   <xsl:with-param name="noparams" select="$noparams"/>
-   <xsl:with-param name="count" select="$count"/> 
-  </xsl:apply-templates>
- </xsl:when>
- <xsl:otherwise>
-  <xsl:value-of select="$count - $noparams"/>
- </xsl:otherwise>
- </xsl:choose>
-</xsl:template>
-
-</xsl:stylesheet>
diff --git a/helm/style/params.xsl b/helm/style/params.xsl
deleted file mode 100644
index 034eeba97..000000000
--- a/helm/style/params.xsl
+++ /dev/null
@@ -1,191 +0,0 @@
-<?xml version="1.0"?>
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML">
-
-<!--***********************************************************************--> 
-<!-- auxiliary functions                                                   -->
-<!-- HELM Group: Asperti, Padovani, Sacerdoti, Schena                      -->
-<!--***********************************************************************--> 
-
-<!--***********************************************************************-->
-<!-- get the name from a URI                                               -->
-<!--***********************************************************************-->
-
-<!-- CSC: PROBLEMA: URI CHE NON CONTENGONO / ED INIZIANO CON cic: -->
-<xsl:template name="name_of_uri">
- <xsl:param name="uri" select="&quot;&quot;"/>
- <xsl:variable name="suffix" select="substring-after($uri, &quot;/&quot;)"/>
- <xsl:choose>
-  <xsl:when test="$suffix = &quot;&quot;">
-   <!-- CSC: PROBLEMA: .con PUO' APPARIRE ALL'INTERNO DELLE URI ===>
-     SCRIVERE UNA FUNZIONE RICORSIVA CHE RISOLVA -->
-   <xsl:value-of select="substring-before($uri,&quot;.con&quot;)"/>
-  </xsl:when>
-  <xsl:otherwise>
-   <xsl:call-template name="name_of_uri">
-    <xsl:with-param name="uri" select="$suffix"/>
-   </xsl:call-template>
-  </xsl:otherwise>
- </xsl:choose>
-</xsl:template>
-
-<!--***********************************************************************-->
-<!-- erase common prefix from two uris                                     -->
-<!--***********************************************************************-->
-
-<xsl:template name="common_prefix">
- <xsl:param name="first_uri" select="&quot;&quot;"/>
- <xsl:param name="second_uri" select="&quot;&quot;"/>
- <xsl:choose>
-  <xsl:when test="(substring-before($first_uri,&quot;/&quot;) = 
-                substring-before($second_uri,&quot;/&quot;) and 
-                substring-after($second_uri,&quot;/&quot;) != &quot;&quot;)">
-   <xsl:call-template name="common_prefix">
-    <xsl:with-param 
-        name="first_uri" select="substring-after($first_uri,&quot;/&quot;)"/>
-    <xsl:with-param 
-        name="second_uri" select="substring-after($second_uri,&quot;/&quot;)"/>    </xsl:call-template>
-  </xsl:when>
-  <xsl:otherwise>
-   <xsl:call-template name="slash_counting">
-    <xsl:with-param name="uri" select="$second_uri"/>
-    <xsl:with-param name="counter" select="0"/>
-   </xsl:call-template>
-  </xsl:otherwise>   
- </xsl:choose>
-</xsl:template>
-
-<xsl:template name="slash_counting">
- <xsl:param name="uri" select="&quot;&quot;"/>
- <xsl:param name="counter" select="0"/>
- <xsl:choose>
-  <xsl:when test="(substring-after($uri,&quot;/&quot;) != &quot;&quot;)">
-   <xsl:call-template name="slash_counting">
-    <xsl:with-param 
-        name="uri" select="substring-after($uri,&quot;/&quot;)"/>
-    <xsl:with-param
-        name="counter" select="$counter +1"/> 
-   </xsl:call-template>
-  </xsl:when>
-  <xsl:otherwise>
-   <xsl:value-of select="$counter"/>
-  </xsl:otherwise>
- </xsl:choose>   
-</xsl:template>
-
-<xsl:template name="blank_counting">
- <xsl:param name="string" select="&quot;&quot;"/>
- <xsl:param name="counter" select="0"/>
- <xsl:choose>
-  <xsl:when test="(substring-after($string,&quot; &quot;) != &quot;&quot;)">
-   <xsl:call-template name="blank_counting">
-    <xsl:with-param 
-        name="string" select="substring-after($string,&quot; &quot;)"/>
-    <xsl:with-param 
-        name="counter" select="$counter +1"/> 
-   </xsl:call-template>
-  </xsl:when>
-  <xsl:otherwise>
-   <xsl:value-of select="$counter + 1"/>
-  </xsl:otherwise> 
- </xsl:choose>  
-</xsl:template>
-
-<xsl:template name="double_point_counting">
- <xsl:param name="string" select="&quot;&quot;"/>
- <xsl:param name="counter" select="0"/>
- <xsl:choose>
-  <xsl:when test="(substring-after($string,&quot;:&quot;) != &quot;&quot;)">
-   <xsl:call-template name="double_point_counting">
-    <xsl:with-param 
-        name="string" select="substring-after($string,&quot;:&quot;)"/>
-    <xsl:with-param 
-        name="counter" select="$counter +1"/> 
-   </xsl:call-template>
-  </xsl:when>
-  <xsl:otherwise>
-   <xsl:value-of select="$counter"/>
-  </xsl:otherwise> 
- </xsl:choose>  
-</xsl:template>
-
-<xsl:template name="min">
- <xsl:param name="string" select="&quot;&quot;"/>
- <xsl:param name="counter" select="0"/>
- <xsl:choose>
-  <xsl:when test="contains($string,concat($counter,&quot;:&quot;))
-         or (0 > $counter)">
-  <xsl:value-of select="$counter"/>
-  </xsl:when>
-  <xsl:otherwise>
-   <xsl:call-template name="min">
-    <xsl:with-param 
-        name="string" select="$string"/>
-    <xsl:with-param 
-        name="counter" select="$counter -1"/> 
-   </xsl:call-template>
-  </xsl:otherwise>
- </xsl:choose>  
-</xsl:template>
-
-<xsl:template name="get_no_params">
-    <xsl:param name="first_uri" select="&quot;&quot;"/>
-    <xsl:param name="second_uri" select="&quot;&quot;"/>
-     <xsl:variable name="offset">
-      <xsl:call-template name="common_prefix">
-       <xsl:with-param name="first_uri" select="$first_uri"/>
-       <xsl:with-param name="second_uri" select="$second_uri"/>
-      </xsl:call-template>
-     </xsl:variable>
-     <xsl:choose>
-      <xsl:when test="$offset > 0">
-       <xsl:variable name="params"> 
-        <xsl:value-of 
-            select="document(concat(string($absPath),$second_uri))/*/@params"/>
-       </xsl:variable>
-       <xsl:variable name="minimum">
-        <xsl:call-template name="min">
-         <xsl:with-param name="string" select="$params"/>
-         <xsl:with-param name="counter" select="$offset - 1"/>
-        </xsl:call-template>
-       </xsl:variable>
-       <xsl:choose>
-        <xsl:when test="0 > $minimum">
-         0
-        </xsl:when>
-        <xsl:otherwise>
-         <xsl:variable name="relevant_params">
-          <!-- the blank after : in the next line is essential -->
-          <xsl:value-of 
-            select="substring-after($params,concat($minimum,&quot;: &quot;))"/>
-         </xsl:variable>
-         <xsl:variable name="tokens">
-          <xsl:call-template name="blank_counting">
-           <xsl:with-param name="string" select="$relevant_params"/>
-           <xsl:with-param name="counter" select="0"/>
-          </xsl:call-template>
-         </xsl:variable>
-         <xsl:variable name="separators">
-          <xsl:call-template name="double_point_counting">
-           <xsl:with-param name="string" select="$relevant_params"/>
-           <xsl:with-param name="counter" select="0"/>
-          </xsl:call-template>
-         </xsl:variable>
-         <xsl:value-of select="$tokens - $separators"/>
-        </xsl:otherwise>
-       </xsl:choose>
-      </xsl:when>
-      <xsl:otherwise>
-      0
-      </xsl:otherwise>
-     </xsl:choose>
-</xsl:template>
-
-</xsl:stylesheet> 
-
-
-
-
-
-
diff --git a/helm/style/proof31-10-00.xsl b/helm/style/proof31-10-00.xsl
deleted file mode 100644
index 3c4234307..000000000
--- a/helm/style/proof31-10-00.xsl
+++ /dev/null
@@ -1,210 +0,0 @@
-<?xml version="1.0"?>
-
-<!--******************************************************************--> 
-<!-- Basic Logic                                                      -->
-<!-- First draft: April 3 2000                                        -->
-<!-- HELM Group: Asperti, Padovani, Sacerdoti, Schena                 -->
-<!--******************************************************************-->
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML"
-                              xmlns:helm="http://www.cs.unibo.it/helm">
-
-<!--******************************************************************-->
-<!-- Variable containing the absolute path of the CIC file            -->
-<!--******************************************************************-->
-
-<xsl:variable name="absPath">http://localhost:8081/get?url=</xsl:variable>
-
-<!-- ************************* LOGIC *********************************-->
-
-<!-- Proof objects -->
-
-<!-- <xsl:key name="typeid" use="@id" match="TYPE"/> -->
-
-<xsl:template match="LAMBDA|PROD|CAST|REL|SORT|APPLY|VAR|META|CONST|MUTIND|MUTCONSTRUCT|MUTCASE|FIX|COFIX" mode="noannot">
-  <xsl:choose> 
-   <xsl:when test="@id">
-    <xsl:variable name="id" select="@id"/>
-    <xsl:choose>
-     <!-- <xsl:when test="//ALLTYPES and key('typeid',@id)"> -->
-     <xsl:when test="//ALLTYPES/TYPE[@id=$id]">
-     <xsl:choose>
-      <xsl:when test="name()= 'APPLY' and CONST[
- attribute::uri='cic:/coq/INIT/Logic_Type/eqT_ind.con' or
- attribute::uri='cic:/coq/ZARITH/auxiliary/eqT_ind_r.con'] and count(child::*) = 7">
-       <m:apply helm:xref="{@id}">
-        <m:csymbol>rewrite</m:csymbol>
-        <xsl:apply-templates mode="pure" select="//ALLTYPES/TYPE[@id=$id]"/>
-        <m:apply>
-         <m:csymbol>rw_step</m:csymbol>
-         <xsl:apply-templates mode="pure" select="*[3]"/>
-         <xsl:apply-templates mode="pure" select="*[6]"/>
-         <xsl:apply-templates mode="pure" select="*[7]"/>
-        </m:apply>
-        <xsl:apply-templates mode="rewrite" select="*[5]"/>
-       </m:apply>
-      </xsl:when>
-      <!-- aggiungere la verifica dell'esistenza dei lambda per and_ind -->
-      <xsl:when test="name()= 'APPLY' and CONST[
- attribute::uri='cic:/coq/INIT/Logic/Conjunction/and_ind.con'] 
- and count(child::*) = 6">
-       <m:apply helm:xref="{@id}">
-        <m:csymbol>and_ind</m:csymbol>
-        <xsl:apply-templates mode="noannot" select="*[6]"/>
-        <m:ci><xsl:value-of select="*[5]/target/@binder"/></m:ci>
-        <xsl:apply-templates mode="pure" select="*[5]/source/*"/>
-        <m:ci><xsl:value-of select="*[5]/target/LAMBDA/target/@binder"/></m:ci>
-        <xsl:apply-templates mode="pure" select="*[5]/target/LAMBDA/source/*"/>
-        <xsl:apply-templates mode="noannot" select="*[5]/target/LAMBDA/target/*"/>
-       </m:apply>
-      </xsl:when>
-      <xsl:when test="name()= 'APPLY' and CONST[
- attribute::uri='cic:/coq/INIT/Logic/Disjunction/or_ind.con'] 
- and count(child::*) = 7">
-       <m:apply helm:xref="{@id}">
-        <m:csymbol>or_ind</m:csymbol>
-        <xsl:apply-templates mode="noannot" select="*[7]"/>
-        <xsl:apply-templates mode="pure" select="//ALLTYPES/TYPE[@id=$id]"/>
-        <xsl:apply-templates mode="pure" select="*[5]"/>
-        <xsl:apply-templates mode="pure" select="*[6]"/>
-       </m:apply>
-      </xsl:when>
-      <xsl:otherwise>
-       <m:apply helm:xref="{@id}">
-        <m:csymbol>proof</m:csymbol>
-        <xsl:apply-templates select="." mode="pure"/>
-        <!-- <xsl:apply-templates select="key('typeid',@id)" mode="pure"/> -->
-        <xsl:apply-templates select="//ALLTYPES/TYPE[@id=$id]" mode="pure"/>
-       </m:apply>
-      </xsl:otherwise>
-     </xsl:choose>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-templates select="." mode="pure"/>
-     </xsl:otherwise>
-    </xsl:choose>
-   </xsl:when>
-   <xsl:otherwise>
-    <xsl:apply-templates select="." mode="pure"/>
-   </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match="*" mode="rewrite">
-  <xsl:choose>
-   <xsl:when test="name()= 'APPLY' and CONST[
- attribute::uri='cic:/coq/INIT/Logic_Type/eqT_ind.con' or
- attribute::uri='cic:/coq/ZARITH/auxiliary/eqT_ind_r.con'] and count(child::*) = 7">
-    <xsl:variable name="id" select="@id"/>
-     <xsl:apply-templates mode="pure" select="//ALLTYPES/TYPE[@id=$id]"/>
-     <m:apply>
-      <m:csymbol>rw_step</m:csymbol>
-      <xsl:apply-templates mode="pure" select="*[3]"/>
-      <xsl:apply-templates mode="pure" select="*[6]"/>
-      <xsl:apply-templates mode="pure" select="*[7]"/>
-     </m:apply>
-     <xsl:apply-templates mode="rewrite" select="*[5]"/>
-   </xsl:when>
-   <xsl:otherwise>
-    <xsl:apply-templates mode="noannot" select="."/>
-   </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-
-<!-- Basic proof operators -->
-
-<!-- non del tutto soddisfacente, ma .... -->
-<xsl:template match="APPLY[CONST[
- attribute::uri='cic:/coq/INIT/Logic_Type/eqT_ind.con' or
- attribute::uri='cic:/coq/ZARITH/auxiliary/eqT_ind_r.con']]" mode="appflat">
-    <xsl:choose>
-     <xsl:when test="count(child::*) > 7">
-      <xsl:variable name="id" select="@id"/>
-      <xsl:variable name="ideqp" select="*[7]/@id"/>
-      <xsl:variable name="idsubp" select="*[5]/@id"/>
-      <xsl:variable name="leteqp" select="boolean(//ALLTYPES/TYPE[@id=$ideqp])"/>
-      <xsl:variable name="letsubp" select="boolean(//ALLTYPES/TYPE[@id=$idsubp])"/>
-      <m:apply helm:xref="{@id}">
-       <m:csymbol>rewrite_and_apply</m:csymbol>
-       <m:apply>
-        <m:csymbol>rw_step</m:csymbol>
-        <xsl:apply-templates mode="pure" select="*[3]"/>
-        <xsl:apply-templates mode="pure" select="*[6]"/>
-        <xsl:choose>
-         <xsl:when test="$leteqp">
-          <xsl:choose>
-           <xsl:when test="$letsubp">
-            <m:ci>
-             <xsl:value-of select="'h2'"/>
-            </m:ci>
-           </xsl:when>
-           <xsl:otherwise>
-            <m:ci>
-             <xsl:value-of select="'h1'"/>
-            </m:ci>
-           </xsl:otherwise>
-          </xsl:choose>
-         </xsl:when>
-         <xsl:otherwise>
-          <xsl:apply-templates mode="pure" select="*[7]"/>
-         </xsl:otherwise>
-        </xsl:choose>
-       </m:apply>
-      <xsl:choose>
-       <xsl:when test="$letsubp">
-        <m:ci>
-         <xsl:value-of select="'h1'"/>
-        </m:ci>
-       </xsl:when>
-       <xsl:otherwise>
-        <xsl:apply-templates mode="pure" select="*[5]"/>
-       </xsl:otherwise>
-      </xsl:choose>
-      <xsl:apply-templates mode="flat" select="*[8]">
-       <xsl:with-param name="n">
-        <xsl:value-of select="1+$letsubp+$leteqp"/>
-       </xsl:with-param>
-      </xsl:apply-templates>
-     </m:apply>
-    </xsl:when>
-    <xsl:otherwise>
-     <m:apply helm:xref="{@id}">
-      <m:csymbol>app</m:csymbol>
-      <xsl:apply-templates mode="flat" select="*[1]"/>
-     </m:apply>
-    </xsl:otherwise>
-   </xsl:choose>
-</xsl:template> 
-
-<xsl:template match="APPLY[CONST[
- attribute::uri='cic:/coq/INIT/Logic/Conjunction/and_ind.con']]" mode="appflat">
-    <xsl:choose>
-     <xsl:when test="count(child::*) > 4">
-      <m:apply helm:xref="{@id}">
-       <m:csymbol>app</m:csymbol>
-       <xsl:apply-templates mode="pure" select="*[1]"/>
-       <m:ci>*</m:ci>
-       <m:ci>*</m:ci>
-       <m:ci>*</m:ci>
-       <xsl:apply-templates mode="flat" select="*[5]"/>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <m:apply helm:xref="{@id}">
-       <m:csymbol>app</m:csymbol>
-       <xsl:apply-templates mode="flat" select="*[1]"/>
-      </m:apply>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template> 
-
-
-</xsl:stylesheet>
-
-
-
-
-
-
diff --git a/helm/style/proofs.xsl b/helm/style/proofs.xsl
deleted file mode 100644
index 8265e079e..000000000
--- a/helm/style/proofs.xsl
+++ /dev/null
@@ -1,254 +0,0 @@
-<?xml version="1.0"?>
-
-<!--******************************************************************--> 
-<!-- Basic Logic                                                      -->
-<!-- First draft: April 3 2000                                        -->
-<!-- HELM Group: Asperti, Padovani, Sacerdoti, Schena                 -->
-<!--******************************************************************-->
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML"
-                              xmlns:helm="http://www.cs.unibo.it/helm">
-
-<!--******************************************************************-->
-<!-- Variable containing the absolute path of the CIC file            -->
-<!--******************************************************************-->
-
-<xsl:variable name="absPath">http://localhost:8081/get?url=</xsl:variable>
-
-<!-- ************************* LOGIC *********************************-->
-
-<!-- Proof objects -->
-
-<!-- <xsl:key name="typeid" use="@id" match="TYPE"/> -->
-
-<xsl:template match="LAMBDA|PROD|CAST|REL|SORT|APPLY|VAR|META|CONST|MUTIND|MUTCONSTRUCT|MUTCASE|FIX|COFIX" mode="noannot">
-  <xsl:choose> 
-   <xsl:when test="@id">
-    <xsl:variable name="id" select="@id"/>
-    <xsl:choose>
-     <!-- <xsl:when test="//ALLTYPES and key('typeid',@id)"> -->
-     <xsl:when test="//ALLTYPES/TYPE[@id=$id]">
-     <xsl:choose>
-      <xsl:when test="name()= 'APPLY' and CONST[
- attribute::uri='cic:/coq/INIT/Logic_Type/eqT_ind.con' or
- attribute::uri='cic:/coq/ZARITH/auxiliary/eqT_ind_r.con'] and count(child::*) = 7">
-       <m:apply helm:xref="{@id}">
-        <m:csymbol>thread</m:csymbol>
-        <xsl:apply-templates mode="pure" select="//ALLTYPES/TYPE[@id=$id]"/>
-        <m:apply>
-         <m:csymbol>rw_step</m:csymbol>
-         <xsl:apply-templates mode="pure" select="*[3]"/>
-         <xsl:apply-templates mode="pure" select="*[6]"/>
-         <xsl:apply-templates mode="pure" select="*[7]"/>
-        </m:apply>
-        <xsl:apply-templates mode="thread" select="*[5]"/>
-       </m:apply>
-      </xsl:when>
-      <!-- aggiungere la verifica dell'esistenza dei lambda per and_ind -->
-      <xsl:when test="name()= 'APPLY' and CONST[
- attribute::uri='cic:/coq/INIT/Logic/Conjunction/and_ind.con'] 
- and count(child::*) = 6">
-       <m:apply helm:xref="{@id}">
-        <m:csymbol>and_ind</m:csymbol>
-        <xsl:apply-templates mode="noannot" select="*[6]"/>
-        <m:ci><xsl:value-of select="*[5]/target/@binder"/></m:ci>
-        <xsl:apply-templates mode="pure" select="*[5]/source/*"/>
-        <m:ci><xsl:value-of select="*[5]/target/LAMBDA/target/@binder"/></m:ci>
-        <xsl:apply-templates mode="pure" select="*[5]/target/LAMBDA/source/*"/>
-        <xsl:apply-templates mode="noannot" select="*[5]/target/LAMBDA/target/*"/>
-       </m:apply>
-      </xsl:when>
-      <xsl:when test="name()= 'APPLY' and CONST[
- attribute::uri='cic:/coq/INIT/Logic/Disjunction/or_ind.con'] 
- and count(child::*) = 7">
-       <m:apply helm:xref="{@id}">
-        <m:csymbol>or_ind</m:csymbol>
-        <xsl:apply-templates mode="noannot" select="*[7]"/>
-        <xsl:apply-templates mode="pure" select="//ALLTYPES/TYPE[@id=$id]"/>
-        <xsl:apply-templates mode="pure" select="*[5]"/>
-        <xsl:apply-templates mode="pure" select="*[6]"/>
-       </m:apply>
-      </xsl:when>
-      <xsl:when test="count(*[@id = //ALLTYPES/TYPE/@id]) = 1">
-       <m:apply helm:xref="{@id}">
-        <m:csymbol>thread</m:csymbol>
-        <xsl:apply-templates mode="pure" select="//ALLTYPES/TYPE[@id=$id]"/>
-        <m:apply>
-         <m:csymbol>app</m:csymbol>
-         <xsl:apply-templates mode="copy-of-no-prop" select="*[1]"/>
-        </m:apply>
-        <xsl:apply-templates mode="thread" select="*[@id = //ALLTYPES/TYPE/@id]"/>
-       </m:apply>
-      </xsl:when>
-      <xsl:otherwise>
-       <m:apply helm:xref="{@id}">
-        <m:csymbol>proof</m:csymbol>
-        <xsl:apply-templates select="." mode="pure"/>
-        <!-- <xsl:apply-templates select="key('typeid',@id)" mode="pure"/> -->
-        <xsl:apply-templates select="//ALLTYPES/TYPE[@id=$id]" mode="pure"/>
-       </m:apply>
-      </xsl:otherwise>
-     </xsl:choose>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-templates select="." mode="pure"/>
-     </xsl:otherwise>
-    </xsl:choose>
-   </xsl:when>
-   <xsl:otherwise>
-    <xsl:apply-templates select="." mode="pure"/>
-   </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match="*" mode="copy-of-no-prop">
- <xsl:choose>
-  <xsl:when test="@id = //ALLTYPES/TYPE/@id">
-   <m:ci>prev</m:ci>
-  </xsl:when>
-  <xsl:otherwise>
-   <xsl:apply-templates select="." mode="pure"/>
-  </xsl:otherwise>
- </xsl:choose>
- <xsl:apply-templates mode="copy-of-no-prop" select="following-sibling::*[1]"/>
-</xsl:template>
-
-<xsl:template match="*" mode="thread">
-  <xsl:choose>
-   <xsl:when test="name()= 'APPLY' and CONST[
- attribute::uri='cic:/coq/INIT/Logic_Type/eqT_ind.con' or
- attribute::uri='cic:/coq/ZARITH/auxiliary/eqT_ind_r.con'] and count(child::*) = 7">
-    <xsl:variable name="id" select="@id"/>
-     <xsl:apply-templates mode="pure" select="//ALLTYPES/TYPE[@id=$id]"/>
-     <m:apply>
-      <m:csymbol>rw_step</m:csymbol>
-      <xsl:apply-templates mode="pure" select="*[3]"/>
-      <xsl:apply-templates mode="pure" select="*[6]"/>
-      <xsl:apply-templates mode="pure" select="*[7]"/>
-     </m:apply>
-     <xsl:apply-templates mode="thread" select="*[5]"/>
-   </xsl:when>
-<!--**** Patch temporanea, per il problema dei threads ***-->
-<xsl:when test="(name()= 'APPLY' and CONST[
- attribute::uri='cic:/coq/INIT/Logic/Conjunction/and_ind.con'] 
- and count(child::*) = 6) or
-(name()= 'APPLY' and CONST[
- attribute::uri='cic:/coq/INIT/Logic/Disjunction/or_ind.con'] 
- and count(child::*) = 7)">
- <xsl:apply-templates mode="noannot" select="."/>
-</xsl:when>
-<!--**** Fine Patch temporanea, per il problema dei threads ***-->
-   <xsl:when test="count(*[@id = //ALLTYPES/TYPE/@id]) = 1">
-       <xsl:variable name="id" select="@id"/>
-       <m:apply helm:xref="{@id}">
-        <m:csymbol>thread</m:csymbol>
-        <xsl:apply-templates mode="pure" select="//ALLTYPES/TYPE[@id=$id]"/>
-        <m:apply>
-         <xsl:apply-templates mode="copy-of-no-prop" select="*[1]"/>
-        </m:apply>
-        <xsl:apply-templates mode="thread" select="*[@id = //ALLTYPES/TYPE/@id]"/>
-       </m:apply>
-   </xsl:when>
-   <xsl:otherwise>
-    <xsl:apply-templates mode="noannot" select="."/>
-   </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-
-<!-- Basic proof operators -->
-
-<!-- non del tutto soddisfacente, ma .... -->
-<xsl:template match="APPLY[CONST[
- attribute::uri='cic:/coq/INIT/Logic_Type/eqT_ind.con' or
- attribute::uri='cic:/coq/ZARITH/auxiliary/eqT_ind_r.con']]" mode="appflat">
-    <xsl:choose>
-     <xsl:when test="count(child::*) > 7">
-      <xsl:variable name="id" select="@id"/>
-      <xsl:variable name="ideqp" select="*[7]/@id"/>
-      <xsl:variable name="idsubp" select="*[5]/@id"/>
-      <xsl:variable name="leteqp" select="boolean(//ALLTYPES/TYPE[@id=$ideqp])"/>
-      <xsl:variable name="letsubp" select="boolean(//ALLTYPES/TYPE[@id=$idsubp])"/>
-      <m:apply helm:xref="{@id}">
-       <m:csymbol>rewrite_and_apply</m:csymbol>
-       <m:apply>
-        <m:csymbol>rw_step</m:csymbol>
-        <xsl:apply-templates mode="pure" select="*[3]"/>
-        <xsl:apply-templates mode="pure" select="*[6]"/>
-        <xsl:choose>
-         <xsl:when test="$leteqp">
-          <xsl:choose>
-           <xsl:when test="$letsubp">
-            <m:ci>
-             <xsl:value-of select="'h2'"/>
-            </m:ci>
-           </xsl:when>
-           <xsl:otherwise>
-            <m:ci>
-             <xsl:value-of select="'h1'"/>
-            </m:ci>
-           </xsl:otherwise>
-          </xsl:choose>
-         </xsl:when>
-         <xsl:otherwise>
-          <xsl:apply-templates mode="pure" select="*[7]"/>
-         </xsl:otherwise>
-        </xsl:choose>
-       </m:apply>
-      <xsl:choose>
-       <xsl:when test="$letsubp">
-        <m:ci>
-         <xsl:value-of select="'h1'"/>
-        </m:ci>
-       </xsl:when>
-       <xsl:otherwise>
-        <xsl:apply-templates mode="pure" select="*[5]"/>
-       </xsl:otherwise>
-      </xsl:choose>
-      <xsl:apply-templates mode="flat" select="*[8]">
-       <xsl:with-param name="n">
-        <xsl:value-of select="1+$letsubp+$leteqp"/>
-       </xsl:with-param>
-      </xsl:apply-templates>
-     </m:apply>
-    </xsl:when>
-    <xsl:otherwise>
-     <m:apply helm:xref="{@id}">
-      <m:csymbol>app</m:csymbol>
-      <xsl:apply-templates mode="flat" select="*[1]"/>
-     </m:apply>
-    </xsl:otherwise>
-   </xsl:choose>
-</xsl:template> 
-
-<xsl:template match="APPLY[CONST[
- attribute::uri='cic:/coq/INIT/Logic/Conjunction/and_ind.con']]" mode="appflat">
-    <xsl:choose>
-     <xsl:when test="count(child::*) > 4">
-      <m:apply helm:xref="{@id}">
-       <m:csymbol>app</m:csymbol>
-       <xsl:apply-templates mode="pure" select="*[1]"/>
-       <m:ci>*</m:ci>
-       <m:ci>*</m:ci>
-       <m:ci>*</m:ci>
-       <xsl:apply-templates mode="flat" select="*[5]"/>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <m:apply helm:xref="{@id}">
-       <m:csymbol>app</m:csymbol>
-       <xsl:apply-templates mode="flat" select="*[1]"/>
-      </m:apply>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template> 
-
-
-</xsl:stylesheet>
-
-
-
-
-
-
diff --git a/helm/style/reals.xsl b/helm/style/reals.xsl
deleted file mode 100644
index 6c47f9562..000000000
--- a/helm/style/reals.xsl
+++ /dev/null
@@ -1,277 +0,0 @@
-<?xml version="1.0"?>
-
-<!--******************************************************************--> 
-<!-- Reals                                                            -->
-<!-- First draft: April 3 2000                                        -->
-<!-- HELM Group: Asperti, Padovani, Sacerdoti, Schena                 -->
-<!--******************************************************************-->
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML"
-                              xmlns:helm="http://www.cs.unibo.it/helm"
-                              xmlns:xlink="http://www.w3.org/1999/xlink">
-
-<!--******************************************************************-->
-<!-- Variable containing the absolute path of the CIC file            -->
-<!--******************************************************************-->
-
-<xsl:variable name="absPath">http://localhost:8081/get?url=</xsl:variable>
-
-<!-- ************************* LOGIC *********************************-->
-
-<!-- REALS -->
-
-<!--
-<xsl:template match="CONST[attribute::uri='cic:/coq/REALS/Raxioms/R.con']" mode="pure">
- <m:reals/>
-</xsl:template>
--->
-
-<!-- 0 e 1 -->
-
-<xsl:template match="CONST[attribute::uri='cic:/coq/REALS/Raxioms/R0.con']" mode="pure">
- <m:cn definitionURL="{@uri}" helm:xref="{@id}">0</m:cn>
-</xsl:template>
-
-<xsl:template match="CONST[attribute::uri='cic:/coq/REALS/Raxioms/R1.con']" mode="pure">
- <m:cn definitionURL="{@uri}" helm:xref="{@id}">1</m:cn>
-</xsl:template>
-
-
-
-<!-- Unary Operations -->
-
-<xsl:template match="APPLY[CONST[
- attribute::uri='cic:/coq/REALS/Raxioms/Ropp.con' or
- attribute::uri='cic:/coq/REALS/Rbasic_fun/Rabsolu.con' or
- attribute::uri='cic:/coq/REALS/Rfunctions/fact.con' or
- attribute::uri='cic:/coq/REALS/Rbase/Rsqr.con']]" mode="pure">
-    <xsl:choose>
-     <xsl:when test="count(child::*) = 2">
-      <xsl:variable name="elem">
-       <xsl:choose>
-        <xsl:when test="CONST/@uri='cic:/coq/REALS/Raxioms/Ropp.con'">
-         <xsl:value-of select="'minus'"/>
-        </xsl:when>
-        <xsl:when test="CONST/@uri='cic:/coq/REALS/Rbasic_fun/Rabsolu.con'">
-         <xsl:value-of select="'abs'"/>
-        </xsl:when>
-        <xsl:when test="CONST/@uri='cic:/coq/REALS/Rfunctions/fact.con'">
-         <xsl:value-of select="'factorial'"/>
-        </xsl:when>
-        <xsl:when test="CONST/@uri='cic:/coq/REALS/Rbase/Rsqr.con'">
-         <xsl:value-of select="'root'"/>
-        </xsl:when>
-       </xsl:choose>
-      </xsl:variable>
-      <m:apply helm:xref="{@id}">
-       <xsl:element name="{concat('m:',$elem)}">
-        <xsl:attribute name="definitionURL">
-         <xsl:value-of select="CONST/@uri"/> 
-        </xsl:attribute>
-        <xsl:attribute name="helm:xref">
-         <xsl:value-of select="CONST/@id"/>
-        </xsl:attribute>
-       </xsl:element>
-       <xsl:apply-templates select="*[2]" mode="noannot"/>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST[
- attribute::uri='cic:/coq/REALS/Raxioms/Rinv.con']]" mode="pure">
-    <xsl:choose>
-     <xsl:when test="count(child::*) = 2">
-      <m:apply helm:xref="{@id}">
-       <m:power/>
-       <xsl:apply-templates select="*[2]" mode="noannot"/>
-       <m:apply>
-        <m:minus>
-         <xsl:attribute name="definitionURL">
-          <xsl:value-of select="CONST/@uri"/> 
-         </xsl:attribute>
-        </m:minus>
-        <xsl:attribute name="helm:xref">
-         <xsl:value-of select="CONST/@id"/>
-        </xsl:attribute>
-        <m:cn>1</m:cn>
-       </m:apply>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<!-- Binary Operations and Relations -->
-
-<xsl:template match="APPLY[CONST[
- attribute::uri='cic:/coq/REALS/Raxioms/Rplus.con' or
- attribute::uri='cic:/coq/REALS/Raxioms/Rminus.con' or
- attribute::uri='cic:/coq/REALS/Raxioms/Rmult.con' or
- attribute::uri='cic:/coq/REALS/Raxioms/Rle.con' or
- attribute::uri='cic:/coq/REALS/Raxioms/Rlt.con' or
- attribute::uri='cic:/coq/REALS/Raxioms/Rge.con' or
- attribute::uri='cic:/coq/REALS/Raxioms/Rgt.con' or
- attribute::uri='cic:/coq/REALS/Rbasic_fun/Rmin.con' or
- attribute::uri='cic:/coq/REALS/Rfunctions/pow.con']]" mode="pure">
-    <xsl:choose>
-     <xsl:when test="count(child::*) = 3">
-      <xsl:variable name="elem">
-       <xsl:choose>
-        <xsl:when test="CONST/@uri='cic:/coq/REALS/Raxioms/Rplus.con'">
-         <xsl:value-of select="'plus'"/>
-        </xsl:when>
-        <xsl:when test="CONST/@uri='cic:/coq/REALS/Raxioms/Rminus.con'">
-         <xsl:value-of select="'minus'"/>
-        </xsl:when>
-        <xsl:when test="CONST/@uri='cic:/coq/REALS/Raxioms/Rmult.con'">
-         <xsl:value-of select="'times'"/>
-        </xsl:when>
-        <xsl:when test="CONST/@uri='cic:/coq/REALS/Raxioms/Rle.con'">
-         <xsl:value-of select="'leq'"/>
-        </xsl:when>
-        <xsl:when test="CONST/@uri='cic:/coq/REALS/Raxioms/Rlt.con'">
-         <xsl:value-of select="'lt'"/>
-        </xsl:when>
-        <xsl:when test="CONST/@uri='cic:/coq/REALS/Raxioms/Rge.con'">
-         <xsl:value-of select="'geq'"/>
-        </xsl:when>
-        <xsl:when test="CONST/@uri='cic:/coq/REALS/Raxioms/Rgt.con'">
-         <xsl:value-of select="'gt'"/>
-        </xsl:when>
-        <xsl:when test="CONST/@uri='cic:/coq/REALS/Rbasic_fun/Rmin.con'">
-         <xsl:value-of select="'min'"/>
-        </xsl:when>
-        <xsl:when test="CONST/@uri='cic:/coq/REALS/Rfunctions/pow.con'">
-         <xsl:value-of select="'power'"/>
-        </xsl:when>
-       </xsl:choose>
-      </xsl:variable>
-      <m:apply helm:xref="{@id}">
-       <xsl:element name="{concat('m:',$elem)}">
-        <xsl:attribute name="definitionURL">
-         <xsl:value-of select="CONST/@uri"/> 
-        </xsl:attribute>
-        <xsl:attribute name="helm:xref">
-         <xsl:value-of select="CONST/@id"/>
-        </xsl:attribute>
-       </xsl:element>
-       <xsl:apply-templates select="*[2]" mode="noannot"/>
-       <xsl:apply-templates select="*[3]" mode="noannot"/>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<!-- LIMIT -->
-
-<xsl:template match="APPLY[CONST[
- attribute::uri='cic:/coq/REALS/Rlimit/limit1_in.con']]" mode="pure">
-    <xsl:choose>
-     <xsl:when test="count(child::*) = 5">
-      <m:apply>
-       <m:eq/>
-       <xsl:choose>
-        <xsl:when test="name(*[2]) = 'LAMBDA'">
-         <m:apply helm:xref="{@id}">
-          <m:limit>
-           <xsl:attribute name="definitionURL">
-            <xsl:value-of select="CONST/@uri"/> 
-           </xsl:attribute>
-           <xsl:attribute name="helm:xref">
-            <xsl:value-of select="CONST/@id"/>
-           </xsl:attribute>
-          </m:limit>
-          <m:bvar>
-           <m:ci><xsl:value-of select="LAMBDA/target/@binder"/></m:ci>
-          </m:bvar>
-          <m:lowlimit>
-           <xsl:apply-templates select="*[5]" mode="noannot"/>
-          </m:lowlimit>
-          <xsl:apply-templates select="*[2]/target" mode="noannot"/>
-         </m:apply>
-        </xsl:when>
-        <xsl:otherwise>
-         <m:apply helm:xref="{@id}">
-          <m:limit/>
-          <m:bvar>
-           <m:ci>$x</m:ci>
-          </m:bvar>
-          <m:lowlimit>
-           <xsl:apply-templates select="*[5]" mode="noannot"/>
-          </m:lowlimit>
-          <m:apply>
-           <m:csymbol>app</m:csymbol>
-           <xsl:apply-templates select="*[2]" mode="noannot"/>
-           <m:ci>$x</m:ci>
-          </m:apply>
-         </m:apply>
-        </xsl:otherwise>
-       </xsl:choose>
-       <xsl:apply-templates select="*[4]" mode="noannot"/>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<!-- DIFFERENTIATION -->
-
-<xsl:template match="APPLY[CONST[
- attribute::uri='cic:/coq/REALS/Rderiv/D_in.con']]" mode="pure">
-    <xsl:choose>
-     <xsl:when test="count(child::*) = 4">
-      <m:apply>
-       <m:eq/>
-       <xsl:choose>
-        <xsl:when test="name(*[2]) = 'LAMBDA'">
-         <m:apply helm:xref="{@id}">
-          <m:diff >
-           <xsl:attribute name="definitionURL">
-            <xsl:value-of select="CONST/@uri"/> 
-           </xsl:attribute>
-           <xsl:attribute name="helm:xref">
-            <xsl:value-of select="CONST/@id"/>
-           </xsl:attribute>
-          </m:diff>
-          <m:bvar>
-           <m:ci><xsl:value-of select="LAMBDA[1]/target/@binder"/></m:ci>
-          </m:bvar>
-          <xsl:apply-templates select="*[2]/target" mode="noannot"/>
-         </m:apply>
-        </xsl:when>
-        <xsl:otherwise>
-         <m:apply helm:xref="{@id}">
-          <m:diff/>
-          <m:bvar>
-           <m:ci>$x</m:ci>
-          </m:bvar>
-          <m:apply>
-           <m:csymbol>app</m:csymbol>
-           <xsl:apply-templates select="*[2]" mode="noannot"/>
-           <m:ci>$x</m:ci>
-          </m:apply>
-         </m:apply>
-        </xsl:otherwise>
-       </xsl:choose>
-       <xsl:apply-templates select="*[4]" mode="noannot"/>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-</xsl:stylesheet>
diff --git a/helm/style/ricerca.xsl b/helm/style/ricerca.xsl
deleted file mode 100644
index e0fa13a93..000000000
--- a/helm/style/ricerca.xsl
+++ /dev/null
@@ -1,91 +0,0 @@
-<?xml version="1.0"?>
-
-
-<xsl:stylesheet version="0.1" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
-
-<xsl:output method="html"/>
-
-
-<!--******************************************************************-->
-<!-- Variable containing the absolute path of the CIC file            -->
-<!--******************************************************************-->
-
-<xsl:variable name="absPath">http://localhost:8081/get?url=</xsl:variable>
-
-<xsl:template match="/">
-               <html> 
-                <head></head>
-                <body>
-                <xsl:apply-templates select="Theory"/>
-                </body>
-               </html>
-</xsl:template>
-
-
-<!-- CIC TERMS -->
-
-
-
-<xsl:template match="MUTIND[string(@uri)='cic:/coq/INIT/Logic/Equality/eq.ind']" mode="search" >
-<!-- <xsl:param name="current_uri" select=""/> -->
-<!-- <h1><xsl:value-of select="string(@uri)"/></h1> -->
-<!-- <xsl:if test="string(@uri)='cic:/coq/INIT/Logic/Equality/eq.ind'"> -->
-  <xsl:value-of select="$current_uri"/><BR/>
-<!-- </xsl:if> -->
-</xsl:template>
-
-<!-- AGGIUNGERE cic: alle uri nei file Theory -->
-
-<xsl:template match="Theory">
-<!-- <xsl:param name="current_uri" select=""/> -->
- <xsl:apply-templates>
-  <xsl:with-param name="current_uri" select="string(@uri)"/>
- </xsl:apply-templates>
-</xsl:template>
-
-<xsl:template match="VARIABLE">
-<!-- <xsl:param name="current_uri" select=""/> -->
-<xsl:variable name="found" 
-  select="boolean(document(concat(string($absPath),string($current_uri),&quot;/&quot;,string(@uri)))//MUTIND[string(@uri)='cic:/coq/INIT/Logic/Equality/eq.ind'])"/>
-<xsl:if test="$found">
-  <xsl:value-of select="concat(string($current_uri),&quot;/&quot;,string(@uri),&quot;.xml&quot;)"/><BR/>
-</xsl:if>
-
-<!--   <xsl:with-param name="current_uri" select="concat(string($absPath),string($current_uri),&quot;/&quot;,string(@uri))"/>
- </xsl:apply-templates> -->
-</xsl:template>
-
-<xsl:template match="DEFINITION">
-<!-- <xsl:param name="current_uri" select=""/> -->
-<!-- <xsl:apply-templates select="document(concat(string($absPath),string($current_uri),&quot;/&quot;,string(@uri)))" mode="search">
-  <xsl:with-param name="current_uri" select="concat(string($absPath),string($current_uri),&quot;/&quot;,string(@uri))"/>
- </xsl:apply-templates> -->
-<xsl:variable name="found" 
-  select="boolean(document(concat(string($absPath),string($current_uri),&quot;/&quot;,string(@uri)))//MUTIND[string(@uri)='cic:/coq/INIT/Logic/Equality/eq.ind'])"/>
-<xsl:if test="$found">
-  <xsl:value-of select="concat(string($current_uri),&quot;/&quot;,string(@uri),&quot;.xml&quot;)"/><BR/>
-</xsl:if>
-</xsl:template>
-
-<xsl:template match="THEOREM">
-<!-- <xsl:param name="current_uri" select=""/> -->
-<!-- <xsl:apply-templates select="document(concat(string($absPath),string($current_uri),&quot;/&quot;,string(@uri)))" mode="search">
-  <xsl:with-param name="current_uri" select="concat(string($absPath),string($current_uri),&quot;/&quot;,string(@uri))"/>
- </xsl:apply-templates> -->
-<xsl:variable name="found" 
-  select="boolean(document(concat(string($absPath),string($current_uri),&quot;/&quot;,string(@uri)))//MUTIND[string(@uri)='cic:/coq/INIT/Logic/Equality/eq.ind'])"/>
-<xsl:if test="$found">
-  <xsl:value-of select="concat(string($current_uri),&quot;/&quot;,string(@uri),&quot;.xml&quot;)"/><BR/>
-</xsl:if>
-</xsl:template>
-
-
-<xsl:template match="SECTION">
-<!-- <xsl:param name="current_uri" select=""/> -->
- <xsl:apply-templates>
-  <xsl:with-param name="current_uri" select="concat($current_uri,&quot;/&quot;,string(@uri))"/>
- </xsl:apply-templates>
-
-</xsl:template>
-
-</xsl:stylesheet>
diff --git a/helm/style/rootcontent.xsl b/helm/style/rootcontent.xsl
deleted file mode 100644
index 7776afbbf..000000000
--- a/helm/style/rootcontent.xsl
+++ /dev/null
@@ -1,30 +0,0 @@
-<?xml version="1.0"?>
-
-<!--***********************************************************************--> 
-<!-- XSLT version 0.1 of the stylesheet to accomplish the right inclusion  -->
-<!-- of the content stylesheets:                                           -->
-<!-- First draft: May 26 2000, Claudio Sacerdoti Coen, Irene Schena        -->
-<!--***********************************************************************-->
-
-<!-- Schema of stylesheet precedences (from highest to lowest):          -->
-<!-- set -> basic -> annotatedcont                                       -->
-<!-- because theory_content is imported and has lower precendence than   -->
-<!-- the templates of rootcontent (i.e. the templates of set and basic). -->
-<!-- annotatedcont -> objcontent -> content                              -->
-<!-- because theory_content generates an import precedence tree.         --> 
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
-
-
-<xsl:import href="annotatedcont.xsl"/>
-<xsl:key name="id" use="@id" match="LAMBDA|PROD|CAST|REL|SORT|APPLY|VAR|META|CONST|MUTIND|MUTCONSTRUCT|MUTCASE|FIX|COFIX|Definition|Axiom|CurrentProof|InductiveDefinition|Variable"/>
-<xsl:include href="basic.xsl"/>
-<xsl:include href="set.xsl"/>
-<xsl:include href="reals.xsl"/>
-<xsl:include href="proofs.xsl"/>
-
-<xsl:variable name="showproof" select="0"/>
-</xsl:stylesheet>
-
-
-
diff --git a/helm/style/rootcontent_withproofs.xsl b/helm/style/rootcontent_withproofs.xsl
deleted file mode 100644
index 11d668436..000000000
--- a/helm/style/rootcontent_withproofs.xsl
+++ /dev/null
@@ -1,29 +0,0 @@
-<?xml version="1.0"?>
-
-<!--***********************************************************************--> 
-<!-- XSLT version 0.1 of the stylesheet to accomplish the right inclusion  -->
-<!-- of the content stylesheets:                                           -->
-<!-- First draft: May 26 2000, Claudio Sacerdoti Coen, Irene Schena        -->
-<!--***********************************************************************-->
-
-<!-- Schema of stylesheet precedences (from highest to lowest):          -->
-<!-- set -> basic -> annotatedcont                                       -->
-<!-- because theory_content is imported and has lower precendence than   -->
-<!-- the templates of rootcontent (i.e. the templates of set and basic). -->
-<!-- annotatedcont -> objcontent -> content                              -->
-<!-- because theory_content generates an import precedence tree.         --> 
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
-
-
-<xsl:import href="annotatedcont.xsl"/>
-<xsl:key name="id" use="@id" match="LAMBDA|PROD|CAST|REL|SORT|APPLY|VAR|META|CONST|MUTIND|MUTCONSTRUCT|MUTCASE|FIX|COFIX|Definition|Axiom|CurrentProof|InductiveDefinition|Variable"/>
-<xsl:include href="basic.xsl"/>
-<xsl:include href="set.xsl"/>
-<xsl:include href="reals.xsl"/>
-
-<xsl:variable name="showproof" select="1"/>
-</xsl:stylesheet>
-
-
-
diff --git a/helm/style/roottheory.xsl b/helm/style/roottheory.xsl
deleted file mode 100644
index d293ee6f2..000000000
--- a/helm/style/roottheory.xsl
+++ /dev/null
@@ -1,22 +0,0 @@
-<?xml version="1.0"?>
-
-<!--***********************************************************************--> 
-<!-- XSLT version 0.1 of the stylesheet to accomplish the right inclusion  -->
-<!-- of the theory content stylesheets:                                    -->
-<!-- First draft: May 26 2000, Claudio Sacerdoti Coen, Irene Schena        -->
-<!--***********************************************************************-->
-
-<!-- Schema of stylesheet precedences (from highest to lowest):          -->
-<!-- set -> basic -> theory_content                                      -->
-<!-- because theory_content is imported and has lower precendence than   -->
-<!-- the templates of rootcontent (i.e. the templates of set and basic). -->
-<!-- theory_content -> annotatedcont -> objcontent -> content            -->
-<!-- because theory_content generates an import precedence tree.         --> 
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
-
-<xsl:import href="theory_content.xsl"/>
-<xsl:include href="basic.xsl"/>
-<xsl:include href="set.xsl"/>
-
-</xsl:stylesheet>
diff --git a/helm/style/set.xsl b/helm/style/set.xsl
deleted file mode 100644
index b61b44e88..000000000
--- a/helm/style/set.xsl
+++ /dev/null
@@ -1,472 +0,0 @@
-<?xml version="1.0"?>
-
-<!--******************************************************************--> 
-<!-- Basic Set Theory                                                 -->
-<!-- First draft: April 3 2000                                        -->
-<!-- HELM Group: Asperti, Padovani, Sacerdoti, Schena                 -->
-<!--******************************************************************-->
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML"
-                              xmlns:helm="http://www.cs.unibo.it/helm">
-
-<!--******************************************************************-->
-<!-- Variable containing the absolute path of the CIC file            -->
-<!--******************************************************************-->
-
-<xsl:variable name="absPath">http://localhost:8081/get?url=</xsl:variable>
-
-<!-- ************************* LOGIC *********************************-->
-
-
-
-<xsl:template match="*" mode="set">
-    <xsl:choose>
-     <xsl:when test="name() = 'LAMBDA'">
-      <m:set>
-       <m:bvar>
-        <m:ci>
-         <xsl:value-of select="target/@binder"/>
-        </m:ci>
-        <m:type>
-         <xsl:apply-templates select="source" mode="noannot"/>
-        </m:type>
-       </m:bvar>
-       <m:condition>
-        <xsl:apply-templates select="target" mode="noannot"/>
-       </m:condition>
-      </m:set>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-templates select="." mode="noannot"/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-
-<!-- IN -->
-
-<xsl:template match="APPLY[CONST[attribute::uri='cic:/coq/SETS/Ensembles/Ensembles/In.con']]" mode="pure">
-    <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="/cicxml/@uri"/>
-      <xsl:with-param name="second_uri" select="CONST/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($no_params)) = 3">
-      <m:apply helm:xref="{@id}">
-       <m:in definitionURL="{CONST/@uri}" helm:xref="{CONST/@id}"/>
-       <xsl:apply-templates select="*[3+$no_params]" mode="noannot"/>
-       <!-- <xsl:apply-templates select="*[2+$no_params]" mode="noannot"/> -->
-       <xsl:apply-templates select="*[2+$no_params]" mode="set" /> 
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-
-<!-- NOT-IN -->
-<!-- NOT ha no parameters -->
-<xsl:template match="APPLY[CONST[attribute::uri='cic:/coq/INIT/Logic/not.con']
-and (count(child::*) = 2) and APPLY[CONST[attribute::uri='cic:/coq/SETS/Ensembles/Ensembles/In.con']]]" mode="pure">
-    <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="/cicxml/@uri"/>
-      <xsl:with-param name="second_uri" select="APPLY/CONST/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(APPLY/child::*) - number($no_params)) = 3">
-      <m:apply helm:xref="{@id}">
-       <m:notin/>
-       <xsl:apply-templates select="*[2]/*[3+$no_params]" mode="noannot"/>
-  <!-- <xsl:apply-templates select="*[2]/*[2+$no_params]" mode="noannot"/> -->
-       <xsl:apply-templates select="*[2]/*[2+$no_params]" mode="set"/>  
-      </m:apply>
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-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<!-- EMPTY SET -->
-
-<xsl:template match="APPLY[MUTIND[attribute::uri='cic:/coq/SETS/Ensembles/Ensembles/Empty_set.ind']]" mode="pure">
-    <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="/cicxml/@uri"/>
-      <xsl:with-param name="second_uri" select="MUTIND/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($no_params)) = 1">
-      <m:set definitionURL="{MUTIND/@uri}" helm:xref="{@id}">
-      </m:set>
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-     <xsl:when test="(count(child::*) - number($no_params)) = 2">
-      <m:apply helm:xref="{@id}">
-       <m:in definitionURL="cic:/coq/SETS/Ensembles/Ensembles/In.con"/>
-       <xsl:apply-templates select="*[2+$no_params]" mode="noannot"/>
-       <m:set definitionURL="{MUTIND/@uri}" helm:xref="{@id}">
-       </m:set>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<!-- SINGLETON -->
-
-<xsl:template match="APPLY[MUTIND[attribute::uri='cic:/coq/SETS/Ensembles/Ensembles/Singleton.ind']]" mode="pure">
-    <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="/cicxml/@uri"/>
-      <xsl:with-param name="second_uri" select="MUTIND/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($no_params)) = 2">
-      <m:set definitionURL="{MUTIND/@uri}" helm:xref="{@id}">
-       <xsl:apply-templates select="*[2+$no_params]" mode="noannot"/>
-      </m:set>
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-     <xsl:when test="(count(child::*) - number($no_params)) = 3">
-      <m:apply helm:xref="{@id}">
-       <m:in definitionURL="cic:/coq/SETS/Ensembles/Ensembles/In.con"/>
-       <xsl:apply-templates select="*[3+$no_params]" mode="noannot"/>
-       <m:set definitionURL="{MUTIND/@uri}">
-        <xsl:apply-templates select="*[2+$no_params]" mode="noannot"/>
-       </m:set>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<!-- COUPLE -->
-
-<xsl:template match="APPLY[MUTIND[attribute::uri='cic:/coq/SETS/Ensembles/Ensembles/Couple.ind']]" mode="pure">
-    <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="/cicxml/@uri"/>
-      <xsl:with-param name="second_uri" select="MUTIND/@uri"/>
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-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($no_params)) = 3">
-      <m:set definitionURL="{MUTIND/@uri}" helm:xref="{@id}">
-       <xsl:apply-templates select="*[2+$no_params]" mode="noannot"/>
-       <xsl:apply-templates select="*[3+$no_params]" mode="noannot"/>
-      </m:set>
-     </xsl:when>   
-     <xsl:when test="(count(child::*) - number($no_params)) = 4">
-      <m:apply helm:xref="{@id}">
-       <m:in definitionURL="cic:/coq/SETS/Ensembles/Ensembles/In.con"/>
-       <xsl:apply-templates select="*[4+$no_params]" mode="noannot"/>
-       <m:set definitionURL="{MUTIND/@uri}">
-        <xsl:apply-templates select="*[2+$no_params]" mode="noannot"/>
-        <xsl:apply-templates select="*[3+$no_params]" mode="noannot"/>
-       </m:set>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<!-- TRIPLE -->
-
-<xsl:template match="APPLY[MUTIND[attribute::uri='cic:/coq/SETS/Ensembles/Ensembles/Triple.ind'] and (count(child::*) = 5)]" mode="pure">
-    <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="/cicxml/@uri"/>
-      <xsl:with-param name="second_uri" select="MUTIND/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($no_params)) = 4">
-      <m:set definitionURL="{MUTIND/@uri}" helm:xref="{@id}">
-       <xsl:apply-templates select="*[2+$no_params]" mode="noannot"/>
-       <xsl:apply-templates select="*[3+$no_params]" mode="noannot"/>
-       <xsl:apply-templates select="*[4+$no_params]" mode="noannot"/>
-      </m:set>
-     </xsl:when>   
-     <xsl:when test="(count(child::*) - number($no_params)) = 5">
-      <m:apply helm:xref="{@id}">
-       <m:in definitionURL="cic:/coq/SETS/Ensembles/Ensembles/In.con"/>
-       <xsl:apply-templates select="*[5+$no_params]" mode="noannot"/>
-       <m:set definitionURL="{MUTIND/@uri}">
-        <xsl:apply-templates select="*[2+$no_params]" mode="noannot"/>
-        <xsl:apply-templates select="*[3+$no_params]" mode="noannot"/>
-        <xsl:apply-templates select="*[4+$no_params]" mode="noannot"/>
-       </m:set>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<!-- INTERSECTION -->
-
-<xsl:template match="APPLY[MUTIND[attribute::uri='cic:/coq/SETS/Ensembles/Ensembles/Intersection.ind']]" mode="pure">
-    <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="/cicxml/@uri"/>
-      <xsl:with-param name="second_uri" select="MUTIND/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($no_params)) = 3">
-      <m:apply helm:xref="{@id}">
-       <m:intersect definitionURL="{MUTIND/@uri}" helm:xref="{MUTIND/@id}"/>
-       <xsl:apply-templates select="*[2+$no_params]" mode="set"/>
-       <xsl:apply-templates select="*[3+$no_params]" mode="set"/>
-      </m:apply>
-     </xsl:when>
-     <xsl:when test="(count(child::*) - number($no_params)) = 4">
-      <m:apply helm:xref="{@id}">
-       <m:in/>
-       <xsl:apply-templates select="*[4+$no_params]" mode="noannot"/>
-       <m:apply>
-        <m:intersect definitionURL="{MUTIND/@uri}" helm:xref="{MUTIND/@id}"/>
-        <xsl:apply-templates select="*[2+$no_params]" mode="set"/>
-        <xsl:apply-templates select="*[3+$no_params]" mode="set"/>
-       </m:apply>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-
-<!-- UNION -->
-
-<xsl:template match="APPLY[MUTIND[attribute::uri='cic:/coq/SETS/Ensembles/Ensembles/Union.ind']]" mode="pure">
-    <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="/cicxml/@uri"/>
-      <xsl:with-param name="second_uri" select="MUTIND/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($no_params)) = 3">
-      <m:apply helm:xref="{@id}">
-       <m:union definitionURL="{MUTIND/@uri}" helm:xref="{MUTIND/@id}"/>
-       <xsl:apply-templates select="*[2+$no_params]" mode="set"/>
-       <xsl:apply-templates select="*[3+$no_params]" mode="set"/>
-      </m:apply>
-     </xsl:when>
-     <xsl:when test="(count(child::*) - number($no_params)) = 4">
-      <m:apply helm:xref="{@id}">
-       <m:in/>
-       <xsl:apply-templates select="*[4+$no_params]" mode="noannot"/>
-       <m:apply>
-        <m:union definitionURL="{MUTIND/@uri}" helm:xref="{MUTIND/@id}"/>
-        <xsl:apply-templates select="*[2+$no_params]" mode="set"/>
-        <xsl:apply-templates select="*[3+$no_params]" mode="set"/>
-       </m:apply>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<!-- INCLUDED -->
-
-<xsl:template match="APPLY[CONST[attribute::uri='cic:/coq/SETS/Ensembles/Ensembles/Included.con']]" mode="pure">
-    <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="/cicxml/@uri"/>
-      <xsl:with-param name="second_uri" select="CONST/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($no_params)) = 3">
-      <m:apply helm:xref="{@id}">
-       <m:subset definitionURL="{CONST/@uri}" helm:xref="{CONST/@id}"/>
-       <xsl:apply-templates select="*[2+$no_params]" mode="set"/>
-       <xsl:apply-templates select="*[3+$no_params]" mode="set"/>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<!-- STRICTLY INCLUDED -->
-
-<xsl:template match="APPLY[CONST[attribute::uri='cic:/coq/SETS/Ensembles/Ensembles/Strict_Included.con']]" mode="pure">
-    <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="/cicxml/@uri"/>
-      <xsl:with-param name="second_uri" select="CONST/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($no_params)) = 3">
-      <m:apply helm:xref="{@id}">
-       <m:prsubset definitionURL="{CONST/@uri}" helm:xref="{CONST/@id}"/>
-       <xsl:apply-templates select="*[2+$no_params]" mode="set"/>
-       <xsl:apply-templates select="*[3+$no_params]" mode="set"/>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<!-- SET-DIFF -->
-
-<xsl:template match="APPLY[CONST[attribute::uri='cic:/coq/SETS/Ensembles/Ensembles/Setminus.con']]" mode="pure">
-    <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="/cicxml/@uri"/>
-      <xsl:with-param name="second_uri" select="CONST/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($no_params)) = 3">
-      <m:apply helm:xref="{@id}">
-       <m:setdiff definitionURL="{CONST/@uri}" helm:xref="{CONST/@id}"/>
-       <xsl:apply-templates select="*[2+$no_params]" mode="set"/>
-       <xsl:apply-templates select="*[3+$no_params]" mode="set"/>
-      </m:apply>
-     </xsl:when>
-     <xsl:when test="(count(child::*) - number($no_params)) = 4">
-      <m:apply helm:xref="{@id}">
-       <m:in/>
-       <xsl:apply-templates select="*[4+$no_params]" mode="noannot"/>
-       <m:apply>
-        <m:setdiff definitionURL="{CONST/@uri}" helm:xref="{CONST/@id}"/>
-        <xsl:apply-templates select="*[2+$no_params]" mode="set"/>
-        <xsl:apply-templates select="*[3+$no_params]" mode="set"/>
-       </m:apply>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<!-- ADD-ELEM -->
-
-<xsl:template match="APPLY[CONST[attribute::uri='cic:/coq/SETS/Ensembles/Ensembles/Add.con']]" mode="pure">
-    <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="/cicxml/@uri"/>
-      <xsl:with-param name="second_uri" select="CONST/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($no_params)) = 3">
-      <m:apply helm:xref="{@id}">
-       <m:union definitionURL="{CONST/@uri}" helm:xref="{CONST/@id}"/>
-       <xsl:apply-templates select="*[2+$no_params]" mode="set"/>
-       <m:set>
-        <xsl:apply-templates select="*[3+$no_params]" mode="noannot"/>
-       </m:set>
-      </m:apply>
-     </xsl:when>
-     <xsl:when test="(count(child::*) - number($no_params)) = 4">
-      <m:apply helm:xref="{@id}">
-       <m:in/>
-       <xsl:apply-templates select="*[4+$no_params]" mode="noannot"/>
-       <m:apply>
-        <m:union definitionURL="{CONST/@uri}" helm:xref="{CONST/@id}"/>
-        <xsl:apply-templates select="*[2+$no_params]" mode="set"/>
-        <m:set>
-         <xsl:apply-templates select="*[3+$no_params]" mode="noannot"/>
-        </m:set>
-       </m:apply>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<!-- SUBTRACT-ELEM -->
-
-<xsl:template match="APPLY[CONST[attribute::uri='cic:/coq/SETS/Ensembles/Ensembles/Subtract.con']]" mode="pure">
-    <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="/cicxml/@uri"/>
-      <xsl:with-param name="second_uri" select="CONST/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($no_params)) = 3">
-      <m:apply helm:xref="{@id}">
-       <m:setdiff definitionURL="{CONST/@uri}" helm:xref="{CONST/@id}"/>
-       <xsl:apply-templates select="*[2+$no_params]" mode="set"/>
-       <m:set>
-        <xsl:apply-templates select="*[3+$no_params]" mode="noannot"/>
-       </m:set>
-      </m:apply>
-     </xsl:when>
-     <xsl:when test="(count(child::*) - number($no_params)) = 4">
-      <m:apply helm:xref="{@id}">
-       <m:in/>
-       <xsl:apply-templates select="*[4+$no_params]" mode="noannot"/>
-       <m:apply>
-        <m:setdiff definitionURL="{CONST/@uri}" helm:xref="{CONST/@id}"/>
-        <xsl:apply-templates select="*[2+$no_params]" mode="set"/>
-        <m:set>
-         <xsl:apply-templates select="*[3+$no_params]" mode="noannot"/>
-        </m:set>
-       </m:apply>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<!-- CARD -->
-
-<xsl:template match="APPLY[MUTIND[attribute::uri='cic:/coq/SETS/Finite_sets/Ensembles_finis/cardinal.ind']]" mode="pure">
-    <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="/cicxml/@uri"/>
-      <xsl:with-param name="second_uri" select="MUTIND/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($no_params)) = 3">
-      <m:apply helm:xref="{@id}">
-       <m:eq/>
-       <m:apply>
-        <m:card definitionURL="{MUTIND/@uri}" helm:xref="{MUTIND/@id}"/>
-        <xsl:apply-templates select="*[2+$no_params]" mode="set"/>
-       </m:apply>
-       <xsl:apply-templates select="*[3+$no_params]" mode="noannot"/>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-</xsl:stylesheet>
diff --git a/helm/style/style_prima_del_linguaggio_naturale/annotatedcont.xsl b/helm/style/style_prima_del_linguaggio_naturale/annotatedcont.xsl
deleted file mode 100644
index e97d08f2b..000000000
--- a/helm/style/style_prima_del_linguaggio_naturale/annotatedcont.xsl
+++ /dev/null
@@ -1,73 +0,0 @@
-<?xml version="1.0"?>
-
-<!--***********************************************************************--> 
-<!-- XSLT version 0.1 of annotated MathML content to MathML presentation:  -->
-<!-- First draft: March 29 2000, Claudio Sacerdoti Coen, Irene Schena      -->
-<!--***********************************************************************--> 
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML"
-                              xmlns:helm="http://www.cs.unibo.it/helm">
-
-<xsl:import href="objcontent.xsl"/>
-
-<xsl:key name="id" use="@id" match="LAMBDA|PROD|CAST|REL|SORT|APPLY|VAR|META|CONST|MUTIND|MUTCONSTRUCT|MUTCASE|FIX|COFIX|Definition|Axiom|CurrentProof|InductiveDefinition|Variable"/>
-
-<xsl:key name="annid" use="@of" match="Annotation"/>
-
-<xsl:template match="Definition|Axiom|CurrentProof|InductiveDefinition|Variable">
-    <xsl:choose>
-    <xsl:when test="key('annid',@id)">
-     <annotation helm:xref="{@id}">
-      <xsl:apply-templates select="key('annid',@id)"/>
-     </annotation>
-    </xsl:when>
-    <xsl:otherwise>
-     <xsl:apply-templates select="." mode="noannot"/>
-    </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<xsl:template match="LAMBDA|PROD|CAST|REL|SORT|APPLY|VAR|META|CONST|MUTIND|MUTCONSTRUCT|MUTCASE|FIX|COFIX">
-    <xsl:choose>
-    <xsl:when test="key('annid',@id)">
-     <annotation helm:xref="{@id}">
-      <xsl:apply-templates select="key('annid',@id)"/>
-     </annotation>
-    </xsl:when>
-    <xsl:otherwise>
-     <m:math>
-      <xsl:apply-templates select="." mode="noannot"/>
-     </m:math>
-    </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<xsl:template match="node">
- <xsl:variable name="id" select="@id"/>
- <xsl:apply-templates select="key('id',$id)"/>
-</xsl:template>
-
-<xsl:template match="attribute">
- <xsl:variable name="id" select="@id"/>
- <xsl:variable name="name" select="@name"/>
- <xsl:variable name="child" select="@child"/>
- <xsl:variable name="grandchild" select="@grandchild"/>
- <xsl:choose>
-  <xsl:when test="$child">
-   <xsl:choose>
-    <xsl:when test="$grandchild">
-     <xsl:value-of select="key('id',$id)/*[position() = $child]/*[position() = $grandchild]/attribute::*[name() = $name]"/>
-    </xsl:when>
-    <xsl:otherwise>
-     <xsl:value-of select="key('id',$id)/*[position() = $child]/attribute::*[name() = $name]"/>
-    </xsl:otherwise>
-   </xsl:choose>
-  </xsl:when>
-  <xsl:otherwise>
-   <xsl:value-of select="key('id',$id)/attribute::*[name() = $name]"/>
-  </xsl:otherwise>
- </xsl:choose>
-</xsl:template>
-
-</xsl:stylesheet>
diff --git a/helm/style/style_prima_del_linguaggio_naturale/annotatedcont.xsl.csc b/helm/style/style_prima_del_linguaggio_naturale/annotatedcont.xsl.csc
deleted file mode 100644
index 3508d6be4..000000000
--- a/helm/style/style_prima_del_linguaggio_naturale/annotatedcont.xsl.csc
+++ /dev/null
@@ -1,66 +0,0 @@
-<?xml version="1.0"?>
-
-<!--***********************************************************************--> 
-<!-- XSLT version 0.1 of annotated MathML content to MathML presentation:  -->
-<!-- First draft: March 29 2000, Claudio Sacerdoti Coen, Irene Schena      -->
-<!--***********************************************************************--> 
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML">
-
-<xsl:import href="objcontent.xsl"/>
-
-<xsl:template match="Definition|Axiom|CurrentProof|InductiveDefinition|Variable">
-    <xsl:choose>
-    <xsl:when test="'annotation' != name(*[1])">
-     <xsl:apply-templates select="." mode="noannot"/>
-    </xsl:when>
-    <xsl:otherwise>
-     <annotation>
-      <xsl:apply-templates select="annotation"/>
-     </annotation>
-    </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<xsl:template match="LAMBDA|PROD|CAST|REL|SORT|APPLY|VAR|META|CONST|MUTIND|MUTCONSTRUCT|MUTCASE|FIX|COFIX">
-  <xsl:param name="backpointer" select="''"/>
-    <xsl:choose>
-    <xsl:when test="'Annotation' != name(*[1])">
-     <m:math>
-      <xsl:apply-templates select="." mode="noannot">
-       <xsl:with-param name="backpointer" select="$backpointer"/>
-      </xsl:apply-templates>
-     </m:math>
-    </xsl:when>
-    <xsl:otherwise>
-     <annotation>
-      <xsl:apply-templates select="Annotation"/>
-     </annotation>
-    </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<!-- DA MODIFICARE PER GESTIRE I RIFERIMENTI A SOTTOANNOTAZIONI O NODI MATH -->
-
-<xsl:template match="nephew">
- <xsl:variable name="select" select="@no"/>
- <xsl:apply-templates select="../../*[2]/*[number($select)]"/>
-</xsl:template>
-
-<xsl:template match="brother">
- <xsl:variable name="select" select="@no"/>
- <xsl:apply-templates select="../../*[number($select) + 1]"/>
-</xsl:template>
-
-<xsl:template match="name">
- <xsl:value-of select="../../*[2]/@name"/>
-</xsl:template>
-
-<xsl:template match="nephew-name">
- <xsl:variable name="select" select="@no"/>
- <xsl:value-of select="../../*[2]/*[number($select)]/@name"/>
-</xsl:template>
-
-</xsl:stylesheet>
-
diff --git a/helm/style/style_prima_del_linguaggio_naturale/annotatedpres.xsl b/helm/style/style_prima_del_linguaggio_naturale/annotatedpres.xsl
deleted file mode 100644
index 511f915f5..000000000
--- a/helm/style/style_prima_del_linguaggio_naturale/annotatedpres.xsl
+++ /dev/null
@@ -1,34 +0,0 @@
-<?xml version="1.0"?>
-
-<!--***********************************************************************--> 
-<!-- XSLT version 0.1 of annotated MathML content to MathML presentation:  -->
-<!-- First draft: March 29 2000, Claudio Sacerdoti Coen, Irene Schena      -->
-<!--***********************************************************************--> 
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML"
-                              xmlns:helm="http://www.cs.unibo.it/helm">
-
-<xsl:import href="mmlextension.xsl"/>
-
-<!-- ANNOTATION -->
-
-<xsl:template match="annotation">
-    <xsl:choose>
-    <xsl:when test=". = /">
-      <m:math><m:mrow helm:xref="{@helm:xref}"><xsl:apply-templates/></m:mrow></m:math>
-    </xsl:when>
-    <xsl:otherwise>
-     <m:mrow helm:xref="{@helm:xref}"><xsl:apply-templates/></m:mrow>
-    </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<xsl:template match="text()">
- <xsl:variable name="text" select="normalize-space(.)"/>
- <xsl:if test="$text != ''">
-  <m:mtext><xsl:value-of select="$text"/></m:mtext>
- </xsl:if>
-</xsl:template>
-
-</xsl:stylesheet> 
diff --git a/helm/style/style_prima_del_linguaggio_naturale/basic.xsl b/helm/style/style_prima_del_linguaggio_naturale/basic.xsl
deleted file mode 100644
index 3f5422a72..000000000
--- a/helm/style/style_prima_del_linguaggio_naturale/basic.xsl
+++ /dev/null
@@ -1,253 +0,0 @@
-<?xml version="1.0"?>
-
-<!--******************************************************************--> 
-<!-- Basic Logic                                                      -->
-<!-- First draft: April 3 2000                                        -->
-<!-- HELM Group: Asperti, Padovani, Sacerdoti, Schena                 -->
-<!--******************************************************************-->
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML"
-                              xmlns:helm="http://www.cs.unibo.it/helm">
-
-<!--******************************************************************-->
-<!-- Variable containing the absolute path of the CIC file            -->
-<!--******************************************************************-->
-
-<xsl:variable name="absPath">http://localhost:8081/get?url=</xsl:variable>
-
-<!-- ************************* LOGIC *********************************-->
-
-<!-- AND -->
-
-<xsl:template match="APPLY[MUTIND[attribute::uri='cic:/coq/INIT/Logic/Conjunction/and.ind'] and (count(child::*) = 3)]" mode="noannot">
-    <m:apply helm:xref="{@id}">
-    <m:and definitionURL="{MUTIND/@uri}" helm:xref="{MUTIND/@id}"/>
-     <xsl:apply-templates select="*[2]" mode="noannot"/>
-     <xsl:apply-templates select="*[3]" mode="noannot"/>
-    </m:apply>
-</xsl:template>
-
-<!-- OR -->
-
-<xsl:template match="APPLY[MUTIND[attribute::uri='cic:/coq/INIT/Logic/Disjunction/or.ind'] and (count(child::*) = 3)]" mode="noannot">
-    <m:apply helm:xref="{@id}">
-    <m:or definitionURL="{MUTIND/@uri}" helm:xref="{MUTIND/@id}"/>
-     <xsl:apply-templates select="*[2]" mode="noannot"/>
-     <xsl:apply-templates select="*[3]" mode="noannot"/>
-    </m:apply>
-</xsl:template>
-
-<!-- NOT -->
-
-<xsl:template match="APPLY[CONST[attribute::uri='cic:/coq/INIT/Logic/not.con'] and (count(child::*) = 2)]" mode="noannot">
-    <m:apply helm:xref="{@id}">
-    <m:not definitionURL="{CONST/@uri}" helm:xref="{MUTIND/@id}"/>
-     <xsl:apply-templates select="*[2]" mode="noannot"/>
-    </m:apply>
-</xsl:template>
-
-<!-- IFF -->
-<!--
-<xsl:template match="APPLY[CONST[attribute::uri='cic:/coq/INIT/Logic/Equivalence/iff.ind'] and (count(child::*) = 3)]" mode="noannot">
-    <m:apply helm:xref="{@id}">
-    <m:iff definitionURL="{CONST/@uri}" helm:xref="{CONST/@id}"/>
-     <xsl:apply-templates select="*[2]" mode="noannot"/>
-     <xsl:apply-templates select="*[3]" mode="noannot"/>
-    </m:apply>
-</xsl:template>
--->
-
-<!-- EXISTS -->
-
-<xsl:template match="APPLY[MUTIND[attribute::uri='cic:/coq/INIT/Logic/First_order_quantifiers/ex.ind' or attribute::uri='cic:/coq/INIT/Logic_Type/exT.ind'] and (count(child::*) = 3)]" mode="noannot">
-    <m:apply helm:xref="{@id}">
-     <m:exists definitionURL="{MUTIND/@uri}" helm:xref="{MUTIND/@id}"/>
-     <xsl:choose>
-      <xsl:when test="name(*[3]) = 'LAMBDA'">
-       <m:bvar>
-        <m:ci><xsl:value-of select="LAMBDA/target/@binder"/></m:ci>
-       </m:bvar>
-       <xsl:apply-templates select="LAMBDA/target" mode="noannot"/>
-      </xsl:when>
-      <xsl:otherwise>
-       <m:bvar>
-        <m:ci>$x</m:ci>
-       </m:bvar>
-       <m:apply>
-        <m:csymbol>app</m:csymbol>
-        <xsl:apply-templates select="*[3]" mode="noannot"/>
-        <m:ci>$x</m:ci>
-       </m:apply>
-      </xsl:otherwise>
-     </xsl:choose>
-    </m:apply>
-</xsl:template>
-
-<xsl:template match="APPLY[MUTIND[attribute::uri='cic:/coq/INIT/Logic/First_order_quantifiers/ex2.ind' or attribute::uri='cic:/coq/INIT/Logic_Type/exT2.ind'] and (count(child::*) = 4)]" mode="noannot">
-    <m:apply helm:xref="{@id}">
-    <m:exists definitionURL="{MUTIND/@uri}" helm:xref="{MUTIND/@id}"/>
-     <xsl:choose>
-      <xsl:when test="name(*[3]) = 'LAMBDA'">
-       <xsl:variable name="bvarname" select="*[3]/target/@binder"/>
-       <m:bvar>
-        <m:ci><xsl:value-of select="$bvarname"/></m:ci>
-       </m:bvar>
-       <m:condition>
-        <xsl:apply-templates select="LAMBDA[1]/target" mode="noannot"/>
-       </m:condition>
-       <xsl:choose>
-        <xsl:when test="(name(*[4]) = 'LAMBDA') and 
-           ($bvarname = *[4]/target/@binder)">
-         <xsl:apply-templates select="LAMBDA[2]/target" mode="noannot"/>
-        </xsl:when>
-        <xsl:otherwise>
-         <m:apply>
-          <m:csymbol>app</m:csymbol>
-          <xsl:apply-templates select="*[4]" mode="noannot"/>
-          <m:ci><xsl:value-of select="$bvarname"/></m:ci>
-         </m:apply>
-        </xsl:otherwise>
-       </xsl:choose>
-      </xsl:when>
-      <xsl:otherwise>
-       <xsl:choose>
-        <xsl:when test="name(*[4]) = 'LAMBDA'">
-         <xsl:variable name="bvarname" select="*[4]/target/@binder"/>
-         <m:bvar>
-          <m:ci><xsl:value-of select="$bvarname"/></m:ci>
-         </m:bvar>
-         <m:condition>
-          <m:apply>
-           <m:csymbol>app</m:csymbol>
-           <xsl:apply-templates select="*[3]" mode="noannot"/>
-           <m:ci><xsl:value-of select="$bvarname"/></m:ci>
-          </m:apply>
-         </m:condition>
-         <xsl:apply-templates select="*[4]/target" mode="noannot"/>
-        </xsl:when>
-        <xsl:otherwise>
-         <m:bvar>
-          <m:ci>x</m:ci>
-         </m:bvar>
-         <m:condition>
-          <m:apply>
-           <m:csymbol>app</m:csymbol>
-           <xsl:apply-templates select="*[3]" mode="noannot"/>
-           <m:ci>x</m:ci>
-          </m:apply>
-         </m:condition>
-         <m:apply>
-          <m:csymbol>app</m:csymbol>
-          <xsl:apply-templates select="*[4]" mode="noannot"/>
-          <m:ci>x</m:ci>
-         </m:apply>
-        </xsl:otherwise>
-       </xsl:choose>
-      </xsl:otherwise>
-     </xsl:choose>
-    </m:apply>
-</xsl:template>
-
-<!-- EQUALITY -->
-
-<xsl:template match="APPLY[MUTIND[attribute::uri='cic:/coq/INIT/Logic/Equality/eq.ind'] and (count(child::*) = 4)]" mode="noannot">
-    <m:apply helm:xref="{@id}">
-    <m:eq definitionURL="{MUTIND/@uri}" helm:xref="{MUTIND/@id}"/>
-     <xsl:apply-templates select="*[3]" mode="noannot"/>
-     <xsl:apply-templates select="*[4]" mode="noannot"/>
-    </m:apply>
-</xsl:template>
-
-
-<!-- TYPE EQUALITY -->
-
-<xsl:template match="APPLY[MUTIND[attribute::uri='cic:/coq/INIT/Logic_Type/eqT.ind'] and (count(child::*) = 4)]" mode="noannot">
-    <m:apply helm:xref="{@id}">
-    <m:eq definitionURL="{MUTIND/@uri}" helm:xref="{MUTIND/@id}"/>
-     <xsl:apply-templates select="*[3]" mode="noannot"/>
-     <xsl:apply-templates select="*[4]" mode="noannot"/>
-    </m:apply>
-</xsl:template>
-
-<!-- NOT-EQ -->
-<!-- NOT and EQ have no parameters -->
-<xsl:template match="APPLY[CONST[attribute::uri='cic:/coq/INIT/Logic/not.con']
-and (count(child::*) = 2) and APPLY[MUTIND[attribute::uri='cic:/coq/INIT/Logic/Equality/eq.ind']]]" mode="noannot">
-    <xsl:choose>
-     <xsl:when test="count(APPLY/child::*) = 4">
-      <m:apply helm:xref="{@id}">
-       <m:neq/>
-       <xsl:apply-templates select="*[2]/*[3]" mode="noannot"/>
-       <xsl:apply-templates select="*[2]/*[4]" mode="set"/>  
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<!-- NOT-EQT -->
-<xsl:template match="APPLY[CONST[attribute::uri='cic:/coq/INIT/Logic/not.con']
-and (count(child::*) = 2) and APPLY[MUTIND[attribute::uri='cic:/coq/INIT/Logic_Type/eqT.ind']]]" mode="noannot">
-    <xsl:choose>
-     <xsl:when test="count(APPLY/child::*) = 4">
-      <m:apply helm:xref="{@id}">
-       <m:neq/>
-       <xsl:apply-templates select="*[2]/*[3]" mode="noannot"/>
-       <xsl:apply-templates select="*[2]/*[4]" mode="set"/>  
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<!-- ************************ DATATYPES ******************************* -->
-
-<!-- no datatypes in MathML content -->
-
-
-<!-- *************************** PEANO ********************************* -->
-
-<xsl:template match="APPLY[MUTIND[attribute::uri='cic:/coq/INIT/Peano/le.ind'] and (count(child::*) = 3)]" mode="noannot">
-    <m:apply helm:xref="{@id}">
-    <m:leq definitionURL="{MUTIND/@uri}" helm:xref="{MUTIND/@id}"/>
-     <xsl:apply-templates select="*[2]" mode="noannot"/>
-     <xsl:apply-templates select="*[3]" mode="noannot"/>
-    </m:apply>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST[attribute::uri='cic:/coq/INIT/Peano/lt.con'] and (count(child::*) = 3)]" mode="noannot">
-    <m:apply helm:xref="{@id}">
-    <m:lt definitionURL="{CONST/@uri}" helm:xref="{CONST/@id}"/>
-     <xsl:apply-templates select="*[2]" mode="noannot"/>
-     <xsl:apply-templates select="*[3]" mode="noannot"/>
-    </m:apply>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST[attribute::uri='cic:/coq/INIT/Peano/ge.con'] and (count(child::*) = 3)]" mode="noannot">
-    <m:apply helm:xref="{@id}">
-    <m:geq definitionURL="{CONST/@uri}" helm:xref="{CONST/@id}"/>
-     <xsl:apply-templates select="*[2]" mode="noannot"/>
-     <xsl:apply-templates select="*[3]" mode="noannot"/>
-    </m:apply>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST[attribute::uri='cic:/coq/INIT/Peano/gt.con'] and (count(child::*) = 3)]" mode="noannot">
-    <m:apply helm:xref="{@id}">
-    <m:gt definitionURL="{CONST/@uri}" helm:xref="{CONST/@id}"/>
-     <xsl:apply-templates select="*[2]" mode="noannot"/>
-     <xsl:apply-templates select="*[3]" mode="noannot"/>
-    </m:apply>
-</xsl:template>
-
-</xsl:stylesheet>
-
-
-
-
-
-
diff --git a/helm/style/style_prima_del_linguaggio_naturale/content.xsl b/helm/style/style_prima_del_linguaggio_naturale/content.xsl
deleted file mode 100644
index 7de998720..000000000
--- a/helm/style/style_prima_del_linguaggio_naturale/content.xsl
+++ /dev/null
@@ -1,215 +0,0 @@
-<?xml version="1.0"?>
-
-<!--******************************************************************--> 
-<!-- XSLT version 0.1 of CIC objects to MathML content:               -->
-<!-- First draft: February 14 2000, Andrea Asperti, Irene Schena      -->
-<!-- Revised: March 3 2000, Irene Schena                              -->
-<!-- Revised: March 10 2000, Irene Schena                             -->
-<!-- Revised: March 15 2000, Claudio Sacerdoti Coen, Irene Schena     -->
-<!--******************************************************************-->
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML"
-                              xmlns:helm="http://www.cs.unibo.it/helm">
-
-<xsl:include href="params.xsl"/>
-
-<!--<xsl:output
-           method="xml" 
-           version="1.0" 
-           encoding="ISO-8859-1" 
-           omit-xml-declaration="no"
-           standalone="no" 
-           doctype-public="http://www.w3.org/TR/REC-MathML" 
-           indent="yes"
-           media-type="text/mathml" /> -->
-
-<!-- DA FARE: 
-1)risolvere nella fase di pre-processing le uri relative, settando l'attributo
-definitionURL dell'oggetto corrispondente (alcuni punteranno a nulla! -quelli 
-che non hanno il file di definizione corrispondente-); [le uri assolute hanno
-la forma cic:/.../ in definitionURL e questo schema di uri verra' risolto da
-Amaya o da chi di dovere in /really_very_local/helm/PARSER/example/.../]
-2)aggiungere nei file xml gli ID, affinche' nello stylesheet si setti
-l'attributo xref di ogni oggetto per puntare (tramite ID) al suo corrispondente
-della rappresentazione interna. 
--->
-
-<!--******************************************************************-->
-<!-- Variable containing the absolute path of the CIC file            -->
-<!--******************************************************************-->
-
-<xsl:variable name="absPath">http://localhost:8081/get?url=</xsl:variable>
-
-<!-- CIC TERMS -->
-
-<xsl:template match="LAMBDA" mode="noannot">
-    <m:lambda helm:xref="{@id}">
-     <m:bvar>
-      <m:ci>
-       <xsl:value-of select="target/@binder"/>
-      </m:ci>
-      <m:type>
-       <xsl:apply-templates select="source/*[1]" mode="noannot"/>
-      </m:type>
-     </m:bvar>
-     <xsl:apply-templates select="target/*[1]" mode="noannot"/>
-    </m:lambda>
-</xsl:template>
-
-<xsl:template match="PROD" mode="noannot">
-    <m:apply helm:xref="{@id}">
-     <xsl:choose>
-     <xsl:when test="string(target/@binder)= &quot;&quot;">
-      <m:csymbol>arrow</m:csymbol>
-      <xsl:apply-templates select="source/*[1]" mode="noannot"/>
-     </xsl:when>
-     <xsl:otherwise>
-      <m:csymbol>prod</m:csymbol>
-       <m:bvar>
-        <m:ci>
-         <xsl:value-of select="target/@binder"/>
-        </m:ci>
-        <m:type>
-         <xsl:apply-templates select="source/*[1]" mode="noannot"/>
-        </m:type>
-       </m:bvar>
-     </xsl:otherwise>
-     </xsl:choose>
-     <xsl:apply-templates select="target/*[1]" mode="noannot"/>
-    </m:apply>
-</xsl:template>
-
-<xsl:template match="CAST" mode="noannot">
-    <m:apply helm:xref="{@id}">
-     <m:csymbol>cast</m:csymbol>
-     <xsl:apply-templates mode="noannot" select="*/*"/>
-    </m:apply>
-</xsl:template>
-
-<xsl:template match="REL" mode="noannot">
-    <m:ci helm:xref="{@id}">
-     <xsl:value-of select="@binder"/>
-    </m:ci>
-</xsl:template>
-
-<xsl:template match="SORT" mode="noannot">
-    <m:apply helm:xref="{@id}">
-     <m:csymbol>
-      <xsl:value-of select="@value"/>
-     </m:csymbol>
-    </m:apply>
-</xsl:template>
-
-<xsl:template match="APPLY" mode="noannot">
-    <m:apply helm:xref="{@id}">
-    <m:csymbol>app</m:csymbol>
-     <xsl:apply-templates mode="noannot" select="*"/>
-    </m:apply>
-</xsl:template>
-
-<xsl:template match="VAR" mode="noannot">
-    <m:ci helm:xref="{@id}">
-     <xsl:value-of select="substring-after(@relUri,&quot;,&quot;)"/>
-    </m:ci>
-</xsl:template>
-
-<xsl:template match="META" mode="noannot">
-    <m:ci helm:xref="{@id}">
-     <xsl:value-of select="@no"/>
-    </m:ci>
-</xsl:template>
-
-<xsl:template match="CONST" mode="noannot">
-    <m:ci definitionURL="{@uri}" helm:xref="{@id}">
-     <xsl:call-template name="name_of_uri">
-      <xsl:with-param name="uri" select="@uri"/>
-     </xsl:call-template>
-     <!-- <xsl:value-of select="document(concat(string($absPath),@uri))/*/@name"/> -->
-    </m:ci>
-</xsl:template>
-
-<xsl:template match="MUTIND" mode="noannot">
-    <m:ci definitionURL="{@uri}" helm:xref="{@id}">
-     <xsl:variable name="index"><xsl:value-of select="@noType"/></xsl:variable>
-     <xsl:value-of select="document(concat(string($absPath),@uri))/InductiveDefinition/InductiveType[position()=number($index)+1]/@name"/>
-    </m:ci>
-</xsl:template>
-
-<xsl:template match="MUTCONSTRUCT" mode="noannot">
-    <m:ci definitionURL="{@uri}" helm:xref="{@id}">
-     <xsl:variable name="Tindex"><xsl:value-of select="@noType"/></xsl:variable>
-     <xsl:variable name="Cindex"><xsl:value-of select="@noConstr"/></xsl:variable>
-     <xsl:value-of select="document(concat(string($absPath),@uri))/InductiveDefinition/InductiveType[position()=number($Tindex)+1]/Constructor[position()=number($Cindex)]/@name"/>
-    </m:ci>
-</xsl:template>
-
-<xsl:template match="MUTCASE" mode="noannot">
-    <xsl:variable name="Tindex"><xsl:value-of select="@noType"/></xsl:variable>
-    <xsl:variable name="Turi"><xsl:value-of select="@uriType"/></xsl:variable>
-    <m:apply helm:xref="{@id}">
-     <m:csymbol>mutcase</m:csymbol>
-     <xsl:apply-templates select="patternsType/*[1]" mode="noannot"/>
-     <xsl:apply-templates select="inductiveTerm/*[1]" mode="noannot"/>
-     <xsl:variable name="nop"><xsl:value-of select="document(concat(string($absPath),$Turi))/InductiveDefinition/@noParams"/></xsl:variable>
-     <xsl:for-each select="pattern">
-      <xsl:variable name="pos" select="position()"/>
-      <xsl:variable name="nopar"><xsl:apply-templates select="document(concat(string($absPath),$Turi))/InductiveDefinition/InductiveType[position()=number($Tindex)+1]/Constructor[position()=number($pos)]/*[1]" mode="counting"><xsl:with-param name="noparams" select="$nop"/></xsl:apply-templates></xsl:variable>
-      <xsl:choose>
-      <xsl:when test="$nopar = 0">
-       <m:ci>
-        <xsl:value-of select="document(concat(string($absPath),$Turi))/InductiveDefinition/InductiveType[position()=number($Tindex)+1]/Constructor[position()=number($pos)]/@name"/>
-       </m:ci>
-      </xsl:when>
-      <xsl:otherwise>
-       <m:apply>
-        <m:csymbol>app</m:csymbol>
-        <m:ci>
-         <xsl:value-of select="document(concat(string($absPath),$Turi))/InductiveDefinition/InductiveType[position()=number($Tindex)+1]/Constructor[position()=number($pos)]/@name"/>
-        </m:ci>
-        <xsl:apply-templates select="./*[1]" mode="abstparams"><xsl:with-param name="noparams" select="$nopar"/><xsl:with-param name="binder">LAMBDA</xsl:with-param></xsl:apply-templates>
-        </m:apply>
-       </xsl:otherwise>
-       </xsl:choose>
-      <xsl:apply-templates select="./*[1]" mode="abstparams"><xsl:with-param name="noparams" select="$nopar"/><xsl:with-param name="target" select="1"/><xsl:with-param name="binder">LAMBDA</xsl:with-param></xsl:apply-templates>
-     </xsl:for-each> 
-    </m:apply>
-</xsl:template>
-
-<xsl:template match="FIX" mode="noannot">
-    <m:apply helm:xref="{@id}">
-     <xsl:variable name="findex"><xsl:value-of select="@noFun"/></xsl:variable>
-     <m:csymbol>fix</m:csymbol>
-     <m:ci><xsl:value-of select="FixFunction[position()=number($findex)+1]/@name"/></m:ci>
-     <xsl:apply-templates mode="noannot" select="*"/>
-    </m:apply>
-</xsl:template>
-
-<xsl:template match="COFIX" mode="noannot">
-   <m:apply helm:xref="{@id}">
-     <xsl:variable name="findex"><xsl:value-of select="@noFun"/></xsl:variable>
-     <m:csymbol>cofix</m:csymbol>
-     <m:ci><xsl:value-of select="CofixFunction[position()=number($findex)+1]/@name"/></m:ci>
-     <xsl:apply-templates mode="noannot" select="*"/>
-    </m:apply>
-</xsl:template>
-
-<!-- ELEMENTS OF CIC TERMS -->
-
-<xsl:template match="FixFunction" mode="noannot">
-    <m:bvar>
-     <m:ci><xsl:value-of select="@name"/></m:ci>
-     <m:type><xsl:apply-templates select="type/*[1]" mode="noannot"/></m:type>
-    </m:bvar> 
-    <xsl:apply-templates select="body/*[1]" mode="noannot"/>
-</xsl:template>
-
-<xsl:template match="CofixFunction" mode="noannot">
-    <m:bvar>
-     <m:ci><xsl:value-of select="@name"/></m:ci>
-     <m:type><xsl:apply-templates select="type/*[1]" mode="noannot"/></m:type>
-    </m:bvar> 
-    <xsl:apply-templates select="body/*[1]" mode="noannot"/>
-</xsl:template>
-
-</xsl:stylesheet>
diff --git a/helm/style/style_prima_del_linguaggio_naturale/content.xsl.csc b/helm/style/style_prima_del_linguaggio_naturale/content.xsl.csc
deleted file mode 100644
index 5f7c1e131..000000000
--- a/helm/style/style_prima_del_linguaggio_naturale/content.xsl.csc
+++ /dev/null
@@ -1,258 +0,0 @@
-<?xml version="1.0"?>
-
-<!--******************************************************************--> 
-<!-- XSLT version 0.1 of CIC objects to MathML content:               -->
-<!-- First draft: February 14 2000, Andrea Asperti, Irene Schena      -->
-<!-- Revised: March 3 2000, Irene Schena                              -->
-<!-- Revised: March 10 2000, Irene Schena                             -->
-<!-- Revised: March 15 2000, Claudio Sacerdoti Coen, Irene Schena     -->
-<!--******************************************************************-->
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML">
-
-<xsl:include href="params.xsl"/>
-
-<!--<xsl:output
-           method="xml" 
-           version="1.0" 
-           encoding="ISO-8859-1" 
-           omit-xml-declaration="no"
-           standalone="no" 
-           doctype-public="http://www.w3.org/TR/REC-MathML" 
-           indent="yes"
-           media-type="text/mathml" /> -->
-
-<!-- DA FARE: 
-1)risolvere nella fase di pre-processing le uri relative, settando l'attributo
-definitionURL dell'oggetto corrispondente (alcuni punteranno a nulla! -quelli 
-che non hanno il file di definizione corrispondente-); [le uri assolute hanno
-la forma cic:/.../ in definitionURL e questo schema di uri verra' risolto da
-Amaya o da chi di dovere in /really_very_local/helm/PARSER/example/.../]
-2)aggiungere nei file xml gli ID, affinche' nello stylesheet si setti
-l'attributo xref di ogni oggetto per puntare (tramite ID) al suo corrispondente
-della rappresentazione interna. 
--->
-
-<!--******************************************************************-->
-<!-- Variable containing the absolute path of the CIC file            -->
-<!--******************************************************************-->
-
-<xsl:variable name="absPath">http://localhost:8081/get?url=</xsl:variable>
-
-<!-- CIC TERMS -->
-
-<xsl:template match="LAMBDA" mode="noannot">
-  <xsl:param name="backpointer" select="''"/>
-    <m:lambda>
-     <m:bvar>
-      <m:ci>
-       [[<xsl:value-of select="$backpointer"/>]]
-       <xsl:value-of select="target/@binder"/>
-      </m:ci>
-      <m:type>
-       <xsl:apply-templates select="source/*[1]" mode="noannot">
-        <xsl:with-param name="backpointer" select="concat($backpointer,'/*[1]/*[1]')"/>
-       </xsl:apply-templates>
-      </m:type>
-     </m:bvar>
-     <xsl:apply-templates select="target/*[1]" mode="noannot">
-      <xsl:with-param name="backpointer" select="concat($backpointer,'/*[2]/*[1]')"/>
-     </xsl:apply-templates>
-    </m:lambda>
-</xsl:template>
-
-<xsl:template match="PROD" mode="noannot">
-  <xsl:param name="backpointer" select="''"/>
-    <m:apply>
-     <xsl:choose>
-     <xsl:when test="string(target/@binder)= &quot;&quot;">
-      <m:csymbol>arrow</m:csymbol>
-      <xsl:apply-templates select="source/*[1]" mode="noannot">
-       <xsl:with-param name="backpointer" select="concat($backpointer,'/*[1]/*[1]')"/>
-      </xsl:apply-templates>
-     </xsl:when>
-     <xsl:otherwise>
-      <m:csymbol>prod</m:csymbol>
-       <m:bvar>
-        <m:ci>
-         [[<xsl:value-of select="$backpointer"/>]]
-         <xsl:value-of select="target/@binder"/>
-        </m:ci>
-        <m:type>
-         <xsl:apply-templates select="source/*[1]" mode="noannot">
-          <xsl:with-param name="backpointer" select="concat($backpointer,'/*[1]/*[1]')"/>
-         </xsl:apply-templates>
-        </m:type>
-       </m:bvar>
-     </xsl:otherwise>
-     </xsl:choose>
-     <xsl:apply-templates select="target/*[1]" mode="noannot">
-      <xsl:with-param name="backpointer" select="concat($backpointer,'/*[2]/*[1]')"/>
-     </xsl:apply-templates>
-    </m:apply>
-</xsl:template>
-
-<xsl:template match="CAST" mode="noannot">
-  <xsl:param name="backpointer" select="''"/>
-    <m:apply>
-     <m:csymbol>cast</m:csymbol>
-     <xsl:apply-templates mode="noannot" select="*[1]/*[1]">
-      <xsl:with-param name="backpointer" select="concat($backpointer,'/*[1]/*[1]')"/>
-     </xsl:apply-templates>
-     <xsl:apply-templates mode="noannot" select="*[2]/*[1]">
-      <xsl:with-param name="backpointer" select="concat($backpointer,'/*[2]/*[1]')"/>
-     </xsl:apply-templates>
-    </m:apply>
-</xsl:template>
-
-<xsl:template match="REL" mode="noannot">
-  <xsl:param name="backpointer" select="''"/>
-    <m:ci>
-     [[<xsl:value-of select="$backpointer"/>]]
-     <xsl:value-of select="@binder"/>
-    </m:ci>
-</xsl:template>
-
-<xsl:template match="SORT" mode="noannot">
-  <xsl:param name="backpointer" select="''"/>
-    <m:apply>
-     <m:csymbol>
-      <xsl:value-of select="@value"/>
-     </m:csymbol>
-    </m:apply>
-</xsl:template>
-
-<xsl:template match="APPLY" mode="noannot">
-  <xsl:param name="backpointer" select="''"/>
-    <m:apply>
-    <m:csymbol>app</m:csymbol>
-     <xsl:for-each select="*">
-      <xsl:apply-templates mode="noannot" select=".">
-       <xsl:with-param name="backpointer" select="concat($backpointer,'/*[',position(),']')"/>
-      </xsl:apply-templates>
-     </xsl:for-each>
-    </m:apply>
-</xsl:template>
-
-<xsl:template match="VAR" mode="noannot">
-  <xsl:param name="backpointer" select="''"/>
-    <m:ci>
-     [[<xsl:value-of select="$backpointer"/>]]
-     <xsl:value-of select="substring-after(@relUri,&quot;,&quot;)"/>
-    </m:ci>
-</xsl:template>
-
-<xsl:template match="META" mode="noannot">
-  <xsl:param name="backpointer" select="''"/>
-    <m:ci>
-     [[<xsl:value-of select="$backpointer"/>]]
-     <xsl:value-of select="@no"/>
-    </m:ci>
-</xsl:template>
-
-<xsl:template match="CONST" mode="noannot">
-  <xsl:param name="backpointer" select="''"/>
-    <m:ci definitionURL="{@uri}">
-     [[<xsl:value-of select="$backpointer"/>]]
-     <xsl:call-template name="name_of_uri">
-      <xsl:with-param name="uri" select="@uri"/>
-     </xsl:call-template>
-     <!-- <xsl:value-of select="document(concat(string($absPath),@uri))/*/@name"/> -->
-    </m:ci>
-</xsl:template>
-
-<xsl:template match="MUTIND" mode="noannot">
-  <xsl:param name="backpointer" select="''"/>
-    <m:ci definitionURL="{@uri}">
-     <xsl:variable name="index"><xsl:value-of select="@noType"/></xsl:variable>
-     [[<xsl:value-of select="$backpointer"/>]]
-     <xsl:value-of select="document(concat(string($absPath),@uri))/InductiveDefinition/InductiveType[position()=number($index)+1]/@name"/>
-    </m:ci>
-</xsl:template>
-
-<xsl:template match="MUTCONSTRUCT" mode="noannot">
-  <xsl:param name="backpointer" select="''"/>
-    <m:ci definitionURL="{@uri}">
-     <xsl:variable name="Tindex"><xsl:value-of select="@noType"/></xsl:variable>
-     <xsl:variable name="Cindex"><xsl:value-of select="@noConstr"/></xsl:variable>
-     [[<xsl:value-of select="$backpointer"/>]]
-     <xsl:value-of select="document(concat(string($absPath),@uri))/InductiveDefinition/InductiveType[position()=number($Tindex)+1]/Constructor[position()=number($Cindex)]/@name"/>
-    </m:ci>
-</xsl:template>
-
-<xsl:template match="MUTCASE" mode="noannot">
-  <xsl:param name="backpointer" select="''"/>
-    <xsl:variable name="Tindex"><xsl:value-of select="@noType"/></xsl:variable>
-    <xsl:variable name="Turi"><xsl:value-of select="@uriType"/></xsl:variable>
-    <m:apply>
-     <m:csymbol>mutcase</m:csymbol>
-     <xsl:apply-templates select="patternsType/*[1]" mode="noannot">
-       <xsl:with-param name="backpointer" select="concat($backpointer,'/*[1]/*[1]')"/>
-     </xsl:apply-templates>
-     <xsl:apply-templates select="inductiveTerm/*[1]" mode="noannot">
-       <xsl:with-param name="backpointer" select="concat($backpointer,'/*[2]/*[1]')"/>
-     </xsl:apply-templates>
-     <xsl:variable name="nop"><xsl:value-of select="document(concat(string($absPath),$Turi))/InductiveDefinition/@noParams"/></xsl:variable>
-     <xsl:for-each select="pattern">
-      <xsl:variable name="pos" select="position()"/>
-      <xsl:variable name="nopar"><xsl:apply-templates select="document(concat(string($absPath),$Turi))/InductiveDefinition/InductiveType[position()=number($Tindex)+1]/Constructor[position()=number($pos)]/*[1]" mode="counting"><xsl:with-param name="noparams" select="$nop"/></xsl:apply-templates></xsl:variable>
-      <xsl:choose>
-      <xsl:when test="$nopar = 0">
-       <m:ci>
-        <xsl:value-of select="document(concat(string($absPath),$Turi))/InductiveDefinition/InductiveType[position()=number($Tindex)+1]/Constructor[position()=number($pos)]/@name"/>
-       </m:ci>
-      </xsl:when>
-      <xsl:otherwise>
-       <m:apply>
-        <m:csymbol>app</m:csymbol>
-        <m:ci>
-         <xsl:value-of select="document(concat(string($absPath),$Turi))/InductiveDefinition/InductiveType[position()=number($Tindex)+1]/Constructor[position()=number($pos)]/@name"/>
-        </m:ci>
-        <xsl:apply-templates select="./*[1]" mode="abstparams"><xsl:with-param name="noparams" select="$nopar"/><xsl:with-param name="binder">LAMBDA</xsl:with-param></xsl:apply-templates>
-        </m:apply>
-       </xsl:otherwise>
-       </xsl:choose>
-      <xsl:apply-templates select="./*[1]" mode="abstparams"><xsl:with-param name="noparams" select="$nopar"/><xsl:with-param name="target" select="1"/><xsl:with-param name="binder">LAMBDA</xsl:with-param></xsl:apply-templates>
-     </xsl:for-each> 
-    </m:apply>
-</xsl:template>
-
-<xsl:template match="FIX" mode="noannot">
-  <xsl:param name="backpointer" select="''"/>
-    <m:apply>
-     <xsl:variable name="findex"><xsl:value-of select="@noFun"/></xsl:variable>
-     <m:csymbol>fix</m:csymbol>
-     <m:ci><xsl:value-of select="FixFunction[position()=number($findex)+1]/@name"/></m:ci>
-     <xsl:apply-templates mode="noannot" select="*"/>
-    </m:apply>
-</xsl:template>
-
-<xsl:template match="COFIX" mode="noannot">
-   <m:apply>
-     <xsl:variable name="findex"><xsl:value-of select="@noFun"/></xsl:variable>
-     <m:csymbol>cofix</m:csymbol>
-     <m:ci><xsl:value-of select="CofixFunction[position()=number($findex)+1]/@name"/></m:ci>
-     <xsl:apply-templates mode="noannot" select="*"/>
-    </m:apply>
-</xsl:template>
-
-<!-- ELEMENTS OF CIC TERMS -->
-
-<xsl:template match="FixFunction" mode="noannot">
-    <m:bvar>
-     <m:ci><xsl:value-of select="@name"/></m:ci>
-     <m:type><xsl:apply-templates select="type/*[1]" mode="noannot"/></m:type>
-    </m:bvar> 
-    <xsl:apply-templates select="body/*[1]" mode="noannot"/>
-</xsl:template>
-
-<xsl:template match="CofixFunction" mode="noannot">
-    <m:bvar>
-     <m:ci><xsl:value-of select="@name"/></m:ci>
-     <m:type><xsl:apply-templates select="type/*[1]" mode="noannot"/></m:type>
-    </m:bvar> 
-    <xsl:apply-templates select="body/*[1]" mode="noannot"/>
-</xsl:template>
-
-</xsl:stylesheet>
diff --git a/helm/style/style_prima_del_linguaggio_naturale/content_to_html.xsl b/helm/style/style_prima_del_linguaggio_naturale/content_to_html.xsl
deleted file mode 100644
index dd1c07794..000000000
--- a/helm/style/style_prima_del_linguaggio_naturale/content_to_html.xsl
+++ /dev/null
@@ -1,657 +0,0 @@
-<?xml version="1.0"?>
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML">
-
-<!--***********************************************************************--> 
-<!-- From MathML content to HTML                                           -->
-<!-- HELM Group: Asperti, Padovani, Sacerdoti, Schena                      -->
-<!--***********************************************************************--> 
-
-
-<xsl:include href="html_init.xsl"/>
-<xsl:include href="html_set.xsl"/>
-<xsl:include href="html_reals.xsl"/>
-
-
-<!-- <xsl:variable name="absPath">http://localhost:8081/get?url=</xsl:variable>-->
-<xsl:variable name="header" select="document('http://localhost:8081/conf')/html_link"/>
-
-<xsl:variable name="showcast" select="0"/>
-
-
-<!--***********************************************************************-->
-<!-- HTML Head and Body                                                    -->
-<!--***********************************************************************-->
-
-<xsl:output method="html"/>
-
-<xsl:variable name="framewidth" select="36"/>
-
-<xsl:template match="/">
- <xsl:param name="current_indent" select="0"/>
-               <html> 
-                <head></head>
-                <body>
-                <xsl:apply-templates>
-                 <xsl:with-param name="current_indent" select="0"/>
-                </xsl:apply-templates>
-                </body>
-               </html>
-</xsl:template>
-
-<!--***********************************************************************-->
-<!-- Indentation             	                                           -->
-<!--***********************************************************************-->
-
-<xsl:template name="make_indent">
- <xsl:param name="current_indent" select="0"/>
-  <xsl:if test="$current_indent > 0">
-   <xsl:text>&#x00A0;</xsl:text>
-   <xsl:call-template name="make_indent">
-    <xsl:with-param name="current_indent" select="$current_indent - 1"/> 
-   </xsl:call-template>
-  </xsl:if>
-</xsl:template>
-
-<!-- Syntactic Sugar -->
-
-<xsl:template match="m:type">
-<xsl:param name="current_indent" select="0"/> 
-<xsl:apply-templates>
- <xsl:with-param name="current_indent" 
-           select="$current_indent"/>
-</xsl:apply-templates>
-</xsl:template>
-
-<xsl:template match="m:condition">
-<xsl:param name="current_indent" select="0"/> 
-<xsl:apply-templates>
- <xsl:with-param name="current_indent" 
-           select="$current_indent"/>
-</xsl:apply-templates>
-</xsl:template>
-
-<xsl:template match="m:math">
-<xsl:param name="current_indent" select="0"/> 
-<xsl:apply-templates>
- <xsl:with-param name="current_indent" 
-           select="$current_indent"/>
-</xsl:apply-templates>
-</xsl:template>
-
-<!-- CSYMBOL -->
-
-<xsl:template match="m:apply[m:csymbol]">
-  <xsl:param name="current_indent" select="0"/> 
-  <xsl:param name="width" select="$framewidth"/> 
-  <xsl:variable name="name">
-   <xsl:value-of select="m:csymbol"/>
-  </xsl:variable>
-  <xsl:variable name="charlength">
-   <xsl:apply-templates select="m:csymbol" mode="charcount"/>
-  </xsl:variable>
-     <!-- <xsl:value-of select="$current_indent"/> -->
-     <!-- <xsl:value-of select="$charlength"/> -->
-     <xsl:choose>
-      <xsl:when test="$name='prod'">
-       <xsl:choose>
-       <xsl:when test="$charlength > $framewidth">
-         <!-- &#x03a0; -->
-         <FONT FACE="symbol" SIZE="+2" color="blue">&#80;</FONT>
-         <xsl:apply-templates select="m:bvar/m:ci"/>
-         <xsl:text>:</xsl:text>
-         <xsl:apply-templates select="m:bvar/m:type">
-          <xsl:with-param name="current_indent" 
-           select="$current_indent + 2 + string-length(m:bvar/m:ci)"/>
-         </xsl:apply-templates><BR/> 
-         <xsl:call-template name="make_indent">
-          <xsl:with-param name="current_indent" select="$current_indent + 2"/> 
-         </xsl:call-template>
-         <xsl:text>.</xsl:text>
-         <xsl:apply-templates select="*[position()=3]">
-          <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-         </xsl:apply-templates>
-       </xsl:when>
-       <xsl:otherwise>
-        <!-- &#x03a0; -->
-        <FONT FACE="symbol" SIZE="+2" color="blue">&#80;</FONT>
-        <xsl:apply-templates select="m:bvar/m:ci"/>
-        <xsl:text>:</xsl:text>
-        <xsl:apply-templates select="m:bvar/m:type"/>
-        <xsl:text>.</xsl:text>
-        <xsl:apply-templates select="*[position()=3]"/>
-       </xsl:otherwise>
-       </xsl:choose>
-      </xsl:when>
-      <xsl:when test="$name='arrow'">
-       <xsl:choose>
-       <xsl:when test="$charlength > $framewidth">
-       <xsl:text>(</xsl:text>
-       <xsl:apply-templates select="*[position()=2]">
-        <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-       </xsl:apply-templates>
-       <BR/>
-       <xsl:call-template name="make_indent">
-        <xsl:with-param name="current_indent" select="$current_indent + 2"/> 
-       </xsl:call-template>
-       <!-- -> -->
-       <FONT FACE="symbol" SIZE="+2" color="blue">&#174;</FONT>
-       <xsl:apply-templates select="*[position()=3]">
-        <xsl:with-param name="current_indent" select="$current_indent + 5"/>
-       </xsl:apply-templates>
-       <xsl:text>)</xsl:text>
-       </xsl:when>
-       <xsl:otherwise>
-        <xsl:text>(</xsl:text>
-        <xsl:apply-templates select="*[position()=2]"/>
-        <!-- -> -->
-        <FONT FACE="symbol" SIZE="+2" color="blue">&#174;</FONT>
-        <xsl:apply-templates select="*[position()=3]"/>
-        <xsl:text>)</xsl:text>
-       </xsl:otherwise>
-       </xsl:choose>
-      </xsl:when>
-      <xsl:when test="$name='app'">
-       <xsl:choose>
-       <xsl:when test="$charlength  > $framewidth">
-        <xsl:text>(</xsl:text>
-        <xsl:apply-templates select="*[position()=2]">
-         <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-        </xsl:apply-templates>
-         <xsl:for-each select="*[position()>2]">
-          <BR/>
-           <xsl:call-template name="make_indent">
-            <xsl:with-param name="current_indent" select="$current_indent + 2"/>         
-           </xsl:call-template>
-            <xsl:apply-templates select=".">
-             <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-            </xsl:apply-templates>
-         </xsl:for-each>
-         <xsl:text>)</xsl:text>
-       </xsl:when>
-       <xsl:otherwise>
-        <xsl:text>(</xsl:text>
-        <xsl:apply-templates select="*[position()=2]"/>
-        <xsl:for-each select="*[position()>2]">
-         <xsl:text>&#x00A0;</xsl:text>
-         <xsl:apply-templates select="."/>
-        </xsl:for-each>
-        <xsl:text>)</xsl:text>
-       </xsl:otherwise>
-       </xsl:choose>
-      </xsl:when>
-      <xsl:when test="$name='cast'">
-       <xsl:choose>
-        <xsl:when test="$showcast = 1">
-         <xsl:choose>
-          <xsl:when test="$charlength > $framewidth">
-           <xsl:text>(</xsl:text>
-           <xsl:apply-templates select="*[position()=2]">
-            <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-           </xsl:apply-templates><BR/>
-           <xsl:call-template name="make_indent">
-            <xsl:with-param name="current_indent" select="$current_indent + 2"/>          </xsl:call-template>
-           <xsl:text>:></xsl:text>
-           <xsl:apply-templates select="*[position()=3]">
-            <xsl:with-param name="current_indent" select="$current_indent + 3"/>
-           </xsl:apply-templates>
-           <xsl:text>)</xsl:text>
-          </xsl:when>
-          <xsl:otherwise>
-           <xsl:text>(</xsl:text>
-           <xsl:apply-templates select="*[position()=2]"/>
-           <xsl:text>:></xsl:text>
-           <xsl:apply-templates select="*[position()=3]"/>
-           <xsl:text>)</xsl:text>
-          </xsl:otherwise>
-         </xsl:choose>
-        </xsl:when>
-        <xsl:otherwise>
-         <xsl:apply-templates select="*[position()=2]">
-          <xsl:with-param name="current_indent" select="$current_indent"/>
-         </xsl:apply-templates>
-        </xsl:otherwise>
-       </xsl:choose>
-      </xsl:when>
-      <xsl:when test="$name='Prop'">
-       <xsl:text>Prop</xsl:text>
-      </xsl:when>
-      <xsl:when test="$name='Set'">
-       <xsl:text>Set</xsl:text>
-      </xsl:when>
-      <xsl:when test="$name='Type'">
-       <xsl:text>Type</xsl:text>
-      </xsl:when>
-      <xsl:when test="$name='mutcase'">
-       <xsl:choose>
-       <xsl:when test="$charlength > $framewidth">
-         <xsl:text>&lt;</xsl:text>
-         <xsl:apply-templates select="*[position()=2]">
-          <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-         </xsl:apply-templates>
-         <xsl:text>&gt; </xsl:text>
-         <xsl:text>CASE </xsl:text>
-         <xsl:apply-templates select="*[position()=3]">
-          <xsl:with-param name="current_indent" select="$current_indent + 8"/>
-         </xsl:apply-templates>
-         <xsl:text> OF </xsl:text> 
-         <xsl:for-each select="*[position() mod 2 = 0 and position()>3]">
-         <BR/>
-         <xsl:call-template name="make_indent">
-            <xsl:with-param name="current_indent" select="$current_indent + 2"/>  
-         </xsl:call-template> 
-            <xsl:choose>
-            <xsl:when test="position() = 1">
-             <xsl:text>&#x00A0;&#x00A0;</xsl:text>
-            </xsl:when>
-            <xsl:otherwise>
-             <xsl:text>| </xsl:text>
-            </xsl:otherwise>
-            </xsl:choose>
-            <xsl:apply-templates select="."/>
-            <FONT FACE="symbol" SIZE="+2" color="green">&#222;</FONT>
-            <xsl:apply-templates select="following-sibling::*[position()= 1]">
-             <xsl:with-param name="current_indent" select="$current_indent + 4 + string-length()"/>
-            </xsl:apply-templates>
-         </xsl:for-each>
-       </xsl:when>
-       <xsl:otherwise>
-        <xsl:text>&lt;</xsl:text> 
-        <xsl:apply-templates select="*[position()=2]"/> 
-        <xsl:text>&gt; </xsl:text>
-        <xsl:text>CASE </xsl:text>
-        <xsl:apply-templates select="*[position()=3]"/>
-        <xsl:text> OF </xsl:text>
-        <xsl:for-each select="*[position() mod 2 = 0 and position()>3]">
-         <xsl:choose>
-         <xsl:when test="not(position() = 1)">
-          <xsl:text> | </xsl:text> 
-         </xsl:when> 
-         </xsl:choose>
-         <xsl:apply-templates select="."/>
-         <FONT FACE="symbol" SIZE="+2" color="green">&#222;</FONT>
-         <xsl:apply-templates select="following-sibling::*[position()= 1]">
-          <xsl:with-param name="current_indent" select="$current_indent + 2 + string-length()"/>
-         </xsl:apply-templates>
-        </xsl:for-each>
-       </xsl:otherwise>
-       </xsl:choose>
-      </xsl:when>
-      <xsl:when test="$name='fix'">
-       <xsl:choose>
-       <xsl:when test="$charlength  > $framewidth">
-            <xsl:text>FIX</xsl:text>
-            <xsl:value-of select="m:ci"/>
-            <xsl:text>{</xsl:text> 
-            <xsl:for-each select="m:bvar"> 
-              <BR/>
-              <xsl:call-template name="make_indent">
-               <xsl:with-param name="current_indent" select="$current_indent + 2"/>  
-              </xsl:call-template>
-              <xsl:value-of select="m:ci"/>
-              <xsl:text>:</xsl:text>
-              <xsl:apply-templates select="m:type">
-               <xsl:with-param name="current_indent" 
-                    select="$current_indent + 5 + string-length(m:ci)"/>
-               </xsl:apply-templates>
-              <BR/>
-              <xsl:call-template name="make_indent">
-               <xsl:with-param name="current_indent" select="$current_indent + 2"/>       
-              </xsl:call-template>
-              <xsl:text>:=</xsl:text> 
-              <xsl:apply-templates select="following-sibling::*[position() = 1]">
-               <xsl:with-param name="current_indent" select="$current_indent +2"/>
-              </xsl:apply-templates>
-            </xsl:for-each>
-             <BR/>
-              <xsl:call-template name="make_indent">
-               <xsl:with-param name="current_indent" select="$current_indent + 2"/>       
-              </xsl:call-template> 
-           <xsl:text>}</xsl:text>
-       </xsl:when>
-       <xsl:otherwise>
-        <xsl:text>FIX</xsl:text>
-        <xsl:value-of select="m:ci"/>
-        <xsl:text>{</xsl:text>
-        <xsl:for-each select="m:bvar"> 
-            <xsl:value-of select="m:ci"/>
-            <xsl:text>:</xsl:text>
-            <xsl:apply-templates select="m:type"/>
-            <xsl:text>:=</xsl:text>
-            <xsl:apply-templates select="following-sibling::*[position() = 1]"/>
-            <xsl:choose>
-             <xsl:when test="position()=last()">
-             <xsl:text>}</xsl:text>
-             </xsl:when>
-             <xsl:otherwise>
-             <xsl:text>;</xsl:text>
-             </xsl:otherwise>
-            </xsl:choose>
-         </xsl:for-each>
-       </xsl:otherwise>
-       </xsl:choose>
-      </xsl:when> 
-      <xsl:when test="$name='cofix'">
-       <xsl:choose>
-       <xsl:when test="($charlength + 10) > $framewidth">
-            <xsl:text>COFIX</xsl:text>
-            <xsl:value-of select="m:ci"/>
-            <xsl:text>{</xsl:text>
-            <BR/>
-            <xsl:call-template name="make_indent">
-             <xsl:with-param name="current_indent" select="$current_indent + 2"/>       
-            </xsl:call-template>
-            <xsl:for-each select="m:bvar"> 
-                <xsl:value-of select="m:ci"/>
-                <xsl:text>:</xsl:text>
-                <xsl:apply-templates select="m:type">
-                 <xsl:with-param name="current_indent" 
-                    select="$current_indent + 5 + string-length(m:ci)"/>
-                </xsl:apply-templates>
-                <BR/> 
-                <xsl:call-template name="make_indent">
-                 <xsl:with-param name="current_indent" select="$current_indent + 2"/>       
-                </xsl:call-template>
-                <xsl:text>:=</xsl:text>
-                <xsl:apply-templates select="following-sibling::*[position() = 1]">
-                 <xsl:with-param name="current_indent" select="$current_indent + 3"/>
-                </xsl:apply-templates>
- 
-            </xsl:for-each>
-            <BR/>
-              <xsl:call-template name="make_indent">
-               <xsl:with-param name="current_indent" select="$current_indent + 2"/>       
-              </xsl:call-template>
-            <xsl:text>}</xsl:text>
-       </xsl:when>
-       <xsl:otherwise>
-        <xsl:text>COFIX</xsl:text>
-        <xsl:value-of select="m:ci"/>
-        <xsl:text>{</xsl:text>
-        <xsl:for-each select="m:bvar"> 
-            <xsl:value-of select="m:ci"/>
-            <xsl:text>:</xsl:text>
-            <xsl:apply-templates select="m:type"/>
-            <xsl:text>:=</xsl:text>
-            <xsl:apply-templates select="following-sibling::*[position() = 1]"/>
-            <xsl:choose>
-             <xsl:when test="position()=last()">
-             <xsl:text>}</xsl:text>
-             </xsl:when>
-             <xsl:otherwise>
-             <xsl:text>;</xsl:text>
-             </xsl:otherwise>
-            </xsl:choose>
-         </xsl:for-each>
-       </xsl:otherwise>
-       </xsl:choose>
-      </xsl:when>
-      </xsl:choose>
-    <!--  </m:mrow> -->
-</xsl:template>
-
-<!-- LAMBDA -->
-
-<xsl:template match="m:lambda">
-<xsl:param name="current_indent" select="0"/>
-    <xsl:variable name="charlength">
-     <xsl:apply-templates select="*[position()=1]" mode="charcount"/>
-     <!-- <xsl:apply-templates select="." mode="charcount"/> -->
-    </xsl:variable>
-    <!-- <xsl:value-of select="$charlength"/> -->
-     <xsl:choose>
-     <xsl:when test="$charlength > $framewidth">
-       <!-- &#x03bb; -->
-       <FONT FACE="symbol" SIZE="+2" color="red">&#108;</FONT>
-       <xsl:apply-templates select="m:bvar/m:ci"/>
-       <xsl:text>:</xsl:text>
-       <xsl:apply-templates select="m:bvar/m:type">
-        <xsl:with-param name="current_indent" 
-           select="$current_indent + 2 + string-length(m:bvar/m:ci)"/>
-       </xsl:apply-templates><BR/> 
-       <xsl:call-template name="make_indent">
-        <xsl:with-param name="current_indent" select="$current_indent + 2"/>       
-       </xsl:call-template>
-       <xsl:text>.</xsl:text>
-       <xsl:apply-templates select="*[position()=2]">
-        <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-       </xsl:apply-templates>
-     </xsl:when>
-     <xsl:otherwise>
-      <!-- &#x03bb; -->
-      <FONT FACE="symbol" SIZE="+2" color="red">&#108;</FONT>
-      <xsl:apply-templates select="m:bvar/m:ci"/>
-      <xsl:text>:</xsl:text>
-      <xsl:apply-templates select="m:bvar/m:type"/>
-      <xsl:text>.</xsl:text>
-      <xsl:apply-templates select="*[position()=2]"/>
-     </xsl:otherwise>
-     </xsl:choose>
-</xsl:template>
-
-<!-- href -->
-<xsl:template match="m:ci">
- <xsl:choose>
-  <xsl:when test="boolean(@definitionURL)">
-<!-- CSC: non bisogna piu' utilizzare la url, bensi' la uri -->
-<!--   <xsl:variable name="url">
-    <xsl:value-of select="concat(string($absPath),
-     @definitionURL)"/>
-   </xsl:variable>-->
-   <a>
-   <xsl:attribute name="href">
-    <xsl:value-of select="concat(string($header),string(@definitionURL))"/>
-   </xsl:attribute>
-   <xsl:apply-templates/>
-   </a>
-  </xsl:when>
-  <xsl:otherwise>
-   <xsl:value-of select="."/>
-  </xsl:otherwise>
- </xsl:choose>
-</xsl:template>
-
-<!-- COUNTING -->
-
-<xsl:template match="m:ci|m:csymbol" mode="charcount">
-<xsl:param name="incurrent_length" select="0"/> 
-    <xsl:choose>
-    <xsl:when test="$framewidth >= ($incurrent_length + string-length())">
-     <xsl:variable name="siblength"><xsl:apply-templates select="following-sibling::*[position()=1]" mode="charcount"><xsl:with-param name="incurrent_length" select="$incurrent_length + string-length()"/></xsl:apply-templates></xsl:variable>
-     <xsl:choose>
-     <xsl:when test="string($siblength) = &quot;&quot;">
-      <xsl:value-of select="$incurrent_length + string-length()"/>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:value-of select="number($siblength)"/>
-     </xsl:otherwise>
-     </xsl:choose>
-    </xsl:when>
-    <xsl:otherwise>
-     <xsl:value-of select="$incurrent_length + string-length()"/>
-    </xsl:otherwise>
-    </xsl:choose>
-</xsl:template> 
-
-<xsl:template match="*" mode="charcount">
- <xsl:param name="incurrent_length" select="0"/>
- <xsl:choose>
-  <xsl:when test="count(child::*) = 0">
-   <xsl:value-of select="$incurrent_length"/>
-  </xsl:when>
-  <xsl:otherwise>
-    <xsl:variable name="childlength"><xsl:apply-templates select="*[position()=1]" mode="charcount"><xsl:with-param name="incurrent_length" select="$incurrent_length"/></xsl:apply-templates></xsl:variable>
-    <xsl:choose>
-     <xsl:when test="$framewidth >= number($childlength)">
-      <xsl:variable name="siblength"><xsl:apply-templates select="following-sibling::*[position()=1]" mode="charcount"><xsl:with-param name="incurrent_length" select="$childlength"/></xsl:apply-templates></xsl:variable>
-      <xsl:choose>
-       <xsl:when test="string($siblength) = &quot;&quot;">
-        <xsl:value-of select="number($childlength)"/>
-       </xsl:when>
-       <xsl:otherwise>
-        <xsl:value-of select="number($siblength)"/>
-       </xsl:otherwise>
-      </xsl:choose>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:value-of select="number($childlength)"/>
-     </xsl:otherwise>
-    </xsl:choose>
-  </xsl:otherwise>
- </xsl:choose>
-</xsl:template>
-
-
-<!--***********************************************************************-->
-<!-- OBJECTS                                                               -->
-<!--***********************************************************************-->
-
-<!-- DEFINITION -->
-
-<xsl:template match="Definition">
-<xsl:param name="current_indent" select="0"/>
-<p>
-DEFINITION <xsl:value-of select="@name"/>(<xsl:if test="string(./Params) != &quot;&quot;"><xsl:value-of select="Params"/></xsl:if>)<BR/>
-TYPE =<BR/>
-      <xsl:call-template name="make_indent">
-       <xsl:with-param name="current_indent" select="$current_indent + 7"/> 
-      </xsl:call-template>
-       <xsl:apply-templates select="type/*[1]">
-        <xsl:with-param name="current_indent" select="$current_indent + 7"/>
-       </xsl:apply-templates><BR/>
-BODY =<BR/>
-      <xsl:call-template name="make_indent">
-       <xsl:with-param name="current_indent" select="$current_indent + 7"/> 
-      </xsl:call-template>
-       <xsl:apply-templates select="body/*[1]">
-        <xsl:with-param name="current_indent" select="$current_indent + 7"/>
-       </xsl:apply-templates>
-</p>
-</xsl:template>
-
-<!-- AXIOM -->
-
-<xsl:template match="Axiom">
-<xsl:param name="current_indent" select="0"/>
-<p>
-AXIOM <xsl:value-of select="@name"/>(<xsl:if test="string(./Params) != &quot;&quot;"><xsl:value-of select="Params"/></xsl:if>)<BR/>
-TYPE = <xsl:apply-templates select="type/*[1]">
-          <xsl:with-param name="current_indent" select="$current_indent + 7"/>
-       </xsl:apply-templates>
-</p>
-</xsl:template>
-
-<!-- UNFINISHED PROOF -->
-
-<xsl:template match="CurrentProof">
-<xsl:param name="current_indent" select="0"/>
-<p>
-UNFINISHED PROOF <xsl:value-of select="@name"/>(<xsl:if test="string(./Params) != &quot;&quot;"><xsl:value-of select="Params"/></xsl:if>)<BR/>
-THESIS:  <xsl:apply-templates select="type/*[1]">
-          <xsl:with-param name="current_indent" select="$current_indent + 8"/>
-         </xsl:apply-templates><BR/>
-CONJECTURES: 
-      <xsl:for-each select="Conjecture">
-      <BR/>
-      <xsl:call-template name="make_indent">
-       <xsl:with-param name="current_indent" select="$current_indent + 8"/> 
-      </xsl:call-template>
-      <xsl:value-of select="./@no"/> : 
-      <xsl:apply-templates select="./*[1]">
-       <xsl:with-param name="current_indent" select="$current_indent + 11"/>
-      </xsl:apply-templates>
-      </xsl:for-each> 
-      <BR/>
-PROOF:
-      <xsl:apply-templates select="body/*[1]">
-        <xsl:with-param name="current_indent" select="$current_indent + 8"/>
-      </xsl:apply-templates>
-</p>
-</xsl:template>
-
-<!-- MUTUAL INDUCTIVE DEFINITION -->
-
-<xsl:template match="InductiveDefinition">
-<xsl:param name="current_indent" select="0"/>
-<p>
-     <xsl:for-each select="InductiveType">
-         <xsl:choose>
-         <xsl:when test="position() = 1">
-          <xsl:choose>
-          <xsl:when test="string(./@inductive) = &quot;true&quot;">
-          INDUCTIVE DEFINITION 
-          </xsl:when>
-          <xsl:otherwise>
-          COINDUCTIVE DEFINITION 
-          </xsl:otherwise>
-          </xsl:choose>  
-         </xsl:when>
-         <xsl:otherwise>
-          AND 
-         </xsl:otherwise>
-         </xsl:choose>
-         <xsl:value-of select="./@name"/>(<xsl:if test="string(../Params) != &quot;&quot;"><xsl:value-of select="../Params"/></xsl:if>)
-         [
-          <xsl:if test="string(../Param) != &quot;&quot;">         
-           <xsl:for-each select="../Param">
-            <xsl:value-of select="./@name"/>
-            :
-            <xsl:apply-templates select="*"/>
-           </xsl:for-each>
-          </xsl:if>
-         ] <BR/>
-         OF ARITY 
-         <xsl:apply-templates select="./arity/*[1]">
-          <xsl:with-param name="current_indent" select="$current_indent + 9"/>
-         </xsl:apply-templates> <BR/>
-         BUILT FROM:
-      <xsl:for-each select="./Constructor">
-      <BR/>
-      <xsl:call-template name="make_indent">
-       <xsl:with-param name="current_indent" select="$current_indent + 3"/> 
-      </xsl:call-template>
-         <xsl:choose>
-         <xsl:when test="position() = 1">
-         <xsl:text>&#x00A0;&#x00A0;</xsl:text>
-         </xsl:when>
-         <xsl:otherwise>
-         <xsl:text>| </xsl:text>
-         </xsl:otherwise>
-         </xsl:choose>
-         <xsl:value-of select="./@name"/> 
-         <xsl:text>: </xsl:text>
-         <xsl:apply-templates select="./*[1]">
-          <xsl:with-param name="current_indent" select="$current_indent + string-length(./@name) + 4"/>
-         </xsl:apply-templates>
-      </xsl:for-each>
-     </xsl:for-each>
-</p>
-</xsl:template>
-
-<!-- VARIABLE -->
-
-<xsl:template match="Variable">
-<xsl:param name="current_indent" select="0"/>
-<p>
-VARIABLE <xsl:value-of select="@name"/><BR/>
-TYPE = <xsl:apply-templates select="type/*[1]">
-          <xsl:with-param name="current_indent" select="$current_indent + 7"/>
-       </xsl:apply-templates>
-</p>
-</xsl:template>
-
-<!--***********************************************************************-->
-<!-- SECTIONS                                                              -->
-<!--***********************************************************************-->
-
-<!-- SECTION -->
-
-<xsl:template match="SECTION">
-<xsl:param name="current_indent" select="0"/>
- <h1>BEGIN OF SECTION</h1>
-  <xsl:apply-templates/>
- <h1>END OF SECTION</h1>
-</xsl:template>
-
-</xsl:stylesheet> 
diff --git a/helm/style/style_prima_del_linguaggio_naturale/html_init.xsl b/helm/style/style_prima_del_linguaggio_naturale/html_init.xsl
deleted file mode 100644
index 9e81b169c..000000000
--- a/helm/style/style_prima_del_linguaggio_naturale/html_init.xsl
+++ /dev/null
@@ -1,259 +0,0 @@
-<?xml version="1.0"?>
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML">
-
-<!--***********************************************************************--> 
-<!-- INIT style for HTML                                                   -->
-<!-- HELM Group: Asperti, Padovani, Sacerdoti, Schena                      -->
-<!--***********************************************************************--> 
-
-<xsl:variable name="absPath">http://localhost:8081/get?url=</xsl:variable>
-
-
-<!-- BASIC OPERATORS -->
-
- <xsl:template match="m:apply[m:and|m:or|m:eq|m:neq|m:leq|m:lt
-       |m:geq|m:gt|m:plus|m:times]">
-  <xsl:param name="current_indent" select="0"/> 
-  <xsl:param name="width" select="$framewidth"/>
-  <xsl:variable name="uri">
-   <xsl:value-of select="*[1]/@definitionURL"/>
-  </xsl:variable>
-  <xsl:variable name="charlength">
-   <xsl:apply-templates select="*[1]" mode="charcount"/>
-  </xsl:variable>
-  <xsl:variable name="symbol">
-   <xsl:choose>
-    <xsl:when test="m:and">
-     <xsl:value-of select="'&#217;'"/>
-    </xsl:when>
-    <xsl:when test="m:or">
-     <xsl:value-of select="'&#218;'"/>
-    </xsl:when>
-    <xsl:when test="m:eq">
-     <xsl:value-of select="'&#61;'"/>
-    </xsl:when>
-    <xsl:when test="m:neq">
-     <xsl:value-of select="'&#185;'"/>
-    </xsl:when>
-    <xsl:when test="m:leq">
-     <xsl:value-of select="'&#163;'"/>
-    </xsl:when>
-    <xsl:when test="m:lt">
-     <xsl:value-of select="'&#60;'"/>
-    </xsl:when>
-    <xsl:when test="m:geq">
-     <xsl:value-of select="'&#179;'"/>
-    </xsl:when>
-    <xsl:when test="m:gt">
-     <xsl:value-of select="'&#62;'"/>
-    </xsl:when>
-    <xsl:when test="m:plus">
-     <xsl:value-of select="'&#43;'"/>
-    </xsl:when>
-    <xsl:when test="m:times">
-     <xsl:value-of select="'&#42;'"/>
-    </xsl:when>
-   </xsl:choose>
-  </xsl:variable>
-  <xsl:choose>
-    <xsl:when test="$charlength > $framewidth">
-     <xsl:text>(</xsl:text>
-     <xsl:apply-templates select="*[2]">
-      <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-     </xsl:apply-templates>
-     <BR/> 
-     <xsl:call-template name="make_indent">
-      <xsl:with-param name="current_indent" select="$current_indent + 2"/> 
-     </xsl:call-template>
-     <a>
-     <xsl:attribute name="href">
-      <xsl:value-of select="concat(string($header),string($uri))"/>
-     </xsl:attribute>
-     <FONT FACE="symbol" color="blue">
-      <xsl:value-of select="$symbol"/>
-     </FONT>
-     </a>
-     <xsl:apply-templates select="*[3]">
-      <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-     </xsl:apply-templates>
-     <xsl:text>)</xsl:text>
-    </xsl:when>
-    <xsl:otherwise>
-     <xsl:text>(</xsl:text>
-     <xsl:apply-templates select="*[2]"/>
-     <a>
-     <xsl:attribute name="href">
-      <xsl:value-of select="concat(string($header),string($uri))"/>
-     </xsl:attribute>
-     <FONT FACE="symbol" color="blue">
-     <xsl:value-of select="$symbol"/>
-     </FONT>
-     </a>
-     <xsl:apply-templates select="*[3]"/>
-     <xsl:text>)</xsl:text>
-    </xsl:otherwise>
-   </xsl:choose>
- </xsl:template>
-
-<!-- MINUS (can be unary!) -->
-
-<xsl:template match="m:apply[m:minus]">
-  <xsl:param name="current_indent" select="0"/> 
-  <xsl:param name="width" select="$framewidth"/>
-  <xsl:variable name="uri">
-   <xsl:value-of select="*[1]/@definitionURL"/>
-  </xsl:variable>
-  <xsl:choose>
-   <xsl:when test="count(child::*)=2">
-    <a>
-    <xsl:attribute name="href">
-     <xsl:value-of select="concat(string($header),string($uri))"/>
-    </xsl:attribute>
-    <xsl:text>-</xsl:text>
-    </a>
-    <xsl:apply-templates select="*[2]">
-     <xsl:with-param name="current_indent" select="$current_indent + 1"/>
-    </xsl:apply-templates>
-   </xsl:when>
-   <xsl:otherwise>
-    <xsl:variable name="charlength">
-     <xsl:apply-templates select="*[1]" mode="charcount"/>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="$charlength > $framewidth">
-      <xsl:text>(</xsl:text>
-      <xsl:apply-templates select="*[2]">
-       <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-      </xsl:apply-templates>
-      <BR/> 
-      <xsl:call-template name="make_indent">
-       <xsl:with-param name="current_indent" select="$current_indent + 2"/> 
-      </xsl:call-template>
-      <a>
-      <xsl:attribute name="href">
-       <xsl:value-of select="concat(string($header),string($uri))"/>
-      </xsl:attribute>
-      <xsl:text>-</xsl:text>
-      </a>
-      <xsl:apply-templates select="*[3]">
-       <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-      </xsl:apply-templates>
-      <xsl:text>)</xsl:text>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:text>(</xsl:text>
-      <xsl:apply-templates select="*[2]"/>
-      <a>
-      <xsl:attribute name="href">
-       <xsl:value-of select="concat(string($header),string($uri))"/>
-      </xsl:attribute>
-      <xsl:text>-</xsl:text>
-      </a>
-      <xsl:apply-templates select="*[3]"/>
-      <xsl:text>)</xsl:text>
-     </xsl:otherwise>
-    </xsl:choose>
-   </xsl:otherwise>
-  </xsl:choose>
- </xsl:template>
-
-<!-- NOT -->
-
- <xsl:template match="m:apply[m:not]">
-  <xsl:param name="current_indent" select="0"/> 
-  <xsl:param name="width" select="$framewidth"/>
-  <xsl:variable name="uri">
-   <xsl:value-of select="m:not/@definitionURL"/>
-  </xsl:variable>
-     <a>
-     <xsl:attribute name="href">
-      <xsl:value-of select="concat(string($header),string($uri))"/>
-     </xsl:attribute>
-     <FONT FACE="symbol" color="blue">&#216;</FONT>
-     </a>
-     <xsl:apply-templates select="*[2]"/>
- </xsl:template>
-
-<!-- EXISTS -->
-
- <xsl:template match="m:apply[m:exists]">
-  <xsl:param name="current_indent" select="0"/> 
-  <xsl:param name="width" select="$framewidth"/>
-  <xsl:variable name="uri">
-   <xsl:value-of select="m:exists/@definitionURL"/>
-  </xsl:variable>
-  <xsl:variable name="charlength">
-   <xsl:apply-templates select="m:exists" mode="charcount"/>
-  </xsl:variable>
-  <xsl:choose>
-    <xsl:when test="$charlength > $framewidth">
-     <a>
-     <xsl:attribute name="href">
-      <xsl:value-of select="concat(string($header),string($uri))"/>
-     </xsl:attribute>
-     <FONT FACE="symbol" color="blue">&#36;</FONT>
-     </a>
-     <xsl:apply-templates select="m:bvar/m:ci"/>
-     <xsl:text>:</xsl:text>
-     <xsl:apply-templates select="m:condition">
-      <xsl:with-param name="current_indent" select="$current_indent + 2 +
-                                string-length(bvar/ci)"/> 
-     </xsl:apply-templates>
-     <BR/> 
-      <xsl:call-template name="make_indent">
-       <xsl:with-param name="current_indent" select="$current_indent + 2"/> 
-      </xsl:call-template>
-     <xsl:text>.</xsl:text>
-      <xsl:apply-templates select="*[last()]">
-       <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-      </xsl:apply-templates>
-    </xsl:when>
-    <xsl:otherwise>
-     <a>
-     <xsl:attribute name="href">
-      <xsl:value-of select="concat(string($header),string($uri))"/>
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diff --git a/helm/style/style_prima_del_linguaggio_naturale/html_reals.xsl b/helm/style/style_prima_del_linguaggio_naturale/html_reals.xsl
deleted file mode 100644
index 04ff478c5..000000000
--- a/helm/style/style_prima_del_linguaggio_naturale/html_reals.xsl
+++ /dev/null
@@ -1,234 +0,0 @@
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diff --git a/helm/style/style_prima_del_linguaggio_naturale/html_set.xsl b/helm/style/style_prima_del_linguaggio_naturale/html_set.xsl
deleted file mode 100644
index 6c7f66b1b..000000000
--- a/helm/style/style_prima_del_linguaggio_naturale/html_set.xsl
+++ /dev/null
@@ -1,463 +0,0 @@
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-<!-- INIT style for HTML                                                   -->
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-     <xsl:text>(</xsl:text>
-     <xsl:apply-templates select="*[2]"/>
-     <a>
-     <xsl:attribute name="href">
-      <xsl:value-of select="concat(string($header),string($uri))"/>
-     </xsl:attribute>
-     <FONT FACE="symbol" SIZE="+2" color="blue">&#205;</FONT>
-     </a>
-     <xsl:apply-templates select="*[3]"/>
-     <xsl:text>)</xsl:text>
-    </xsl:otherwise>
-   </xsl:choose>
- </xsl:template>
-
-<!-- PRSUBSET -->
-<xsl:template match="m:apply[m:prsubset]">
-  <xsl:param name="current_indent" select="0"/> 
-  <xsl:param name="width" select="$framewidth"/>
-  <xsl:variable name="uri">
-   <xsl:value-of select="m:prsubset/@definitionURL"/>
-  </xsl:variable>
-  <xsl:variable name="charlength">
-   <xsl:apply-templates select="m:prsubset" mode="charcount"/>
-  </xsl:variable>
-  <xsl:choose>
-    <xsl:when test="$charlength > $framewidth">
-     <xsl:text>(</xsl:text>
-     <xsl:apply-templates select="*[2]">
-      <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-     </xsl:apply-templates>
-     <BR/> 
-     <xsl:call-template name="make_indent">
-      <xsl:with-param name="current_indent" select="$current_indent + 2"/> 
-     </xsl:call-template>
-     <a>
-     <xsl:attribute name="href">
-      <xsl:value-of select="concat(string($header),string($uri))"/>
-     </xsl:attribute>
-     <FONT FACE="symbol" SIZE="+2" color="blue">&#204;</FONT>
-     </a>
-     <xsl:apply-templates select="*[3]">
-      <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-     </xsl:apply-templates>
-     <xsl:text>)</xsl:text>
-    </xsl:when>
-    <xsl:otherwise>
-     <xsl:text>(</xsl:text>
-     <xsl:apply-templates select="*[2]"/>
-     <a>
-     <xsl:attribute name="href">
-      <xsl:value-of select="concat(string($header),string($uri))"/>
-     </xsl:attribute>
-     <FONT FACE="symbol" SIZE="+2" color="blue">&#204;</FONT>
-     </a>
-     <xsl:apply-templates select="*[3]"/>
-     <xsl:text>)</xsl:text>
-    </xsl:otherwise>
-   </xsl:choose>
- </xsl:template>
-
-
-<!-- SETDIFF -->
-
-<xsl:template match="m:apply[m:setdiff]">
-  <xsl:param name="current_indent" select="0"/> 
-  <xsl:param name="width" select="$framewidth"/>
-  <xsl:variable name="uri">
-   <xsl:value-of select="m:setdiff/@definitionURL"/>
-  </xsl:variable>
-  <xsl:variable name="charlength">
-   <xsl:apply-templates select="m:setdiff" mode="charcount"/>
-  </xsl:variable>
-  <xsl:choose>
-    <xsl:when test="$charlength > $framewidth">
-     <xsl:text>(</xsl:text>
-     <xsl:apply-templates select="*[2]">
-      <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-     </xsl:apply-templates>
-     <BR/> 
-     <xsl:call-template name="make_indent">
-      <xsl:with-param name="current_indent" select="$current_indent + 2"/> 
-     </xsl:call-template>
-     <a>
-     <xsl:attribute name="href">
-      <xsl:value-of select="concat(string($header),string($uri))"/>
-     </xsl:attribute>
-     <xsl:text>/</xsl:text>
-     </a>
-     <xsl:apply-templates select="*[3]">
-      <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-     </xsl:apply-templates>
-     <xsl:text>)</xsl:text>
-    </xsl:when>
-    <xsl:otherwise>
-     <xsl:text>(</xsl:text>
-     <xsl:apply-templates select="*[2]"/>
-     <a>
-     <xsl:attribute name="href">
-      <xsl:value-of select="concat(string($header),string($uri))"/>
-     </xsl:attribute>
-     <xsl:text>/</xsl:text>
-     </a>
-     <xsl:apply-templates select="*[3]"/>
-     <xsl:text>)</xsl:text>
-    </xsl:otherwise>
-   </xsl:choose>
- </xsl:template>
-
-<!-- CARD -->
-<xsl:template match="m:apply[m:card]">
-  <xsl:param name="current_indent" select="0"/> 
-  <xsl:param name="width" select="$framewidth"/>
-  <xsl:variable name="uri">
-   <xsl:value-of select="m:card/@definitionURL"/>
-  </xsl:variable>
-  <xsl:text>|</xsl:text>
-  <xsl:apply-templates select="*[2]">
-   <xsl:with-param name="current_indent" select="$current_indent + 2"/>
-  </xsl:apply-templates>
-  <xsl:text>|</xsl:text>
- </xsl:template>
-
-<!-- COUNTING -->
-
-<xsl:template match="m:in|m:notin|m:intersect|m:union
-           |m:subset|m:prsubset|m:setdiff|m:card" mode="charcount">
-<xsl:param name="incurrent_length" select="0"/> 
-    <xsl:choose>
-    <xsl:when test="$framewidth >= ($incurrent_length + string-length())">
-     <xsl:variable name="siblength"><xsl:apply-templates select="following-sibling::*[position()=1]" mode="charcount"><xsl:with-param name="incurrent_length" select="$incurrent_length + string-length()"/></xsl:apply-templates></xsl:variable>
-     <xsl:choose>
-     <xsl:when test="string($siblength) = &quot;&quot;">
-      <xsl:value-of select="$incurrent_length + string-length()"/>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:value-of select="number($siblength)"/>
-     </xsl:otherwise>
-     </xsl:choose>
-    </xsl:when>
-    <xsl:otherwise>
-     <xsl:value-of select="$incurrent_length + string-length()"/>
-    </xsl:otherwise>
-    </xsl:choose>
-</xsl:template> 
-
-</xsl:stylesheet> 
-
-
-
-
-
-
-
diff --git a/helm/style/style_prima_del_linguaggio_naturale/mml2mmlv1_0.xsl b/helm/style/style_prima_del_linguaggio_naturale/mml2mmlv1_0.xsl
deleted file mode 100644
index 67e1accfb..000000000
--- a/helm/style/style_prima_del_linguaggio_naturale/mml2mmlv1_0.xsl
+++ /dev/null
@@ -1,1957 +0,0 @@
-<?xml version="1.0"?>
-
-<!-- ====================================================== -->
-<!-- XSL Transform of MathML content to MathML presentation -->
-<!--    By Igor Rodionov, Computer Science Department of    -->
-<!--   the University of Western Ontario, London, Canada    -->
-<!--  Complies with the W3C Working Draft from Dec.3, 1999  -->
-<!--             Version x.xx from Feb. 18, 2000            -->
-<!--              Comments to:  igor@csd.uwo.ca             -->
-<!--                                                        -->
-<!-- (C) Copyright 1999, 2000 Symbolic Computation          -->
-<!--     Laboratory, University of Western Ontario.         -->
-<!-- ====================================================== -->
-
-<!-- ====================================================== -->
-<!--  May 11, 2000 - HELM group:                            -->
-<!--  Added the namespace prefix to all the output elements -->
-<!--  Changed the mml prefix into m                         -->
-<!--  Swapped math element out of the semantic element      -->
-<!--  Added the declaration of the xlink namespace          --> 
-<!-- ====================================================== -->
-
-<xsl:stylesheet id="mml2mml"
-                version="1.0"
-                xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                xmlns:m="http://www.w3.org/1998/Math/MathML"
-                xmlns:xlink="http://www.w3.org/1999/xlink"
-                xmlns:helm="http://www.cs.unibo.it/helm">
-
-<xsl:output method="xml" indent="yes" encoding="iso-8859-1"/>
-
-<!-- ***************************************************** -->
-<!--  Parameters affectin' stylesheet's run-time behavior  -->
-<!-- ***************************************************** -->
-
-<!-- SEM_SW: -1 - strip off all semantics
-             0  - pass semantics "as is" (default)
-             1  - add semantics at top level only
-             2  - add semantics at all levels
-             3  - semantics at top level with cross-references
--->
-<!-- HELM: SEM_SW was 0 -->
-<xsl:param name="SEM_SW" select="1"/>
-
-<!-- Miscellaneous Variable Definitions -->
-
-<xsl:variable name="NO" select="0"/>
-<xsl:variable name="YES" select="1"/>
-<xsl:variable name="PAR_NO" select="-7"/>
-<xsl:variable name="PAR_YES" select="-5"/>
-<xsl:variable name="PAR_SAME" select="-3"/>
-<xsl:variable name="NO_PARAM" select="-1"/>
-
-<!-- Operator Precedence Definitions -->
-
-<xsl:variable name="NO_PREC" select="0"/>
-<xsl:variable name="UNION_PREC" select="1"/>
-<xsl:variable name="SETDIFF_PREC" select="1"/>
-<xsl:variable name="INTERSECT_PREC" select="3"/>
-<xsl:variable name="OR_PREC" select="5"/>
-<xsl:variable name="XOR_PREC" select="5"/>
-<xsl:variable name="AND_PREC" select="7"/>
-<xsl:variable name="PLUS_PREC" select="9"/>
-<xsl:variable name="MINUS_PREC" select="9"/>
-<xsl:variable name="MUL_PREC" select="11"/>
-<xsl:variable name="DIV_PREC" select="11"/>
-<xsl:variable name="NEG_PREC" select="13"/>
-<xsl:variable name="FUNCTION_PREC" select="99"/>
-
-<!-- AUXILIARY FUNCTIONS FOR BACKWARD POINTERS AND REFS (by andrea) -->
-
-<xsl:template name = "insert_xref">
- <xsl:if test="@helm:xref">
-  <xsl:attribute name="helm:xref">
-   <xsl:value-of select="@helm:xref"/>
-  </xsl:attribute>
- </xsl:if>
-</xsl:template>
-
-<xsl:template name = "insert">
- <xsl:if test="@definitionURL">
-  <xsl:attribute name="xlink:href">
-   <xsl:value-of select="@definitionURL"/>
-  </xsl:attribute>
- </xsl:if>
- <xsl:if test="@helm:xref">
-  <xsl:attribute name="helm:xref">
-   <xsl:value-of select="@helm:xref"/>
-  </xsl:attribute>
- </xsl:if>
-</xsl:template>
-
-<!-- for use inside m:apply -->
-<xsl:template name = "insert1">
- <xsl:if test="*[1]/@definitionURL">
-  <xsl:attribute name="xlink:href">
-   <xsl:value-of select="*[1]/@definitionURL"/>
-  </xsl:attribute>
- </xsl:if>
- <xsl:if test="*[1]/@helm:xref">
-  <xsl:attribute name="helm:xref">
-   <xsl:value-of select="*[1]/@helm:xref"/>
-  </xsl:attribute>
- </xsl:if>
-</xsl:template>
-
-<!-- For use inside "for-each" -->
-<xsl:template name = "insert2">
- <xsl:if test="../*[1]/@definitionURL">
-  <xsl:attribute name="xlink:href">
-   <xsl:value-of select="../*[1]/@definitionURL"/>
-  </xsl:attribute>
- </xsl:if>
- <xsl:if test="../*[1]/@helm:xref">
-  <xsl:attribute name="helm:xref">
-   <xsl:value-of select="../*[1]/@helm:xref"/>
-  </xsl:attribute>
- </xsl:if>
-</xsl:template>
-
-<!-- THE TOPMOST ELEMENT: MATH -->
-
-<xsl:template match = "m:math">
-  <xsl:choose>
-    <xsl:when test="$SEM_SW>0">
-<!-- HELM: deleted math (we have already inserted at object level) -->
-     <!--<m:math>-->
-      <m:semantics>
-          <xsl:apply-templates mode = "semantics"/>
-       <m:annotation-xml encoding="MathML">
-          <xsl:copy-of select = "*"/>
-       </m:annotation-xml>
-      </m:semantics>
-     <!--</m:math>-->
-    </xsl:when>
-    <xsl:otherwise>
-      <!--<m:math>-->
-        <xsl:apply-templates mode = "semantics"/>
-      <!--</m:math>-->  
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<!-- SEMANTICS -->
-
-<xsl:template match = "m:*" mode = "semantics">
-  <xsl:param name="IN_PREC" select="$NO_PREC"/>
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:choose>
-    <xsl:when test="$SEM_SW=-1 and self::m:semantics">
-      <xsl:apply-templates select="*[1]">
-        <xsl:with-param name="IN_PREC" select="$IN_PREC"/>
-        <xsl:with-param name="PARAM" select="$PARAM"/>
-        <xsl:with-param name="PAREN" select="$PAREN"/>
-        <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-      </xsl:apply-templates>
-    </xsl:when>
-    <xsl:when test="$SEM_SW=0 and self::m:semantics">
-      <m:semantics>
-        <xsl:apply-templates select="*[1]">
-          <xsl:with-param name="IN_PREC" select="$IN_PREC"/>
-          <xsl:with-param name="PARAM" select="$PARAM"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-        <xsl:copy-of select="m:annotation-xml"/>
-      </m:semantics>
-    </xsl:when>
-    <xsl:when test="$SEM_SW=2">
-      <m:semantics>
-        <xsl:choose>
-          <xsl:when test="self::m:semantics">
-            <xsl:apply-templates select="*[1]">
-              <xsl:with-param name="IN_PREC" select="$IN_PREC"/>
-              <xsl:with-param name="PARAM" select="$PARAM"/>
-              <xsl:with-param name="PAREN" select="$PAREN"/>
-              <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-            </xsl:apply-templates>
-            <xsl:copy-of select="m:annotation-xml"/>
-          </xsl:when>
-          <xsl:otherwise>
-            <xsl:apply-templates select=".">
-              <xsl:with-param name="IN_PREC" select="$IN_PREC"/>
-              <xsl:with-param name="PARAM" select="$PARAM"/>
-              <xsl:with-param name="PAREN" select="$PAREN"/>
-              <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-            </xsl:apply-templates>
-            <m:annotation-xml encoding="MathML">
-              <xsl:copy-of select="."/>
-            </m:annotation-xml>
-          </xsl:otherwise>
-        </xsl:choose>
-      </m:semantics>
-    </xsl:when>
-    <xsl:when test="$SEM_SW=3 and @id">
-      <m:mrow idref="{@id}">
-        <xsl:apply-templates select=".">
-          <xsl:with-param name="IN_PREC" select="$IN_PREC"/>
-          <xsl:with-param name="PARAM" select="$PARAM"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mrow>
-    </xsl:when>
-    <xsl:otherwise>
-      <xsl:apply-templates select=".">
-        <xsl:with-param name="IN_PREC" select="$IN_PREC"/>
-        <xsl:with-param name="PARAM" select="$PARAM"/>
-        <xsl:with-param name="PAREN" select="$PAREN"/>
-        <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-      </xsl:apply-templates>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:semantics">
-  <xsl:apply-templates select="*[1]" mode = "semantics"/>
-</xsl:template>
-
-
-<!-- BASIC ELEMENTS -->
-
-<xsl:template match = "m:cn">
-  <xsl:param name="IN_PREC" select="$NO_PREC"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:choose>
-    <xsl:when test=". &lt; 0 and $IN_PREC &gt; 0 and $PAREN=$PAR_NO and $PAR_NO_IGNORE=$NO">
-      <m:mfenced separators="">
-        <xsl:apply-templates select="." mode="cn"/>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:otherwise>
-      <xsl:apply-templates select="." mode="cn"/>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:cn" mode="cn">
-  <xsl:choose>
-    <xsl:when test="@base and (not(@type) or @type='integer' or @type='real')">
-      <m:msub>
-        <m:mn> <xsl:apply-templates mode = "semantics"/> </m:mn>
-        <m:mn> <xsl:value-of select="@base"/> </m:mn>
-      </m:msub>
-    </xsl:when>
-    <xsl:when test="@type='complex' and not(@base) and child::m:sep[1]">
-      <m:mfenced separators="">
-        <m:mn> <xsl:apply-templates select="text()[1]" mode = "semantics"/> </m:mn>
-        <xsl:if test="text()[2] &lt; 0">
-          <m:mo>-</m:mo>
-          <m:mn> <xsl:value-of select="-text()[2]"/> </m:mn>
-        </xsl:if>
-        <xsl:if test="not(text()[2] &lt; 0)">
-          <m:mo>+</m:mo>
-          <xsl:apply-templates select="text()[2]" mode = "semantics"/>
-        </xsl:if>
-        <m:mo> <mchar name="InvisibleTimes"/> </m:mo>
-        <m:mo>i</m:mo>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:when test="@type='complex' and @base and child::m:sep[1]">
-      <m:msub>
-        <m:mfenced separators="">
-          <m:mn> <xsl:apply-templates select="text()[1]" mode = "semantics"/> </m:mn>
-          <xsl:if test="text()[2] &lt; 0">
-            <m:mo>-</m:mo>
-            <m:mn> <xsl:value-of select="-text()[2]"/> </m:mn>
-          </xsl:if>
-          <xsl:if test="not(text()[2] &lt; 0)">
-            <m:mo>+</m:mo>
-            <m:mn> <xsl:apply-templates select="text()[2]" mode = "semantics"/> </m:mn>
-          </xsl:if>
-          <m:mo> <mchar name="InvisibleTimes"/> </m:mo>
-          <m:mo>i</m:mo>
-        </m:mfenced>
-        <m:mn> <xsl:value-of select="@base"/> </m:mn>
-      </m:msub>
-    </xsl:when>
-    <xsl:when test="@type='rational' and not(@base) and child::m:sep[1]">
-      <m:mrow>
-        <m:mn> <xsl:apply-templates select="text()[1]" mode = "semantics"/> </m:mn>
-        <m:mo>/</m:mo>
-        <m:mn> <xsl:apply-templates select="text()[2]" mode = "semantics"/> </m:mn>
-      </m:mrow>
-    </xsl:when>
-    <xsl:when test="@type='rational' and @base and child::m:sep[1]">
-      <m:msub>
-        <m:mfenced separators="">
-          <m:mn> <xsl:apply-templates select="text()[1]" mode = "semantics"/> </m:mn>
-          <m:mo>/</m:mo>
-          <m:mn> <xsl:apply-templates select="text()[2]" mode = "semantics"/> </m:mn>
-        </m:mfenced>
-        <m:mn> <xsl:value-of select="@base"/> </m:mn>
-      </m:msub>
-    </xsl:when>
-    <xsl:when test="@type='polar' and not(@base) and child::m:sep[1]">
-      <m:mrow>
-        <m:mo>Polar</m:mo>
-        <m:mfenced separators=",">
-          <m:mn> <xsl:apply-templates select="text()[1]" mode = "semantics"/> </m:mn>
-          <m:mn> <xsl:apply-templates select="text()[2]" mode = "semantics"/> </m:mn>
-        </m:mfenced>
-      </m:mrow>
-    </xsl:when>
-    <xsl:when test="@type='polar' and @base and child::m:sep[1]">
-      <m:msub>
-        <m:mrow>
-          <m:mo>Polar</m:mo>
-          <m:mfenced separators=",">
-            <m:mn> <xsl:apply-templates select="text()[1]" mode = "semantics"/> </m:mn>
-            <m:mn> <xsl:apply-templates select="text()[2]" mode = "semantics"/> </m:mn>
-          </m:mfenced>
-        </m:mrow>
-        <m:mn> <xsl:value-of select="@base"/> </m:mn>
-      </m:msub>
-   </xsl:when>
-    <xsl:otherwise>
-      <m:mn> 
-       <xsl:call-template name="insert"/>
-       <xsl:apply-templates mode = "semantics"/> 
-      </m:mn>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:ci">
-  <xsl:choose>
-    <xsl:when test="@type='vector' or @type=matrix or @type=set">
-      <m:mi fontweight="bold"> <xsl:apply-templates mode = "semantics"/> </m:mi>
-    </xsl:when>
-    <xsl:otherwise>
-     <m:mi> 
-      <xsl:call-template name="insert"/>
-      <xsl:apply-templates mode = "semantics"/> 
-     </m:mi>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:csymbol">
-  <xsl:choose>
-    <xsl:when test="*[1]">
-      <xsl:copy-of select = "*"/>
-    </xsl:when>
-    <xsl:otherwise>
-      <m:mo> <xsl:apply-templates mode = "semantics"/> </m:mo>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-
-<!-- BASIC CONTENT ELEMENTS -->
-
-<xsl:template match = "m:apply[m:fn[1]]">
-  <m:mrow>
-    <xsl:apply-templates select = "m:fn[1]" mode = "semantics"/>
-    <m:mfenced separators=",">
-      <xsl:apply-templates select = "*[position()>1]" mode = "semantics"/>
-    </m:mfenced>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:fn">
-  <xsl:apply-templates select = "*[1]" mode = "semantics">
-    <xsl:with-param name="IN_PREC" select="$FUNCTION_PREC"/>
-  </xsl:apply-templates>
-</xsl:template>
-
-<xsl:template match = "m:interval">
-  <xsl:choose>
-    <xsl:when test="@closure='closed'">
-      <m:mfenced open="[" close="]" separators=",">
-        <xsl:apply-templates mode = "semantics"/>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:when test="@closure='open'">
-      <m:mfenced separators=",">
-        <xsl:apply-templates mode = "semantics"/>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:when test="@closure='open-closed'">
-      <m:mfenced open="(" close="]" separators=",">
-        <xsl:apply-templates mode = "semantics"/>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:when test="@closure='closed-open'">
-      <m:mfenced open="[" close=")" separators=",">
-        <xsl:apply-templates mode = "semantics"/>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:otherwise>
-      <m:mfenced open="[" close="]" separators=",">
-        <xsl:apply-templates mode = "semantics"/>
-      </m:mfenced>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:*[1][self::m:apply[m:inverse[1]]]]">
-  <m:mrow>
-    <xsl:apply-templates select = "*[1]" mode = "semantics"/>
-    <m:mfenced separators=",">
-      <xsl:apply-templates select = "*[position()>1]" mode = "semantics"/>
-    </m:mfenced>
- </m:mrow>
-</xsl:template>
-
-<!-- These "semantical" Transformations are REALLY questionable.
-     Andrea -->
-
-<xsl:template match = "m:apply[*[1][self::m:inverse]]">
-  <xsl:choose>
-    <xsl:when test="*[2]=m:exp">
-      <m:mo>ln</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:ln | m:log">
-      <m:mo>exp</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:sin">
-      <m:mo>arcsin</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:cos">
-      <m:mo>arccos</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:tan">
-      <m:mo>arctan</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:sec">
-      <m:mo>arcsec</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:csc">
-      <m:mo>arccsc</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:cot">
-      <m:mo>arccot</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:sinh">
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-    </xsl:when>
-    <xsl:when test="*[2]=m:cosh">
-      <m:mo>arccosh</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:tanh">
-      <m:mo>arctanh</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:sech">
-      <m:mo>arcsech</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:csch">
-      <m:mo>arccsch</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:coth">
-      <m:mo>arccoth</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:arcsin">
-      <m:mo>sin</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:arccos">
-      <m:mo>cos</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:arctan">
-      <m:mo>tan</m:mo>
-    </xsl:when>
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-        <xsl:apply-templates select = "*[2]" mode = "semantics"/>
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-</xsl:template>
-
-<xsl:template match = "m:sep"/>
-
-<xsl:template match = "m:condition">
-  <xsl:choose>
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-</xsl:template>
-
-<xsl:template match = "m:declare"/>
-
-<xsl:template match = "m:lambda">
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-    <m:mfenced separators=",">
-      <xsl:for-each select = "*">
-        <xsl:choose>
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-            <xsl:apply-templates select = "." mode="semantics"/>
-          </xsl:when>
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-            </m:mrow>
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-  </m:mrow>
-</xsl:template>
-
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-    </m:mfenced>
- </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[*[1][self::m:compose]]">
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-    <xsl:for-each select = "m:*[position()>2][self::m:ci[@type='fn'] | self::m:fn]">
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-      <xsl:apply-templates select = "." mode="semantics"/>
-    </xsl:for-each>
-  </m:mfenced>
-</xsl:template>
-
-<xsl:template match = "m:ident">
-  <m:mo>id</m:mo>
-</xsl:template>
-
-
-<!-- ARITHMETIC, ALGEBRA & LOGIC -->
-
-<xsl:template match = "m:apply[m:quotient[1]]">
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-  </m:mfenced>
-</xsl:template>
-
-<xsl:template match = "m:apply[*[1][self::m:exp]]">
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-    <m:mo>e</m:mo>
-    <xsl:apply-templates select = "*[2]" mode = "semantics"/>
-  </m:msup>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:factorial[1]]">
-  <m:mrow>
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-      <xsl:with-param name="IN_PREC" select="$FUNCTION_PREC"/>
-      <xsl:with-param name="PAR_NO_IGNORE" select="$NO"/>
-    </xsl:apply-templates>
-    <m:mo><xsl:call-template name="insert1"/>!</m:mo>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:max[1] | m:min[1]]">
-  <m:mrow>
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-          <m:mo><xsl:call-template name="insert1"/>max</m:mo>
-        </xsl:if>
-        <xsl:if test="*[1]=m:min">
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-        <xsl:apply-templates select="*[2]" mode = "semantics"/>
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-      </xsl:if>
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-      </xsl:if>
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-      </xsl:if>
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-    </xsl:if>
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-      </xsl:if>
-      <xsl:if test="*[1]=m:min">
-        <m:mo><xsl:call-template name="insert1"/>min</m:mo>
-      </xsl:if>
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-
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-
-<xsl:template match = "m:apply[m:minus[1]]" mode="minus">
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-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
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-    <xsl:apply-templates select="*[2]" mode = "semantics">
-      <xsl:with-param name="IN_PREC" select="$NEG_PREC"/>
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-  </xsl:if>
-  <xsl:if test="*[3]">
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-    <xsl:apply-templates select="*[3]" mode = "semantics">
-      <xsl:with-param name="IN_PREC" select="$MINUS_PREC"/>
-      <xsl:with-param name="PARAM" select="$PAR_SAME"/>
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-  </xsl:if>
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-
-<xsl:template match = "m:apply[m:plus[1]]">
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-
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-
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-<!-- MODIFICA PROVVISORIA -->
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-  </xsl:if>
-</xsl:template>
-
-<!-- COMMENTO : dove metto la uri della definizione di radice ???? -->
-
-<xsl:template match = "m:apply[m:root[1]]">
-  <m:msqrt>
-    <xsl:call-template name="insert_xref"/>
-    <xsl:if test="*[2]=m:degree">
-      <xsl:apply-templates select="*[3]" mode = "semantics"/>
-      <xsl:apply-templates select="*[2]" mode = "semantics"/>
-    </xsl:if>
-    <xsl:if test="not(*[2]=m:degree)">
-      <xsl:apply-templates select="*[2]" mode = "semantics"/>
-      <m:mn>2</m:mn>
-    </xsl:if>
-  </m:msqrt>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:gcd[1]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <xsl:if test="not(parent::m:apply[m:power[1]])">
-      <m:mo><xsl:call-template name="insert1"/>gcd</m:mo>
-    </xsl:if>
-    <xsl:if test="parent::m:apply[m:power[1]]">
-      <m:msup>
-        <m:mo><xsl:call-template name="insert1"/>gcd</m:mo>
-        <xsl:apply-templates select = "../*[3]" mode = "semantics"/>
-      </m:msup>
-    </xsl:if>
-    <m:mfenced separators=",">
-      <xsl:for-each select = "*[position()>1]">
-        <xsl:apply-templates select = "." mode="semantics"/>
-      </xsl:for-each>
-    </m:mfenced>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:and[1]]">
-  <xsl:param name="IN_PREC" select="$NO_PREC"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:choose>
-    <xsl:when test="$IN_PREC &gt; $AND_PREC">
-      <m:mfenced separators="">
-        <xsl:call-template name="insert_xref"/>
-        <xsl:apply-templates select="." mode="and">
-          <xsl:with-param name="PARAM" select="$IN_PREC"/>
-          <xsl:with-param name="PAREN" select="$PAR_YES"/>
-        </xsl:apply-templates>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:when test="$IN_PREC &gt; $NO_PREC and $IN_PREC &lt; $FUNCTION_PREC and not($SEM_SW=2)">
-      <xsl:apply-templates select="." mode="and">
-        <xsl:with-param name="PARAM" select="$IN_PREC"/>
-        <xsl:with-param name="PAREN" select="$PAREN"/>
-        <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-      </xsl:apply-templates>
-    </xsl:when>
-    <xsl:otherwise>
-      <m:mrow>
-        <xsl:call-template name="insert_xref"/>
-        <xsl:apply-templates select="." mode="and">
-          <xsl:with-param name="PARAM" select="$IN_PREC"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mrow>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:and[1]]" mode="and">
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:apply-templates select="*[2]" mode = "semantics">
-    <xsl:with-param name="IN_PREC" select="$AND_PREC"/>
-    <xsl:with-param name="PARAM" select="$PARAM"/>
-    <xsl:with-param name="PAREN" select="$PAREN"/>
-    <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-  </xsl:apply-templates>
-  <xsl:for-each select = "*[position()>2]">
-    <m:mo><xsl:call-template name="insert2"/> <mchar name="wedge"/> </m:mo>
-    <xsl:apply-templates select="." mode = "semantics">
-      <xsl:with-param name="IN_PREC" select="$AND_PREC"/>
-      <xsl:with-param name="PAREN" select="$PAREN"/>
-      <xsl:with-param name="PAR_NO_IGNORE" select="$NO"/>
-    </xsl:apply-templates>
-  </xsl:for-each>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:or[1]]">
-  <xsl:param name="IN_PREC" select="$NO_PREC"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:choose>
-    <xsl:when test="$IN_PREC &gt; $OR_PREC">
-      <m:mfenced separators="">
-         <xsl:call-template name="insert_xref"/>
-        <xsl:apply-templates select="." mode="or">
-          <xsl:with-param name="PARAM" select="$IN_PREC"/>
-          <xsl:with-param name="PAREN" select="$PAR_YES"/>
-        </xsl:apply-templates>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:when test="$IN_PREC &gt; $NO_PREC and $IN_PREC &lt; $FUNCTION_PREC and not($SEM_SW=2)">
-      <xsl:apply-templates select="." mode="or">
-        <xsl:with-param name="PARAM" select="$IN_PREC"/>
-        <xsl:with-param name="PAREN" select="$PAREN"/>
-        <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-      </xsl:apply-templates>
-    </xsl:when>
-    <xsl:otherwise>
-      <m:mrow>
-        <xsl:call-template name="insert_xref"/>
-        <xsl:apply-templates select="." mode="or">
-          <xsl:with-param name="PARAM" select="$IN_PREC"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mrow>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:or[1]]" mode="or">
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:apply-templates select="*[2]" mode = "semantics">
-    <xsl:with-param name="IN_PREC" select="$OR_PREC"/>
-    <xsl:with-param name="PARAM" select="$PARAM"/>
-    <xsl:with-param name="PAREN" select="$PAREN"/>
-    <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-  </xsl:apply-templates>
-  <xsl:for-each select = "*[position()>2]">
-    <m:mo><xsl:call-template name="insert2"/> <mchar name="vee"/> </m:mo>
-    <xsl:apply-templates select="." mode = "semantics">
-      <xsl:with-param name="IN_PREC" select="$OR_PREC"/>
-      <xsl:with-param name="PAREN" select="$PAREN"/>
-      <xsl:with-param name="PAR_NO_IGNORE" select="$NO"/>
-    </xsl:apply-templates>
-  </xsl:for-each>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:xor[1]]">
-  <xsl:param name="IN_PREC" select="$NO_PREC"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:choose>
-    <xsl:when test="$IN_PREC &gt; $XOR_PREC">
-      <m:mfenced separators="">
-        <xsl:call-template name="insert_xref"/>
-        <xsl:apply-templates select="." mode="xor">
-          <xsl:with-param name="PARAM" select="$IN_PREC"/>
-          <xsl:with-param name="PAREN" select="$PAR_YES"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:when test="$IN_PREC &gt; $NO_PREC and $IN_PREC &lt; $FUNCTION_PREC and not($SEM_SW=2)">
-      <xsl:apply-templates select="." mode="xor">
-        <xsl:with-param name="PARAM" select="$IN_PREC"/>
-        <xsl:with-param name="PAREN" select="$PAREN"/>
-      </xsl:apply-templates>
-    </xsl:when>
-    <xsl:otherwise>
-      <m:mrow>
-        <xsl:call-template name="insert_xref"/>
-        <xsl:apply-templates select="." mode="xor">
-          <xsl:with-param name="PARAM" select="$IN_PREC"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mrow>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:xor[1]]" mode="xor">
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:apply-templates select="*[2]" mode = "semantics">
-    <xsl:with-param name="IN_PREC" select="$XOR_PREC"/>
-    <xsl:with-param name="PARAM" select="$PARAM"/>
-    <xsl:with-param name="PAREN" select="$PAREN"/>
-    <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-  </xsl:apply-templates>
-  <xsl:for-each select = "*[position()>2]">
-    <m:mo><xsl:call-template name="insert2"/> <mchar name="xor"/> </m:mo>
-    <xsl:apply-templates select="." mode = "semantics">
-      <xsl:with-param name="IN_PREC" select="$XOR_PREC"/>
-      <xsl:with-param name="PAREN" select="$PAREN"/>
-      <xsl:with-param name="PAR_NO_IGNORE" select="$NO"/>
-    </xsl:apply-templates>
-  </xsl:for-each>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:not[1]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <m:mo><xsl:call-template name="insert1"/>not</m:mo>
-    <xsl:apply-templates select = "*[2]" mode = "semantics">
-      <xsl:with-param name="IN_PREC" select="$FUNCTION_PREC"/>
-    </xsl:apply-templates>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:forall[1]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <m:mo><xsl:call-template name="insert1"/>for all</m:mo>
-    <m:mfenced separators=",">
-      <xsl:for-each select = "m:bvar">
-        <xsl:apply-templates select = "." mode="semantics"/>
-      </xsl:for-each>
-    </m:mfenced>
-    <xsl:if test="m:condition">
-      <m:mo>:</m:mo>
-      <xsl:apply-templates select = "m:condition/*" mode = "semantics"/>
-      <m:mo>,</m:mo>
-    </xsl:if>
-    <xsl:apply-templates select = "*[position()>1 and not(self::m:bvar) and not(self::m:condition)]" mode = "semantics"/>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:exists[1]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <m:mo><xsl:call-template name="insert1"/> <mchar name="Exists"/> </m:mo>
-    <m:mfenced separators=",">
-      <xsl:for-each select = "m:bvar">
-        <xsl:apply-templates select = "." mode="semantics"/>
-      </xsl:for-each>
-    </m:mfenced>
-    <xsl:if test="m:condition">
-      <m:mo>,</m:mo>
-      <xsl:apply-templates select = "m:condition/*" mode = "semantics"/>
-    </xsl:if>
-    <m:mo>:</m:mo>
-    <xsl:apply-templates select = "*[position()>1 and not(self::m:bvar) and not(self::m:condition)]" mode = "semantics"/>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:abs[1]]">
-  <xsl:if test="not(parent::m:apply[m:power[1]])">
-    <m:mfenced open="|" close="|" separators="">
-      <xsl:call-template name="insert_xref"/>
-      <xsl:apply-templates select = "*[position()>1]" mode = "semantics"/>
-    </m:mfenced>
-  </xsl:if>
-  <xsl:if test="parent::m:apply[m:power[1]]">
-    <m:msup>
-      <m:mfenced open="|" close="|" separators="">
-        <xsl:call-template name="insert_xref"/>
-        <xsl:apply-templates select = "*[position()>1]" mode = "semantics"/>
-      </m:mfenced>
-      <xsl:apply-templates select = "../*[3]" mode = "semantics"/>
-    </m:msup>
-  </xsl:if>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:conjugate[1]]">
-  <m:mover>
-    <m:mrow>
-      <xsl:apply-templates select = "*[position()>1]" mode = "semantics"/>
-    </m:mrow>
-    <m:mo><xsl:call-template name="insert1"/> <mchar name="UnderBar"/> </m:mo>
-  </m:mover>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:arg[1] | m:real[1] | m:imaginary[1]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <xsl:choose>
-      <xsl:when test="m:arg">
-        <m:mo><xsl:call-template name="insert1"/>arg</m:mo>
-      </xsl:when>
-      <xsl:when test="m:real">
-        <m:mo><xsl:call-template name="insert1"/>Real</m:mo>
-      </xsl:when>
-      <xsl:when test="m:imaginary">
-        <m:mo><xsl:call-template name="insert1"/>Imaginary</m:mo>
-      </xsl:when>
-    </xsl:choose>
-    <m:mfenced separators="">
-      <xsl:apply-templates select = "*[2]" mode = "semantics"/>
-    </m:mfenced>
-  </m:mrow>
-</xsl:template>
-
-
-<!-- RELATIONS -->
-
-<xsl:template match = "m:apply[m:neq | m:approx | m:tendsto | m:implies | m:in | m:notin | m:notsubset | m:notprsubset | m:subset | m:prsubset | m:eq | m:gt | m:lt | m:geq | m:leq | m:equivalent]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <xsl:if test="*[1]=m:neq or *[1]=m:approx or *[1]=m:tendsto or *[1]=m:implies or *[1]=m:in or *[1]=m:notin or *[1]=m:notsubset or *[1]=m:notprsubset">
-      <xsl:apply-templates select = "*[2]" mode = "semantics"/>
-      <xsl:if test="*[1]=m:neq">
-        <m:mo><xsl:call-template name="insert1"/> <mchar name="NotEqual"/> </m:mo>
-      </xsl:if>
-      <xsl:if test="*[1]=m:approx">
-        <m:mo><xsl:call-template name="insert1"/> <mchar name="approxeq"/> </m:mo>
-      </xsl:if>
-      <xsl:if test="*[1]=m:tendsto">
-        <m:mo><xsl:call-template name="insert1"/> <mchar name="RightArrow"/> </m:mo>
-      </xsl:if>
-      <xsl:if test="*[1]=m:implies">
-        <m:mo><xsl:call-template name="insert1"/> <mchar name="DoubleRightArrow"/> </m:mo>
-      </xsl:if>
-      <xsl:if test="*[1]=m:in">
-        <m:mo><xsl:call-template name="insert1"/>
-        <mchar name="Element"/> 
-       </m:mo>
-      </xsl:if>
-      <xsl:if test="*[1]=m:notin">
-        <m:mo><xsl:call-template name="insert1"/> <mchar name="NotElement"/> </m:mo>
-      </xsl:if>
-      <xsl:if test="*[1]=m:notsubset">
-        <m:mo> <xsl:call-template name="insert1"/> <mchar name="NotSubset"/> </m:mo>
-      </xsl:if>
-      <xsl:if test="*[1]=m:notprsubset">
-        <m:mo> <xsl:call-template name="insert1"/> <mchar name="NotSubsetEqual"/> </m:mo>
-      </xsl:if>
-      <xsl:apply-templates select = "*[3]" mode = "semantics"/>
-      <xsl:if test="*[1]=m:tendsto and m:tendsto[1][@type='below']">
-        <m:mo><xsl:call-template name="insert1"/>-</m:mo>
-      </xsl:if>
-      <xsl:if test="*[1]=m:tendsto and m:tendsto[1][@type='above']">
-        <m:mo><xsl:call-template name="insert1"/>+</m:mo>
-      </xsl:if>
-    </xsl:if>
-    <xsl:if test="*[1]=m:subset or *[1]=m:prsubset or *[1]=m:eq or *[1]=m:gt or *[1]=m:lt or *[1]=m:geq or *[1]=m:leq or *[1]=m:equivalent">
-      <xsl:apply-templates select = "*[2]" mode="semantics"/>
-      <xsl:for-each select = "*[position()>2]">
-        <xsl:if test="../*[self::m:subset][1]">
-          <m:mo> <xsl:call-template name="insert2"/> <mchar name="SubsetEqual"/> </m:mo>
-        </xsl:if>
-        <xsl:if test="../*[self::m:prsubset][1]">
-          <m:mo> <xsl:call-template name="insert2"/><mchar name="subset"/> </m:mo>
-        </xsl:if>
-        <xsl:if test="../*[self::m:eq][1]">
-          <m:mo><xsl:call-template name="insert2"/>=</m:mo>
-        </xsl:if>
-        <xsl:if test="../*[self::m:gt][1]">
-          <m:mo><xsl:call-template name="insert2"/>&gt;</m:mo>
-        </xsl:if>
-        <xsl:if test="../*[self::m:lt][1]">
-          <m:mo><xsl:call-template name="insert2"/>&lt;</m:mo>
-        </xsl:if>
-        <xsl:if test="../*[self::m:geq][1]">
-          <m:mo><xsl:call-template name="insert2"/> <mchar name="geq"/> </m:mo>
-        </xsl:if>
-        <xsl:if test="../*[self::m:leq][1]">
-          <m:mo><xsl:call-template name="insert2"/> <mchar name="leq"/> </m:mo>
-        </xsl:if>
-        <xsl:if test="../*[self::m:equivalent][1]">
-          <m:mo><xsl:call-template name="insert2"/> <mchar name="Congruent"/> </m:mo>
-        </xsl:if>
-        <xsl:apply-templates select = "." mode="semantics"/>
-      </xsl:for-each>
-    </xsl:if>
-  </m:mrow>
-</xsl:template>
-
-
-<!-- CALCULUS -->
-
-<xsl:template match = "m:apply[*[1][self::m:ln]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <xsl:choose>
-      <xsl:when test="parent::m:apply[m:power[1]]">
-        <m:msup>
-          <m:mo><xsl:call-template name="insert1"/>ln</m:mo>
-          <xsl:apply-templates select = "../*[3]" mode = "semantics"/>
-        </m:msup>
-      </xsl:when>
-      <xsl:otherwise>
-        <m:mo><xsl:call-template name="insert1"/>ln</m:mo>
-      </xsl:otherwise>
-    </xsl:choose>
-    <xsl:apply-templates select = "*[2]" mode = "semantics">
-      <xsl:with-param name="IN_PREC" select="$FUNCTION_PREC"/>
-    </xsl:apply-templates>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:log[1]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <xsl:choose>
-      <xsl:when test="parent::m:apply[m:power[1]]">
-        <xsl:if test="not(*[2]=m:logbase)">
-          <m:msup>
-            <m:mo><xsl:call-template name="insert1"/>log</m:mo>
-            <xsl:apply-templates select = "../*[3]" mode = "semantics"/>
-          </m:msup>
-        </xsl:if>
-        <xsl:if test="*[2]=m:logbase">
-          <m:msubsup>
-            <m:mo><xsl:call-template name="insert1"/>log</m:mo>
-            <xsl:apply-templates select = "../*[3]" mode = "semantics"/>
-            <xsl:apply-templates select = "m:logbase" mode = "semantics"/>
-          </m:msubsup>
-        </xsl:if>
-      </xsl:when>
-      <xsl:otherwise>
-        <xsl:if test="not(*[2]=m:logbase)">
-          <m:mo><xsl:call-template name="insert1"/>log</m:mo>
-        </xsl:if>
-        <xsl:if test="*[2]=m:logbase">
-          <m:msub>
-            <m:mo><xsl:call-template name="insert1"/>log</m:mo>
-            <xsl:apply-templates select = "m:logbase" mode = "semantics"/>
-          </m:msub>
-        </xsl:if>
-      </xsl:otherwise>
-    </xsl:choose>
-    <xsl:if test="*[2]=m:logbase">
-      <xsl:apply-templates select = "*[3]" mode = "semantics">
-        <xsl:with-param name="IN_PREC" select="$FUNCTION_PREC"/>
-      </xsl:apply-templates>
-    </xsl:if>
-    <xsl:if test="not(*[2]=m:logbase)">
-      <xsl:apply-templates select = "*[2]" mode = "semantics">
-        <xsl:with-param name="IN_PREC" select="$FUNCTION_PREC"/>
-      </xsl:apply-templates>
-    </xsl:if>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:diff[1]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <xsl:if test="*[2]=m:bvar and m:bvar[*[2]=m:degree]">
-      <m:mfrac><xsl:call-template name="insert1"/>
-        <m:msup>
-          <m:mo>d</m:mo>
-          <xsl:apply-templates select = "m:bvar/m:degree" mode = "semantics"/>
-        </m:msup>
-        <m:mrow>
-          <m:mo>d</m:mo>
-          <m:msup>
-            <xsl:apply-templates select = "m:bvar/*[1]" mode = "semantics"/>
-            <xsl:apply-templates select = "m:bvar/m:degree" mode = "semantics"/>
-          </m:msup>
-        </m:mrow>
-      </m:mfrac>
-    </xsl:if>
-    <xsl:if test="*[2]=m:bvar and not(m:bvar[*[2]=m:degree])">
-      <m:mfrac><xsl:call-template name="insert1"/>
-        <m:mo>d</m:mo>
-        <m:mrow>
-          <m:mo>d</m:mo>
-          <xsl:apply-templates select = "m:bvar/*[1]" mode = "semantics"/>
-        </m:mrow>
-      </m:mfrac>
-    </xsl:if>
-    <xsl:apply-templates select = "*[3]" mode = "semantics"/>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:partialdiff[1]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <xsl:for-each select = "m:bvar">
-      <xsl:if test="*[last()]=m:degree">
-        <m:mfrac><xsl:call-template name="insert1"/>
-          <m:msup>
-             <m:mo>d</m:mo>
-             <xsl:apply-templates select = "m:degree" mode = "semantics"/>
-          </m:msup>
-          <m:mrow>
-            <m:mo>d</m:mo>
-            <m:msup>
-              <xsl:apply-templates select = "*[1]" mode = "semantics"/>
-              <xsl:apply-templates select = "m:degree" mode = "semantics"/>
-            </m:msup>
-          </m:mrow>
-        </m:mfrac>
-      </xsl:if>
-      <xsl:if test="not(*[last()]=m:degree)">
-        <m:mfrac><xsl:call-template name="insert1"/>
-          <m:mo>d</m:mo>
-          <m:mrow>
-            <m:mo>d</m:mo>
-            <xsl:apply-templates select = "*[1]" mode = "semantics"/>
-          </m:mrow>
-        </m:mfrac>
-      </xsl:if>
-    </xsl:for-each>
-    <xsl:apply-templates select = "*[last()]" mode = "semantics"/>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:lowlimit | m:uplimit | m:bvar | m:degree | m:logbase">
-  <xsl:apply-templates mode = "semantics"/>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:divergence[1] | m:grad[1] | m:curl[1]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <xsl:if test="*[1]=m:divergence">
-      <m:mo><xsl:call-template name="insert1"/>div</m:mo>
-    </xsl:if>
-    <xsl:if test="*[1]=m:grad">
-    <m:mo><xsl:call-template name="insert1"/>grad</m:mo>
-    </xsl:if>
-    <xsl:if test="*[1]=m:curl">
-    <m:mo><xsl:call-template name="insert1"/>curl</m:mo>
-    </xsl:if>
-    <xsl:choose>
-      <xsl:when test="*[2]=m:ci">
-        <xsl:apply-templates select = "*[2]" mode = "semantics"/>
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-          <xsl:apply-templates select = "*[2]" mode = "semantics"/>
-        </m:mfenced>
-      </xsl:otherwise>
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-
-<xsl:template match = "m:apply[m:laplacian[1]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <m:msup><xsl:call-template name="insert1"/>
-      <m:mo> &#x0394; </m:mo>
-      <m:mn>2</m:mn>
-    </m:msup>
-    <xsl:apply-templates select = "*[2]" mode = "semantics"/>
-  </m:mrow>
-</xsl:template>
-
-
-<!-- SET THEORY -->
-
-<xsl:template match = "m:set | m:list">
-  <m:mfenced open="{{" close="}}" separators="">
-    <xsl:call-template name="insert_xref"/>
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-      <xsl:apply-templates select="m:condition" mode = "semantics"/>
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-    <xsl:if test="*[1]=m:condition and not(child::m:bvar)">
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-      <m:mo>|</m:mo>
-      <xsl:apply-templates select="m:condition" mode = "semantics"/>
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-    <xsl:if test="not(child::m:bvar) and not(child::m:condition)">
-      <m:mfenced open="" close="" separators=",">
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-          <xsl:apply-templates select = "." mode="semantics"/>
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-      </m:mfenced>
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-
-<xsl:template match = "m:apply[m:union[1]]">
-  <xsl:param name="IN_PREC" select="$NO_PREC"/>
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:choose>
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-      <m:mfenced separators="" helm:xref="{@helm:xref}">
-        <xsl:call-template name="insert_xref"/>
-        <xsl:apply-templates select="." mode="union">
-          <xsl:with-param name="PARAM" select="$PARAM"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
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-    <xsl:when test="$IN_PREC &gt; $NO_PREC and $IN_PREC &lt; $FUNCTION_PREC and not($SEM_SW=2)">
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-        <xsl:with-param name="PAREN" select="$PAREN"/>
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-        <xsl:call-template name="insert_xref"/>
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-          <xsl:with-param name="PAREN" select="$PAREN"/>
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-
-<xsl:template match = "m:apply[m:union[1]]" mode="union">
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:apply-templates select = "*[2]" mode="semantics">
-    <xsl:with-param name="IN_PREC" select="$UNION_PREC"/>
-    <xsl:with-param name="PARAM" select="$PARAM"/>
-    <xsl:with-param name="PAREN" select="$PAREN"/>
-    <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-  </xsl:apply-templates>
-  <xsl:for-each select = "*[position()>2]">
-    <m:mo><xsl:call-template name="insert2"/> <mchar name="Union"/> </m:mo>
-    <xsl:apply-templates select = "." mode="semantics">
-      <xsl:with-param name="IN_PREC" select="$UNION_PREC"/>
-      <xsl:with-param name="PAREN" select="$PAREN"/>
-      <xsl:with-param name="PAR_NO_IGNORE" select="$NO"/>
-    </xsl:apply-templates>
-  </xsl:for-each>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:intersect[1]]">
-  <xsl:param name="IN_PREC" select="$NO_PREC"/>
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:choose>
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-      <m:mfenced separators="" helm:xref="{@helm:xref}">
-        <xsl:call-template name="insert_xref"/>
-        <xsl:apply-templates select="." mode="intersect">
-          <xsl:with-param name="PARAM" select="$PARAM"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
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-    <xsl:when test="$IN_PREC &gt; $NO_PREC and $IN_PREC &lt; $FUNCTION_PREC and not($SEM_SW=2)">
-      <xsl:apply-templates select="." mode="intersect">
-        <xsl:with-param name="PARAM" select="$PARAM"/>
-        <xsl:with-param name="PAREN" select="$PAREN"/>
-        <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
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-        <xsl:call-template name="insert_xref"/>
-        <xsl:apply-templates select="." mode="intersect">
-          <xsl:with-param name="PARAM" select="$PARAM"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
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-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:intersect[1]]" mode="intersect">
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
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-    <xsl:with-param name="IN_PREC" select="$INTERSECT_PREC"/>
-    <xsl:with-param name="PARAM" select="$PARAM"/>
-    <xsl:with-param name="PAREN" select="$PAREN"/>
-    <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-  </xsl:apply-templates>
-  <xsl:for-each select = "*[position()>2]">
-    <m:mo><xsl:call-template name="insert2"/> <mchar name="Intersection"/> </m:mo>
-    <xsl:apply-templates select = "." mode="semantics">
-      <xsl:with-param name="IN_PREC" select="$INTERSECT_PREC"/>
-      <xsl:with-param name="PAREN" select="$PAREN"/>
-      <xsl:with-param name="PAR_NO_IGNORE" select="$NO"/>
-    </xsl:apply-templates>
-  </xsl:for-each>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:setdiff[1]]">
-  <xsl:param name="IN_PREC" select="$NO_PREC"/>
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:choose>
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-      <m:mfenced separators="">
-        <xsl:call-template name="insert_xref"/>
-        <xsl:apply-templates select="." mode="setdiff">
-          <xsl:with-param name="PARAM" select="$PARAM"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
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-    <xsl:when test="$IN_PREC &gt; $NO_PREC and $IN_PREC &lt; $FUNCTION_PREC and not($SEM_SW=2)">
-      <xsl:apply-templates select="." mode="setdiff">
-        <xsl:with-param name="PARAM" select="$PARAM"/>
-        <xsl:with-param name="PAREN" select="$PAREN"/>
-        <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
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-    <xsl:otherwise>
-      <m:mrow>
-        <xsl:call-template name="insert_xref"/>
-        <xsl:apply-templates select="." mode="setdiff">
-          <xsl:with-param name="PARAM" select="$PARAM"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
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-      </m:mrow>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:setdiff[1]]" mode="setdiff">
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:apply-templates select = "*[2]" mode = "semantics">
-    <xsl:with-param name="IN_PREC" select="$SETDIFF_PREC"/>
-    <xsl:with-param name="PARAM" select="$PARAM"/>
-    <xsl:with-param name="PAREN" select="$PAREN"/>
-    <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-  </xsl:apply-templates>
-  <m:mo><xsl:call-template name="insert1"/>\</m:mo>
-  <xsl:apply-templates select = "*[3]" mode = "semantics">
-    <xsl:with-param name="IN_PREC" select="$SETDIFF_PREC"/>
-    <xsl:with-param name="PARAM" select="$PAR_SAME"/>
-    <xsl:with-param name="PAREN" select="$PAREN"/>
-    <xsl:with-param name="PAR_NO_IGNORE" select="$NO"/>
-  </xsl:apply-templates>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:card[1]]">
-  <m:mfenced open="|" close="|" separators=",">
-    <xsl:call-template name="insert_xref"/>
-    <xsl:for-each select = "*[position()>1]">
-      <xsl:apply-templates select = "." mode="semantics"/>
-    </xsl:for-each>
-  </m:mfenced>
-</xsl:template>
-
-
-<!-- SEQUENCES AND SERIES -->
-
-<xsl:template match = "m:apply[m:sum[1] | m:product[1]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <xsl:choose>
-      <xsl:when test="*[2]=m:bvar and m:lowlimit and m:uplimit">
-        <m:munderover>
-          <xsl:if test="*[1]=m:sum">
-            <m:mo><xsl:call-template name="insert1"/> <mchar name="Sum"/> </m:mo>
-          </xsl:if>
-          <xsl:if test="*[1]=m:product">
-            <m:mo><xsl:call-template name="insert1"/> <mchar name="Product"/> </m:mo>
-          </xsl:if>
-          <m:mrow>
-            <xsl:apply-templates select = "*[2]" mode = "semantics"/>
-            <m:mo>=</m:mo>
-            <xsl:apply-templates select = "m:lowlimit" mode = "semantics"/>
-          </m:mrow>
-          <xsl:apply-templates select = "m:uplimit" mode = "semantics"/>
-        </m:munderover>
-        <xsl:apply-templates select = "*[5]" mode = "semantics"/>
-      </xsl:when>
-      <xsl:when test="*[2]=m:bvar and *[3]=m:condition">
-        <m:munder>
-          <xsl:if test="*[1]=m:sum">
-            <m:mo><xsl:call-template name="insert1"/> <mchar name="Sum"/> </m:mo>
-          </xsl:if>
-          <xsl:if test="*[1]=m:product">
-            <m:mo><xsl:call-template name="insert1"/> <mchar name="Product"/> </m:mo>
-          </xsl:if>
-          <xsl:apply-templates select = "*[3]" mode = "semantics"/>
-        </m:munder>
-        <xsl:apply-templates select = "*[4]" mode = "semantics"/>
-      </xsl:when>
-    </xsl:choose>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:limit[1]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <m:munder>
-      <m:mo><xsl:call-template name="insert1"/>lim</m:mo>
-      <m:mrow>
-        <xsl:if test="*[2]=m:bvar and *[3]=m:lowlimit">
-            <xsl:apply-templates select = "*[2]" mode = "semantics"/>
-            <m:mo> <mchar name="RightArrow"/> </m:mo>
-            <xsl:apply-templates select = "*[3]" mode = "semantics"/>
-        </xsl:if>
-        <xsl:if test="*[2]=m:bvar and *[3]=m:condition">
-          <xsl:apply-templates select = "*[3]" mode = "semantics"/>
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-    </m:munder>
-    <xsl:apply-templates select = "*[4]" mode = "semantics"/>
-  </m:mrow>
-</xsl:template>
-
-
-<!-- TRIGONOMETRY -->
-
-<xsl:template match = "m:apply[*[1][self::m:sin | self::m:cos | self::m:tan | self::m:sec | self::m:csc | self::m:cot | self::m:sinh | self::m:cosh | self::m:tanh | self::m:sech | self::m:csch | self::m:coth | self::m:arcsin | self::m:arccos | self::m:arctan]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <xsl:if test="not(parent::m:apply[m:power[1]])">
-      <xsl:apply-templates select = "*[1]" mode = "trigonometry"/>
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-    <xsl:if test="parent::m:apply[m:power[1]]">
-      <m:msup>
-        <xsl:apply-templates select = "*[1]" mode = "trigonometry"/>
-        <xsl:apply-templates select = "../*[3]" mode = "semantics"/>
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-    <xsl:apply-templates select = "*[2]" mode = "semantics">
-      <xsl:with-param name="IN_PREC" select="$FUNCTION_PREC"/>
-      <xsl:with-param name="PAR_NO_IGNORE" select="$NO"/>
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-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:*" mode = "trigonometry">
-    <xsl:choose>
-      <xsl:when test="self::m:sin">
-        <m:mo>sin</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:cos">
-        <m:mo>cos</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:tan">
-        <m:mo>tan</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:sec">
-        <m:mo>sec</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:csc">
-        <m:mo>csc</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:cot">
-        <m:mo>cot</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:sinh">
-        <m:mo>sinh</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:cosh">
-        <m:mo>cosh</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:tanh">
-        <m:mo>tanh</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:sech">
-        <m:mo>sech</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:csch">
-        <m:mo>csch</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:coth">
-        <m:mo>coth</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:arcsin">
-        <m:mo>arcsin</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:arccos">
-        <m:mo>arccos</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:arctan">
-        <m:mo>arctan</m:mo>
-      </xsl:when>
-    </xsl:choose>
-</xsl:template>
-
-
-<!-- STATISTICS -->
-
-<xsl:template match = "m:apply[m:mean[1]]">
-  <m:mfenced open="&lt;" close="&gt;" separators=",">
-    <xsl:call-template name="insert_xref"/>
-    <xsl:for-each select = "*[position()>1]">
-      <xsl:apply-templates select = "." mode="semantics"/>
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-
-<xsl:template match = "m:apply[m:sdev[1]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <m:mo><xsl:call-template name="insert1"/> &#x03c3; </m:mo>
-    <m:mfenced separators=",">
-      <xsl:for-each select = "*[position()>1]">
-        <xsl:apply-templates select = "." mode="semantics"/>
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-
-<xsl:template match = "m:apply[m:variance[1]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <m:mo><xsl:call-template name="insert1"/> &#x03c3; </m:mo>
-    <m:msup>
-      <m:mfenced separators=",">
-        <xsl:for-each select = "*[position()>1]">
-          <xsl:apply-templates select = "." mode="semantics"/>
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-      <m:mn>2</m:mn>
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-
-<xsl:template match = "m:apply[m:median[1]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <m:mo><xsl:call-template name="insert1"/>median</m:mo>
-    <m:mfenced separators=",">
-      <xsl:for-each select = "*[position()>1]">
-        <xsl:apply-templates select = "." mode="semantics"/>
-      </xsl:for-each>
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-  </m:mrow>
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-
-<xsl:template match = "m:apply[m:mode[1]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <m:mo><xsl:call-template name="insert1"/>mode</m:mo>
-    <m:mfenced separators=",">
-      <xsl:for-each select = "*[position()>1]">
-        <xsl:apply-templates select = "." mode="semantics"/>
-      </xsl:for-each>
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-  </m:mrow>
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-
-<xsl:template match = "m:apply[m:moment[1]]">
-  <xsl:call-template name="insert_xref"/>
-  <m:mfenced open="&lt;" close="&gt;" separators="">
-    <xsl:if test="*[2]=m:degree">
-      <m:msup>
-        <xsl:apply-templates select="*[3]" mode = "semantics"/>
-        <xsl:apply-templates select="*[2]" mode = "semantics"/>
-      </m:msup>
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-    <xsl:if test="not(*[2]=m:degree)">
-      <xsl:for-each select = "*[position()>1]">
-        <xsl:apply-templates select = "." mode="semantics"/>
-      </xsl:for-each>
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-
-
-<!-- LINEAR ALGEBRA -->
-
-<xsl:template match="m:vector">
-  <m:mfenced separators="">
-    <m:mtable>
-      <xsl:for-each select="*">
-        <m:mtd>
-          <xsl:apply-templates select="." mode = "semantics"/>
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-  </m:mfenced>
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-
-<xsl:template match = "m:matrix">
-  <m:mfenced separators="">
-    <m:mtable>
-      <xsl:apply-templates mode = "semantics"/>
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-  </m:mfenced>
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-
-<xsl:template match = "m:matrixrow">
-  <m:mtr>
-    <xsl:for-each select="*">
-      <m:mtd>
-        <xsl:apply-templates select="." mode = "semantics"/>
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-</xsl:template>
-
-<xsl:template match = "m:apply[m:determinant[1]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <m:mo><xsl:call-template name="insert1"/>det</m:mo>
-    <xsl:apply-templates select = "*[2]" mode = "semantics"/>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:transpose[1]]">
-  <m:msup>
-    <xsl:apply-templates select = "*[2]" mode = "semantics"/>
-    <m:mo>T</m:mo>
-  </m:msup>
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-
-<xsl:template match = "m:apply[m:selector[1]]">
-  <xsl:if test="*[2]=m:matrix and *[3]=m:cn">
-      <xsl:variable name="m" select = "*[3]"/>
-      <xsl:choose>
-        <xsl:when test="*[4]=m:cn">
-          <xsl:variable name="n" select = "*[4]"/>
-          <xsl:copy-of select = "m:matrix/*[position()=$m]/*[position()=$n]"/>
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-        <xsl:otherwise>
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-  <xsl:if test="(*[2]=m:vector or *[2]=m:list) and *[3]=m:cn">
-    <xsl:variable name="m" select = "*[3]"/>
-    <xsl:copy-of select = "*[2]/*[position()=$m]"/>
-  </xsl:if>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:vectorproduct[1] | m:scalarproduct[1] | m:outerproduct[1]]">
-  <m:mrow>
-    <xsl:call-template name="insert_xref"/>
-    <xsl:apply-templates select="*[2]" mode = "semantics"/>
-    <xsl:choose>
-      <xsl:when test="m:vectorproduct[1]">
-        <m:mo><xsl:call-template name="insert1"/> <mchar name="Cross"/> </m:mo>
-      </xsl:when>
-      <xsl:when test="m:scalarproduct[1] | m:outerproduct[1]">
-        <m:mo><xsl:call-template name="insert1"/>.</m:mo>
-      </xsl:when>
-    </xsl:choose>
-    <xsl:apply-templates select="*[3]" mode = "semantics"/>
-  </m:mrow>
-</xsl:template>
-
-</xsl:stylesheet>
diff --git a/helm/style/style_prima_del_linguaggio_naturale/mml2mmlv1_0_original.xsl b/helm/style/style_prima_del_linguaggio_naturale/mml2mmlv1_0_original.xsl
deleted file mode 100644
index 44c34df74..000000000
--- a/helm/style/style_prima_del_linguaggio_naturale/mml2mmlv1_0_original.xsl
+++ /dev/null
@@ -1,1848 +0,0 @@
-<?xml version="1.0"?>
-
-<!-- ====================================================== -->
-<!-- XSL Transform of MathML content to MathML presentation -->
-<!--    By Igor Rodionov, Computer Science Department of    -->
-<!--   the University of Western Ontario, London, Canada    -->
-<!--  Complies with the W3C Working Draft from Dec.3, 1999  -->
-<!--             Version x.xx from Feb. 18, 2000            -->
-<!--              Comments to:  igor@csd.uwo.ca             -->
-<!--                                                        -->
-<!-- (C) Copyright 1999, 2000 Symbolic Computation          -->
-<!--     Laboratory, University of Western Ontario.         -->
-<!-- ====================================================== -->
-
-<!-- ====================================================== -->
-<!--  May 11, 2000 - HELM group:                            -->
-<!--  Added the namespace prefix to all the output elements -->
-<!--  Changed the mml prefix into m                         -->
-<!--  Swapped math element out of the semantic element      -->
-<!--  Added the declaration of the xlink namespace          --> 
-<!-- ====================================================== -->
-
-<xsl:stylesheet id="mml2mml"
-                version="1.0"
-                xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                xmlns:m="http://www.w3.org/1998/Math/MathML"
-                xmlns:xlink="http://www.w3.org/1999/xlink">
-
-<xsl:output method="xml" indent="yes" encoding="iso-8859-1"/>
-
-<!-- ***************************************************** -->
-<!--  Parameters affectin' stylesheet's run-time behavior  -->
-<!-- ***************************************************** -->
-
-<!-- SEM_SW: -1 - strip off all semantics
-             0  - pass semantics "as is" (default)
-             1  - add semantics at top level only
-             2  - add semantics at all levels
-             3  - semantics at top level with cross-references
--->
-<!-- HELM: SEM_SW was 0 -->
-<xsl:param name="SEM_SW" select="1"/>
-
-<!-- Miscellaneous Variable Definitions -->
-
-<xsl:variable name="NO" select="0"/>
-<xsl:variable name="YES" select="1"/>
-<xsl:variable name="PAR_NO" select="-7"/>
-<xsl:variable name="PAR_YES" select="-5"/>
-<xsl:variable name="PAR_SAME" select="-3"/>
-<xsl:variable name="NO_PARAM" select="-1"/>
-
-<!-- Operator Precedence Definitions -->
-
-<xsl:variable name="NO_PREC" select="0"/>
-<xsl:variable name="UNION_PREC" select="1"/>
-<xsl:variable name="SETDIFF_PREC" select="1"/>
-<xsl:variable name="INTERSECT_PREC" select="3"/>
-<xsl:variable name="OR_PREC" select="5"/>
-<xsl:variable name="XOR_PREC" select="5"/>
-<xsl:variable name="AND_PREC" select="7"/>
-<xsl:variable name="PLUS_PREC" select="9"/>
-<xsl:variable name="MINUS_PREC" select="9"/>
-<xsl:variable name="MUL_PREC" select="11"/>
-<xsl:variable name="DIV_PREC" select="11"/>
-<xsl:variable name="NEG_PREC" select="13"/>
-<xsl:variable name="FUNCTION_PREC" select="99"/>
-
-
-<!-- THE TOPMOST ELEMENT: MATH -->
-
-<xsl:template match = "m:math">
-  <xsl:choose>
-    <xsl:when test="$SEM_SW>0">
-<!-- HELM: deleted math (we have already inserted at object level) -->
-     <!--<m:math>-->
-      <m:semantics>
-          <xsl:apply-templates mode = "semantics"/>
-       <m:annotation-xml encoding="MathML">
-          <xsl:copy-of select = "*"/>
-       </m:annotation-xml>
-      </m:semantics>
-     <!--</m:math>-->
-    </xsl:when>
-    <xsl:otherwise>
-      <!--<m:math>-->
-        <xsl:apply-templates mode = "semantics"/>
-      <!--</m:math>-->  
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<!-- SEMANTICS -->
-
-<xsl:template match = "m:*" mode = "semantics">
-  <xsl:param name="IN_PREC" select="$NO_PREC"/>
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:choose>
-    <xsl:when test="$SEM_SW=-1 and self::m:semantics">
-      <xsl:apply-templates select="*[1]">
-        <xsl:with-param name="IN_PREC" select="$IN_PREC"/>
-        <xsl:with-param name="PARAM" select="$PARAM"/>
-        <xsl:with-param name="PAREN" select="$PAREN"/>
-        <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-      </xsl:apply-templates>
-    </xsl:when>
-    <xsl:when test="$SEM_SW=0 and self::m:semantics">
-      <m:semantics>
-        <xsl:apply-templates select="*[1]">
-          <xsl:with-param name="IN_PREC" select="$IN_PREC"/>
-          <xsl:with-param name="PARAM" select="$PARAM"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-        <xsl:copy-of select="m:annotation-xml"/>
-      </m:semantics>
-    </xsl:when>
-    <xsl:when test="$SEM_SW=2">
-      <m:semantics>
-        <xsl:choose>
-          <xsl:when test="self::m:semantics">
-            <xsl:apply-templates select="*[1]">
-              <xsl:with-param name="IN_PREC" select="$IN_PREC"/>
-              <xsl:with-param name="PARAM" select="$PARAM"/>
-              <xsl:with-param name="PAREN" select="$PAREN"/>
-              <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-            </xsl:apply-templates>
-            <xsl:copy-of select="m:annotation-xml"/>
-          </xsl:when>
-          <xsl:otherwise>
-            <xsl:apply-templates select=".">
-              <xsl:with-param name="IN_PREC" select="$IN_PREC"/>
-              <xsl:with-param name="PARAM" select="$PARAM"/>
-              <xsl:with-param name="PAREN" select="$PAREN"/>
-              <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-            </xsl:apply-templates>
-            <m:annotation-xml encoding="MathML">
-              <xsl:copy-of select="."/>
-            </m:annotation-xml>
-          </xsl:otherwise>
-        </xsl:choose>
-      </m:semantics>
-    </xsl:when>
-    <xsl:when test="$SEM_SW=3 and @id">
-      <m:mrow idref="{@id}">
-        <xsl:apply-templates select=".">
-          <xsl:with-param name="IN_PREC" select="$IN_PREC"/>
-          <xsl:with-param name="PARAM" select="$PARAM"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mrow>
-    </xsl:when>
-    <xsl:otherwise>
-      <xsl:apply-templates select=".">
-        <xsl:with-param name="IN_PREC" select="$IN_PREC"/>
-        <xsl:with-param name="PARAM" select="$PARAM"/>
-        <xsl:with-param name="PAREN" select="$PAREN"/>
-        <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-      </xsl:apply-templates>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:semantics">
-  <xsl:apply-templates select="*[1]" mode = "semantics"/>
-</xsl:template>
-
-
-<!-- BASIC ELEMENTS -->
-
-<xsl:template match = "m:cn">
-  <xsl:param name="IN_PREC" select="$NO_PREC"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:choose>
-    <xsl:when test=". &lt; 0 and $IN_PREC &gt; 0 and $PAREN=$PAR_NO and $PAR_NO_IGNORE=$NO">
-      <m:mfenced separators="">
-        <xsl:apply-templates select="." mode="cn"/>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:otherwise>
-      <xsl:apply-templates select="." mode="cn"/>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:cn" mode="cn">
-  <xsl:choose>
-    <xsl:when test="@base and (not(@type) or @type='integer' or @type='real')">
-      <m:msub>
-        <m:mn> <xsl:apply-templates mode = "semantics"/> </m:mn>
-        <m:mn> <xsl:value-of select="@base"/> </m:mn>
-      </m:msub>
-    </xsl:when>
-    <xsl:when test="@type='complex' and not(@base) and child::m:sep[1]">
-      <m:mfenced separators="">
-        <m:mn> <xsl:apply-templates select="text()[1]" mode = "semantics"/> </m:mn>
-        <xsl:if test="text()[2] &lt; 0">
-          <m:mo>-</m:mo>
-          <m:mn> <xsl:value-of select="-text()[2]"/> </m:mn>
-        </xsl:if>
-        <xsl:if test="not(text()[2] &lt; 0)">
-          <m:mo>+</m:mo>
-          <xsl:apply-templates select="text()[2]" mode = "semantics"/>
-        </xsl:if>
-        <m:mo> <mchar name="InvisibleTimes"/> </m:mo>
-        <m:mo>i</m:mo>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:when test="@type='complex' and @base and child::m:sep[1]">
-      <m:msub>
-        <m:mfenced separators="">
-          <m:mn> <xsl:apply-templates select="text()[1]" mode = "semantics"/> </m:mn>
-          <xsl:if test="text()[2] &lt; 0">
-            <m:mo>-</m:mo>
-            <m:mn> <xsl:value-of select="-text()[2]"/> </m:mn>
-          </xsl:if>
-          <xsl:if test="not(text()[2] &lt; 0)">
-            <m:mo>+</m:mo>
-            <m:mn> <xsl:apply-templates select="text()[2]" mode = "semantics"/> </m:mn>
-          </xsl:if>
-          <m:mo> <mchar name="InvisibleTimes"/> </m:mo>
-          <m:mo>i</m:mo>
-        </m:mfenced>
-        <m:mn> <xsl:value-of select="@base"/> </m:mn>
-      </m:msub>
-    </xsl:when>
-    <xsl:when test="@type='rational' and not(@base) and child::m:sep[1]">
-      <m:mrow>
-        <m:mn> <xsl:apply-templates select="text()[1]" mode = "semantics"/> </m:mn>
-        <m:mo>/</m:mo>
-        <m:mn> <xsl:apply-templates select="text()[2]" mode = "semantics"/> </m:mn>
-      </m:mrow>
-    </xsl:when>
-    <xsl:when test="@type='rational' and @base and child::m:sep[1]">
-      <m:msub>
-        <m:mfenced separators="">
-          <m:mn> <xsl:apply-templates select="text()[1]" mode = "semantics"/> </m:mn>
-          <m:mo>/</m:mo>
-          <m:mn> <xsl:apply-templates select="text()[2]" mode = "semantics"/> </m:mn>
-        </m:mfenced>
-        <m:mn> <xsl:value-of select="@base"/> </m:mn>
-      </m:msub>
-    </xsl:when>
-    <xsl:when test="@type='polar' and not(@base) and child::m:sep[1]">
-      <m:mrow>
-        <m:mo>Polar</m:mo>
-        <m:mfenced separators=",">
-          <m:mn> <xsl:apply-templates select="text()[1]" mode = "semantics"/> </m:mn>
-          <m:mn> <xsl:apply-templates select="text()[2]" mode = "semantics"/> </m:mn>
-        </m:mfenced>
-      </m:mrow>
-    </xsl:when>
-    <xsl:when test="@type='polar' and @base and child::m:sep[1]">
-      <m:msub>
-        <m:mrow>
-          <m:mo>Polar</m:mo>
-          <m:mfenced separators=",">
-            <m:mn> <xsl:apply-templates select="text()[1]" mode = "semantics"/> </m:mn>
-            <m:mn> <xsl:apply-templates select="text()[2]" mode = "semantics"/> </m:mn>
-          </m:mfenced>
-        </m:mrow>
-        <m:mn> <xsl:value-of select="@base"/> </m:mn>
-      </m:msub>
-   </xsl:when>
-    <xsl:otherwise>
-      <m:mn> <xsl:apply-templates mode = "semantics"/> </m:mn>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:ci">
-  <xsl:choose>
-    <xsl:when test="@type='vector' or @type=matrix or @type=set">
-      <m:mi fontweight="bold"> <xsl:apply-templates mode = "semantics"/> </m:mi>
-    </xsl:when>
-    <xsl:otherwise>
-<!-- HELM: aggiunta choose temporanea per HREF invece di:
-<m:mi> <xsl:apply-templates mode = "semantics"/> </m:mi>-->
-     <xsl:choose>
-     <xsl:when test="string(@definitionURL) = &quot;&quot;">
-      <m:mi> <xsl:apply-templates mode = "semantics"/> </m:mi>
-     </xsl:when>
-     <xsl:otherwise>
-      <m:mi xlink:href="{@definitionURL}"> <xsl:apply-templates mode = "semantics"/> </m:mi>
-     </xsl:otherwise>
-     </xsl:choose>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:csymbol">
-  <xsl:choose>
-    <xsl:when test="*[1]">
-      <xsl:copy-of select = "*"/>
-    </xsl:when>
-    <xsl:otherwise>
-      <m:mo> <xsl:apply-templates mode = "semantics"/> </m:mo>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-
-<!-- BASIC CONTENT ELEMENTS -->
-
-<xsl:template match = "m:apply[m:fn[1]]">
-  <m:mrow>
-    <xsl:apply-templates select = "m:fn[1]" mode = "semantics"/>
-    <m:mfenced separators=",">
-      <xsl:apply-templates select = "*[position()>1]" mode = "semantics"/>
-    </m:mfenced>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:fn">
-  <xsl:apply-templates select = "*[1]" mode = "semantics">
-    <xsl:with-param name="IN_PREC" select="$FUNCTION_PREC"/>
-  </xsl:apply-templates>
-</xsl:template>
-
-<xsl:template match = "m:interval">
-  <xsl:choose>
-    <xsl:when test="@closure='closed'">
-      <m:mfenced open="[" close="]" separators=",">
-        <xsl:apply-templates mode = "semantics"/>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:when test="@closure='open'">
-      <m:mfenced separators=",">
-        <xsl:apply-templates mode = "semantics"/>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:when test="@closure='open-closed'">
-      <m:mfenced open="(" close="]" separators=",">
-        <xsl:apply-templates mode = "semantics"/>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:when test="@closure='closed-open'">
-      <m:mfenced open="[" close=")" separators=",">
-        <xsl:apply-templates mode = "semantics"/>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:otherwise>
-      <m:mfenced open="[" close="]" separators=",">
-        <xsl:apply-templates mode = "semantics"/>
-      </m:mfenced>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:*[1][self::m:apply[m:inverse[1]]]]">
-  <m:mrow>
-    <xsl:apply-templates select = "*[1]" mode = "semantics"/>
-    <m:mfenced separators=",">
-      <xsl:apply-templates select = "*[position()>1]" mode = "semantics"/>
-    </m:mfenced>
- </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[*[1][self::m:inverse]]">
-  <xsl:choose>
-    <xsl:when test="*[2]=m:exp">
-      <m:mo>ln</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:ln | m:log">
-      <m:mo>exp</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:sin">
-      <m:mo>arcsin</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:cos">
-      <m:mo>arccos</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:tan">
-      <m:mo>arctan</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:sec">
-      <m:mo>arcsec</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:csc">
-      <m:mo>arccsc</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:cot">
-      <m:mo>arccot</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:sinh">
-      <m:mo>arcsinh</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:cosh">
-      <m:mo>arccosh</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:tanh">
-      <m:mo>arctanh</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:sech">
-      <m:mo>arcsech</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:csch">
-      <m:mo>arccsch</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:coth">
-      <m:mo>arccoth</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:arcsin">
-      <m:mo>sin</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:arccos">
-      <m:mo>cos</m:mo>
-    </xsl:when>
-    <xsl:when test="*[2]=m:arctan">
-      <m:mo>tan</m:mo>
-    </xsl:when>
-    <xsl:otherwise>
-      <m:msup>
-        <xsl:apply-templates select = "*[2]" mode = "semantics"/>
-        <m:mfenced>
-          <m:mn>-1</m:mn>
-        </m:mfenced>
-      </m:msup>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:sep"/>
-
-<xsl:template match = "m:condition">
-  <xsl:choose>
-    <xsl:when test="parent::m:apply[m:forall[1]]"/>
-    <xsl:otherwise>
-      <xsl:if test="not(*[2])">
-        <xsl:apply-templates mode = "semantics"/>
-      </xsl:if>
-      <xsl:if test="*[2]">
-        <m:mrow>
-          <xsl:apply-templates mode = "semantics"/>
-        </m:mrow>
-      </xsl:if>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:declare"/>
-
-<xsl:template match = "m:lambda">
-  <m:mrow>
-    <m:mo> &#x039b; </m:mo>
-    <m:mfenced separators=",">
-      <xsl:for-each select = "*">
-        <xsl:choose>
-          <xsl:when test="self::m:ci or self::m:cn">
-            <xsl:apply-templates select = "." mode="semantics"/>
-          </xsl:when>
-          <xsl:otherwise>
-            <m:mrow>
-              <xsl:apply-templates select = "." mode="semantics"/>
-            </m:mrow>
-          </xsl:otherwise>
-        </xsl:choose>
-      </xsl:for-each>
-    </m:mfenced>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:*[1][self::m:apply[m:compose[1]]]]">
-  <m:mrow>
-    <xsl:apply-templates select = "*[1]" mode = "semantics"/>
-    <m:mfenced separators=",">
-      <xsl:apply-templates select = "*[position()>1]" mode = "semantics"/>
-    </m:mfenced>
- </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[*[1][self::m:compose]]">
-  <m:mfenced separators="">
-    <xsl:apply-templates select = "m:*[2][self::m:ci[@type='fn'] | self::m:fn]" mode="semantics"/>
-    <xsl:for-each select = "m:*[position()>2][self::m:ci[@type='fn'] | self::m:fn]">
-      <m:mo> <mchar name="SmallCircle"/> </m:mo>
-      <xsl:apply-templates select = "." mode="semantics"/>
-    </xsl:for-each>
-  </m:mfenced>
-</xsl:template>
-
-<xsl:template match = "m:ident">
-  <m:mo>id</m:mo>
-</xsl:template>
-
-
-<!-- ARITHMETIC, ALGEBRA & LOGIC -->
-
-<xsl:template match = "m:apply[m:quotient[1]]">
-  <m:mfenced open="&#x230a;" close="&#x230b;" separators="">
-    <xsl:apply-templates select="*[2]" mode = "semantics">
-      <xsl:with-param name="IN_PREC" select="$FUNCTION_PREC"/>
-    </xsl:apply-templates>
-    <m:mo>/</m:mo>
-    <xsl:apply-templates select="*[3]" mode = "semantics">
-      <xsl:with-param name="IN_PREC" select="$FUNCTION_PREC"/>
-      <xsl:with-param name="PAR_NO_IGNORE" select="$NO"/>
-    </xsl:apply-templates>
-  </m:mfenced>
-</xsl:template>
-
-<xsl:template match = "m:apply[*[1][self::m:exp]]">
-  <m:msup>
-    <m:mo>e</m:mo>
-    <xsl:apply-templates select = "*[2]" mode = "semantics"/>
-  </m:msup>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:factorial[1]]">
-  <m:mrow>
-    <xsl:apply-templates select = "*[2]" mode = "semantics">
-      <xsl:with-param name="IN_PREC" select="$FUNCTION_PREC"/>
-      <xsl:with-param name="PAR_NO_IGNORE" select="$NO"/>
-    </xsl:apply-templates>
-    <m:mo>!</m:mo>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:max[1] | m:min[1]]">
-  <m:mrow>
-    <xsl:if test="*[2]=m:bvar">
-      <m:munder>
-        <xsl:if test="*[1]=m:max">
-          <m:mo>max</m:mo>
-        </xsl:if>
-        <xsl:if test="*[1]=m:min">
-          <m:mo>min</m:mo>
-        </xsl:if>
-        <xsl:apply-templates select="*[2]" mode = "semantics"/>
-      </m:munder>
-      <xsl:if test="*[3]=m:condition">
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-      </m:mrow>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:xor[1]]" mode="xor">
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:apply-templates select="*[2]" mode = "semantics">
-    <xsl:with-param name="IN_PREC" select="$XOR_PREC"/>
-    <xsl:with-param name="PARAM" select="$PARAM"/>
-    <xsl:with-param name="PAREN" select="$PAREN"/>
-    <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-  </xsl:apply-templates>
-  <xsl:for-each select = "*[position()>2]">
-    <m:mo> <mchar name="xor"/> </m:mo>
-    <xsl:apply-templates select="." mode = "semantics">
-      <xsl:with-param name="IN_PREC" select="$XOR_PREC"/>
-      <xsl:with-param name="PAREN" select="$PAREN"/>
-      <xsl:with-param name="PAR_NO_IGNORE" select="$NO"/>
-    </xsl:apply-templates>
-  </xsl:for-each>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:not[1]]">
-  <m:mrow>
-    <m:mo>not</m:mo>
-    <xsl:apply-templates select = "*[2]" mode = "semantics">
-      <xsl:with-param name="IN_PREC" select="$FUNCTION_PREC"/>
-    </xsl:apply-templates>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:forall[1]]">
-  <m:mrow>
-    <m:mo>for all</m:mo>
-    <m:mfenced separators=",">
-      <xsl:for-each select = "m:bvar">
-        <xsl:apply-templates select = "." mode="semantics"/>
-      </xsl:for-each>
-    </m:mfenced>
-    <xsl:if test="m:condition">
-      <m:mo>:</m:mo>
-      <xsl:apply-templates select = "m:condition/*" mode = "semantics"/>
-      <m:mo>,</m:mo>
-    </xsl:if>
-    <xsl:apply-templates select = "*[position()>1 and not(self::m:bvar) and not(self::m:condition)]" mode = "semantics"/>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:exists[1]]">
-  <m:mrow>
-    <m:mo> <mchar name="Exists"/> </m:mo>
-    <m:mfenced separators=",">
-      <xsl:for-each select = "m:bvar">
-        <xsl:apply-templates select = "." mode="semantics"/>
-      </xsl:for-each>
-    </m:mfenced>
-    <xsl:if test="m:condition">
-      <m:mo>,</m:mo>
-      <xsl:apply-templates select = "m:condition/*" mode = "semantics"/>
-    </xsl:if>
-    <m:mo>:</m:mo>
-    <xsl:apply-templates select = "*[position()>1 and not(self::m:bvar) and not(self::m:condition)]" mode = "semantics"/>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:abs[1]]">
-  <xsl:if test="not(parent::m:apply[m:power[1]])">
-    <m:mfenced open="|" close="|" separators="">
-      <xsl:apply-templates select = "*[position()>1]" mode = "semantics"/>
-    </m:mfenced>
-  </xsl:if>
-  <xsl:if test="parent::m:apply[m:power[1]]">
-    <m:msup>
-      <m:mfenced open="|" close="|" separators="">
-        <xsl:apply-templates select = "*[position()>1]" mode = "semantics"/>
-      </m:mfenced>
-      <xsl:apply-templates select = "../*[3]" mode = "semantics"/>
-    </m:msup>
-  </xsl:if>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:conjugate[1]]">
-  <m:mover>
-    <m:mrow>
-      <xsl:apply-templates select = "*[position()>1]" mode = "semantics"/>
-    </m:mrow>
-    <m:mo> <mchar name="UnderBar"/> </m:mo>
-  </m:mover>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:arg[1] | m:real[1] | m:imaginary[1]]">
-  <m:mrow>
-    <xsl:choose>
-      <xsl:when test="m:arg">
-        <m:mo>arg</m:mo>
-      </xsl:when>
-      <xsl:when test="m:real">
-        <m:mo>Real</m:mo>
-      </xsl:when>
-      <xsl:when test="m:imaginary">
-        <m:mo>Imaginary</m:mo>
-      </xsl:when>
-    </xsl:choose>
-    <m:mfenced separators="">
-      <xsl:apply-templates select = "*[2]" mode = "semantics"/>
-    </m:mfenced>
-  </m:mrow>
-</xsl:template>
-
-
-<!-- RELATIONS -->
-
-<xsl:template match = "m:apply[m:neq | m:approx | m:tendsto | m:implies | m:in | m:notin | m:notsubset | m:notprsubset | m:subset | m:prsubset | m:eq | m:gt | m:lt | m:geq | m:leq | m:equivalent]">
-  <m:mrow>
-    <xsl:if test="*[1]=m:neq or *[1]=m:approx or *[1]=m:tendsto or *[1]=m:implies or *[1]=m:in or *[1]=m:notin or *[1]=m:notsubset or *[1]=m:notprsubset">
-      <xsl:apply-templates select = "*[2]" mode = "semantics"/>
-      <xsl:if test="*[1]=m:neq">
-        <m:mo> <mchar name="NotEqual"/> </m:mo>
-      </xsl:if>
-      <xsl:if test="*[1]=m:approx">
-        <m:mo> <mchar name="approxeq"/> </m:mo>
-      </xsl:if>
-      <xsl:if test="*[1]=m:tendsto">
-        <m:mo> <mchar name="RightArrow"/> </m:mo>
-      </xsl:if>
-      <xsl:if test="*[1]=m:implies">
-        <m:mo> <mchar name="DoubleRightArrow"/> </m:mo>
-      </xsl:if>
-      <xsl:if test="*[1]=m:in">
-        <m:mo> <mchar name="Element"/> </m:mo>
-      </xsl:if>
-      <xsl:if test="*[1]=m:notin">
-        <m:mo> <mchar name="NotElement"/> </m:mo>
-      </xsl:if>
-      <xsl:if test="*[1]=m:notsubset">
-        <m:mo> <mchar name="NotSubset"/> </m:mo>
-      </xsl:if>
-      <xsl:if test="*[1]=m:notprsubset">
-        <m:mo> <mchar name="NotSubsetEqual"/> </m:mo>
-      </xsl:if>
-      <xsl:apply-templates select = "*[3]" mode = "semantics"/>
-      <xsl:if test="*[1]=m:tendsto and m:tendsto[1][@type='below']">
-        <m:mo>-</m:mo>
-      </xsl:if>
-      <xsl:if test="*[1]=m:tendsto and m:tendsto[1][@type='above']">
-        <m:mo>+</m:mo>
-      </xsl:if>
-    </xsl:if>
-    <xsl:if test="*[1]=m:subset or *[1]=m:prsubset or *[1]=m:eq or *[1]=m:gt or *[1]=m:lt or *[1]=m:geq or *[1]=m:leq or *[1]=m:equivalent">
-      <xsl:apply-templates select = "*[2]" mode="semantics"/>
-      <xsl:for-each select = "*[position()>2]">
-        <xsl:if test="../*[self::m:subset][1]">
-          <m:mo>  <mchar name="SubsetEqual"/> </m:mo>
-        </xsl:if>
-        <xsl:if test="../*[self::m:prsubset][1]">
-          <m:mo> <mchar name="subset"/> </m:mo>
-        </xsl:if>
-        <xsl:if test="../*[self::m:eq][1]">
-          <m:mo>=</m:mo>
-        </xsl:if>
-        <xsl:if test="../*[self::m:gt][1]">
-          <m:mo>&gt;</m:mo>
-        </xsl:if>
-        <xsl:if test="../*[self::m:lt][1]">
-          <m:mo>&lt;</m:mo>
-        </xsl:if>
-        <xsl:if test="../*[self::m:geq][1]">
-          <m:mo> <mchar name="geq"/> </m:mo>
-        </xsl:if>
-        <xsl:if test="../*[self::m:leq][1]">
-          <m:mo> <mchar name="leq"/> </m:mo>
-        </xsl:if>
-        <xsl:if test="../*[self::m:equivalent][1]">
-          <m:mo> <mchar name="Congruent"/> </m:mo>
-        </xsl:if>
-        <xsl:apply-templates select = "." mode="semantics"/>
-      </xsl:for-each>
-    </xsl:if>
-  </m:mrow>
-</xsl:template>
-
-
-<!-- CALCULUS -->
-
-<xsl:template match = "m:apply[*[1][self::m:ln]]">
-  <m:mrow>
-    <xsl:choose>
-      <xsl:when test="parent::m:apply[m:power[1]]">
-        <m:msup>
-          <m:mo>ln</m:mo>
-          <xsl:apply-templates select = "../*[3]" mode = "semantics"/>
-        </m:msup>
-      </xsl:when>
-      <xsl:otherwise>
-        <m:mo>ln</m:mo>
-      </xsl:otherwise>
-    </xsl:choose>
-    <xsl:apply-templates select = "*[2]" mode = "semantics">
-      <xsl:with-param name="IN_PREC" select="$FUNCTION_PREC"/>
-    </xsl:apply-templates>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:log[1]]">
-  <m:mrow>
-    <xsl:choose>
-      <xsl:when test="parent::m:apply[m:power[1]]">
-        <xsl:if test="not(*[2]=m:logbase)">
-          <m:msup>
-            <m:mo>log</m:mo>
-            <xsl:apply-templates select = "../*[3]" mode = "semantics"/>
-          </m:msup>
-        </xsl:if>
-        <xsl:if test="*[2]=m:logbase">
-          <m:msubsup>
-            <m:mo>log</m:mo>
-            <xsl:apply-templates select = "../*[3]" mode = "semantics"/>
-            <xsl:apply-templates select = "m:logbase" mode = "semantics"/>
-          </m:msubsup>
-        </xsl:if>
-      </xsl:when>
-      <xsl:otherwise>
-        <xsl:if test="not(*[2]=m:logbase)">
-          <m:mo>log</m:mo>
-        </xsl:if>
-        <xsl:if test="*[2]=m:logbase">
-          <m:msub>
-            <m:mo>log</m:mo>
-            <xsl:apply-templates select = "m:logbase" mode = "semantics"/>
-          </m:msub>
-        </xsl:if>
-      </xsl:otherwise>
-    </xsl:choose>
-    <xsl:if test="*[2]=m:logbase">
-      <xsl:apply-templates select = "*[3]" mode = "semantics">
-        <xsl:with-param name="IN_PREC" select="$FUNCTION_PREC"/>
-      </xsl:apply-templates>
-    </xsl:if>
-    <xsl:if test="not(*[2]=m:logbase)">
-      <xsl:apply-templates select = "*[2]" mode = "semantics">
-        <xsl:with-param name="IN_PREC" select="$FUNCTION_PREC"/>
-      </xsl:apply-templates>
-    </xsl:if>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:diff[1]]">
-  <m:mrow>
-    <xsl:if test="*[2]=m:bvar and m:bvar[*[2]=m:degree]">
-      <m:mfrac>
-        <m:msup>
-          <m:mo>d</m:mo>
-          <xsl:apply-templates select = "m:bvar/m:degree" mode = "semantics"/>
-        </m:msup>
-        <m:mrow>
-          <m:mo>d</m:mo>
-          <m:msup>
-            <xsl:apply-templates select = "m:bvar/*[1]" mode = "semantics"/>
-            <xsl:apply-templates select = "m:bvar/m:degree" mode = "semantics"/>
-          </m:msup>
-        </m:mrow>
-      </m:mfrac>
-    </xsl:if>
-    <xsl:if test="*[2]=m:bvar and not(m:bvar[*[2]=m:degree])">
-      <m:mfrac>
-        <m:mo>d</m:mo>
-        <m:mrow>
-          <m:mo>d</m:mo>
-          <xsl:apply-templates select = "m:bvar/*[1]" mode = "semantics"/>
-        </m:mrow>
-      </m:mfrac>
-    </xsl:if>
-    <xsl:apply-templates select = "*[3]" mode = "semantics"/>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:partialdiff[1]]">
-  <m:mrow>
-    <xsl:for-each select = "m:bvar">
-      <xsl:if test="*[last()]=m:degree">
-        <m:mfrac>
-          <m:msup>
-             <m:mo>d</m:mo>
-             <xsl:apply-templates select = "m:degree" mode = "semantics"/>
-          </m:msup>
-          <m:mrow>
-            <m:mo>d</m:mo>
-            <m:msup>
-              <xsl:apply-templates select = "*[1]" mode = "semantics"/>
-              <xsl:apply-templates select = "m:degree" mode = "semantics"/>
-            </m:msup>
-          </m:mrow>
-        </m:mfrac>
-      </xsl:if>
-      <xsl:if test="not(*[last()]=m:degree)">
-        <m:mfrac>
-          <m:mo>d</m:mo>
-          <m:mrow>
-            <m:mo>d</m:mo>
-            <xsl:apply-templates select = "*[1]" mode = "semantics"/>
-          </m:mrow>
-        </m:mfrac>
-      </xsl:if>
-    </xsl:for-each>
-    <xsl:apply-templates select = "*[last()]" mode = "semantics"/>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:lowlimit | m:uplimit | m:bvar | m:degree | m:logbase">
-  <xsl:apply-templates mode = "semantics"/>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:divergence[1] | m:grad[1] | m:curl[1]]">
-  <m:mrow>
-    <xsl:if test="*[1]=m:divergence">
-      <m:mo>div</m:mo>
-    </xsl:if>
-    <xsl:if test="*[1]=m:grad">
-    <m:mo>grad</m:mo>
-    </xsl:if>
-    <xsl:if test="*[1]=m:curl">
-    <m:mo>curl</m:mo>
-    </xsl:if>
-    <xsl:choose>
-      <xsl:when test="*[2]=m:ci">
-        <xsl:apply-templates select = "*[2]" mode = "semantics"/>
-      </xsl:when>
-      <xsl:otherwise>
-        <m:mfenced separators="">
-          <xsl:apply-templates select = "*[2]" mode = "semantics"/>
-        </m:mfenced>
-      </xsl:otherwise>
-    </xsl:choose>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:laplacian[1]]">
-  <m:mrow>
-    <m:msup>
-      <m:mo> &#x0394; </m:mo>
-      <m:mn>2</m:mn>
-    </m:msup>
-    <xsl:apply-templates select = "*[2]" mode = "semantics"/>
-  </m:mrow>
-</xsl:template>
-
-
-<!-- SET THEORY -->
-
-<xsl:template match = "m:set | m:list">
-  <m:mfenced open="{{" close="}}" separators="">
-    <xsl:if test="*[1]=m:bvar and *[2]=m:condition">
-      <xsl:apply-templates select="m:bvar" mode = "semantics"/>
-      <m:mo>|</m:mo>
-      <xsl:apply-templates select="m:condition" mode = "semantics"/>
-    </xsl:if>
-    <xsl:if test="*[1]=m:condition and not(child::m:bvar)">
-      <m:mfenced open="" close="" separators=",">
-        <xsl:for-each select = "*[not(self::m:condition) and not(self::m:bvar)]">
-          <xsl:apply-templates select = "." mode="semantics"/>
-        </xsl:for-each>
-      </m:mfenced>
-      <m:mo>|</m:mo>
-      <xsl:apply-templates select="m:condition" mode = "semantics"/>
-    </xsl:if>
-    <xsl:if test="not(child::m:bvar) and not(child::m:condition)">
-      <m:mfenced open="" close="" separators=",">
-        <xsl:for-each select = "*">
-          <xsl:apply-templates select = "." mode="semantics"/>
-        </xsl:for-each>
-      </m:mfenced>
-    </xsl:if>
-  </m:mfenced>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:union[1]]">
-  <xsl:param name="IN_PREC" select="$NO_PREC"/>
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:choose>
-    <xsl:when test="$IN_PREC &gt; $UNION_PREC or $IN_PREC=$UNION_PREC and $PARAM=$PAR_SAME">
-      <m:mfenced separators="">
-        <xsl:apply-templates select="." mode="union">
-          <xsl:with-param name="PARAM" select="$PARAM"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:when test="$IN_PREC &gt; $NO_PREC and $IN_PREC &lt; $FUNCTION_PREC and not($SEM_SW=2)">
-      <xsl:apply-templates select="." mode="union">
-        <xsl:with-param name="PARAM" select="$PARAM"/>
-        <xsl:with-param name="PAREN" select="$PAREN"/>
-        <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-      </xsl:apply-templates>
-    </xsl:when>
-    <xsl:otherwise>
-      <m:mrow>
-        <xsl:apply-templates select="." mode="union">
-          <xsl:with-param name="PARAM" select="$PARAM"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mrow>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:union[1]]" mode="union">
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:apply-templates select = "*[2]" mode="semantics">
-    <xsl:with-param name="IN_PREC" select="$UNION_PREC"/>
-    <xsl:with-param name="PARAM" select="$PARAM"/>
-    <xsl:with-param name="PAREN" select="$PAREN"/>
-    <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-  </xsl:apply-templates>
-  <xsl:for-each select = "*[position()>2]">
-    <m:mo> <mchar name="Union"/> </m:mo>
-    <xsl:apply-templates select = "." mode="semantics">
-      <xsl:with-param name="IN_PREC" select="$UNION_PREC"/>
-      <xsl:with-param name="PAREN" select="$PAREN"/>
-      <xsl:with-param name="PAR_NO_IGNORE" select="$NO"/>
-    </xsl:apply-templates>
-  </xsl:for-each>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:intersect[1]]">
-  <xsl:param name="IN_PREC" select="$NO_PREC"/>
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:choose>
-    <xsl:when test="$IN_PREC &gt; $INTERSECT_PREC">
-      <m:mfenced separators="">
-        <xsl:apply-templates select="." mode="intersect">
-          <xsl:with-param name="PARAM" select="$PARAM"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:when test="$IN_PREC &gt; $NO_PREC and $IN_PREC &lt; $FUNCTION_PREC and not($SEM_SW=2)">
-      <xsl:apply-templates select="." mode="intersect">
-        <xsl:with-param name="PARAM" select="$PARAM"/>
-        <xsl:with-param name="PAREN" select="$PAREN"/>
-        <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-      </xsl:apply-templates>
-    </xsl:when>
-    <xsl:otherwise>
-      <m:mrow>
-        <xsl:apply-templates select="." mode="intersect">
-          <xsl:with-param name="PARAM" select="$PARAM"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mrow>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:intersect[1]]" mode="intersect">
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:apply-templates select = "*[2]" mode="semantics">
-    <xsl:with-param name="IN_PREC" select="$INTERSECT_PREC"/>
-    <xsl:with-param name="PARAM" select="$PARAM"/>
-    <xsl:with-param name="PAREN" select="$PAREN"/>
-    <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-  </xsl:apply-templates>
-  <xsl:for-each select = "*[position()>2]">
-    <m:mo> <mchar name="Intersection"/> </m:mo>
-    <xsl:apply-templates select = "." mode="semantics">
-      <xsl:with-param name="IN_PREC" select="$INTERSECT_PREC"/>
-      <xsl:with-param name="PAREN" select="$PAREN"/>
-      <xsl:with-param name="PAR_NO_IGNORE" select="$NO"/>
-    </xsl:apply-templates>
-  </xsl:for-each>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:setdiff[1]]">
-  <xsl:param name="IN_PREC" select="$NO_PREC"/>
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:choose>
-    <xsl:when test="$IN_PREC &gt; $SETDIFF_PREC or $IN_PREC=$SETDIFF_PREC and $PARAM=$PAR_SAME">
-      <m:mfenced separators="">
-        <xsl:apply-templates select="." mode="setdiff">
-          <xsl:with-param name="PARAM" select="$PARAM"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mfenced>
-    </xsl:when>
-    <xsl:when test="$IN_PREC &gt; $NO_PREC and $IN_PREC &lt; $FUNCTION_PREC and not($SEM_SW=2)">
-      <xsl:apply-templates select="." mode="setdiff">
-        <xsl:with-param name="PARAM" select="$PARAM"/>
-        <xsl:with-param name="PAREN" select="$PAREN"/>
-        <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-      </xsl:apply-templates>
-    </xsl:when>
-    <xsl:otherwise>
-      <m:mrow>
-        <xsl:apply-templates select="." mode="setdiff">
-          <xsl:with-param name="PARAM" select="$PARAM"/>
-          <xsl:with-param name="PAREN" select="$PAREN"/>
-          <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-        </xsl:apply-templates>
-      </m:mrow>
-    </xsl:otherwise>
-  </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:setdiff[1]]" mode="setdiff">
-  <xsl:param name="PARAM" select="$NO_PARAM"/>
-  <xsl:param name="PAREN" select="$PAR_NO"/>
-  <xsl:param name="PAR_NO_IGNORE" select="$YES"/>
-  <xsl:apply-templates select = "*[2]" mode = "semantics">
-    <xsl:with-param name="IN_PREC" select="$SETDIFF_PREC"/>
-    <xsl:with-param name="PARAM" select="$PARAM"/>
-    <xsl:with-param name="PAREN" select="$PAREN"/>
-    <xsl:with-param name="PAR_NO_IGNORE" select="$PAR_NO_IGNORE"/>
-  </xsl:apply-templates>
-  <m:mo>\</m:mo>
-  <xsl:apply-templates select = "*[3]" mode = "semantics">
-    <xsl:with-param name="IN_PREC" select="$SETDIFF_PREC"/>
-    <xsl:with-param name="PARAM" select="$PAR_SAME"/>
-    <xsl:with-param name="PAREN" select="$PAREN"/>
-    <xsl:with-param name="PAR_NO_IGNORE" select="$NO"/>
-  </xsl:apply-templates>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:card[1]]">
-  <m:mfenced open="|" close="|" separators=",">
-    <xsl:for-each select = "*[position()>1]">
-      <xsl:apply-templates select = "." mode="semantics"/>
-    </xsl:for-each>
-  </m:mfenced>
-</xsl:template>
-
-
-<!-- SEQUENCES AND SERIES -->
-
-<xsl:template match = "m:apply[m:sum[1] | m:product[1]]">
-  <m:mrow>
-    <xsl:choose>
-      <xsl:when test="*[2]=m:bvar and m:lowlimit and m:uplimit">
-        <m:munderover>
-          <xsl:if test="*[1]=m:sum">
-            <m:mo> <mchar name="Sum"/> </m:mo>
-          </xsl:if>
-          <xsl:if test="*[1]=m:product">
-            <m:mo> <mchar name="Product"/> </m:mo>
-          </xsl:if>
-          <m:mrow>
-            <xsl:apply-templates select = "*[2]" mode = "semantics"/>
-            <m:mo>=</m:mo>
-            <xsl:apply-templates select = "m:lowlimit" mode = "semantics"/>
-          </m:mrow>
-          <xsl:apply-templates select = "m:uplimit" mode = "semantics"/>
-        </m:munderover>
-        <xsl:apply-templates select = "*[5]" mode = "semantics"/>
-      </xsl:when>
-      <xsl:when test="*[2]=m:bvar and *[3]=m:condition">
-        <m:munder>
-          <xsl:if test="*[1]=m:sum">
-            <m:mo> <mchar name="Sum"/> </m:mo>
-          </xsl:if>
-          <xsl:if test="*[1]=m:product">
-            <m:mo> <mchar name="Product"/> </m:mo>
-          </xsl:if>
-          <xsl:apply-templates select = "*[3]" mode = "semantics"/>
-        </m:munder>
-        <xsl:apply-templates select = "*[4]" mode = "semantics"/>
-      </xsl:when>
-    </xsl:choose>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:limit[1]]">
-  <m:mrow>
-    <m:munder>
-      <m:mo>lim</m:mo>
-      <m:mrow>
-        <xsl:if test="*[2]=m:bvar and *[3]=m:lowlimit">
-            <xsl:apply-templates select = "*[2]" mode = "semantics"/>
-            <m:mo> <mchar name="RightArrow"/> </m:mo>
-            <xsl:apply-templates select = "*[3]" mode = "semantics"/>
-        </xsl:if>
-        <xsl:if test="*[2]=m:bvar and *[3]=m:condition">
-          <xsl:apply-templates select = "*[3]" mode = "semantics"/>
-        </xsl:if>
-      </m:mrow>
-    </m:munder>
-    <xsl:apply-templates select = "*[4]" mode = "semantics"/>
-  </m:mrow>
-</xsl:template>
-
-
-<!-- TRIGONOMETRY -->
-
-<xsl:template match = "m:apply[*[1][self::m:sin | self::m:cos | self::m:tan | self::m:sec | self::m:csc | self::m:cot | self::m:sinh | self::m:cosh | self::m:tanh | self::m:sech | self::m:csch | self::m:coth | self::m:arcsin | self::m:arccos | self::m:arctan]]">
-  <m:mrow>
-    <xsl:if test="not(parent::m:apply[m:power[1]])">
-      <xsl:apply-templates select = "*[1]" mode = "trigonometry"/>
-    </xsl:if>
-    <xsl:if test="parent::m:apply[m:power[1]]">
-      <m:msup>
-        <xsl:apply-templates select = "*[1]" mode = "trigonometry"/>
-        <xsl:apply-templates select = "../*[3]" mode = "semantics"/>
-      </m:msup>
-    </xsl:if>
-    <xsl:apply-templates select = "*[2]" mode = "semantics">
-      <xsl:with-param name="IN_PREC" select="$FUNCTION_PREC"/>
-      <xsl:with-param name="PAR_NO_IGNORE" select="$NO"/>
-    </xsl:apply-templates>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:*" mode = "trigonometry">
-    <xsl:choose>
-      <xsl:when test="self::m:sin">
-        <m:mo>sin</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:cos">
-        <m:mo>cos</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:tan">
-        <m:mo>tan</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:sec">
-        <m:mo>sec</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:csc">
-        <m:mo>csc</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:cot">
-        <m:mo>cot</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:sinh">
-        <m:mo>sinh</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:cosh">
-        <m:mo>cosh</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:tanh">
-        <m:mo>tanh</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:sech">
-        <m:mo>sech</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:csch">
-        <m:mo>csch</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:coth">
-        <m:mo>coth</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:arcsin">
-        <m:mo>arcsin</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:arccos">
-        <m:mo>arccos</m:mo>
-      </xsl:when>
-      <xsl:when test="self::m:arctan">
-        <m:mo>arctan</m:mo>
-      </xsl:when>
-    </xsl:choose>
-</xsl:template>
-
-
-<!-- STATISTICS -->
-
-<xsl:template match = "m:apply[m:mean[1]]">
-  <m:mfenced open="&lt;" close="&gt;" separators=",">
-    <xsl:for-each select = "*[position()>1]">
-      <xsl:apply-templates select = "." mode="semantics"/>
-    </xsl:for-each>
-  </m:mfenced>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:sdev[1]]">
-  <m:mrow>
-    <m:mo> &#x03c3; </m:mo>
-    <m:mfenced separators=",">
-      <xsl:for-each select = "*[position()>1]">
-        <xsl:apply-templates select = "." mode="semantics"/>
-      </xsl:for-each>
-    </m:mfenced>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:variance[1]]">
-  <m:mrow>
-    <m:mo> &#x03c3; </m:mo>
-    <m:msup>
-      <m:mfenced separators=",">
-        <xsl:for-each select = "*[position()>1]">
-          <xsl:apply-templates select = "." mode="semantics"/>
-        </xsl:for-each>
-      </m:mfenced>
-      <m:mn>2</m:mn>
-    </m:msup>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:median[1]]">
-  <m:mrow>
-    <m:mo>median</m:mo>
-    <m:mfenced separators=",">
-      <xsl:for-each select = "*[position()>1]">
-        <xsl:apply-templates select = "." mode="semantics"/>
-      </xsl:for-each>
-    </m:mfenced>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:mode[1]]">
-  <m:mrow>
-    <m:mo>mode</m:mo>
-    <m:mfenced separators=",">
-      <xsl:for-each select = "*[position()>1]">
-        <xsl:apply-templates select = "." mode="semantics"/>
-      </xsl:for-each>
-    </m:mfenced>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:moment[1]]">
-  <m:mfenced open="&lt;" close="&gt;" separators="">
-    <xsl:if test="*[2]=m:degree">
-      <m:msup>
-        <xsl:apply-templates select="*[3]" mode = "semantics"/>
-        <xsl:apply-templates select="*[2]" mode = "semantics"/>
-      </m:msup>
-    </xsl:if>
-    <xsl:if test="not(*[2]=m:degree)">
-      <xsl:for-each select = "*[position()>1]">
-        <xsl:apply-templates select = "." mode="semantics"/>
-      </xsl:for-each>
-    </xsl:if>
-  </m:mfenced>
-</xsl:template>
-
-
-<!-- LINEAR ALGEBRA -->
-
-<xsl:template match="m:vector">
-  <m:mfenced separators="">
-    <m:mtable>
-      <xsl:for-each select="*">
-        <m:mtd>
-          <xsl:apply-templates select="." mode = "semantics"/>
-        </m:mtd>
-      </xsl:for-each>
-    </m:mtable>
-  </m:mfenced>
-</xsl:template>
-
-<xsl:template match = "m:matrix">
-  <m:mfenced separators="">
-    <m:mtable>
-      <xsl:apply-templates mode = "semantics"/>
-    </m:mtable>
-  </m:mfenced>
-</xsl:template>
-
-<xsl:template match = "m:matrixrow">
-  <m:mtr>
-    <xsl:for-each select="*">
-      <m:mtd>
-        <xsl:apply-templates select="." mode = "semantics"/>
-      </m:mtd>
-    </xsl:for-each>
-  </m:mtr>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:determinant[1]]">
-  <m:mrow>
-    <m:mo>det</m:mo>
-    <xsl:apply-templates select = "*[2]" mode = "semantics"/>
-  </m:mrow>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:transpose[1]]">
-  <m:msup>
-    <xsl:apply-templates select = "*[2]" mode = "semantics"/>
-    <m:mo>T</m:mo>
-  </m:msup>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:selector[1]]">
-  <xsl:if test="*[2]=m:matrix and *[3]=m:cn">
-      <xsl:variable name="m" select = "*[3]"/>
-      <xsl:choose>
-        <xsl:when test="*[4]=m:cn">
-          <xsl:variable name="n" select = "*[4]"/>
-          <xsl:copy-of select = "m:matrix/*[position()=$m]/*[position()=$n]"/>
-        </xsl:when>
-        <xsl:otherwise>
-          <xsl:copy-of select = "m:matrix/*[position()=$m]"/>
-        </xsl:otherwise>
-      </xsl:choose>
-  </xsl:if>
-  <xsl:if test="(*[2]=m:vector or *[2]=m:list) and *[3]=m:cn">
-    <xsl:variable name="m" select = "*[3]"/>
-    <xsl:copy-of select = "*[2]/*[position()=$m]"/>
-  </xsl:if>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:vectorproduct[1] | m:scalarproduct[1] | m:outerproduct[1]]">
-  <m:mrow>
-    <xsl:apply-templates select="*[2]" mode = "semantics"/>
-    <xsl:choose>
-      <xsl:when test="m:vectorproduct[1]">
-        <m:mo> <mchar name="Cross"/> </m:mo>
-      </xsl:when>
-      <xsl:when test="m:scalarproduct[1] | m:outerproduct[1]">
-        <m:mo>.</m:mo>
-      </xsl:when>
-    </xsl:choose>
-    <xsl:apply-templates select="*[3]" mode = "semantics"/>
-  </m:mrow>
-</xsl:template>
-
-</xsl:stylesheet>
diff --git a/helm/style/style_prima_del_linguaggio_naturale/mmlextension.xsl b/helm/style/style_prima_del_linguaggio_naturale/mmlextension.xsl
deleted file mode 100644
index 39d2f5c47..000000000
--- a/helm/style/style_prima_del_linguaggio_naturale/mmlextension.xsl
+++ /dev/null
@@ -1,1128 +0,0 @@
-<?xml version="1.0"?>
-
-<!--***********************************************************************--> 
-<!-- Extension to the XSLT version 0.07 of MathML content to presentation: -->
-<!-- First draft: February 19 2000, Andrea Asperti, Irene Schena           -->
-<!-- Revised: March 3 2000, Irene Schena                                   -->
-<!-- Revised: March 15 2000, Claudio Sacerdoti Coen, Irene Schena          -->
-<!-- Revised: March 21 2000, Irene Schena                                  -->
-<!--***********************************************************************--> 
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML"
-                              xmlns:helm="http://www.cs.unibo.it/helm">
-
-<xsl:import href="mml2mmlv1_0.xsl"/>
-
-<!--***********************************************************************-->
-<!-- Parameter affecting line-breaking                                     -->
-<!--***********************************************************************-->
-
-<xsl:variable name="framewidth" select="30"/>
-
-<!--***********************************************************************-->
-<!-- Gli oggetti sono stampati come mtext all'interno di una marca toplevel-->
-<!-- math ma al di fuori di semantics. Ora vi sono tanti semantics quanti  -->
-<!-- sono i termini: la presentation per un termine e' generata come primo -->
-<!-- figlio di un semantics e l'originario content viene inserito nel      -->
-<!-- nel secondo figlio di semantics, annotation-xml                       -->
-<!--***********************************************************************-->
-
-<!--**********************-->
-<!--        OBJECTS       -->
-<!--**********************-->
-
-<xsl:template match="/">
- <xsl:processing-instruction name="cocoon-format">type="text/xhtml"</xsl:processing-instruction>
- <xsl:apply-templates select="*"/>
-</xsl:template>
-
-<!-- DEFINITION -->
-
-<xsl:template match="Definition">
-    <m:math>
-     <m:mtable align="baseline 1" equalrows="false" columnalign="left" helm:xref="{@helm:xref}">
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>DEFINITION <xsl:value-of select="@name"/>(<xsl:if test="string(./Params) != &quot;&quot;"><xsl:value-of select="Params"/></xsl:if>) OF TYPE</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-         <xsl:apply-templates select="type/*[1]"/>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>AS</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-         <xsl:apply-templates select="body/*[1]"/>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-     </m:mtable>
-    </m:math>
-</xsl:template>
-
-<!-- AXIOM -->
-
-<xsl:template match="Axiom">
-    <m:math>
-     <m:mtable align="baseline 1" equalrows="false" columnalign="left" helm:xref="{@helm:xref}">
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>AXIOM <xsl:value-of select="@name"/>(<xsl:if test="string(./Params) != &quot;&quot;"><xsl:value-of select="Params"/></xsl:if>) OF TYPE</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-         <xsl:apply-templates select="type/*[1]"/>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-     </m:mtable>
-    </m:math>
-</xsl:template>
-
-<!-- UNFINISHED PROOF -->
-
-<xsl:template match="CurrentProof">
-    <m:math>
-     <m:mtable align="baseline 1" equalrows="false" columnalign="left" helm:xref="{@helm:xref}">
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>UNFINISHED PROOF <xsl:value-of select="@name"/>(<xsl:if test="string(./Params) != &quot;&quot;"><xsl:value-of select="Params"/></xsl:if>)</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>THESIS:</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-         <xsl:apply-templates select="type/*[1]"/>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>CONJECTURES:</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <xsl:for-each select="Conjecture">
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-         <m:mtext><xsl:value-of select="./@no"/>:</m:mtext>
-         <xsl:apply-templates select="./*[1]"/>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      </xsl:for-each>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>CORRESPONDING PROOF:</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-         <xsl:apply-templates select="body/*[1]"/>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-     </m:mtable>
-    </m:math>
-</xsl:template>
-
-<!-- MUTUAL INDUCTIVE DEFINITION -->
-
-<xsl:template match="InductiveDefinition">
-    <m:math>
-     <m:mtable align="baseline 1" equalrows="false" columnalign="left" helm:xref="{@helm:xref}">
-     <xsl:for-each select="InductiveType">
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <xsl:choose>
-         <xsl:when test="position() = 1">
-          <xsl:choose>
-          <xsl:when test="string(./@inductive) = &quot;true&quot;">
-           <m:mtext>INDUCTIVE DEFINITION</m:mtext>
-          </xsl:when>
-          <xsl:otherwise>
-           <m:mtext>COINDUCTIVE DEFINITION</m:mtext>
-          </xsl:otherwise>
-          </xsl:choose>  
-         </xsl:when>
-         <xsl:otherwise>
-          <m:mtext>AND</m:mtext>
-         </xsl:otherwise>
-         </xsl:choose>
-         <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
-         <m:mtext><xsl:value-of select="./@name"/>(<xsl:if test="string(../Params) != &quot;&quot;"><xsl:value-of select="../Params"/></xsl:if>)</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow> 
-         <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-         <m:mtext>[</m:mtext>
-         <xsl:choose>
-         <xsl:when test="string(../Param) != &quot;&quot;">         
-          <m:mtable align="baseline 1" equalrows="false" columnalign="left">
-           <xsl:for-each select="../Param">
-            <m:mtr>
-             <m:mtd>
-              <m:mrow>   
-               <m:mi><xsl:value-of select="./@name"/></m:mi>
-               <m:mo>:</m:mo>
-               <xsl:apply-templates select="*"/>
-              </m:mrow>
-             </m:mtd>
-            </m:mtr>
-           </xsl:for-each>
-            <m:mtr>
-             <m:mtd>
-              <m:mrow>
-               <m:mtext>]</m:mtext>
-              </m:mrow>
-             </m:mtd>
-            </m:mtr>
-          </m:mtable>
-         </xsl:when>
-         <xsl:otherwise>
-          <m:mtext>]</m:mtext>
-         </xsl:otherwise>
-         </xsl:choose>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>OF ARITY</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-         <xsl:apply-templates select="./arity/*[1]"/>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>BUILT FROM</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <xsl:for-each select="./Constructor">
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <xsl:choose>
-         <xsl:when test="position() = 1">
-          <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
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-          <m:mtext>|</m:mtext>
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-         </xsl:choose>
-         <m:mtext><xsl:value-of select="./@name"/> OF</m:mtext>
-         <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
-         <xsl:apply-templates select="./*[1]"/>
-        </m:mrow>
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-  </xsl:otherwise>
- </xsl:choose>
-</xsl:template>
-
-
-<xsl:template match = "m:apply[m:and[1]|m:or[1]
-          |m:geq[1]|m:leq[1]|m:gt[1]|m:lt[1]
-          |m:in[1]|m:intesect[1]|m:union[1]|m:subset[1]
-          |m:prsubset|m:setdiff[1]]">
- <xsl:variable name="symbol">
-  <xsl:choose>
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-   </xsl:when>
-   <xsl:when test="m:or[1]">
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-   </xsl:when>
-   <xsl:when test="m:union[1]">
-    <xsl:value-of select="'Union'"/>
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-   <xsl:when test="m:setdiff[1]">
-    <xsl:value-of select="'Backslash'"/>
-   </xsl:when>
-  </xsl:choose>
- </xsl:variable>
- <xsl:variable name="charlength">
-  <xsl:apply-templates select="*[1]" mode="charcount"/>
- </xsl:variable>
- <xsl:choose>
-  <xsl:when test="$charlength >= $framewidth">
-   <m:mtable align="baseline 1" equalrows="false" columnalign="left">
-    <xsl:if test="@helm:xref">
-     <xsl:attribute name="helm:xref">
-      <xsl:value-of select="@helm:xref"/>
-     </xsl:attribute>
-    </xsl:if>    
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-     <m:mtd>
-      <m:mo stretchy="false">(</m:mo>
-      <xsl:apply-templates select="*[position()=2]"/>
-     </m:mtd>
-    </m:mtr>
-    <xsl:for-each select = "*[position()>2]">
-     <m:mtr>
-      <m:mtd>
-       <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-       <m:mo helm:xref="{*[1]/@helm:xref}"> 
-        <m:mchar name="{$symbol}"/>
-       </m:mo>
-       <xsl:apply-templates select="."/>
-      </m:mtd>
-     </m:mtr>
-    </xsl:for-each>
-    <m:mtr>
-     <m:mtd>
-      <m:mo stretchy="false">)</m:mo>
-     </m:mtd>
-    </m:mtr>
-   </m:mtable>
-  </xsl:when>
-  <xsl:otherwise>
-   <xsl:apply-imports/>
-  </xsl:otherwise>
- </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:set">
- <xsl:choose>
-  <xsl:when test="count(child::*) = 0">
-   <m:mo> 
-    <m:mchar name="EmptySet"/>
-   </m:mo>
-  </xsl:when>
-  <xsl:otherwise>
-   <xsl:variable name="charlength">
-    <xsl:apply-templates select="*[1]" mode="charcount"/>
-   </xsl:variable>
-   <xsl:choose>
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-          <xsl:apply-templates select="*[position()=1]"/>
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-          <m:mo stretchy="false">|</m:mo>
-          <xsl:apply-templates select="m:condition/*[1]"/>
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-          <xsl:if test="position() != last()">
-           <mo>,</mo>
-          </xsl:if>
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-           <xsl:apply-templates select="."/>
-           <xsl:if test="position() != last()">
-            <mo>,</mo>
-           </xsl:if>
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-        <m:mtr>
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-          <m:mo stretchy="false">}</m:mo>
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-    <xsl:otherwise>
-     <xsl:apply-imports/>
-    </xsl:otherwise>
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-
-<xsl:template match = "m:apply[m:card[1]]">
- <m:mo stretchy="false">|</m:mo>
-  <xsl:apply-templates select="*[2]"/>
- <m:mo stretchy="false">|</m:mo>
-</xsl:template>
-
-<!--**********************-->
-<!--       COUNTING       -->
-<!--**********************-->
-
-<xsl:template match="m:and|m:or|m:not|m:exists|m:eq|m:lt|m:leq|m:gt|m:geq
- |m:in|m:notin|m:intersect|m:union|m:subset|m:prsubset|m:card|m:setdiff" mode="charcount">
-<xsl:param name="incurrent_length" select="0"/> 
-    <xsl:choose>
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-      <xsl:apply-templates select="following-sibling::*[position()=1]" mode="charcount">
-       <xsl:with-param name="incurrent_length" select="$incurrent_length + string-length()"/>
-      </xsl:apply-templates>
-     </xsl:variable>
-     <xsl:choose>
-     <xsl:when test="string($siblength) = &quot;&quot;">
-      <xsl:value-of select="$incurrent_length + 3 + string-length()"/>
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-     <xsl:variable name="siblength"><xsl:apply-templates select="following-sibling::*[position()=1]" mode="charcount"><xsl:with-param name="incurrent_length" select="$incurrent_length + string-length()"/></xsl:apply-templates></xsl:variable>
-     <xsl:choose>
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-     <xsl:otherwise>
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-
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-   <xsl:value-of select="$incurrent_length"/>
-  </xsl:when>
-  <xsl:otherwise>
-    <xsl:variable name="childlength"><xsl:apply-templates select="*[position()=1]" mode="charcount"><xsl:with-param name="incurrent_length" select="$incurrent_length"/><xsl:with-param name="nosibling" select="0"/></xsl:apply-templates></xsl:variable>
-    <xsl:choose>
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-     <xsl:choose>
-     <xsl:when test="string($siblength) = &quot;&quot;">
-      <xsl:value-of select="number($childlength)"/>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:value-of select="number($siblength)"/>
-     </xsl:otherwise>
-     </xsl:choose>>
-    </xsl:when>
-    <xsl:otherwise>
-     <xsl:value-of select="number($childlength)"/>
-    </xsl:otherwise>
-    </xsl:choose>
-  </xsl:otherwise>
- </xsl:choose>
-</xsl:template>
-
-</xsl:stylesheet> 
-
diff --git a/helm/style/style_prima_del_linguaggio_naturale/mmlextension_andrea.xsl b/helm/style/style_prima_del_linguaggio_naturale/mmlextension_andrea.xsl
deleted file mode 100644
index e75affee9..000000000
--- a/helm/style/style_prima_del_linguaggio_naturale/mmlextension_andrea.xsl
+++ /dev/null
@@ -1,1052 +0,0 @@
-<?xml version="1.0"?>
-
-<!--***********************************************************************--> 
-<!-- Extension to the XSLT version 0.07 of MathML content to presentation: -->
-<!-- First draft: February 19 2000, Andrea Asperti, Irene Schena           -->
-<!-- Revised: March 3 2000, Irene Schena                                   -->
-<!-- Revised: March 15 2000, Claudio Sacerdoti Coen, Irene Schena          -->
-<!-- Revised: March 21 2000, Irene Schena                                  -->
-<!--***********************************************************************--> 
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML"
-                              xmlns:helm="http://www.cs.unibo.it/helm">
-
-<xsl:import href="mml2mmlv1_0.xsl"/>
-
-<!--***********************************************************************-->
-<!-- Parameter affecting line-breaking                                     -->
-<!--***********************************************************************-->
-
-<xsl:variable name="framewidth" select="15"/>
-
-<!--***********************************************************************-->
-<!-- Gli oggetti sono stampati come mtext all'interno di una marca toplevel-->
-<!-- math ma al di fuori di semantics. Ora vi sono tanti semantics quanti  -->
-<!-- sono i termini: la presentation per un termine e' generata come primo -->
-<!-- figlio di un semantics e l'originario content viene inserito nel      -->
-<!-- nel secondo figlio di semantics, annotation-xml                       -->
-<!--***********************************************************************-->
-
-<!--**********************-->
-<!--        OBJECTS       -->
-<!--**********************-->
-
-<xsl:template match="/">
- <xsl:processing-instruction name="cocoon-format">type="text/xhtml"</xsl:processing-instruction>
- <xsl:apply-templates select="*"/>
-</xsl:template>
-
-<!-- DEFINITION -->
-
-<xsl:template match="Definition">
-    <m:math>
-     <m:mtable align="baseline 1" equalrows="false" columnalign="left" helm:xref="{@helm:xref}">
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>DEFINITION <xsl:value-of select="@name"/>(<xsl:if test="string(./Params) != &quot;&quot;"><xsl:value-of select="Params"/></xsl:if>) OF TYPE</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-         <xsl:apply-templates select="type/*[1]"/>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>AS</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-         <xsl:apply-templates select="body/*[1]"/>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-     </m:mtable>
-    </m:math>
-</xsl:template>
-
-<!-- AXIOM -->
-
-<xsl:template match="Axiom">
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-     <m:mtable align="baseline 1" equalrows="false" columnalign="left" helm:xref="{@helm:xref}">
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>AXIOM <xsl:value-of select="@name"/>(<xsl:if test="string(./Params) != &quot;&quot;"><xsl:value-of select="Params"/></xsl:if>) OF TYPE</m:mtext>
-        </m:mrow>
-       </m:mtd>
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-       <m:mtd>
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-         <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-         <xsl:apply-templates select="type/*[1]"/>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-     </m:mtable>
-    </m:math>
-</xsl:template>
-
-<!-- UNFINISHED PROOF -->
-
-<xsl:template match="CurrentProof">
-    <m:math>
-     <m:mtable align="baseline 1" equalrows="false" columnalign="left" helm:xref="{@helm:xref}">
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>UNFINISHED PROOF <xsl:value-of select="@name"/>(<xsl:if test="string(./Params) != &quot;&quot;"><xsl:value-of select="Params"/></xsl:if>)</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>THESIS:</m:mtext>
-        </m:mrow>
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-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-         <xsl:apply-templates select="type/*[1]"/>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
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-         <m:mtext>CONJECTURES:</m:mtext>
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-      <xsl:for-each select="Conjecture">
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-         <m:mtext><xsl:value-of select="./@no"/>:</m:mtext>
-         <xsl:apply-templates select="./*[1]"/>
-        </m:mrow>
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-      </m:mtr>
-      </xsl:for-each>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>CORRESPONDING PROOF:</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
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-         <xsl:apply-templates select="body/*[1]"/>
-        </m:mrow>
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-      </m:mtr>
-     </m:mtable>
-    </m:math>
-</xsl:template>
-
-<!-- MUTUAL INDUCTIVE DEFINITION -->
-
-<xsl:template match="InductiveDefinition">
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-     <xsl:for-each select="InductiveType">
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-       <m:mtd>
-        <m:mrow>
-         <xsl:choose>
-         <xsl:when test="position() = 1">
-          <xsl:choose>
-          <xsl:when test="string(./@inductive) = &quot;true&quot;">
-           <m:mtext>INDUCTIVE DEFINITION</m:mtext>
-          </xsl:when>
-          <xsl:otherwise>
-           <m:mtext>COINDUCTIVE DEFINITION</m:mtext>
-          </xsl:otherwise>
-          </xsl:choose>  
-         </xsl:when>
-         <xsl:otherwise>
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-         </xsl:otherwise>
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-      <m:mtr>
-       <m:mtd>
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-         <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-         <m:mtext>[</m:mtext>
-         <xsl:choose>
-         <xsl:when test="string(../Param) != &quot;&quot;">         
-          <m:mtable align="baseline 1" equalrows="false" columnalign="left">
-           <xsl:for-each select="../Param">
-            <m:mtr>
-             <m:mtd>
-              <m:mrow>   
-               <m:mi><xsl:value-of select="./@name"/></m:mi>
-               <m:mo>:</m:mo>
-               <xsl:apply-templates select="*"/>
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-            </m:mtr>
-           </xsl:for-each>
-            <m:mtr>
-             <m:mtd>
-              <m:mrow>
-               <m:mtext>]</m:mtext>
-              </m:mrow>
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-          </m:mtable>
-         </xsl:when>
-         <xsl:otherwise>
-          <m:mtext>]</m:mtext>
-         </xsl:otherwise>
-         </xsl:choose>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>OF ARITY</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-         <xsl:apply-templates select="./arity/*[1]"/>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>BUILT FROM</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <xsl:for-each select="./Constructor">
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <xsl:choose>
-         <xsl:when test="position() = 1">
-          <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
-         </xsl:when>
-         <xsl:otherwise>
-          <m:mtext>|</m:mtext>
-          <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
-         </xsl:otherwise>
-         </xsl:choose>
-         <m:mtext><xsl:value-of select="./@name"/> OF</m:mtext>
-         <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
-         <xsl:apply-templates select="./*[1]"/>
-        </m:mrow>
-       </m:mtd>
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-      </xsl:for-each>
-     </xsl:for-each>
-     </m:mtable>
-    </m:math>
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-
-<!-- VARIABLE -->
-
-<xsl:template match="Variable">
-    <m:math>
-     <m:mtable align="baseline 1" equalrows="false" columnalign="left" helm:xref="{@helm:xref}">
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
-         <m:mtext>VARIABLE <xsl:value-of select="@name"/> OF TYPE</m:mtext>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-      <m:mtr>
-       <m:mtd>
-        <m:mrow>
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-         <xsl:apply-templates select="type/*[1]"/>
-        </m:mrow>
-       </m:mtd>
-      </m:mtr>
-     </m:mtable>
-    </m:math>
-</xsl:template>
-
-<!--**********************-->
-<!--        TERMS         -->
-<!--**********************-->
-
-<xsl:template match="m:bvar">
- <xsl:choose>
-  <xsl:when test="m:type">
-   <xsl:variable name="charlength">
-    <xsl:apply-templates select="m:ci" mode="charcount"/>
-   </xsl:variable>
-   <xsl:choose>
-    <xsl:when test="$charlength >= $framewidth">
-     <m:mtable align="baseline 1" equalrows="false" columnalign="left">
-      <m:mtr>
-       <m:mtd>
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-        <m:mo>:</m:mo>
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-      <m:mtr>
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-         <xsl:apply-templates select="m:type"/>
-       </m:mtd>
-      </m:mtr>
-     </m:mtable>
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-    <xsl:otherwise>
-     <xsl:apply-templates select="m:ci"/>
-     <m:mo>:</m:mo>
-     <xsl:apply-templates select="m:type"/>
-    </xsl:otherwise>
-   </xsl:choose>
-  </xsl:when>
-  <xsl:otherwise>
-   <xsl:apply-templates select="m:ci"/>
-  </xsl:otherwise>
- </xsl:choose>
-</xsl:template>
-
-
-<!-- CSYMBOL -->
-
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-      <xsl:when test="$name='cast'">
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diff --git a/helm/style/style_prima_del_linguaggio_naturale/mmlextension_irene.xsl b/helm/style/style_prima_del_linguaggio_naturale/mmlextension_irene.xsl
deleted file mode 100644
index dfe2e6aa3..000000000
--- a/helm/style/style_prima_del_linguaggio_naturale/mmlextension_irene.xsl
+++ /dev/null
@@ -1,868 +0,0 @@
-<?xml version="1.0"?>
-
-<!--***********************************************************************--> 
-<!-- Extension to the XSLT version 0.07 of MathML content to presentation: -->
-<!-- First draft: February 19 2000, Andrea Asperti, Irene Schena           -->
-<!-- Revised: March 3 2000, Irene Schena                                   -->
-<!-- Revised: March 15 2000, Claudio Sacerdoti Coen, Irene Schena          -->
-<!-- Revised: March 21 2000, Irene Schena                                  -->
-<!--***********************************************************************--> 
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML"
-                              xmlns:helm="http://www.cs.unibo.it/helm">
-
-<xsl:import href="mml2mmlv1_0.xsl"/>
-
-<!--***********************************************************************-->
-<!-- Parameter affecting line-breaking                                     -->
-<!--***********************************************************************-->
-
-<xsl:variable name="framewidth" select="30"/>
-
-<!--***********************************************************************-->
-<!-- Gli oggetti sono stampati come mtext all'interno di una marca toplevel-->
-<!-- math ma al di fuori di semantics. Ora vi sono tanti semantics quanti  -->
-<!-- sono i termini: la presentation per un termine e' generata come primo -->
-<!-- figlio di un semantics e l'originario content viene inserito nel      -->
-<!-- nel secondo figlio di semantics, annotation-xml                       -->
-<!--***********************************************************************-->
-
-<!--**********************-->
-<!--        OBJECTS       -->
-<!--**********************-->
-
-<!-- DEFINITION -->
-
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-
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-<!--**********************-->
-<!--        TERMS         -->
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-             <xsl:variable name="charlength"><xsl:apply-templates select="m:type" mode="charcount"><xsl:with-param name="nosibling" select="1"/></xsl:apply-templates></xsl:variable> 
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-                 <xsl:apply-templates select="m:type"/>
-                </xsl:if>
-               </m:mrow>
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-             </m:mtr> 
-             <xsl:if test="$charlength >= $framewidth">
-             <m:mtr>
-              <m:mtd>
-               <m:mrow>
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-               </m:mrow>
-              </m:mtd>
-             </m:mtr>
-             </xsl:if>
-             <m:mtr>
-              <m:mtd>
-               <m:mrow>
-                <m:mo>:=</m:mo>
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-               </m:mrow>
-              </m:mtd>
-             </m:mtr>
-            </xsl:for-each>
-            </m:mtable>
-           </m:mrow>
-          </m:mtd>
-         </m:mtr>
-         <m:mtr>
-          <m:mtd>
-           <m:mrow>
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-           </m:mrow>
-          </m:mtd>
-         </m:mtr>
-        </m:mtable>
-       </xsl:when>
-       <xsl:otherwise>
-        <m:mo>COFIX</m:mo>
-        <m:mi><xsl:value-of select="m:ci"/></m:mi>
-        <m:mo stretchy="false">{</m:mo>
-        <m:mtable align="baseline 1" equalrows="false" columnalign="left">  
-        <xsl:for-each select="m:bvar"> 
-         <m:mtr>
-          <m:mtd>
-           <m:mrow>
-            <m:mi><xsl:value-of select="m:ci"/></m:mi>
-            <m:mo>:</m:mo>
-            <xsl:apply-templates select="m:type"/>
-            <m:mo>:=</m:mo>
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-             <m:mo stretchy="false">}</m:mo>
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-        </m:mtable>
-       </xsl:otherwise>
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-      </xsl:when>
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-     </m:mrow>
-</xsl:template>
-
-<!-- LAMBDA -->
-
-<xsl:template match="m:lambda">
-    <xsl:variable name="charlength"><xsl:apply-templates select="*[position()=1]" mode="charcount"/></xsl:variable>
-    <m:mrow helm:xref="{@helm:xref}">
-     <xsl:choose>
-     <xsl:when test="$charlength >= $framewidth">
-      <xsl:variable name="charlength"><xsl:apply-templates select="m:bvar/m:type" mode="charcount"><xsl:with-param name="nosibling" select="1"/></xsl:apply-templates></xsl:variable>
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-         <m:mrow>
-          <m:mo color="Red">&#x03bb;</m:mo>
-<!--<xsl:text disable-output-escaping="yes">&amp;lambda;</xsl:text>-->
-          <xsl:apply-templates select="m:bvar/m:ci"/>
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-          <xsl:if test="$framewidth > $charlength">
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-         </m:mrow>
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-       </m:mtr>
-       </xsl:if>
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-      <m:mo>.</m:mo>
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-     </xsl:otherwise>
-     </xsl:choose>
-    </m:mrow>
-</xsl:template>
-
-<!--**********************-->
-<!--       COUNTING       -->
-<!--**********************-->
-
-<xsl:template match="m:ci|m:csymbol" mode="charcount">
-<xsl:param name="incurrent_length" select="0"/> 
-<xsl:param name="nosibling" select="0"/>
-    <xsl:choose>
-    <xsl:when test="$framewidth > ($incurrent_length + string-length()) and ($nosibling = 0)">
-     <xsl:variable name="siblength"><xsl:apply-templates select="following-sibling::*[position()=1]" mode="charcount"><xsl:with-param name="incurrent_length" select="$incurrent_length + string-length()"/></xsl:apply-templates></xsl:variable>
-     <xsl:choose>
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-      <xsl:value-of select="$incurrent_length + string-length()"/>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:value-of select="number($siblength)"/>
-     </xsl:otherwise>
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-     <xsl:value-of select="$incurrent_length + string-length()"/>
-    </xsl:otherwise>
-    </xsl:choose>
-</xsl:template> 
-
-<xsl:template match="*" mode="charcount">
-<xsl:param name="incurrent_length" select="0"/>
-<xsl:param name="nosibling" select="0"/>
-    <xsl:variable name="childlength"><xsl:apply-templates select="*[position()=1]" mode="charcount"><xsl:with-param name="incurrent_length" select="$incurrent_length"/><xsl:with-param name="nosibling" select="0"/></xsl:apply-templates></xsl:variable>
-    <xsl:choose>
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-     <xsl:choose>
-     <xsl:when test="string($siblength) = &quot;&quot;">
-      <xsl:value-of select="number($childlength)"/>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:value-of select="number($siblength)"/>
-     </xsl:otherwise>
-     </xsl:choose>>
-    </xsl:when>
-    <xsl:otherwise>
-     <xsl:value-of select="number($childlength)"/>
-    </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-</xsl:stylesheet> 
diff --git a/helm/style/style_prima_del_linguaggio_naturale/objcontent.xsl b/helm/style/style_prima_del_linguaggio_naturale/objcontent.xsl
deleted file mode 100644
index 6ad0a4922..000000000
--- a/helm/style/style_prima_del_linguaggio_naturale/objcontent.xsl
+++ /dev/null
@@ -1,232 +0,0 @@
-<?xml version="1.0"?>
-
-<!--******************************************************************--> 
-<!-- XSLT version 0.1 of CIC objects to objects and MathML content:   -->
-<!-- First draft: March 21 2000, Irene Schena                         -->
-<!--******************************************************************-->
-
-<!--******************************************************************-->
-<!-- MANCA: gestione annotation e linking                             -->
-<!--******************************************************************-->
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML"
-                              xmlns:helm="http://www.cs.unibo.it/helm">
-
-<xsl:import href="content.xsl"/>
-
-<!-- ROOT -->
-
-<xsl:template match="cicxml">
-    <xsl:variable name="url"><xsl:value-of select="@baseurl"/></xsl:variable>
-    <xsl:variable name="stylesheet"><xsl:value-of select="@stylesheet"/></xsl:variable>
-    <xsl:processing-instruction name="cocoon-format">type="text/xml"</xsl:processing-instruction>
-    <xsl:processing-instruction name="xml-stylesheet">href="<xsl:value-of select='concat($url,$stylesheet)'/>" type="text/xsl"</xsl:processing-instruction>
-    <xsl:processing-instruction name="cocoon-process">type="xslt"</xsl:processing-instruction>
-    <xsl:apply-templates select="*[1]"/>
-</xsl:template>
-
-<!-- CIC OBJECTS -->
-
-<xsl:template match="Definition" mode="noannot">
-    <Definition name="{@name}" helm:xref="{@id}">  
-     <xsl:if test="string(@params) != &quot;&quot;">
-      <Params>
-       <xsl:value-of select="@params"/>
-      </Params>
-     </xsl:if>
-<!--     <xsl:choose>
-      <xsl:when test="$showproof=0">
-       <body>
-        <m:mi>Here</m:mi>
-       </body>
-      </xsl:when>
-      <xsl:otherwise>
-       <body>
-        <xsl:apply-templates select="body"/>
-       </body>
-      </xsl:otherwise>
-     </xsl:choose> -->
-     <body>
-      <xsl:apply-templates select="body"/>
-     </body>
-     <type>
-       <xsl:apply-templates select="type"/>
-     </type>
-    </Definition> 
-</xsl:template>
-
-<xsl:template match="Axiom" mode="noannot"> 
-    <Axiom name="{@name}" helm:xref="{@id}">
-     <xsl:if test="string(@params) != &quot;&quot;">
-      <Params>
-       <xsl:value-of select="@params"/>
-      </Params>
-     </xsl:if>
-     <type>
-       <xsl:apply-templates select="type"/>
-     </type>
-    </Axiom> 
-</xsl:template>
-
-<xsl:template match="CurrentProof" mode="noannot">
-    <CurrentProof name="{@name}" helm:xref="{@id}">
-     <xsl:for-each select="Conjecture">
-      <Conjecture no="./{@no}">
-        <xsl:apply-templates select="."/>
-      </Conjecture>
-     </xsl:for-each>
-     <body>
-       <xsl:apply-templates select="body"/>
-     </body>
-     <type>
-       <xsl:apply-templates select="type"/>
-     </type>
-    </CurrentProof> 
-</xsl:template>
-
-<xsl:template match="InductiveDefinition" mode="noannot">
-    <InductiveDefinition helm:xref="{@id}">
-     <xsl:if test="string(@params) != &quot;&quot;">
-      <Params>
-       <xsl:value-of select="@params"/>
-      </Params>
-     </xsl:if> 
-     <xsl:if test="string(@noParams) != 0"> 
-      <xsl:apply-templates select="InductiveType/arity/*[1]" mode="abstparams">
-       <xsl:with-param name="noparams" select="@noParams"/>
-      </xsl:apply-templates>
-     </xsl:if>
-     <xsl:for-each select="InductiveType">
-      <InductiveType name="{./@name}" inductive="{./@inductive}">
-       <arity>
-         <xsl:apply-templates select="./arity/*[1]" mode="abstparams">
-          <xsl:with-param name="noparams" select="../@noParams"/>
-          <xsl:with-param name="target" select="1"/>
-         </xsl:apply-templates>
-       </arity>
-       <xsl:for-each select="./Constructor">
-        <Constructor name="{./@name}">
-          <xsl:apply-templates select="./*[1]" mode="abstparams">
-           <xsl:with-param name="noparams" select="../../@noParams"/>
-           <xsl:with-param name="target" select="1"/>
-          </xsl:apply-templates>
-        </Constructor>
-       </xsl:for-each>
-      </InductiveType>
-     </xsl:for-each> 
-    </InductiveDefinition>       
-</xsl:template>
-
-<xsl:template match="Variable" mode="noannot"> 
-    <Variable name="{@name}" helm:xref="{@id}">
-     <type>
-       <xsl:apply-templates select="type"/>
-     </type>
-    </Variable> 
-</xsl:template>
-
-<!--*******************************************-->
-<!--    ABSTRACTING PARAMETERS AND COUNTING    -->
-<!--*******************************************-->
-<!-- Si dimentica i CAST dei termini che astrae. Nel caso dell'astrazione -->
-<!-- dei lambda dei pattern del CASE, qualora i lambda non si trovino     -->
-<!-- nella forma weak-head, astrae solo i lambda che trova e restituisce  -->
-<!-- un corpo depurato da tutti i primi cast che precedono il termine     -->
-<!-- restituito.                                                          -->
-
-<xsl:template match="*" mode="abstparams">
-<xsl:param name="noparams" select="0"/>
-<xsl:param name="target" select="0"/>
-<xsl:param name="binder">PROD</xsl:param>
-    <xsl:choose>
-    <xsl:when test="($noparams != 0) and ((name(.)=string($binder)) or (name(.)=&quot;CAST&quot;))">
-     <xsl:choose>
-     <xsl:when test="name(.) = string($binder)">
-      <xsl:if test="$target = 0">
-       <xsl:choose>
-       <xsl:when test="string($binder) = &quot;LAMBDA&quot;">
-        <m:ci>
-         <xsl:value-of select="target/@binder"/>
-        </m:ci>
-       </xsl:when>
-       <xsl:otherwise> 
-        <Param name="{target/@binder}">
-         <xsl:apply-templates select="source" mode="noannot"/>
-        </Param>
-       </xsl:otherwise>
-       </xsl:choose>
-      </xsl:if>
-      <xsl:apply-templates select="target/*[1]" mode="abstparams">
-       <xsl:with-param name="noparams" select="$noparams - 1"/>
-       <xsl:with-param name="target" select="$target"/>
-       <xsl:with-param name="binder" select="$binder"/>
-      </xsl:apply-templates>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-templates select="term/*[1]" mode="abstparams">
-       <xsl:with-param name="noparams" select="$noparams"/>
-       <xsl:with-param name="target" select="$target"/>
-       <xsl:with-param name="binder" select="$binder"/>
-      </xsl:apply-templates>
-     </xsl:otherwise>
-     </xsl:choose>
-    </xsl:when>
-    <xsl:otherwise> 
-     <xsl:choose>
-     <xsl:when test="($target = 1) and ($noparams != 0)">
-      <m:apply>
-      <m:csymbol>app</m:csymbol>
-      <xsl:apply-templates select="." mode="noannot"/>
-      <xsl:call-template name="printparam"><xsl:with-param name="noleft" select="$noparams"/></xsl:call-template>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:choose>
-      <xsl:when test="$noparams != 0">
-      <xsl:call-template name="printparam"><xsl:with-param name="noleft" select="$noparams"/></xsl:call-template>
-      </xsl:when>
-      <xsl:otherwise>
-       <xsl:if test="$target = 1">
-        <xsl:apply-templates select="." mode="noannot"/>
-       </xsl:if>
-      </xsl:otherwise>
-      </xsl:choose>
-     </xsl:otherwise>
-     </xsl:choose>
-    </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<xsl:template name="printparam">
-<xsl:param name="noleft" select="0"/>
-<xsl:param name="number" select="1"/>
-    <xsl:if test="$noleft != 0">
-     <m:ci>$<xsl:value-of select="$number"/></m:ci>
-     <xsl:call-template name="printparam"><xsl:with-param name="noleft" select="$noleft - 1"/><xsl:with-param name="number" select="$number + 1"/></xsl:call-template>  
-    </xsl:if>
-</xsl:template>
-
-<xsl:template match="*" mode="counting">
-<xsl:param name="noparams" select="0"/>
-<xsl:param name="count" select="0"/>
- <xsl:choose>
- <xsl:when test="name(.) = &quot;PROD&quot;">
-  <xsl:apply-templates select="target/*[1]" mode="counting">
-   <xsl:with-param name="noparams" select="$noparams"/>
-   <xsl:with-param name="count" select="$count + 1"/>
-  </xsl:apply-templates>
- </xsl:when>
- <xsl:when test="name(.) = &quot;CAST&quot;">
-  <xsl:apply-templates select="term/*[1]" mode="counting">
-   <xsl:with-param name="noparams" select="$noparams"/>
-   <xsl:with-param name="count" select="$count"/> 
-  </xsl:apply-templates>
- </xsl:when>
- <xsl:otherwise>
-  <xsl:value-of select="$count - $noparams"/>
- </xsl:otherwise>
- </xsl:choose>
-</xsl:template>
-
-</xsl:stylesheet>
diff --git a/helm/style/style_prima_del_linguaggio_naturale/objcontent.xsl.csc b/helm/style/style_prima_del_linguaggio_naturale/objcontent.xsl.csc
deleted file mode 100644
index d2a846cba..000000000
--- a/helm/style/style_prima_del_linguaggio_naturale/objcontent.xsl.csc
+++ /dev/null
@@ -1,223 +0,0 @@
-<?xml version="1.0"?>
-
-<!--******************************************************************--> 
-<!-- XSLT version 0.1 of CIC objects to objects and MathML content:   -->
-<!-- First draft: March 21 2000, Irene Schena                         -->
-<!--******************************************************************-->
-
-<!--******************************************************************-->
-<!-- MANCA: gestione annotation e linking                             -->
-<!--******************************************************************-->
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML">
-
-<xsl:import href="content.xsl"/>
-
-<!-- ROOT -->
-
-<xsl:template match="cicxml">
-    <xsl:variable name="url"><xsl:value-of select="@baseurl"/></xsl:variable>
-    <xsl:variable name="stylesheet"><xsl:value-of select="@stylesheet"/></xsl:variable>
-    <xsl:processing-instruction name="cocoon-format">type="text/xml"</xsl:processing-instruction>
-    <xsl:processing-instruction name="xml-stylesheet">href="<xsl:value-of select='concat($url,$stylesheet)'/>" type="text/xsl"</xsl:processing-instruction>
-    <xsl:processing-instruction name="cocoon-process">type="xslt"</xsl:processing-instruction>
-    <xsl:apply-templates/>
-</xsl:template>
-
-<!-- CIC OBJECTS -->
-
-<xsl:template match="Definition" mode="noannot">
-    <Definition name="{@name}">  
-     <xsl:if test="string(@params) != &quot;&quot;">
-      <Params>
-       <xsl:value-of select="@params"/>
-      </Params>
-     </xsl:if>
-     <body>
-       <xsl:apply-templates select="body/*[1]">
-        <xsl:with-param name="backpointer" select="&quot;*[1]&quot;"/>
-       </xsl:apply-templates>
-     </body>
-     <type>
-       <xsl:apply-templates select="type/*[1]">
-        <xsl:with-param name="backpointer" select="&quot;*[2]&quot;"/>
-       </xsl:apply-templates>
-     </type>
-    </Definition> 
-</xsl:template>
-
-<xsl:template match="Axiom" mode="noannot"> 
-    <Axiom name="{@name}">
-     <xsl:if test="string(@params) != &quot;&quot;">
-      <Params>
-       <xsl:value-of select="@params"/>
-      </Params>
-     </xsl:if>
-     <type>
-       <xsl:apply-templates select="type"/>
-     </type>
-    </Axiom> 
-</xsl:template>
-
-<xsl:template match="CurrentProof" mode="noannot">
-    <CurrentProof name="{@name}">
-     <xsl:for-each select="Conjecture">
-      <Conjecture no="./{@no}">
-        <xsl:apply-templates select="."/>
-      </Conjecture>
-     </xsl:for-each>
-     <body>
-       <xsl:apply-templates select="body"/>
-     </body>
-     <type>
-       <xsl:apply-templates select="type"/>
-     </type>
-    </CurrentProof> 
-</xsl:template>
-
-<xsl:template match="InductiveDefinition" mode="noannot">
-    <InductiveDefinition>
-     <xsl:if test="string(@params) != &quot;&quot;">
-      <Params>
-       <xsl:value-of select="@params"/>
-      </Params>
-     </xsl:if> 
-     <xsl:if test="string(@noParams) != 0"> 
-      <xsl:apply-templates select="InductiveType/arity/*[1]" mode="abstparams">
-       <xsl:with-param name="noparams" select="@noParams"/>
-      </xsl:apply-templates>
-     </xsl:if>
-     <xsl:for-each select="InductiveType">
-      <InductiveType name="{./@name}" inductive="{./@inductive}">
-       <arity>
-         <xsl:apply-templates select="./arity/*[1]" mode="abstparams">
-          <xsl:with-param name="noparams" select="../@noParams"/>
-          <xsl:with-param name="target" select="1"/>
-         </xsl:apply-templates>
-       </arity>
-       <xsl:for-each select="./Constructor">
-        <Constructor name="{./@name}">
-          <xsl:apply-templates select="./*[1]" mode="abstparams">
-           <xsl:with-param name="noparams" select="../../@noParams"/>
-           <xsl:with-param name="target" select="1"/>
-          </xsl:apply-templates>
-        </Constructor>
-       </xsl:for-each>
-      </InductiveType>
-     </xsl:for-each> 
-    </InductiveDefinition>       
-</xsl:template>
-
-<xsl:template match="Variable" mode="noannot"> 
-    <Variable name="{@name}">
-     <type>
-       <xsl:apply-templates select="type"/>
-     </type>
-    </Variable> 
-</xsl:template>
-
-<!--*******************************************-->
-<!--    ABSTRACTING PARAMETERS AND COUNTING    -->
-<!--*******************************************-->
-<!-- Si dimentica i CAST dei termini che astrae. Nel caso dell'astrazione -->
-<!-- dei lambda dei pattern del CASE, qualora i lambda non si trovino     -->
-<!-- nella forma weak-head, astrae solo i lambda che trova e restituisce  -->
-<!-- un corpo depurato da tutti i primi cast che precedono il termine     -->
-<!-- restituito.                                                          -->
-
-<xsl:template match="*" mode="abstparams">
-<xsl:param name="noparams" select="0"/>
-<xsl:param name="target" select="0"/>
-<xsl:param name="binder">PROD</xsl:param>
-    <xsl:choose>
-    <xsl:when test="($noparams != 0) and ((name(.)=string($binder)) or (name(.)=&quot;CAST&quot;))">
-     <xsl:choose>
-     <xsl:when test="name(.) = string($binder)">
-      <xsl:if test="$target = 0">
-       <xsl:choose>
-       <xsl:when test="string($binder) = &quot;LAMBDA&quot;">
-        <m:ci>
-         <xsl:value-of select="target/@binder"/>
-        </m:ci>
-       </xsl:when>
-       <xsl:otherwise> 
-        <Param name="{target/@binder}">
-         <xsl:apply-templates select="source" mode="noannot"/>
-        </Param>
-       </xsl:otherwise>
-       </xsl:choose>
-      </xsl:if>
-      <xsl:apply-templates select="target/*[1]" mode="abstparams">
-       <xsl:with-param name="noparams" select="$noparams - 1"/>
-       <xsl:with-param name="target" select="$target"/>
-       <xsl:with-param name="binder" select="$binder"/>
-      </xsl:apply-templates>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-templates select="term/*[1]" mode="abstparams">
-       <xsl:with-param name="noparams" select="$noparams"/>
-       <xsl:with-param name="target" select="$target"/>
-       <xsl:with-param name="binder" select="$binder"/>
-      </xsl:apply-templates>
-     </xsl:otherwise>
-     </xsl:choose>
-    </xsl:when>
-    <xsl:otherwise> 
-     <xsl:choose>
-     <xsl:when test="($target = 1) and ($noparams != 0)">
-      <m:apply>
-      <m:csymbol>app</m:csymbol>
-      <xsl:apply-templates select="." mode="noannot"/>
-      <xsl:call-template name="printparam"><xsl:with-param name="noleft" select="$noparams"/></xsl:call-template>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:choose>
-      <xsl:when test="$noparams != 0">
-      <xsl:call-template name="printparam"><xsl:with-param name="noleft" select="$noparams"/></xsl:call-template>
-      </xsl:when>
-      <xsl:otherwise>
-       <xsl:if test="$target = 1">
-        <xsl:apply-templates select="." mode="noannot"/>
-       </xsl:if>
-      </xsl:otherwise>
-      </xsl:choose>
-     </xsl:otherwise>
-     </xsl:choose>
-    </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<xsl:template name="printparam">
-<xsl:param name="noleft" select="0"/>
-<xsl:param name="number" select="1"/>
-    <xsl:if test="$noleft != 0">
-     <m:ci>$<xsl:value-of select="$number"/></m:ci>
-     <xsl:call-template name="printparam"><xsl:with-param name="noleft" select="$noleft - 1"/><xsl:with-param name="number" select="$number + 1"/></xsl:call-template>  
-    </xsl:if>
-</xsl:template>
-
-<xsl:template match="*" mode="counting">
-<xsl:param name="noparams" select="0"/>
-<xsl:param name="count" select="0"/>
- <xsl:choose>
- <xsl:when test="name(.) = &quot;PROD&quot;">
-  <xsl:apply-templates select="target/*[1]" mode="counting">
-   <xsl:with-param name="noparams" select="$noparams"/>
-   <xsl:with-param name="count" select="$count + 1"/>
-  </xsl:apply-templates>
- </xsl:when>
- <xsl:when test="name(.) = &quot;CAST&quot;">
-  <xsl:apply-templates select="term/*[1]" mode="counting">
-   <xsl:with-param name="noparams" select="$noparams"/>
-   <xsl:with-param name="count" select="$count"/> 
-  </xsl:apply-templates>
- </xsl:when>
- <xsl:otherwise>
-  <xsl:value-of select="$count - $noparams"/>
- </xsl:otherwise>
- </xsl:choose>
-</xsl:template>
-
-</xsl:stylesheet>
diff --git a/helm/style/style_prima_del_linguaggio_naturale/objcontent_old.xsl b/helm/style/style_prima_del_linguaggio_naturale/objcontent_old.xsl
deleted file mode 100644
index d3514b499..000000000
--- a/helm/style/style_prima_del_linguaggio_naturale/objcontent_old.xsl
+++ /dev/null
@@ -1,220 +0,0 @@
-<?xml version="1.0"?>
-
-<!--******************************************************************--> 
-<!-- XSLT version 0.1 of CIC objects to objects and MathML content:   -->
-<!-- First draft: March 21 2000, Irene Schena                         -->
-<!--******************************************************************-->
-
-<!--******************************************************************-->
-<!-- MANCA: gestione annotation e linking                             -->
-<!--******************************************************************-->
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML"
-                              xmlns:helm="http://www.cs.unibo.it/helm">
-
-<xsl:import href="content.xsl"/>
-
-<!-- ROOT -->
-
-<xsl:template match="cicxml">
-    <xsl:variable name="url"><xsl:value-of select="@baseurl"/></xsl:variable>
-    <xsl:variable name="stylesheet"><xsl:value-of select="@stylesheet"/></xsl:variable>
-    <xsl:processing-instruction name="cocoon-format">type="text/xml"</xsl:processing-instruction>
-    <xsl:processing-instruction name="xml-stylesheet">href="<xsl:value-of select='concat($url,$stylesheet)'/>" type="text/xsl"</xsl:processing-instruction>
-    <xsl:processing-instruction name="cocoon-process">type="xslt"</xsl:processing-instruction>
-    <xsl:apply-templates select="*[1]"/>
-</xsl:template>
-
-<!-- CIC OBJECTS -->
-
-<xsl:template match="Definition" mode="noannot">
-    <Definition name="{@name}" helm:xref="{@id}">  
-     <xsl:if test="string(@params) != &quot;&quot;">
-      <Params>
-       <xsl:value-of select="@params"/>
-      </Params>
-     </xsl:if>
-     <body>
-      <xsl:apply-templates select="body"/>
-     </body>
-     <type>
-       <xsl:apply-templates select="type"/>
-     </type>
-    </Definition> 
-</xsl:template>
-
-<xsl:template match="Axiom" mode="noannot"> 
-    <Axiom name="{@name}" helm:xref="{@id}">
-     <xsl:if test="string(@params) != &quot;&quot;">
-      <Params>
-       <xsl:value-of select="@params"/>
-      </Params>
-     </xsl:if>
-     <type>
-       <xsl:apply-templates select="type"/>
-     </type>
-    </Axiom> 
-</xsl:template>
-
-<xsl:template match="CurrentProof" mode="noannot">
-    <CurrentProof name="{@name}" helm:xref="{@id}">
-     <xsl:for-each select="Conjecture">
-      <Conjecture no="./{@no}">
-        <xsl:apply-templates select="."/>
-      </Conjecture>
-     </xsl:for-each>
-     <body>
-       <xsl:apply-templates select="body"/>
-     </body>
-     <type>
-       <xsl:apply-templates select="type"/>
-     </type>
-    </CurrentProof> 
-</xsl:template>
-
-<xsl:template match="InductiveDefinition" mode="noannot">
-    <InductiveDefinition helm:xref="{@id}">
-     <xsl:if test="string(@params) != &quot;&quot;">
-      <Params>
-       <xsl:value-of select="@params"/>
-      </Params>
-     </xsl:if> 
-     <xsl:if test="string(@noParams) != 0"> 
-      <xsl:apply-templates select="InductiveType/arity/*[1]" mode="abstparams">
-       <xsl:with-param name="noparams" select="@noParams"/>
-      </xsl:apply-templates>
-     </xsl:if>
-     <xsl:for-each select="InductiveType">
-      <InductiveType name="{./@name}" inductive="{./@inductive}">
-       <arity>
-         <xsl:apply-templates select="./arity/*[1]" mode="abstparams">
-          <xsl:with-param name="noparams" select="../@noParams"/>
-          <xsl:with-param name="target" select="1"/>
-         </xsl:apply-templates>
-       </arity>
-       <xsl:for-each select="./Constructor">
-        <Constructor name="{./@name}">
-          <xsl:apply-templates select="./*[1]" mode="abstparams">
-           <xsl:with-param name="noparams" select="../../@noParams"/>
-           <xsl:with-param name="target" select="1"/>
-          </xsl:apply-templates>
-        </Constructor>
-       </xsl:for-each>
-      </InductiveType>
-     </xsl:for-each> 
-    </InductiveDefinition>       
-</xsl:template>
-
-<xsl:template match="Variable" mode="noannot"> 
-    <Variable name="{@name}" helm:xref="{@id}">
-     <type>
-       <xsl:apply-templates select="type"/>
-     </type>
-    </Variable> 
-</xsl:template>
-
-<!--*******************************************-->
-<!--    ABSTRACTING PARAMETERS AND COUNTING    -->
-<!--*******************************************-->
-<!-- Si dimentica i CAST dei termini che astrae. Nel caso dell'astrazione -->
-<!-- dei lambda dei pattern del CASE, qualora i lambda non si trovino     -->
-<!-- nella forma weak-head, astrae solo i lambda che trova e restituisce  -->
-<!-- un corpo depurato da tutti i primi cast che precedono il termine     -->
-<!-- restituito.                                                          -->
-
-<xsl:template match="*" mode="abstparams">
-<xsl:param name="noparams" select="0"/>
-<xsl:param name="target" select="0"/>
-<xsl:param name="binder">PROD</xsl:param>
-    <xsl:choose>
-    <xsl:when test="($noparams != 0) and ((name(.)=string($binder)) or (name(.)=&quot;CAST&quot;))">
-     <xsl:choose>
-     <xsl:when test="name(.) = string($binder)">
-      <xsl:if test="$target = 0">
-       <xsl:choose>
-       <xsl:when test="string($binder) = &quot;LAMBDA&quot;">
-        <m:ci>
-         <xsl:value-of select="target/@binder"/>
-        </m:ci>
-       </xsl:when>
-       <xsl:otherwise> 
-        <Param name="{target/@binder}">
-         <xsl:apply-templates select="source" mode="noannot"/>
-        </Param>
-       </xsl:otherwise>
-       </xsl:choose>
-      </xsl:if>
-      <xsl:apply-templates select="target/*[1]" mode="abstparams">
-       <xsl:with-param name="noparams" select="$noparams - 1"/>
-       <xsl:with-param name="target" select="$target"/>
-       <xsl:with-param name="binder" select="$binder"/>
-      </xsl:apply-templates>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-templates select="term/*[1]" mode="abstparams">
-       <xsl:with-param name="noparams" select="$noparams"/>
-       <xsl:with-param name="target" select="$target"/>
-       <xsl:with-param name="binder" select="$binder"/>
-      </xsl:apply-templates>
-     </xsl:otherwise>
-     </xsl:choose>
-    </xsl:when>
-    <xsl:otherwise> 
-     <xsl:choose>
-     <xsl:when test="($target = 1) and ($noparams != 0)">
-      <m:apply>
-      <m:csymbol>app</m:csymbol>
-      <xsl:apply-templates select="." mode="noannot"/>
-      <xsl:call-template name="printparam"><xsl:with-param name="noleft" select="$noparams"/></xsl:call-template>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:choose>
-      <xsl:when test="$noparams != 0">
-      <xsl:call-template name="printparam"><xsl:with-param name="noleft" select="$noparams"/></xsl:call-template>
-      </xsl:when>
-      <xsl:otherwise>
-       <xsl:if test="$target = 1">
-        <xsl:apply-templates select="." mode="noannot"/>
-       </xsl:if>
-      </xsl:otherwise>
-      </xsl:choose>
-     </xsl:otherwise>
-     </xsl:choose>
-    </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<xsl:template name="printparam">
-<xsl:param name="noleft" select="0"/>
-<xsl:param name="number" select="1"/>
-    <xsl:if test="$noleft != 0">
-     <m:ci>$<xsl:value-of select="$number"/></m:ci>
-     <xsl:call-template name="printparam"><xsl:with-param name="noleft" select="$noleft - 1"/><xsl:with-param name="number" select="$number + 1"/></xsl:call-template>  
-    </xsl:if>
-</xsl:template>
-
-<xsl:template match="*" mode="counting">
-<xsl:param name="noparams" select="0"/>
-<xsl:param name="count" select="0"/>
- <xsl:choose>
- <xsl:when test="name(.) = &quot;PROD&quot;">
-  <xsl:apply-templates select="target/*[1]" mode="counting">
-   <xsl:with-param name="noparams" select="$noparams"/>
-   <xsl:with-param name="count" select="$count + 1"/>
-  </xsl:apply-templates>
- </xsl:when>
- <xsl:when test="name(.) = &quot;CAST&quot;">
-  <xsl:apply-templates select="term/*[1]" mode="counting">
-   <xsl:with-param name="noparams" select="$noparams"/>
-   <xsl:with-param name="count" select="$count"/> 
-  </xsl:apply-templates>
- </xsl:when>
- <xsl:otherwise>
-  <xsl:value-of select="$count - $noparams"/>
- </xsl:otherwise>
- </xsl:choose>
-</xsl:template>
-
-</xsl:stylesheet>
diff --git a/helm/style/style_prima_del_linguaggio_naturale/params.xsl b/helm/style/style_prima_del_linguaggio_naturale/params.xsl
deleted file mode 100644
index 034eeba97..000000000
--- a/helm/style/style_prima_del_linguaggio_naturale/params.xsl
+++ /dev/null
@@ -1,191 +0,0 @@
-<?xml version="1.0"?>
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML">
-
-<!--***********************************************************************--> 
-<!-- auxiliary functions                                                   -->
-<!-- HELM Group: Asperti, Padovani, Sacerdoti, Schena                      -->
-<!--***********************************************************************--> 
-
-<!--***********************************************************************-->
-<!-- get the name from a URI                                               -->
-<!--***********************************************************************-->
-
-<!-- CSC: PROBLEMA: URI CHE NON CONTENGONO / ED INIZIANO CON cic: -->
-<xsl:template name="name_of_uri">
- <xsl:param name="uri" select="&quot;&quot;"/>
- <xsl:variable name="suffix" select="substring-after($uri, &quot;/&quot;)"/>
- <xsl:choose>
-  <xsl:when test="$suffix = &quot;&quot;">
-   <!-- CSC: PROBLEMA: .con PUO' APPARIRE ALL'INTERNO DELLE URI ===>
-     SCRIVERE UNA FUNZIONE RICORSIVA CHE RISOLVA -->
-   <xsl:value-of select="substring-before($uri,&quot;.con&quot;)"/>
-  </xsl:when>
-  <xsl:otherwise>
-   <xsl:call-template name="name_of_uri">
-    <xsl:with-param name="uri" select="$suffix"/>
-   </xsl:call-template>
-  </xsl:otherwise>
- </xsl:choose>
-</xsl:template>
-
-<!--***********************************************************************-->
-<!-- erase common prefix from two uris                                     -->
-<!--***********************************************************************-->
-
-<xsl:template name="common_prefix">
- <xsl:param name="first_uri" select="&quot;&quot;"/>
- <xsl:param name="second_uri" select="&quot;&quot;"/>
- <xsl:choose>
-  <xsl:when test="(substring-before($first_uri,&quot;/&quot;) = 
-                substring-before($second_uri,&quot;/&quot;) and 
-                substring-after($second_uri,&quot;/&quot;) != &quot;&quot;)">
-   <xsl:call-template name="common_prefix">
-    <xsl:with-param 
-        name="first_uri" select="substring-after($first_uri,&quot;/&quot;)"/>
-    <xsl:with-param 
-        name="second_uri" select="substring-after($second_uri,&quot;/&quot;)"/>    </xsl:call-template>
-  </xsl:when>
-  <xsl:otherwise>
-   <xsl:call-template name="slash_counting">
-    <xsl:with-param name="uri" select="$second_uri"/>
-    <xsl:with-param name="counter" select="0"/>
-   </xsl:call-template>
-  </xsl:otherwise>   
- </xsl:choose>
-</xsl:template>
-
-<xsl:template name="slash_counting">
- <xsl:param name="uri" select="&quot;&quot;"/>
- <xsl:param name="counter" select="0"/>
- <xsl:choose>
-  <xsl:when test="(substring-after($uri,&quot;/&quot;) != &quot;&quot;)">
-   <xsl:call-template name="slash_counting">
-    <xsl:with-param 
-        name="uri" select="substring-after($uri,&quot;/&quot;)"/>
-    <xsl:with-param
-        name="counter" select="$counter +1"/> 
-   </xsl:call-template>
-  </xsl:when>
-  <xsl:otherwise>
-   <xsl:value-of select="$counter"/>
-  </xsl:otherwise>
- </xsl:choose>   
-</xsl:template>
-
-<xsl:template name="blank_counting">
- <xsl:param name="string" select="&quot;&quot;"/>
- <xsl:param name="counter" select="0"/>
- <xsl:choose>
-  <xsl:when test="(substring-after($string,&quot; &quot;) != &quot;&quot;)">
-   <xsl:call-template name="blank_counting">
-    <xsl:with-param 
-        name="string" select="substring-after($string,&quot; &quot;)"/>
-    <xsl:with-param 
-        name="counter" select="$counter +1"/> 
-   </xsl:call-template>
-  </xsl:when>
-  <xsl:otherwise>
-   <xsl:value-of select="$counter + 1"/>
-  </xsl:otherwise> 
- </xsl:choose>  
-</xsl:template>
-
-<xsl:template name="double_point_counting">
- <xsl:param name="string" select="&quot;&quot;"/>
- <xsl:param name="counter" select="0"/>
- <xsl:choose>
-  <xsl:when test="(substring-after($string,&quot;:&quot;) != &quot;&quot;)">
-   <xsl:call-template name="double_point_counting">
-    <xsl:with-param 
-        name="string" select="substring-after($string,&quot;:&quot;)"/>
-    <xsl:with-param 
-        name="counter" select="$counter +1"/> 
-   </xsl:call-template>
-  </xsl:when>
-  <xsl:otherwise>
-   <xsl:value-of select="$counter"/>
-  </xsl:otherwise> 
- </xsl:choose>  
-</xsl:template>
-
-<xsl:template name="min">
- <xsl:param name="string" select="&quot;&quot;"/>
- <xsl:param name="counter" select="0"/>
- <xsl:choose>
-  <xsl:when test="contains($string,concat($counter,&quot;:&quot;))
-         or (0 > $counter)">
-  <xsl:value-of select="$counter"/>
-  </xsl:when>
-  <xsl:otherwise>
-   <xsl:call-template name="min">
-    <xsl:with-param 
-        name="string" select="$string"/>
-    <xsl:with-param 
-        name="counter" select="$counter -1"/> 
-   </xsl:call-template>
-  </xsl:otherwise>
- </xsl:choose>  
-</xsl:template>
-
-<xsl:template name="get_no_params">
-    <xsl:param name="first_uri" select="&quot;&quot;"/>
-    <xsl:param name="second_uri" select="&quot;&quot;"/>
-     <xsl:variable name="offset">
-      <xsl:call-template name="common_prefix">
-       <xsl:with-param name="first_uri" select="$first_uri"/>
-       <xsl:with-param name="second_uri" select="$second_uri"/>
-      </xsl:call-template>
-     </xsl:variable>
-     <xsl:choose>
-      <xsl:when test="$offset > 0">
-       <xsl:variable name="params"> 
-        <xsl:value-of 
-            select="document(concat(string($absPath),$second_uri))/*/@params"/>
-       </xsl:variable>
-       <xsl:variable name="minimum">
-        <xsl:call-template name="min">
-         <xsl:with-param name="string" select="$params"/>
-         <xsl:with-param name="counter" select="$offset - 1"/>
-        </xsl:call-template>
-       </xsl:variable>
-       <xsl:choose>
-        <xsl:when test="0 > $minimum">
-         0
-        </xsl:when>
-        <xsl:otherwise>
-         <xsl:variable name="relevant_params">
-          <!-- the blank after : in the next line is essential -->
-          <xsl:value-of 
-            select="substring-after($params,concat($minimum,&quot;: &quot;))"/>
-         </xsl:variable>
-         <xsl:variable name="tokens">
-          <xsl:call-template name="blank_counting">
-           <xsl:with-param name="string" select="$relevant_params"/>
-           <xsl:with-param name="counter" select="0"/>
-          </xsl:call-template>
-         </xsl:variable>
-         <xsl:variable name="separators">
-          <xsl:call-template name="double_point_counting">
-           <xsl:with-param name="string" select="$relevant_params"/>
-           <xsl:with-param name="counter" select="0"/>
-          </xsl:call-template>
-         </xsl:variable>
-         <xsl:value-of select="$tokens - $separators"/>
-        </xsl:otherwise>
-       </xsl:choose>
-      </xsl:when>
-      <xsl:otherwise>
-      0
-      </xsl:otherwise>
-     </xsl:choose>
-</xsl:template>
-
-</xsl:stylesheet> 
-
-
-
-
-
-
diff --git a/helm/style/style_prima_del_linguaggio_naturale/reals.xsl b/helm/style/style_prima_del_linguaggio_naturale/reals.xsl
deleted file mode 100644
index 0e4afef94..000000000
--- a/helm/style/style_prima_del_linguaggio_naturale/reals.xsl
+++ /dev/null
@@ -1,277 +0,0 @@
-<?xml version="1.0"?>
-
-<!--******************************************************************--> 
-<!-- Reals                                                            -->
-<!-- First draft: April 3 2000                                        -->
-<!-- HELM Group: Asperti, Padovani, Sacerdoti, Schena                 -->
-<!--******************************************************************-->
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML"
-                              xmlns:helm="http://www.cs.unibo.it/helm"
-                              xmlns:xlink="http://www.w3.org/1999/xlink">
-
-<!--******************************************************************-->
-<!-- Variable containing the absolute path of the CIC file            -->
-<!--******************************************************************-->
-
-<xsl:variable name="absPath">http://localhost:8081/get?url=</xsl:variable>
-
-<!-- ************************* LOGIC *********************************-->
-
-<!-- REALS -->
-
-<!--
-<xsl:template match="CONST[attribute::uri='cic:/coq/REALS/Raxioms/R.con']" mode="noannot">
- <m:reals/>
-</xsl:template>
--->
-
-<!-- 0 e 1 -->
-
-<xsl:template match="CONST[attribute::uri='cic:/coq/REALS/Raxioms/R0.con']" mode="noannot">
- <m:cn definitionURL="{@uri}" helm:xref="{@id}">0</m:cn>
-</xsl:template>
-
-<xsl:template match="CONST[attribute::uri='cic:/coq/REALS/Raxioms/R1.con']" mode="noannot">
- <m:cn definitionURL="{@uri}" helm:xref="{@id}">1</m:cn>
-</xsl:template>
-
-
-
-<!-- Unary Operations -->
-
-<xsl:template match="APPLY[CONST[
- attribute::uri='cic:/coq/REALS/Raxioms/Ropp.con' or
- attribute::uri='cic:/coq/REALS/Rbasic_fun/Rabsolu.con' or
- attribute::uri='cic:/coq/REALS/Rfunctions/fact.con' or
- attribute::uri='cic:/coq/REALS/Rbase/Rsqr.con']]" mode="noannot">
-    <xsl:choose>
-     <xsl:when test="count(child::*) = 2">
-      <xsl:variable name="elem">
-       <xsl:choose>
-        <xsl:when test="CONST/@uri='cic:/coq/REALS/Raxioms/Ropp.con'">
-         <xsl:value-of select="'minus'"/>
-        </xsl:when>
-        <xsl:when test="CONST/@uri='cic:/coq/REALS/Rbasic_fun/Rabsolu.con'">
-         <xsl:value-of select="'abs'"/>
-        </xsl:when>
-        <xsl:when test="CONST/@uri='cic:/coq/REALS/Rfunctions/fact.con'">
-         <xsl:value-of select="'factorial'"/>
-        </xsl:when>
-        <xsl:when test="CONST/@uri='cic:/coq/REALS/Rbase/Rsqr.con'">
-         <xsl:value-of select="'root'"/>
-        </xsl:when>
-       </xsl:choose>
-      </xsl:variable>
-      <m:apply helm:xref="{@id}">
-       <xsl:element name="{concat('m:',$elem)}">
-        <xsl:attribute name="definitionURL">
-         <xsl:value-of select="CONST/@uri"/> 
-        </xsl:attribute>
-        <xsl:attribute name="helm:xref">
-         <xsl:value-of select="CONST/@id"/>
-        </xsl:attribute>
-       </xsl:element>
-       <xsl:apply-templates select="*[2]" mode="noannot"/>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST[
- attribute::uri='cic:/coq/REALS/Raxioms/Rinv.con']]" mode="noannot">
-    <xsl:choose>
-     <xsl:when test="count(child::*) = 2">
-      <m:apply helm:xref="{@id}">
-       <m:power/>
-       <xsl:apply-templates select="*[2]" mode="noannot"/>
-       <m:apply>
-        <m:minus>
-         <xsl:attribute name="definitionURL">
-          <xsl:value-of select="CONST/@uri"/> 
-         </xsl:attribute>
-        </m:minus>
-        <xsl:attribute name="helm:xref">
-         <xsl:value-of select="CONST/@id"/>
-        </xsl:attribute>
-        <m:cn>1</m:cn>
-       </m:apply>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<!-- Binary Operations and Relations -->
-
-<xsl:template match="APPLY[CONST[
- attribute::uri='cic:/coq/REALS/Raxioms/Rplus.con' or
- attribute::uri='cic:/coq/REALS/Raxioms/Rminus.con' or
- attribute::uri='cic:/coq/REALS/Raxioms/Rmult.con' or
- attribute::uri='cic:/coq/REALS/Raxioms/Rle.con' or
- attribute::uri='cic:/coq/REALS/Raxioms/Rlt.con' or
- attribute::uri='cic:/coq/REALS/Raxioms/Rge.con' or
- attribute::uri='cic:/coq/REALS/Raxioms/Rgt.con' or
- attribute::uri='cic:/coq/REALS/Rbasic_fun/Rmin.con' or
- attribute::uri='cic:/coq/REALS/Rfunctions/pow.con']]" mode="noannot">
-    <xsl:choose>
-     <xsl:when test="count(child::*) = 3">
-      <xsl:variable name="elem">
-       <xsl:choose>
-        <xsl:when test="CONST/@uri='cic:/coq/REALS/Raxioms/Rplus.con'">
-         <xsl:value-of select="'plus'"/>
-        </xsl:when>
-        <xsl:when test="CONST/@uri='cic:/coq/REALS/Raxioms/Rminus.con'">
-         <xsl:value-of select="'minus'"/>
-        </xsl:when>
-        <xsl:when test="CONST/@uri='cic:/coq/REALS/Raxioms/Rmult.con'">
-         <xsl:value-of select="'times'"/>
-        </xsl:when>
-        <xsl:when test="CONST/@uri='cic:/coq/REALS/Raxioms/Rle.con'">
-         <xsl:value-of select="'leq'"/>
-        </xsl:when>
-        <xsl:when test="CONST/@uri='cic:/coq/REALS/Raxioms/Rlt.con'">
-         <xsl:value-of select="'lt'"/>
-        </xsl:when>
-        <xsl:when test="CONST/@uri='cic:/coq/REALS/Raxioms/Rge.con'">
-         <xsl:value-of select="'geq'"/>
-        </xsl:when>
-        <xsl:when test="CONST/@uri='cic:/coq/REALS/Raxioms/Rgt.con'">
-         <xsl:value-of select="'gt'"/>
-        </xsl:when>
-        <xsl:when test="CONST/@uri='cic:/coq/REALS/Rbasic_fun/Rmin.con'">
-         <xsl:value-of select="'min'"/>
-        </xsl:when>
-        <xsl:when test="CONST/@uri='cic:/coq/REALS/Rfunctions/pow.con'">
-         <xsl:value-of select="'power'"/>
-        </xsl:when>
-       </xsl:choose>
-      </xsl:variable>
-      <m:apply helm:xref="{@id}">
-       <xsl:element name="{concat('m:',$elem)}">
-        <xsl:attribute name="definitionURL">
-         <xsl:value-of select="CONST/@uri"/> 
-        </xsl:attribute>
-        <xsl:attribute name="helm:xref">
-         <xsl:value-of select="CONST/@id"/>
-        </xsl:attribute>
-       </xsl:element>
-       <xsl:apply-templates select="*[2]" mode="noannot"/>
-       <xsl:apply-templates select="*[3]" mode="noannot"/>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<!-- LIMIT -->
-
-<xsl:template match="APPLY[CONST[
- attribute::uri='cic:/coq/REALS/Rlimit/limit1_in.con']]" mode="noannot">
-    <xsl:choose>
-     <xsl:when test="count(child::*) = 5">
-      <m:apply>
-       <m:eq/>
-       <xsl:choose>
-        <xsl:when test="name(*[2]) = 'LAMBDA'">
-         <m:apply helm:xref="{@id}">
-          <m:limit>
-           <xsl:attribute name="definitionURL">
-            <xsl:value-of select="CONST/@uri"/> 
-           </xsl:attribute>
-           <xsl:attribute name="helm:xref">
-            <xsl:value-of select="CONST/@id"/>
-           </xsl:attribute>
-          </m:limit>
-          <m:bvar>
-           <m:ci><xsl:value-of select="LAMBDA/target/@binder"/></m:ci>
-          </m:bvar>
-          <m:lowlimit>
-           <xsl:apply-templates select="*[5]" mode="noannot"/>
-          </m:lowlimit>
-          <xsl:apply-templates select="*[2]/target" mode="noannot"/>
-         </m:apply>
-        </xsl:when>
-        <xsl:otherwise>
-         <m:apply helm:xref="{@id}">
-          <m:limit/>
-          <m:bvar>
-           <m:ci>$x</m:ci>
-          </m:bvar>
-          <m:lowlimit>
-           <xsl:apply-templates select="*[5]" mode="noannot"/>
-          </m:lowlimit>
-          <m:apply>
-           <m:csymbol>app</m:csymbol>
-           <xsl:apply-templates select="*[2]" mode="noannot"/>
-           <m:ci>$x</m:ci>
-          </m:apply>
-         </m:apply>
-        </xsl:otherwise>
-       </xsl:choose>
-       <xsl:apply-templates select="*[4]" mode="noannot"/>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<!-- DIFFERENTIATION -->
-
-<xsl:template match="APPLY[CONST[
- attribute::uri='cic:/coq/REALS/Rderiv/D_in.con']]" mode="noannot">
-    <xsl:choose>
-     <xsl:when test="count(child::*) = 4">
-      <m:apply>
-       <m:eq/>
-       <xsl:choose>
-        <xsl:when test="name(*[2]) = 'LAMBDA'">
-         <m:apply helm:xref="{@id}">
-          <m:diff >
-           <xsl:attribute name="definitionURL">
-            <xsl:value-of select="CONST/@uri"/> 
-           </xsl:attribute>
-           <xsl:attribute name="helm:xref">
-            <xsl:value-of select="CONST/@id"/>
-           </xsl:attribute>
-          </m:diff>
-          <m:bvar>
-           <m:ci><xsl:value-of select="LAMBDA[1]/target/@binder"/></m:ci>
-          </m:bvar>
-          <xsl:apply-templates select="*[2]/target" mode="noannot"/>
-         </m:apply>
-        </xsl:when>
-        <xsl:otherwise>
-         <m:apply helm:xref="{@id}">
-          <m:diff/>
-          <m:bvar>
-           <m:ci>$x</m:ci>
-          </m:bvar>
-          <m:apply>
-           <m:csymbol>app</m:csymbol>
-           <xsl:apply-templates select="*[2]" mode="noannot"/>
-           <m:ci>$x</m:ci>
-          </m:apply>
-         </m:apply>
-        </xsl:otherwise>
-       </xsl:choose>
-       <xsl:apply-templates select="*[4]" mode="noannot"/>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-</xsl:stylesheet>
diff --git a/helm/style/style_prima_del_linguaggio_naturale/ricerca.xsl b/helm/style/style_prima_del_linguaggio_naturale/ricerca.xsl
deleted file mode 100644
index e0fa13a93..000000000
--- a/helm/style/style_prima_del_linguaggio_naturale/ricerca.xsl
+++ /dev/null
@@ -1,91 +0,0 @@
-<?xml version="1.0"?>
-
-
-<xsl:stylesheet version="0.1" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
-
-<xsl:output method="html"/>
-
-
-<!--******************************************************************-->
-<!-- Variable containing the absolute path of the CIC file            -->
-<!--******************************************************************-->
-
-<xsl:variable name="absPath">http://localhost:8081/get?url=</xsl:variable>
-
-<xsl:template match="/">
-               <html> 
-                <head></head>
-                <body>
-                <xsl:apply-templates select="Theory"/>
-                </body>
-               </html>
-</xsl:template>
-
-
-<!-- CIC TERMS -->
-
-
-
-<xsl:template match="MUTIND[string(@uri)='cic:/coq/INIT/Logic/Equality/eq.ind']" mode="search" >
-<!-- <xsl:param name="current_uri" select=""/> -->
-<!-- <h1><xsl:value-of select="string(@uri)"/></h1> -->
-<!-- <xsl:if test="string(@uri)='cic:/coq/INIT/Logic/Equality/eq.ind'"> -->
-  <xsl:value-of select="$current_uri"/><BR/>
-<!-- </xsl:if> -->
-</xsl:template>
-
-<!-- AGGIUNGERE cic: alle uri nei file Theory -->
-
-<xsl:template match="Theory">
-<!-- <xsl:param name="current_uri" select=""/> -->
- <xsl:apply-templates>
-  <xsl:with-param name="current_uri" select="string(@uri)"/>
- </xsl:apply-templates>
-</xsl:template>
-
-<xsl:template match="VARIABLE">
-<!-- <xsl:param name="current_uri" select=""/> -->
-<xsl:variable name="found" 
-  select="boolean(document(concat(string($absPath),string($current_uri),&quot;/&quot;,string(@uri)))//MUTIND[string(@uri)='cic:/coq/INIT/Logic/Equality/eq.ind'])"/>
-<xsl:if test="$found">
-  <xsl:value-of select="concat(string($current_uri),&quot;/&quot;,string(@uri),&quot;.xml&quot;)"/><BR/>
-</xsl:if>
-
-<!--   <xsl:with-param name="current_uri" select="concat(string($absPath),string($current_uri),&quot;/&quot;,string(@uri))"/>
- </xsl:apply-templates> -->
-</xsl:template>
-
-<xsl:template match="DEFINITION">
-<!-- <xsl:param name="current_uri" select=""/> -->
-<!-- <xsl:apply-templates select="document(concat(string($absPath),string($current_uri),&quot;/&quot;,string(@uri)))" mode="search">
-  <xsl:with-param name="current_uri" select="concat(string($absPath),string($current_uri),&quot;/&quot;,string(@uri))"/>
- </xsl:apply-templates> -->
-<xsl:variable name="found" 
-  select="boolean(document(concat(string($absPath),string($current_uri),&quot;/&quot;,string(@uri)))//MUTIND[string(@uri)='cic:/coq/INIT/Logic/Equality/eq.ind'])"/>
-<xsl:if test="$found">
-  <xsl:value-of select="concat(string($current_uri),&quot;/&quot;,string(@uri),&quot;.xml&quot;)"/><BR/>
-</xsl:if>
-</xsl:template>
-
-<xsl:template match="THEOREM">
-<!-- <xsl:param name="current_uri" select=""/> -->
-<!-- <xsl:apply-templates select="document(concat(string($absPath),string($current_uri),&quot;/&quot;,string(@uri)))" mode="search">
-  <xsl:with-param name="current_uri" select="concat(string($absPath),string($current_uri),&quot;/&quot;,string(@uri))"/>
- </xsl:apply-templates> -->
-<xsl:variable name="found" 
-  select="boolean(document(concat(string($absPath),string($current_uri),&quot;/&quot;,string(@uri)))//MUTIND[string(@uri)='cic:/coq/INIT/Logic/Equality/eq.ind'])"/>
-<xsl:if test="$found">
-  <xsl:value-of select="concat(string($current_uri),&quot;/&quot;,string(@uri),&quot;.xml&quot;)"/><BR/>
-</xsl:if>
-</xsl:template>
-
-
-<xsl:template match="SECTION">
-<!-- <xsl:param name="current_uri" select=""/> -->
- <xsl:apply-templates>
-  <xsl:with-param name="current_uri" select="concat($current_uri,&quot;/&quot;,string(@uri))"/>
- </xsl:apply-templates>
-
-</xsl:template>
-
-</xsl:stylesheet>
diff --git a/helm/style/style_prima_del_linguaggio_naturale/rootcontent.xsl b/helm/style/style_prima_del_linguaggio_naturale/rootcontent.xsl
deleted file mode 100644
index ada8b5cdd..000000000
--- a/helm/style/style_prima_del_linguaggio_naturale/rootcontent.xsl
+++ /dev/null
@@ -1,29 +0,0 @@
-<?xml version="1.0"?>
-
-<!--***********************************************************************--> 
-<!-- XSLT version 0.1 of the stylesheet to accomplish the right inclusion  -->
-<!-- of the content stylesheets:                                           -->
-<!-- First draft: May 26 2000, Claudio Sacerdoti Coen, Irene Schena        -->
-<!--***********************************************************************-->
-
-<!-- Schema of stylesheet precedences (from highest to lowest):          -->
-<!-- set -> basic -> annotatedcont                                       -->
-<!-- because theory_content is imported and has lower precendence than   -->
-<!-- the templates of rootcontent (i.e. the templates of set and basic). -->
-<!-- annotatedcont -> objcontent -> content                              -->
-<!-- because theory_content generates an import precedence tree.         --> 
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
-
-
-<xsl:import href="annotatedcont.xsl"/>
-<xsl:key name="id" use="@id" match="LAMBDA|PROD|CAST|REL|SORT|APPLY|VAR|META|CONST|MUTIND|MUTCONSTRUCT|MUTCASE|FIX|COFIX|Definition|Axiom|CurrentProof|InductiveDefinition|Variable"/>
-<xsl:include href="basic.xsl"/>
-<xsl:include href="set.xsl"/>
-<xsl:include href="reals.xsl"/>
-
-<xsl:variable name="showproof" select="0"/>
-</xsl:stylesheet>
-
-
-
diff --git a/helm/style/style_prima_del_linguaggio_naturale/rootcontent_withproofs.xsl b/helm/style/style_prima_del_linguaggio_naturale/rootcontent_withproofs.xsl
deleted file mode 100644
index 11d668436..000000000
--- a/helm/style/style_prima_del_linguaggio_naturale/rootcontent_withproofs.xsl
+++ /dev/null
@@ -1,29 +0,0 @@
-<?xml version="1.0"?>
-
-<!--***********************************************************************--> 
-<!-- XSLT version 0.1 of the stylesheet to accomplish the right inclusion  -->
-<!-- of the content stylesheets:                                           -->
-<!-- First draft: May 26 2000, Claudio Sacerdoti Coen, Irene Schena        -->
-<!--***********************************************************************-->
-
-<!-- Schema of stylesheet precedences (from highest to lowest):          -->
-<!-- set -> basic -> annotatedcont                                       -->
-<!-- because theory_content is imported and has lower precendence than   -->
-<!-- the templates of rootcontent (i.e. the templates of set and basic). -->
-<!-- annotatedcont -> objcontent -> content                              -->
-<!-- because theory_content generates an import precedence tree.         --> 
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
-
-
-<xsl:import href="annotatedcont.xsl"/>
-<xsl:key name="id" use="@id" match="LAMBDA|PROD|CAST|REL|SORT|APPLY|VAR|META|CONST|MUTIND|MUTCONSTRUCT|MUTCASE|FIX|COFIX|Definition|Axiom|CurrentProof|InductiveDefinition|Variable"/>
-<xsl:include href="basic.xsl"/>
-<xsl:include href="set.xsl"/>
-<xsl:include href="reals.xsl"/>
-
-<xsl:variable name="showproof" select="1"/>
-</xsl:stylesheet>
-
-
-
diff --git a/helm/style/style_prima_del_linguaggio_naturale/roottheory.xsl b/helm/style/style_prima_del_linguaggio_naturale/roottheory.xsl
deleted file mode 100644
index d293ee6f2..000000000
--- a/helm/style/style_prima_del_linguaggio_naturale/roottheory.xsl
+++ /dev/null
@@ -1,22 +0,0 @@
-<?xml version="1.0"?>
-
-<!--***********************************************************************--> 
-<!-- XSLT version 0.1 of the stylesheet to accomplish the right inclusion  -->
-<!-- of the theory content stylesheets:                                    -->
-<!-- First draft: May 26 2000, Claudio Sacerdoti Coen, Irene Schena        -->
-<!--***********************************************************************-->
-
-<!-- Schema of stylesheet precedences (from highest to lowest):          -->
-<!-- set -> basic -> theory_content                                      -->
-<!-- because theory_content is imported and has lower precendence than   -->
-<!-- the templates of rootcontent (i.e. the templates of set and basic). -->
-<!-- theory_content -> annotatedcont -> objcontent -> content            -->
-<!-- because theory_content generates an import precedence tree.         --> 
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
-
-<xsl:import href="theory_content.xsl"/>
-<xsl:include href="basic.xsl"/>
-<xsl:include href="set.xsl"/>
-
-</xsl:stylesheet>
diff --git a/helm/style/style_prima_del_linguaggio_naturale/set.xsl b/helm/style/style_prima_del_linguaggio_naturale/set.xsl
deleted file mode 100644
index 303c872ef..000000000
--- a/helm/style/style_prima_del_linguaggio_naturale/set.xsl
+++ /dev/null
@@ -1,487 +0,0 @@
-<?xml version="1.0"?>
-
-<!--******************************************************************--> 
-<!-- Basic Set Theory                                                 -->
-<!-- First draft: April 3 2000                                        -->
-<!-- HELM Group: Asperti, Padovani, Sacerdoti, Schena                 -->
-<!--******************************************************************-->
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML"
-                              xmlns:helm="http://www.cs.unibo.it/helm">
-
-<!--******************************************************************-->
-<!-- Variable containing the absolute path of the CIC file            -->
-<!--******************************************************************-->
-
-<xsl:variable name="absPath">http://localhost:8081/get?url=</xsl:variable>
-
-<!-- ************************* LOGIC *********************************-->
-
-
-
-<xsl:template match="*" mode="set">
-    <xsl:choose>
-     <xsl:when test="name() = 'LAMBDA'">
-      <m:set>
-       <m:bvar>
-        <m:ci>
-         <xsl:value-of select="target/@binder"/>
-        </m:ci>
-        <m:type>
-         <xsl:apply-templates select="source" mode="noannot"/>
-        </m:type>
-       </m:bvar>
-       <m:condition>
-        <xsl:apply-templates select="target" mode="noannot"/>
-       </m:condition>
-      </m:set>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-templates select="." mode="noannot"/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-
-<!-- IN -->
-
-<xsl:template match="APPLY[CONST[attribute::uri='cic:/coq/SETS/Ensembles/Ensembles/In.con']]" mode="noannot">
-    <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="/cicxml/@uri"/>
-      <xsl:with-param name="second_uri" select="CONST/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($no_params)) = 3">
-      <m:apply helm:xref="{@id}">
-       <m:in definitionURL="{CONST/@uri}" helm:xref="{CONST/@id}"/>
-       <xsl:apply-templates select="*[3+$no_params]" mode="noannot"/>
-       <!-- <xsl:apply-templates select="*[2+$no_params]" mode="noannot"/> -->
-       <xsl:apply-templates select="*[2+$no_params]" mode="set" /> 
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-
-<!-- NOT-IN -->
-<!-- NOT ha no parameters -->
-<xsl:template match="APPLY[CONST[attribute::uri='cic:/coq/INIT/Logic/not.con']
-and (count(child::*) = 2) and APPLY[CONST[attribute::uri='cic:/coq/SETS/Ensembles/Ensembles/In.con']]]" mode="noannot">
-    <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="/cicxml/@uri"/>
-      <xsl:with-param name="second_uri" select="APPLY/CONST/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(APPLY/child::*) - number($no_params)) = 3">
-      <m:apply helm:xref="{@id}">
-       <m:notin/>
-       <xsl:apply-templates select="*[2]/*[3+$no_params]" mode="noannot"/>
-  <!-- <xsl:apply-templates select="*[2]/*[2+$no_params]" mode="noannot"/> -->
-       <xsl:apply-templates select="*[2]/*[2+$no_params]" mode="set"/>  
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<!-- EMPTY SET -->
-
-<xsl:template match="APPLY[MUTIND[attribute::uri='cic:/coq/SETS/Ensembles/Ensembles/Empty_set.ind']]" mode="noannot">
-    <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="/cicxml/@uri"/>
-      <xsl:with-param name="second_uri" select="MUTIND/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($no_params)) = 1">
-      <m:set definitionURL="{MUTIND/@uri}" helm:xref="{@id}">
-      </m:set>
-     </xsl:when>   
-     <xsl:when test="(count(child::*) - number($no_params)) = 2">
-      <m:apply helm:xref="{@id}">
-       <m:in definitionURL="cic:/coq/SETS/Ensembles/Ensembles/In.con"/>
-       <xsl:apply-templates select="*[2+$no_params]" mode="noannot"/>
-       <m:set definitionURL="{MUTIND/@uri}" helm:xref="{@id}">
-       </m:set>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<!-- SINGLETON -->
-
-<xsl:template match="APPLY[MUTIND[attribute::uri='cic:/coq/SETS/Ensembles/Ensembles/Singleton.ind']]" mode="noannot">
-    <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="/cicxml/@uri"/>
-      <xsl:with-param name="second_uri" select="MUTIND/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($no_params)) = 2">
-      <m:set definitionURL="{MUTIND/@uri}" helm:xref="{@id}">
-       <xsl:apply-templates select="*[2+$no_params]" mode="noannot"/>
-      </m:set>
-     </xsl:when>   
-     <xsl:when test="(count(child::*) - number($no_params)) = 3">
-      <m:apply helm:xref="{@id}">
-       <m:in definitionURL="cic:/coq/SETS/Ensembles/Ensembles/In.con"/>
-       <xsl:apply-templates select="*[3+$no_params]" mode="noannot"/>
-       <m:set definitionURL="{MUTIND/@uri}">
-        <xsl:apply-templates select="*[2+$no_params]" mode="noannot"/>
-       </m:set>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<!-- COUPLE -->
-
-<xsl:template match="APPLY[MUTIND[attribute::uri='cic:/coq/SETS/Ensembles/Ensembles/Couple.ind']]" mode="noannot">
-    <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="/cicxml/@uri"/>
-      <xsl:with-param name="second_uri" select="MUTIND/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($no_params)) = 3">
-      <m:set definitionURL="{MUTIND/@uri}" helm:xref="{@id}">
-       <xsl:apply-templates select="*[2+$no_params]" mode="noannot"/>
-       <xsl:apply-templates select="*[3+$no_params]" mode="noannot"/>
-      </m:set>
-     </xsl:when>   
-     <xsl:when test="(count(child::*) - number($no_params)) = 4">
-      <m:apply helm:xref="{@id}">
-       <m:in definitionURL="cic:/coq/SETS/Ensembles/Ensembles/In.con"/>
-       <xsl:apply-templates select="*[4+$no_params]" mode="noannot"/>
-       <m:set definitionURL="{MUTIND/@uri}">
-        <xsl:apply-templates select="*[2+$no_params]" mode="noannot"/>
-        <xsl:apply-templates select="*[3+$no_params]" mode="noannot"/>
-       </m:set>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<!-- TRIPLE -->
-
-<xsl:template match="APPLY[MUTIND[attribute::uri='cic:/coq/SETS/Ensembles/Ensembles/Triple.ind'] and (count(child::*) = 5)]" mode="noannot">
-    <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="/cicxml/@uri"/>
-      <xsl:with-param name="second_uri" select="MUTIND/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($no_params)) = 4">
-      <m:set definitionURL="{MUTIND/@uri}" helm:xref="{@id}">
-       <xsl:apply-templates select="*[2+$no_params]" mode="noannot"/>
-       <xsl:apply-templates select="*[3+$no_params]" mode="noannot"/>
-       <xsl:apply-templates select="*[4+$no_params]" mode="noannot"/>
-      </m:set>
-     </xsl:when>   
-     <xsl:when test="(count(child::*) - number($no_params)) = 5">
-      <m:apply helm:xref="{@id}">
-       <m:in definitionURL="cic:/coq/SETS/Ensembles/Ensembles/In.con"/>
-       <xsl:apply-templates select="*[5+$no_params]" mode="noannot"/>
-       <m:set definitionURL="{MUTIND/@uri}">
-        <xsl:apply-templates select="*[2+$no_params]" mode="noannot"/>
-        <xsl:apply-templates select="*[3+$no_params]" mode="noannot"/>
-        <xsl:apply-templates select="*[4+$no_params]" mode="noannot"/>
-       </m:set>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<!-- INTERSECTION -->
-
-<xsl:template match="APPLY[MUTIND[attribute::uri='cic:/coq/SETS/Ensembles/Ensembles/Intersection.ind']]" mode="noannot">
-    <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="/cicxml/@uri"/>
-      <xsl:with-param name="second_uri" select="MUTIND/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($no_params)) = 3">
-      <m:apply helm:xref="{@id}">
-       <m:intersect definitionURL="{MUTIND/@uri}" helm:xref="{MUTIND/@id}"/>
-       <xsl:apply-templates select="*[2+$no_params]" mode="set"/>
-       <xsl:apply-templates select="*[3+$no_params]" mode="set"/>
-      </m:apply>
-     </xsl:when>
-     <xsl:when test="(count(child::*) - number($no_params)) = 4">
-      <m:apply helm:xref="{@id}">
-       <m:in/>
-       <xsl:apply-templates select="*[4+$no_params]" mode="noannot"/>
-       <m:apply>
-        <m:intersect definitionURL="{MUTIND/@uri}" helm:xref="{MUTIND/@id}"/>
-        <xsl:apply-templates select="*[2+$no_params]" mode="set"/>
-        <xsl:apply-templates select="*[3+$no_params]" mode="set"/>
-       </m:apply>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-
-<!-- UNION -->
-
-<xsl:template match="APPLY[MUTIND[attribute::uri='cic:/coq/SETS/Ensembles/Ensembles/Union.ind']]" mode="noannot">
-    <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="/cicxml/@uri"/>
-      <xsl:with-param name="second_uri" select="MUTIND/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($no_params)) = 3">
-      <m:apply helm:xref="{@id}">
-       <m:union definitionURL="{MUTIND/@uri}" helm:xref="{MUTIND/@id}"/>
-       <xsl:apply-templates select="*[2+$no_params]" mode="set"/>
-       <xsl:apply-templates select="*[3+$no_params]" mode="set"/>
-      </m:apply>
-     </xsl:when>
-     <xsl:when test="(count(child::*) - number($no_params)) = 4">
-      <m:apply helm:xref="{@id}">
-       <m:in/>
-       <xsl:apply-templates select="*[4+$no_params]" mode="noannot"/>
-       <m:apply>
-        <m:union definitionURL="{MUTIND/@uri}" helm:xref="{MUTIND/@id}"/>
-        <xsl:apply-templates select="*[2+$no_params]" mode="set"/>
-        <xsl:apply-templates select="*[3+$no_params]" mode="set"/>
-       </m:apply>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<!-- INCLUDED -->
-
-<xsl:template match="APPLY[CONST[attribute::uri='cic:/coq/SETS/Ensembles/Ensembles/Included.con']]" mode="noannot">
-    <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="/cicxml/@uri"/>
-      <xsl:with-param name="second_uri" select="CONST/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($no_params)) = 3">
-      <m:apply helm:xref="{@id}">
-       <m:subset definitionURL="{CONST/@uri}" helm:xref="{CONST/@id}"/>
-       <xsl:apply-templates select="*[2+$no_params]" mode="set"/>
-       <xsl:apply-templates select="*[3+$no_params]" mode="set"/>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<!-- STRICTLY INCLUDED -->
-
-<xsl:template match="APPLY[CONST[attribute::uri='cic:/coq/SETS/Ensembles/Ensembles/Strict_Included.con']]" mode="noannot">
-    <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="/cicxml/@uri"/>
-      <xsl:with-param name="second_uri" select="CONST/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($no_params)) = 3">
-      <m:apply helm:xref="{@id}">
-       <m:prsubset definitionURL="{CONST/@uri}" helm:xref="{CONST/@id}"/>
-       <xsl:apply-templates select="*[2+$no_params]" mode="set"/>
-       <xsl:apply-templates select="*[3+$no_params]" mode="set"/>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<!-- SET-DIFF -->
-
-<xsl:template match="APPLY[CONST[attribute::uri='cic:/coq/SETS/Ensembles/Ensembles/Setminus.con']]" mode="noannot">
-    <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="/cicxml/@uri"/>
-      <xsl:with-param name="second_uri" select="CONST/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($no_params)) = 3">
-      <m:apply helm:xref="{@id}">
-       <m:setdiff definitionURL="{CONST/@uri}" helm:xref="{CONST/@id}"/>
-       <xsl:apply-templates select="*[2+$no_params]" mode="set"/>
-       <xsl:apply-templates select="*[3+$no_params]" mode="set"/>
-      </m:apply>
-     </xsl:when>
-     <xsl:when test="(count(child::*) - number($no_params)) = 4">
-      <m:apply helm:xref="{@id}">
-       <m:in/>
-       <xsl:apply-templates select="*[4+$no_params]" mode="noannot"/>
-       <m:apply>
-        <m:setdiff definitionURL="{CONST/@uri}" helm:xref="{CONST/@id}"/>
-        <xsl:apply-templates select="*[2+$no_params]" mode="set"/>
-        <xsl:apply-templates select="*[3+$no_params]" mode="set"/>
-       </m:apply>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<!-- ADD-ELEM -->
-
-<xsl:template match="APPLY[CONST[attribute::uri='cic:/coq/SETS/Ensembles/Ensembles/Add.con']]" mode="noannot">
-    <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="/cicxml/@uri"/>
-      <xsl:with-param name="second_uri" select="CONST/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($no_params)) = 3">
-      <m:apply helm:xref="{@id}">
-       <m:union definitionURL="{CONST/@uri}" helm:xref="{CONST/@id}"/>
-       <xsl:apply-templates select="*[2+$no_params]" mode="set"/>
-       <m:set>
-        <xsl:apply-templates select="*[3+$no_params]" mode="noannot"/>
-       </m:set>
-      </m:apply>
-     </xsl:when>
-     <xsl:when test="(count(child::*) - number($no_params)) = 4">
-      <m:apply helm:xref="{@id}">
-       <m:in/>
-       <xsl:apply-templates select="*[4+$no_params]" mode="noannot"/>
-       <m:apply>
-        <m:union definitionURL="{CONST/@uri}" helm:xref="{CONST/@id}"/>
-        <xsl:apply-templates select="*[2+$no_params]" mode="set"/>
-        <m:set>
-         <xsl:apply-templates select="*[3+$no_params]" mode="noannot"/>
-        </m:set>
-       </m:apply>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<!-- SUBTRACT-ELEM -->
-
-<xsl:template match="APPLY[CONST[attribute::uri='cic:/coq/SETS/Ensembles/Ensembles/Subtract.con']]" mode="noannot">
-    <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="/cicxml/@uri"/>
-      <xsl:with-param name="second_uri" select="CONST/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($no_params)) = 3">
-      <m:apply helm:xref="{@id}">
-       <m:setdiff definitionURL="{CONST/@uri}" helm:xref="{CONST/@id}"/>
-       <xsl:apply-templates select="*[2+$no_params]" mode="set"/>
-       <m:set>
-        <xsl:apply-templates select="*[3+$no_params]" mode="noannot"/>
-       </m:set>
-      </m:apply>
-     </xsl:when>
-     <xsl:when test="(count(child::*) - number($no_params)) = 4">
-      <m:apply helm:xref="{@id}">
-       <m:in/>
-       <xsl:apply-templates select="*[4+$no_params]" mode="noannot"/>
-       <m:apply>
-        <m:setdiff definitionURL="{CONST/@uri}" helm:xref="{CONST/@id}"/>
-        <xsl:apply-templates select="*[2+$no_params]" mode="set"/>
-        <m:set>
-         <xsl:apply-templates select="*[3+$no_params]" mode="noannot"/>
-        </m:set>
-       </m:apply>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<!-- CARD -->
-
-<xsl:template match="APPLY[MUTIND[attribute::uri='cic:/coq/SETS/Finite_sets/Ensembles_finis/cardinal.ind']]" mode="noannot">
-    <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="/cicxml/@uri"/>
-      <xsl:with-param name="second_uri" select="MUTIND/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($no_params)) = 3">
-      <m:apply helm:xref="{@id}">
-       <m:eq/>
-       <m:apply>
-        <m:card definitionURL="{MUTIND/@uri}" helm:xref="{MUTIND/@id}"/>
-        <xsl:apply-templates select="*[2+$no_params]" mode="set"/>
-       </m:apply>
-       <xsl:apply-templates select="*[3+$no_params]" mode="noannot"/>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-</xsl:stylesheet>
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
diff --git a/helm/style/style_prima_del_linguaggio_naturale/theory_content.xsl b/helm/style/style_prima_del_linguaggio_naturale/theory_content.xsl
deleted file mode 100644
index 9b65cc5b2..000000000
--- a/helm/style/style_prima_del_linguaggio_naturale/theory_content.xsl
+++ /dev/null
@@ -1,57 +0,0 @@
-<?xml version="1.0"?>
-
-<!--***********************************************************************--> 
-<!-- XSLT version 0.1 of theory objects to theory sections:                -->
-<!-- First draft: May 08 2000, Claudio Sacerdoti Coen, Irene Schena        -->
-<!--***********************************************************************--> 
-
-<xsl:stylesheet version="0.1" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
-
-<xsl:import href="rootcontent.xsl"/>
-
-<!--******************************************************************-->
-<!-- Variable containing the absolute path of the CIC file            -->
-<!--******************************************************************-->
-
-<xsl:variable name="absPath">http://localhost:8081/get?url=</xsl:variable>
-
-<!-- THEORY -->
-
-<xsl:template match="Theory">
-    <SECTION>
-     <xsl:apply-templates><xsl:with-param name="current_uri" select="string(@uri)"/></xsl:apply-templates>
-    </SECTION>
-</xsl:template>
-
-<!-- SUBTHEORY -->
-
-<xsl:template match="SECTION">
-<xsl:param name="current_uri"/>
-    <SECTION>
-     <xsl:apply-templates><xsl:with-param name="current_uri" select="concat($current_uri,&quot;/&quot;,string(@uri))"/></xsl:apply-templates>
-    </SECTION>
-</xsl:template>
-
-<!-- THEORY ELEMENTS -->
-
-<xsl:template match="DEFINITION">
-<xsl:param name="current_uri"/>
-    <xsl:apply-templates select="document(concat(string($absPath),string($current_uri),&quot;/&quot;,string(@uri)))"/>
-</xsl:template>
-
-<xsl:template match="AXIOM">
-<xsl:param name="current_uri"/>
-    <xsl:apply-templates select="document(concat(string($absPath),string($current_uri),&quot;/&quot;,string(@uri)))"/>
-</xsl:template>
-
-<xsl:template match="THEOREM">
-<xsl:param name="current_uri"/>
-    <xsl:apply-templates select="document(concat(string($absPath),string($current_uri),&quot;/&quot;,string(@uri)))"/>
-</xsl:template>
-
-<xsl:template match="VARIABLE">
-<xsl:param name="current_uri"/>
-    <xsl:apply-templates select="document(concat(string($absPath),string($current_uri),&quot;/&quot;,string(@uri)))"/>
-</xsl:template>
-
-</xsl:stylesheet>
diff --git a/helm/style/style_prima_del_linguaggio_naturale/theory_pres.xsl b/helm/style/style_prima_del_linguaggio_naturale/theory_pres.xsl
deleted file mode 100644
index 9a96cdc03..000000000
--- a/helm/style/style_prima_del_linguaggio_naturale/theory_pres.xsl
+++ /dev/null
@@ -1,34 +0,0 @@
-<?xml version="1.0"?>
-
-<!--***********************************************************************--> 
-<!-- XSLT version 0.1 of theory sections to HTML:                          -->
-<!-- First draft: May 10 2000, Irene Schena                                -->
-<!--***********************************************************************--> 
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML">
-
-<xsl:include href="annotatedpres.xsl"/>
-
-<xsl:template match="SECTION">
-<xsl:param name="subsect" select="0"/>
-    <xsl:choose>
-    <xsl:when test="$subsect = 0">
-     <html> 
-      <head></head>
-      <body>
-       <m:math><m:mtext>BEGIN SECTION</m:mtext></m:math>
-       <xsl:apply-templates select="*"><xsl:with-param name="subsect" select="1"/></xsl:apply-templates>
-       <m:math><m:mtext>END SECTION</m:mtext></m:math>
-      </body>
-     </html>
-    </xsl:when>
-    <xsl:otherwise>
-     <m:math><m:mtext>BEGIN SECTION</m:mtext></m:math>
-      <xsl:apply-templates select="*"><xsl:with-param name="subsect" select="1"/></xsl:apply-templates>
-     <m:math><m:mtext>END SECTION</m:mtext></m:math>
-    </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-</xsl:stylesheet>
diff --git a/helm/style/theory_content.xsl b/helm/style/theory_content.xsl
deleted file mode 100644
index 9b65cc5b2..000000000
--- a/helm/style/theory_content.xsl
+++ /dev/null
@@ -1,57 +0,0 @@
-<?xml version="1.0"?>
-
-<!--***********************************************************************--> 
-<!-- XSLT version 0.1 of theory objects to theory sections:                -->
-<!-- First draft: May 08 2000, Claudio Sacerdoti Coen, Irene Schena        -->
-<!--***********************************************************************--> 
-
-<xsl:stylesheet version="0.1" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
-
-<xsl:import href="rootcontent.xsl"/>
-
-<!--******************************************************************-->
-<!-- Variable containing the absolute path of the CIC file            -->
-<!--******************************************************************-->
-
-<xsl:variable name="absPath">http://localhost:8081/get?url=</xsl:variable>
-
-<!-- THEORY -->
-
-<xsl:template match="Theory">
-    <SECTION>
-     <xsl:apply-templates><xsl:with-param name="current_uri" select="string(@uri)"/></xsl:apply-templates>
-    </SECTION>
-</xsl:template>
-
-<!-- SUBTHEORY -->
-
-<xsl:template match="SECTION">
-<xsl:param name="current_uri"/>
-    <SECTION>
-     <xsl:apply-templates><xsl:with-param name="current_uri" select="concat($current_uri,&quot;/&quot;,string(@uri))"/></xsl:apply-templates>
-    </SECTION>
-</xsl:template>
-
-<!-- THEORY ELEMENTS -->
-
-<xsl:template match="DEFINITION">
-<xsl:param name="current_uri"/>
-    <xsl:apply-templates select="document(concat(string($absPath),string($current_uri),&quot;/&quot;,string(@uri)))"/>
-</xsl:template>
-
-<xsl:template match="AXIOM">
-<xsl:param name="current_uri"/>
-    <xsl:apply-templates select="document(concat(string($absPath),string($current_uri),&quot;/&quot;,string(@uri)))"/>
-</xsl:template>
-
-<xsl:template match="THEOREM">
-<xsl:param name="current_uri"/>
-    <xsl:apply-templates select="document(concat(string($absPath),string($current_uri),&quot;/&quot;,string(@uri)))"/>
-</xsl:template>
-
-<xsl:template match="VARIABLE">
-<xsl:param name="current_uri"/>
-    <xsl:apply-templates select="document(concat(string($absPath),string($current_uri),&quot;/&quot;,string(@uri)))"/>
-</xsl:template>
-
-</xsl:stylesheet>
diff --git a/helm/style/theory_pres.xsl b/helm/style/theory_pres.xsl
deleted file mode 100644
index 9a96cdc03..000000000
--- a/helm/style/theory_pres.xsl
+++ /dev/null
@@ -1,34 +0,0 @@
-<?xml version="1.0"?>
-
-<!--***********************************************************************--> 
-<!-- XSLT version 0.1 of theory sections to HTML:                          -->
-<!-- First draft: May 10 2000, Irene Schena                                -->
-<!--***********************************************************************--> 
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                              xmlns:m="http://www.w3.org/1998/Math/MathML">
-
-<xsl:include href="annotatedpres.xsl"/>
-
-<xsl:template match="SECTION">
-<xsl:param name="subsect" select="0"/>
-    <xsl:choose>
-    <xsl:when test="$subsect = 0">
-     <html> 
-      <head></head>
-      <body>
-       <m:math><m:mtext>BEGIN SECTION</m:mtext></m:math>
-       <xsl:apply-templates select="*"><xsl:with-param name="subsect" select="1"/></xsl:apply-templates>
-       <m:math><m:mtext>END SECTION</m:mtext></m:math>
-      </body>
-     </html>
-    </xsl:when>
-    <xsl:otherwise>
-     <m:math><m:mtext>BEGIN SECTION</m:mtext></m:math>
-      <xsl:apply-templates select="*"><xsl:with-param name="subsect" select="1"/></xsl:apply-templates>
-     <m:math><m:mtext>END SECTION</m:mtext></m:math>
-    </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-</xsl:stylesheet>