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diff --git a/components/cic_proof_checking/freshNamesGenerator.mli b/components/cic_proof_checking/freshNamesGenerator.mli
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+(* Copyright (C) 2004, 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/.
+ *)
+
+(* mk_fresh_name metasenv context name typ             *)
+(* returns an identifier which is fresh in the context *)
+(* and that resembles [name] as much as possible.      *)
+(* [typ] will be the type of the variable              *)
+val mk_fresh_name :
+  subst:Cic.substitution ->
+  Cic.metasenv -> Cic.context -> Cic.name -> typ:Cic.term -> Cic.name
+
+(* mk_fresh_names metasenv context term                *)
+(* returns a term t' convertible with term where all   *)
+(* matita_dummies have been replaced by fresh names    *)
+
+val mk_fresh_names :
+  subst:Cic.substitution ->
+  Cic.metasenv -> Cic.context -> Cic.term -> Cic.term 
+
+(* clean_dummy_dependent_types term                               *)
+(* returns a copy of [term] where every dummy dependent product *)
+(* have been replaced with a non-dependent product and where    *)
+(* dummy let-ins have been removed.                             *)
+val clean_dummy_dependent_types : Cic.term -> Cic.term