From 6dd0e56f785c5b7e19b4c0de596f2e8d1baffadb Mon Sep 17 00:00:00 2001
From: Claudio Sacerdoti Coen <claudio.sacerdoticoen@unibo.it>
Date: Thu, 21 Nov 2002 17:00:49 +0000
Subject: [PATCH] The notational stylesheets from CIC to MathML Content are now
 automatically generated by Di Lena's meta_style. Rember to add a new entry to
 servers.txt!!!

---
 helm/style/algebra.xsl    | 453 --------------------------------
 helm/style/arith.xsl      | 322 -----------------------
 helm/style/basic.xsl      | 238 -----------------
 helm/style/reals.xsl      | 319 ----------------------
 helm/style/set.xsl        | 538 --------------------------------------
 helm/style/xslt_index.txt |   5 -
 6 files changed, 1875 deletions(-)
 delete mode 100644 helm/style/algebra.xsl
 delete mode 100644 helm/style/arith.xsl
 delete mode 100644 helm/style/basic.xsl
 delete mode 100644 helm/style/reals.xsl
 delete mode 100644 helm/style/set.xsl

diff --git a/helm/style/algebra.xsl b/helm/style/algebra.xsl
deleted file mode 100644
index 81eed377a..000000000
--- a/helm/style/algebra.xsl
+++ /dev/null
@@ -1,453 +0,0 @@
-<?xml version="1.0"?>
-
-<!-- Copyright (C) 2000, HELM Team                                     -->
-<!--                                                                   -->
-<!-- This file is part of HELM, an Hypertextual, Electronic            -->
-<!-- Library of Mathematics, developed at the Computer Science         -->
-<!-- Department, University of Bologna, Italy.                         -->
-<!--                                                                   -->
-<!-- HELM is free software; you can redistribute it and/or             -->
-<!-- modify it under the terms of the GNU General Public License       -->
-<!-- as published by the Free Software Foundation; either version 2    -->
-<!-- of the License, or (at your option) any later version.            -->
-<!--                                                                   -->
-<!-- HELM is distributed in the hope that it will be useful,           -->
-<!-- but WITHOUT ANY WARRANTY; without even the implied warranty of    -->
-<!-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the     -->
-<!-- GNU General Public License for more details.                      -->
-<!--                                                                   -->
-<!-- You should have received a copy of the GNU General Public License -->
-<!-- along with HELM; if not, write to the Free Software               -->
-<!-- Foundation, Inc., 59 Temple Place - Suite 330, Boston,            -->
-<!-- MA  02111-1307, USA.                                              -->
-<!--                                                                   -->
-<!-- For details, see the HELM World-Wide-Web page,                    -->
-<!-- http://cs.unibo.it/helm/.                                         -->
-
-<!--******************************************************************--> 
-<!-- Algebra                                                          -->
-<!-- First draft: October 2001                                        -->
-<!-- HELM Group: Asperti, Padovani, Sacerdoti, Schena, Guidi          -->
-<!--******************************************************************-->
-
-<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">
-
-
-<!-- ************************* ALGEBRA *********************************-->
-
-
-
-<!-- 0 and 1 -->
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Algebra/CSemiGroups/csg_unit.con']" mode="pure">
- <m:ci definitionURL="{CONST/@uri}" helm:xref="{@id}">0</m:ci>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Algebra/CRings/cr_one.con']" mode="pure">
- <m:ci definitionURL="{CONST/@uri}" helm:xref="{@id}">1</m:ci>
-</xsl:template>
-
-<!-- Unary Operations -->
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Algebra/CGroups/cg_inv.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="arity" select="1"/>
-      <xsl:with-param name="hide" select="1"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'minus'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Algebra/CMetricFields/CMetric_Fields/cmf_abs.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="hide" select="1"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'abs'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<!-- inv (uri errata)
-<xsl:template match="APPLY[CONST/@uri='cic:/Algebra/CRings/exponentiation/nexp.con']" mode="pure">
-   <xsl:variable name="mbody1">
-      <xsl:apply-templates select="*[2]" mode="noannot"/>
-      <xsl:variable name="mbody2">
-         <m:cn>1</m:cn>
-      </xsl:variable>
-      <xsl:call-template name="out-mml-op">
-         <xsl:with-param name="arity" select="1"/>
-         <xsl:with-param name="c-tag" select="CONST"/>
-         <xsl:with-param name="m-tag" select="'minus'"/>
-         <xsl:with-param name="mbody" select="$mbody2"/>
-      </xsl:call-template>
-   </xsl:variable>
-   <xsl:call-template name="out-mml-op">
-      <xsl:with-param name="arity" select="1"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'power'"/>
-      <xsl:with-param name="mbody" select="$mbody1"/>
-   </xsl:call-template>
-</xsl:template>
--->
-
-<!-- Binary Operations and Relations -->
-
-<!-- setoid equality -->
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Algebra/CSetoids/cs_eq.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="hide" select="1"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'eq'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<!-- apart -->
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Algebra/CSetoids/cs_ap.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="hide" select="1"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'neq'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Algebra/COrdFields/leEq.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="hide" select="1"/>
-      <xsl:with-param name="arity" select="2"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'leq'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Algebra/COrdFields/cof_less.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="hide" select="1"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'lt'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<!--
-<xsl:template match="APPLY[CONST/@uri='cic:/Coq/Reals/Rdefinitions/Rge.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="arity" select="2"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'geq'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Coq/Reals/Rdefinitions/Rgt.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="arity" select="2"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'gt'"/>
-   </xsl:call-template>
-</xsl:template>
--->
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Algebra/CRings/cr_plus.con' or
-CONST/@uri='cic:/Algebra/CSemiGroups/csg_op.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="hide" select="1"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'plus'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Algebra/CRings/cr_minus.con' or
- CONST/@uri='cic:/Algebra/CGroups/cg_minus.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="hide" select="1"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'minus'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Algebra/CRings/cr_mult.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="hide" select="1"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'times'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Algebra/CFields/cf_div.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="arity" select="2"/>
-      <xsl:with-param name="hide" select="1"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'divide'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Algebra/CRings/Ring_constructions/nzpro.con' and count(*)='4']" mode="pure">
-   <xsl:apply-templates select="*[3]" mode="pure"/>
-</xsl:template>
-
-<!-- 
-<xsl:template match="APPLY[CONST/@uri='cic:/Coq/Reals/Rbasic_fun/Rmin.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="arity" select="2"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'min'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Coq/Reals/Rbasic_fun/Rmax.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="arity" select="2"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'max'"/>
-   </xsl:call-template>
-</xsl:template>
--->
-
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Algebra/CRings/exponentiation/nexp.con']" mode="pure">
-   <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="$CICURI"/>
-      <xsl:with-param name="second_uri" select="CONST/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="hide" select="$no_params"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'power'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Algebra/CRings/exponentiation/nexp_op.con' or CONST/@uri='cic:/Algebra/Expon/Zexp_def/zexp.con']" mode="pure">
-   <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="$CICURI"/>
-      <xsl:with-param name="second_uri" select="CONST/@uri"/>
-     </xsl:call-template>
-   </xsl:variable>
-   <xsl:variable name="mbody">
-    <xsl:apply-templates mode="noannot" select="*[3+$no_params]"/>
-    <xsl:apply-templates mode="noannot" select="*[2+$no_params]"/>
-   </xsl:variable>
-   <xsl:call-template name="out-mml-op">
-      <xsl:with-param name="hide" select="$no_params"/>
-      <xsl:with-param name="arity" select="2"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'power'"/>
-      <xsl:with-param name="mbody" select="$mbody"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Algebra/COrdFields/absSmall.con']" mode="pure">
-   <xsl:variable name="mbody">
-      <m:apply helm:xref="{@id}">
-       <m:abs definitionURL="{CONST/@uri}" helm:xref="{CONST/@id}"/>
-       <xsl:apply-templates select="*[4]" mode="noannot"/>
-      </m:apply>
-      <xsl:apply-templates select="*[3]" mode="noannot"/>
-   </xsl:variable>
-   <xsl:call-template name="out-mml-op">
-      <xsl:with-param name="hide" select="1"/>
-      <xsl:with-param name="arity" select="2"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'lt'"/>
-      <xsl:with-param name="mbody" select="$mbody"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST[
- attribute::uri='cic:/Algebra/COrdFields/OrdField_Cauchy/seqLimit.con']]" mode="pure">
-    <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="$CICURI"/>
-      <xsl:with-param name="second_uri" select="CONST/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="count(child::*) = 3+$no_params">
-      <m:apply helm:xref="{@id}">
-       <m:eq definitionURL="{CONST/@uri}" helm:xref="{@id}" />
-       <xsl:choose>
-        <xsl:when test="name(*[2+$no_params]) = 'LAMBDA'">
-         <m:apply helm:xref="{CONST/@id}">
-          <m:limit definitionURL="{CONST/@uri}" helm:xref="{CONST/@id}"/>
-          <m:bvar>
-           <m:ci>
-            <xsl:call-template name="insert_subscript"><xsl:with-param name="node_value"><xsl:value-of select="LAMBDA/target/@binder"/></xsl:with-param></xsl:call-template>
-           </m:ci>
-          </m:bvar>
-          <m:lowlimit>
-           <m:infinity/>
-          </m:lowlimit>
-          <xsl:apply-templates select="*[2+$no_params]/target/*[1]" mode="noannot"/>
-         </m:apply>
-        </xsl:when>
-        <xsl:otherwise>
-         <m:apply helm:xref="{CONST/@id}">
-          <m:limit definitionURL="{CONST/@uri}" helm:xref="{CONST/@id}"/>
-          <m:bvar>
-           <m:ci>$x</m:ci>
-          </m:bvar>
-          <m:lowlimit>
-           <m:infinity/>
-          </m:lowlimit>
-          <m:apply>
-           <m:csymbol>app</m:csymbol>
-           <xsl:apply-templates select="*[2+$no_params]" mode="noannot"/>
-           <m:ci>$x</m:ci>
-          </m:apply>
-         </m:apply>
-        </xsl:otherwise>
-       </xsl:choose>
-       <xsl:apply-templates select="*[3+$no_params]" mode="noannot"/>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST[
- attribute::uri='cic:/Algebra/CSums/Sums/sum0.con']]" mode="pure">
-    <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="$CICURI"/>
-      <xsl:with-param name="second_uri" select="CONST/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="count(child::*) = 3+$no_params">
-       <xsl:choose>
-        <xsl:when test="name(*[3+$no_params]) = 'LAMBDA'">
-         <m:apply helm:xref="{CONST/@id}">
-          <m:sum definitionURL="{CONST/@uri}" helm:xref="{CONST/@id}"/>
-          <m:bvar>
-           <m:ci>
-            <xsl:call-template name="insert_subscript"><xsl:with-param name="node_value"><xsl:value-of select="LAMBDA/target/@binder"/></xsl:with-param></xsl:call-template>
-           </m:ci>
-          </m:bvar>
-          <m:condition>
-           <m:apply>
-            <m:lt/>
-            <m:ci>
-             <xsl:call-template name="insert_subscript"><xsl:with-param name="node_value"><xsl:value-of select="LAMBDA/target/@binder"/></xsl:with-param></xsl:call-template>
-            </m:ci>
-            <xsl:apply-templates mode="noannot" select="*[2+$no_params]"/>
-           </m:apply>
-          </m:condition>
-          <xsl:apply-templates select="*[3+$no_params]/target/*[1]" mode="noannot"/>
-         </m:apply>
-        </xsl:when>
-        <xsl:otherwise>
-         <m:apply helm:xref="{CONST/@id}">
-          <m:sum definitionURL="{CONST/@uri}" helm:xref="{CONST/@id}"/>
-          <m:bvar>
-           <m:ci>$x</m:ci>
-          </m:bvar>
-          <m:condition>
-           <m:apply>
-            <m:lt/>
-            <m:ci>$x</m:ci>
-            <xsl:apply-templates mode="noannot" select="*[2+$no_params]"/>
-           </m:apply>
-          </m:condition>
-          <m:apply>
-           <m:csymbol>app</m:csymbol>
-           <xsl:apply-templates select="*[3+$no_params]" mode="noannot"/>
-           <m:ci>$x</m:ci>
-          </m:apply>
-         </m:apply>
-        </xsl:otherwise>
-       </xsl:choose>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<!-- sum -->
-<xsl:template match="APPLY[CONST[
- attribute::uri='cic:/Algebra/CSums/Sums/sum.con']]" mode="pure">
-    <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="$CICURI"/>
-      <xsl:with-param name="second_uri" select="CONST/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="count(child::*) = 4+$no_params">
-       <xsl:choose>
-        <xsl:when test="name(*[4+$no_params]) = 'LAMBDA'">
-         <m:apply helm:xref="{CONST/@id}">
-          <m:sum definitionURL="{CONST/@uri}" helm:xref="{CONST/@id}"/>
-          <m:bvar>
-           <m:ci>
-            <xsl:call-template name="insert_subscript"><xsl:with-param name="node_value"><xsl:value-of select="LAMBDA/target/@binder"/></xsl:with-param></xsl:call-template>
-           </m:ci>
-          </m:bvar>
-          <m:lowlimit>
-           <xsl:apply-templates mode="noannot" select="*[2+$no_params]"/>
-          </m:lowlimit>
-          <m:uplimit>
-           <xsl:apply-templates mode="noannot" select="*[3+$no_params]"/>
-          </m:uplimit>
-          <xsl:apply-templates select="*[4+$no_params]/target/*[1]" mode="noannot"/>
-         </m:apply>
-        </xsl:when>
-        <xsl:otherwise>
-         <m:apply helm:xref="{CONST/@id}">
-          <m:sum definitionURL="{CONST/@uri}" helm:xref="{CONST/@id}"/>
-          <m:bvar>
-           <m:ci>$x</m:ci>
-          </m:bvar>
-          <m:lowlimit>
-           <xsl:apply-templates mode="noannot" select="*[2+$no_params]"/>
-          </m:lowlimit>
-          <m:uplimit>
-           <xsl:apply-templates mode="noannot" select="*[3+$no_params]"/>
-          </m:uplimit>
-          <m:apply>
-           <m:csymbol>app</m:csymbol>
-           <xsl:apply-templates select="*[4+$no_params]" mode="noannot"/>
-           <m:ci>$x</m:ci>
-          </m:apply>
-         </m:apply>
-        </xsl:otherwise>
-       </xsl:choose>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-<!-- polynomials -->
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Algebra/CPolynomials/CPoly_CRing_ctd/cpoly_apply_fun.con']" mode="pure">
-   <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="$CICURI"/>
-      <xsl:with-param name="second_uri" select="CONST/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="count(child::*) = 3+$no_params">
-      <m:apply>
-       <m:csymbol>app</m:csymbol>
-       <xsl:apply-templates mode="noannot" select="*[2+$no_params]"/>
-       <xsl:apply-templates mode="noannot" select="*[3+$no_params]"/>
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-</xsl:stylesheet>
-
-
diff --git a/helm/style/arith.xsl b/helm/style/arith.xsl
deleted file mode 100644
index 5c46c390f..000000000
--- a/helm/style/arith.xsl
+++ /dev/null
@@ -1,322 +0,0 @@
-<?xml version="1.0"?>
-
-<!-- Copyright (C) 2000, HELM Team                                     -->
-<!--                                                                   -->
-<!-- This file is part of HELM, an Hypertextual, Electronic            -->
-<!-- Library of Mathematics, developed at the Computer Science         -->
-<!-- Department, University of Bologna, Italy.                         -->
-<!--                                                                   -->
-<!-- HELM is free software; you can redistribute it and/or             -->
-<!-- modify it under the terms of the GNU General Public License       -->
-<!-- as published by the Free Software Foundation; either version 2    -->
-<!-- of the License, or (at your option) any later version.            -->
-<!--                                                                   -->
-<!-- HELM is distributed in the hope that it will be useful,           -->
-<!-- but WITHOUT ANY WARRANTY; without even the implied warranty of    -->
-<!-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the     -->
-<!-- GNU General Public License for more details.                      -->
-<!--                                                                   -->
-<!-- You should have received a copy of the GNU General Public License -->
-<!-- along with HELM; if not, write to the Free Software               -->
-<!-- Foundation, Inc., 59 Temple Place - Suite 330, Boston,            -->
-<!-- MA  02111-1307, USA.                                              -->
-<!--                                                                   -->
-<!-- For details, see the HELM World-Wide-Web page,                    -->
-<!-- http://cs.unibo.it/helm/.                                         -->
-
-<!--******************************************************************--> 
-<!-- Arithmetics                                                      -->
-<!-- First draft: March 20 2001, Ferruccio Guidi                      -->
-<!-- Zarith: July 2001, Andrea Asperti                                -->
-<!--******************************************************************-->
-
-<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">
-
-<!-- ************************** ARITHMETICS ****************************** -->
-
-<!-- S and O -->
-<xsl:template match="APPLY[*[position()=1 and name()='MUTCONSTRUCT' and @uri='cic:/Coq/Init/Datatypes/nat.ind' and @noConstr='2'] and count(*)=2]" mode="pure">
-   <xsl:apply-templates select="*[2]" mode="succ">
-    <xsl:with-param name="n" select="1"/>
-    <xsl:with-param name="iden" select="@id"/>
-   </xsl:apply-templates>
-</xsl:template>
-
-<xsl:template match="*" mode="succ">
- <xsl:param name="n" select="0"/>
- <xsl:param name="iden" select="''"/>
- <xsl:choose>
-  <xsl:when test="name()='APPLY' and *[position()=1 and name()='MUTCONSTRUCT'
-and @uri='cic:/Coq/Init/Datatypes/nat.ind' and @noConstr='2']">
-   <xsl:apply-templates select="*[2]" mode="succ">
-    <xsl:with-param name="n" select="$n +1"/>
-    <xsl:with-param name="iden" select="$iden"/>
-   </xsl:apply-templates>
-  </xsl:when>
-  <xsl:when test="name()='MUTCONSTRUCT' and @uri='cic:/Coq/Init/Datatypes/nat.ind' and @noConstr='1'">
-   <m:cn helm:xref="{$iden}"><xsl:value-of select="$n"/></m:cn>
-  </xsl:when>
-  <xsl:otherwise>
-   <m:apply helm:xref="{$iden}">
-    <m:plus/>
-    <m:cn><xsl:value-of select="$n"/></m:cn>
-    <xsl:apply-templates select="." mode="pure"/>
-   </m:apply>
-  </xsl:otherwise>
- </xsl:choose>
-</xsl:template>
-
-
-<xsl:template match="APPLY[MUTIND/@uri='cic:/Coq/Init/Peano/le.ind']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="arity" select="2"/>
-      <xsl:with-param name="c-tag" select="MUTIND"/>
-      <xsl:with-param name="m-tag" select="'leq'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Coq/Init/Peano/lt.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="arity" select="2"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'lt'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Coq/Init/Peano/ge.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="arity" select="2"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'geq'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Coq/Init/Peano/gt.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="arity" select="2"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'gt'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Coq/Init/Peano/plus.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="arity" select="2"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'plus'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Coq/Arith/Minus/minus.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="arity" select="2"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'minus'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Coq/Init/Peano/mult.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="arity" select="2"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'times'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Coq/Arith/Min/min.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="arity" select="2"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'min'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<!-- **************************** Zarith ******************************** -->
-
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Coq/ZArith/zarith_aux/Zle.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="arity" select="2"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'leq'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Coq/ZArith/zarith_aux/Zlt.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="arity" select="2"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'lt'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Coq/ZArith/zarith_aux/Zge.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="arity" select="2"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'geq'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Coq/ZArith/zarith_aux/Zgt.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="arity" select="2"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'gt'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Coq/ZArith/fast_integer/fast_integers/Zplus.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="arity" select="2"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'plus'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Coq/ZArith/zarith_aux/Zminus.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="arity" select="2"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'minus'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Coq/ZArith/fast_integer/fast_integers/Zopp.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="arity" select="1"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'minus'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Coq/ZArith/fast_integer/fast_integers/Zmult.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="arity" select="2"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'times'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Coq/ZArith/zarith_aux/Zmin.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="arity" select="2"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'min'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Coq/ZArith/zarith_aux/absolu.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="arity" select="1"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'abs'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<!-- POS, NEG e ZERO -->
-
-<xsl:template match="APPLY[*[position()=1 and name()='MUTCONSTRUCT' and @uri='cic:/Coq/ZArith/fast_integer/fast_integers/Z.ind' and @noConstr='2'] and count(*)=2]" mode="pure">
-   <xsl:apply-templates select="*[2]" mode="Zpositive">
-    <xsl:with-param name="base" select="0"/>
-    <xsl:with-param name="exp" select="1"/>
-    <xsl:with-param name="iden" select="*[2]/@id"/>
-   </xsl:apply-templates>
-</xsl:template>
- 
-<xsl:template match="APPLY[*[position()=1 and name()='MUTCONSTRUCT' and @uri='cic:/Coq/ZArith/fast_integer/fast_integers/Z.ind' and @noConstr='3'] and count(*)=2]" mode="pure">
-   <m:apply helm:xref="{@id}">
-    <m:minus definitionURL="{*[1]/@uri}" helm:xref="{*[1]/@id}"/>
-    <xsl:apply-templates select="*[2]" mode="Zpositive">
-     <xsl:with-param name="base" select="0"/>
-     <xsl:with-param name="exp" select="1"/>
-     <xsl:with-param name="iden" select="*[2]/@id"/>
-    </xsl:apply-templates>
-   </m:apply>
-</xsl:template>
-
-<xsl:template match="MUTCONSTRUCT[@uri='cic:/Coq/ZArith/fast_integer/fast_integers/Z.ind' and @noConstr='1']" mode="pure">
-   <m:ci definitionURL="{@uri}" helm:xref="{@id}">0</m:ci>
-</xsl:template>
-
-<!-- prova di notazione per positive -->
-
-<xsl:template match="APPLY[*[position()=1 and name()='MUTCONSTRUCT' and @uri='cic:/Coq/ZArith/fast_integer/fast_integers/positive.ind']]" mode="pure">
-   <xsl:apply-templates select="." mode="Zpositive">
-    <xsl:with-param name="base" select="0"/>
-    <xsl:with-param name="exp" select="1"/>
-    <xsl:with-param name="iden" select="@id"/>
-   </xsl:apply-templates>
-</xsl:template>
-
-<xsl:template match="MUTCONSTRUCT[@uri='cic:/Coq/ZArith/fast_integer/fast_integers/positive.ind' and @noConstr='3']" mode="pure">
- <m:ci definitionURL="{@uri}" helm:xref="{@id}">1</m:ci>
-</xsl:template> 
-
-<xsl:template match="*" mode="Zpositive">
- <xsl:param name="base" select="0"/>
- <xsl:param name="exp" select="1"/>
- <xsl:param name="iden" select="''"/>
- <xsl:choose>
-  <xsl:when test="name()='APPLY' and *[position()=1 and name()='MUTCONSTRUCT'
-and @uri='cic:/Coq/ZArith/fast_integer/fast_integers/positive.ind' and @noConstr='1']">
-   <xsl:apply-templates select="*[2]" mode="Zpositive">
-    <xsl:with-param name="base" select="$base + $exp"/>
-    <xsl:with-param name="exp" select="2 * $exp"/>
-    <xsl:with-param name="iden" select="$iden"/>
-   </xsl:apply-templates>
-  </xsl:when>
-  <xsl:when test="name()='APPLY' and *[position()=1 and name()='MUTCONSTRUCT' 
-and @uri='cic:/Coq/ZArith/fast_integer/fast_integers/positive.ind' and @noConstr='2']">
-   <xsl:apply-templates select="*[2]" mode="Zpositive">
-    <xsl:with-param name="base" select="$base"/>
-    <xsl:with-param name="exp" select="2 * $exp"/>
-    <xsl:with-param name="iden" select="$iden"/>
-   </xsl:apply-templates>
-  </xsl:when>
-  <xsl:when test="name()='MUTCONSTRUCT' and @uri='cic:/Coq/ZArith/fast_integer/fast_integers/positive.ind' and @noConstr='3'">
-   <m:ci helm:xref="{$iden}"><xsl:value-of select="$base + $exp"/></m:ci>
-  </xsl:when>
-  <xsl:otherwise>
-   <xsl:choose>
-    <xsl:when test="$base = 0">
-     <xsl:choose>
-      <xsl:when test="$exp = 1">
-       <xsl:apply-templates select="." mode="pure"/>
-      </xsl:when>
-      <xsl:otherwise>
-       <m:apply helm:xref="{$iden}">
-        <m:times/>
-        <m:ci><xsl:value-of select="$exp"/></m:ci>
-        <xsl:apply-templates select="." mode="pure"/>
-       </m:apply>
-      </xsl:otherwise>
-     </xsl:choose>
-    </xsl:when>
-    <xsl:otherwise>
-     <m:apply helm:xref="{$iden}">
-      <m:plus/>
-      <m:ci><xsl:value-of select="$base"/></m:ci>
-      <xsl:choose>
-       <xsl:when test="$exp = 1">
-        <xsl:apply-templates select="." mode="pure"/>
-       </xsl:when>
-       <xsl:otherwise>
-        <m:apply helm:xref="{$iden}">
-         <m:times/>
-         <m:ci><xsl:value-of select="$exp"/></m:ci>
-         <xsl:apply-templates select="." mode="pure"/>
-        </m:apply>
-       </xsl:otherwise>
-      </xsl:choose>
-     </m:apply>
-    </xsl:otherwise>
-   </xsl:choose>
-  </xsl:otherwise>
- </xsl:choose>
-</xsl:template>
-
-
-</xsl:stylesheet>
diff --git a/helm/style/basic.xsl b/helm/style/basic.xsl
deleted file mode 100644
index a9d82ddac..000000000
--- a/helm/style/basic.xsl
+++ /dev/null
@@ -1,238 +0,0 @@
-<?xml version="1.0"?>
-
-<!-- Copyright (C) 2000, HELM Team                                     -->
-<!--                                                                   -->
-<!-- This file is part of HELM, an Hypertextual, Electronic            -->
-<!-- Library of Mathematics, developed at the Computer Science         -->
-<!-- Department, University of Bologna, Italy.                         -->
-<!--                                                                   -->
-<!-- HELM is free software; you can redistribute it and/or             -->
-<!-- modify it under the terms of the GNU General Public License       -->
-<!-- as published by the Free Software Foundation; either version 2    -->
-<!-- of the License, or (at your option) any later version.            -->
-<!--                                                                   -->
-<!-- HELM is distributed in the hope that it will be useful,           -->
-<!-- but WITHOUT ANY WARRANTY; without even the implied warranty of    -->
-<!-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the     -->
-<!-- GNU General Public License for more details.                      -->
-<!--                                                                   -->
-<!-- You should have received a copy of the GNU General Public License -->
-<!-- along with HELM; if not, write to the Free Software               -->
-<!-- Foundation, Inc., 59 Temple Place - Suite 330, Boston,            -->
-<!-- MA  02111-1307, USA.                                              -->
-<!--                                                                   -->
-<!-- For details, see the HELM World-Wide-Web page,                    -->
-<!-- http://cs.unibo.it/helm/.                                         -->
-
-<!--******************************************************************--> 
-<!-- Basic Logic                                                      -->
-<!-- First draft: April 3 2000                                        -->
-<!-- HELM Group: Asperti, Padovani, Sacerdoti, Schena, Guidi          -->
-<!--******************************************************************-->
-
-<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">
-
-
-<!-- ************************* 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:call-template name="insert_subscript"><xsl:with-param name="node_value"><xsl:value-of select="*[3]/target/@binder"/></xsl:with-param></xsl:call-template></m:ci>
-       </m:bvar>
-       <m:condition>
-        <xsl:apply-templates select="*[2]" mode="pure"/>
-       </m:condition>
-       <xsl:apply-templates select="LAMBDA/target" mode="noannot"/>
-      </xsl:when>
-      <xsl:otherwise>
-       <m:bvar>
-        <m:ci>$x</m:ci>
-       </m:bvar>
-       <m:condition>
-        <xsl:apply-templates select="*[2]" mode="pure"/>
-       </m:condition>
-       <m:apply>
-        <m:csymbol>app</m:csymbol>
-        <xsl:apply-templates select="*[3]" mode="noannot"/>
-        <m:ci>$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:call-template name="insert_subscript"><xsl:with-param name="node_value"><xsl:value-of select="$bvarname"/></xsl:with-param></xsl:call-template></m:ci>
-       </m:bvar>
-       <m:condition>
-        <xsl:apply-templates select="LAMBDA[1]/target" mode="noannot"/>
-       </m:condition>
-       <xsl:choose>
-        <xsl:when test="(name(*[4]) = 'LAMBDA') and 
-           ($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:call-template name="insert_subscript"><xsl:with-param name="node_value"><xsl:value-of select="$bvarname"/></xsl:with-param></xsl:call-template></m:ci>
-         </m:apply>
-        </xsl:otherwise>
-       </xsl:choose>
-      </xsl:when>
-      <xsl:otherwise>
-       <xsl:choose>
-        <xsl:when test="name(*[4]) = 'LAMBDA'">
-         <xsl:variable name="bvarname" select="*[4]/target/@binder"/>
-         <m:bvar>
-          <m:ci><xsl:call-template name="insert_subscript"><xsl:with-param name="node_value"><xsl:value-of select="$bvarname"/></xsl:with-param></xsl:call-template></m:ci>
-         </m:bvar>
-         <m:condition>
-          <m:apply>
-           <m:csymbol>app</m:csymbol>
-           <xsl:apply-templates select="*[3]" mode="noannot"/>
-           <m:ci><xsl:call-template name="insert_subscript"><xsl:with-param name="node_value"><xsl:value-of select="$bvarname"/></xsl:with-param></xsl:call-template></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 and TYPE EQUALITY -->
-
-<xsl:template match="APPLY[MUTIND/@uri='cic:/Coq/Init/Logic/Equality/eq.ind']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="hide" select="1"/>
-      <xsl:with-param name="c-tag" select="MUTIND"/>
-      <xsl:with-param name="m-tag" select="'eq'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[MUTIND/@uri='cic:/Coq/Init/Logic_Type/eqT.ind']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="hide" select="1"/>
-      <xsl:with-param name="c-tag" select="MUTIND"/>
-      <xsl:with-param name="m-tag" select="'eq'"/>
-   </xsl:call-template>
-</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 ********************************* -->
-
-<!-- see arith.xsl --> <!-- FG -->
-
-</xsl:stylesheet>
diff --git a/helm/style/reals.xsl b/helm/style/reals.xsl
deleted file mode 100644
index 09fd63ac2..000000000
--- a/helm/style/reals.xsl
+++ /dev/null
@@ -1,319 +0,0 @@
-<?xml version="1.0"?>
-
-<!-- Copyright (C) 2000, HELM Team                                     -->
-<!--                                                                   -->
-<!-- This file is part of HELM, an Hypertextual, Electronic            -->
-<!-- Library of Mathematics, developed at the Computer Science         -->
-<!-- Department, University of Bologna, Italy.                         -->
-<!--                                                                   -->
-<!-- HELM is free software; you can redistribute it and/or             -->
-<!-- modify it under the terms of the GNU General Public License       -->
-<!-- as published by the Free Software Foundation; either version 2    -->
-<!-- of the License, or (at your option) any later version.            -->
-<!--                                                                   -->
-<!-- HELM is distributed in the hope that it will be useful,           -->
-<!-- but WITHOUT ANY WARRANTY; without even the implied warranty of    -->
-<!-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the     -->
-<!-- GNU General Public License for more details.                      -->
-<!--                                                                   -->
-<!-- You should have received a copy of the GNU General Public License -->
-<!-- along with HELM; if not, write to the Free Software               -->
-<!-- Foundation, Inc., 59 Temple Place - Suite 330, Boston,            -->
-<!-- MA  02111-1307, USA.                                              -->
-<!--                                                                   -->
-<!-- For details, see the HELM World-Wide-Web page,                    -->
-<!-- http://cs.unibo.it/helm/.                                         -->
-
-<!--******************************************************************--> 
-<!-- Reals                                                            -->
-<!-- First draft: April 3 2000                                        -->
-<!-- HELM Group: Asperti, Padovani, Sacerdoti, Schena, Guidi          -->
-<!--******************************************************************-->
-
-<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">
-
-
-<!-- ************************* LOGIC *********************************-->
-
-<!-- REALS -->
-
-<!--
-<xsl:template match="CONST[attribute::uri='cic:/Coq/Reals/Rdefinitions/R.con']" mode="pure">
- <m:reals/>
-</xsl:template>
--->
-
-<!-- 0 e 1 -->
-
-<xsl:template match="CONST[attribute::uri='cic:/Coq/Reals/Rdefinitions/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/Rdefinitions/R1.con']" mode="pure">
- <m:cn definitionURL="{@uri}" helm:xref="{@id}">1</m:cn>
-</xsl:template>
-
-<!-- Unary Operations and power -->
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Coq/Reals/Rdefinitions/Ropp.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="arity" select="1"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'minus'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Coq/Reals/Rbasic_fun/Rabsolu.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="arity" select="1"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'abs'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Coq/Reals/Rfunctions/fact.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="arity" select="1"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'factorial'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Coq/Reals/Rbase/Rsqr.con']" mode="pure">
-   <xsl:variable name="mbody">
-      <xsl:apply-templates select="*[2]" mode="noannot"/>
-      <m:cn>2</m:cn>
-   </xsl:variable>
-   <xsl:call-template name="out-mml-op">
-      <xsl:with-param name="arity" select="1"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'power'"/>
-      <xsl:with-param name="mbody" select="$mbody"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Coq/Reals/Rdefinitions/Rinv.con']" mode="pure">
-   <xsl:variable name="mbody1">
-      <xsl:apply-templates select="*[2]" mode="noannot"/>
-      <xsl:variable name="mbody2">
-         <m:cn>1</m:cn>
-      </xsl:variable>
-      <xsl:call-template name="out-mml-op">
-         <xsl:with-param name="arity" select="1"/>
-         <xsl:with-param name="c-tag" select="CONST"/>
-         <xsl:with-param name="m-tag" select="'minus'"/>
-         <xsl:with-param name="mbody" select="$mbody2"/>
-      </xsl:call-template>
-   </xsl:variable>
-   <xsl:call-template name="out-mml-op">
-      <xsl:with-param name="arity" select="1"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'power'"/>
-      <xsl:with-param name="mbody" select="$mbody1"/>
-   </xsl:call-template>
-</xsl:template>
-
-<!-- Binary Operations and Relations -->
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Coq/Reals/Rdefinitions/Rle.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="arity" select="2"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'leq'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Coq/Reals/Rdefinitions/Rlt.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="arity" select="2"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'lt'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Coq/Reals/Rdefinitions/Rge.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="arity" select="2"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'geq'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Coq/Reals/Rdefinitions/Rgt.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="arity" select="2"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'gt'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Coq/Reals/Rdefinitions/Rplus.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="arity" select="2"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'plus'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Coq/Reals/Rdefinitions/Rminus.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="arity" select="2"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'minus'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Coq/Reals/Rdefinitions/Rmult.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="arity" select="2"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'times'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Coq/Reals/Rdefinitions/Rdiv.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="arity" select="2"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'divide'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Coq/Reals/Rbasic_fun/Rmin.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="arity" select="2"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'min'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Coq/Reals/Rbasic_fun/Rmax.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="arity" select="2"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'max'"/>
-   </xsl:call-template>
-</xsl:template>
-
-<xsl:template match="APPLY[CONST/@uri='cic:/Coq/Reals/Rfunctions/pow.con']" mode="pure">
-   <xsl:call-template name="mk-mml-op-noannot">
-      <xsl:with-param name="arity" select="2"/>
-      <xsl:with-param name="c-tag" select="CONST"/>
-      <xsl:with-param name="m-tag" select="'power'"/>
-   </xsl:call-template>
-</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:call-template name="insert_subscript"><xsl:with-param name="node_value"><xsl:value-of select="LAMBDA/target/@binder"/></xsl:with-param></xsl:call-template>
-           </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>
-            <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>$x</m:ci>
-          </m:bvar>
-          <m:lowlimit>
-           <xsl:apply-templates select="*[5]" mode="noannot"/>
-          </m:lowlimit>
-          <m:apply>
-           <m:csymbol>app</m:csymbol>
-           <xsl:apply-templates select="*[2]" mode="noannot"/>
-           <m:ci>$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:call-template name="insert_subscript"><xsl:with-param name="node_value"><xsl:value-of select="LAMBDA[1]/target/@binder"/></xsl:with-param></xsl:call-template></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/set.xsl b/helm/style/set.xsl
deleted file mode 100644
index f1f7b7e50..000000000
--- a/helm/style/set.xsl
+++ /dev/null
@@ -1,538 +0,0 @@
-<?xml version="1.0"?>
-
-<!-- Copyright (C) 2000, HELM Team                                     -->
-<!--                                                                   -->
-<!-- This file is part of HELM, an Hypertextual, Electronic            -->
-<!-- Library of Mathematics, developed at the Computer Science         -->
-<!-- Department, University of Bologna, Italy.                         -->
-<!--                                                                   -->
-<!-- HELM is free software; you can redistribute it and/or             -->
-<!-- modify it under the terms of the GNU General Public License       -->
-<!-- as published by the Free Software Foundation; either version 2    -->
-<!-- of the License, or (at your option) any later version.            -->
-<!--                                                                   -->
-<!-- HELM is distributed in the hope that it will be useful,           -->
-<!-- but WITHOUT ANY WARRANTY; without even the implied warranty of    -->
-<!-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the     -->
-<!-- GNU General Public License for more details.                      -->
-<!--                                                                   -->
-<!-- You should have received a copy of the GNU General Public License -->
-<!-- along with HELM; if not, write to the Free Software               -->
-<!-- Foundation, Inc., 59 Temple Place - Suite 330, Boston,            -->
-<!-- MA  02111-1307, USA.                                              -->
-<!--                                                                   -->
-<!-- For details, see the HELM World-Wide-Web page,                    -->
-<!-- http://cs.unibo.it/helm/.                                         -->
-
-<!--******************************************************************--> 
-<!-- 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">
-
-
-<!-- ************************* LOGIC *********************************-->
-
-
-
-<xsl:template match="*" mode="set">
-    <xsl:choose>
-     <xsl:when test="name() = 'LAMBDA'">
-      <m:set>
-       <m:bvar>
-        <m:ci>
-         <xsl:call-template name="insert_subscript"><xsl:with-param name="node_value"><xsl:value-of select="target/@binder"/></xsl:with-param></xsl:call-template>
-        </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="$CICURI"/>
-      <xsl:with-param name="second_uri" select="CONST/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($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+$no_params]" mode="set" /> 
-      </m:apply>
-     </xsl:when>
-     <xsl:otherwise>
-      <xsl:apply-imports/>
-     </xsl:otherwise>
-    </xsl:choose>
-</xsl:template>
-
-
-<!-- NOT-IN -->
-<!-- NOT ha no parameters -->
-<xsl:template match="APPLY[CONST[attribute::uri='cic:/Coq/Init/Logic/not.con']
-and (count(child::*) = 2) and APPLY[CONST[attribute::uri='cic:/Coq/Sets/Ensembles/Ensembles/In.con']]]" mode="pure">
-    <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="$CICURI"/>
-      <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="pure">
-    <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="$CICURI"/>
-      <xsl:with-param name="second_uri" select="MUTIND/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($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="pure">
-    <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="$CICURI"/>
-      <xsl:with-param name="second_uri" select="MUTIND/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($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="pure">
-    <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="$CICURI"/>
-      <xsl:with-param name="second_uri" select="MUTIND/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($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="pure">
-    <xsl:variable name="no_params">
-     <xsl:call-template name="get_no_params">
-      <xsl:with-param name="first_uri" select="$CICURI"/>
-      <xsl:with-param name="second_uri" select="MUTIND/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($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="$CICURI"/>
-      <xsl:with-param name="second_uri" select="MUTIND/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($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="$CICURI"/>
-      <xsl:with-param name="second_uri" select="MUTIND/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($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="$CICURI"/>
-      <xsl:with-param name="second_uri" select="CONST/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($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="$CICURI"/>
-      <xsl:with-param name="second_uri" select="CONST/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($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="$CICURI"/>
-      <xsl:with-param name="second_uri" select="CONST/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($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="$CICURI"/>
-      <xsl:with-param name="second_uri" select="CONST/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($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="$CICURI"/>
-      <xsl:with-param name="second_uri" select="CONST/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($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="$CICURI"/>
-      <xsl:with-param name="second_uri" select="MUTIND/@uri"/>
-     </xsl:call-template>
-    </xsl:variable>
-    <xsl:choose>
-     <xsl:when test="(count(child::*) - number($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>
-
-<!-- *******************  SIGMA TYPES  **************************** -->
-
-<xsl:template match="APPLY[MUTIND[attribute::uri='cic:/Coq/Init/Specif/Subsets/sig.ind']]" mode="pure">
- <xsl:choose>
-  <xsl:when test="count(child::*) = 3">
-   <xsl:choose>
-    <xsl:when test="name(*[3]) = 'LAMBDA'">
-     <m:set>
-       <m:bvar>
-        <m:ci>
-         <xsl:call-template name="insert_subscript"><xsl:with-param name="node_value"><xsl:value-of select="*[3]/target/@binder"/></xsl:with-param></xsl:call-template>
-        </m:ci>
-        <m:type>
-         <xsl:apply-templates select="*[3]/source/*[1]" mode="noannot"/>
-        </m:type>
-       </m:bvar>
-       <m:condition>
-        <xsl:apply-templates select="*[3]/target/*[1]" mode="noannot"/>
-       </m:condition>
-     </m:set>
-    </xsl:when>
-    <xsl:otherwise>
-     <m:set>
-       <m:bvar>
-        <m:ci>$x</m:ci>
-        <m:type>
-         <xsl:apply-templates select="*[2]" mode="noannot"/>
-        </m:type>
-       </m:bvar>
-       <m:condition>
-        <m:apply>
-         <m:csymbol>app</m:csymbol>
-         <xsl:apply-templates select="*[3]" mode="noannot"/>
-         <m:ci>$x</m:ci>
-        </m:apply>
-       </m:condition>
-     </m:set>
-    </xsl:otherwise>
-   </xsl:choose>
-  </xsl:when>
-  <xsl:otherwise>
-   <xsl:apply-imports/>
-  </xsl:otherwise>
- </xsl:choose>
-</xsl:template>
-
-
-</xsl:stylesheet>
diff --git a/helm/style/xslt_index.txt b/helm/style/xslt_index.txt
index f2e42135f..2f31b969a 100644
--- a/helm/style/xslt_index.txt
+++ b/helm/style/xslt_index.txt
@@ -1,8 +1,5 @@
-algebra.xsl
 annotatedcont.xsl
 annotatedpres.xsl
-arith.xsl
-basic.xsl
 content.xsl
 content_to_html.xsl
 contentlib.xsl
@@ -30,12 +27,10 @@ objcontent.xsl
 objtheorycontent.xsl
 params.xsl
 proofs.xsl
-reals.xsl
 ricerca.xsl
 ring.xsl
 rootcontent.xsl
 roottheory.xsl
-set.xsl
 show_dc.xsl
 theory_content.xsl
 theory_pres.xsl
-- 
2.39.2