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diff --git a/helm/software/matita/matitaprover.ml b/helm/software/matita/matitaprover.ml
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+(* Copyright (C) 2006, 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://helm.cs.unibo.it/
+ *)
+
+let raw_preamble buri = "
+inductive eq (A:Type) (x:A) : A \\to Prop \\def refl_eq : eq A x x.
+
+theorem sym_eq : \\forall A:Type.\\forall x,y:A. eq A x y \\to eq A y x.
+intros.elim H. apply refl_eq.
+qed.
+
+theorem eq_elim_r:
+ \\forall A:Type.\\forall x:A. \\forall P: A \\to Prop.
+   P x \\to \\forall y:A. eq A y x \\to P y.
+intros. elim (sym_eq ? ? ? H1).assumption.
+qed.
+
+theorem trans_eq : 
+    \\forall A:Type.\\forall x,y,z:A. eq A x y \\to eq A y z \\to eq A x z.
+intros.elim H1.assumption.
+qed.
+
+theorem eq_f: \\forall  A,B:Type.\\forall f:A\\to B.
+  \\forall x,y:A. eq A x y \\to eq B (f x) (f y).
+intros.elim H.reflexivity.
+qed.
+
+theorem eq_f1: \\forall  A,B:Type.\\forall f:A\\to B.
+  \\forall x,y:A. eq A x y \\to eq B (f y) (f x).
+intros.elim H.reflexivity.
+qed.
+
+default \"equality\"
+ " ^ buri ^ "/eq.ind
+ " ^ buri ^ "/sym_eq.con
+ " ^ buri ^ "/trans_eq.con
+ " ^ buri ^ "/eq_ind.con
+ " ^ buri ^ "/eq_elim_r.con
+ " ^ buri ^ "/eq_f.con
+ " ^ buri ^ "/eq_f1.con.
+
+inductive ex (A:Type) (P:A \\to Prop) : Prop \\def
+    ex_intro: \\forall x:A. P x \\to ex A P.
+interpretation \"exists\" 'exists \\eta.x =
+  (" ^ buri ^ "/ex.ind#xpointer(1/1) _ x).
+
+notation < \"hvbox(\\exists ident i opt (: ty) break . p)\"
+  right associative with precedence 20
+for @{ 'exists ${default
+  @{\\lambda ${ident i} : $ty. $p)}
+  @{\\lambda ${ident i} . $p}}}.
+
+"
+;;
+
+let main () =
+  MatitaInit.fill_registry ();
+  let tptppath = ref "./" in
+  MatitaInit.add_cmdline_spec
+    ["-tptppath",Arg.String (fun s -> tptppath:= s),
+      "Where to find the Axioms/ and Problems/ directory"];
+  MatitaInit.parse_cmdline ();
+  MatitaInit.load_configuration_file ();
+  Helm_registry.set_bool "db.nodb" true;
+  Helm_registry.set_bool "matita.nodisk" true;
+  HLog.set_log_callback (fun _ _ -> ()); 
+  let args = Helm_registry.get_list Helm_registry.string "matita.args" in
+  let inputfile = 
+    match args with
+    | [file] -> file
+    | _ -> prerr_endline "You must specify exactly one .p file."; exit 1
+  in
+  let data = 
+     Tptp2grafite.tptp2grafite ~filename:inputfile ~tptppath:!tptppath
+     ~raw_preamble ()
+  in
+(*   prerr_endline data; *)
+  let is = Ulexing.from_utf8_string data in
+  let gs = GrafiteSync.init () in
+  let ls = 
+    CicNotation2.load_notation ~include_paths:[] 
+      BuildTimeConf.core_notation_script 
+  in
+  Sys.catch_break true;
+  try
+    let _ = 
+      MatitaEngine.eval_from_stream 
+        ~first_statement_only:false 
+        ~include_paths:[]
+        ~clean_baseuri:true
+        ~do_heavy_checks:false
+        ~prompt:false
+        ls gs is
+         (fun _ _ -> ()) 
+(*
+        (fun _ s -> 
+          let pp_ast_statement =
+            GrafiteAstPp.pp_statement ~term_pp:CicNotationPp.pp_term
+            ~lazy_term_pp:CicNotationPp.pp_term ~obj_pp:CicNotationPp.pp_obj
+          in
+          prerr_endline (pp_ast_statement s)) 
+*)
+    in
+    exit 0
+  with exn ->
+    prerr_endline (snd (MatitaExcPp.to_string exn));
+    exit 1
+;;