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diff --git a/components/cic_unification/cicRefine.mli b/components/cic_unification/cicRefine.mli
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+(* 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/.
+ *)
+
+exception RefineFailure of string Lazy.t;;
+exception Uncertain of string Lazy.t;;
+exception AssertFailure of string Lazy.t;;
+
+(* type_of_aux' metasenv context term graph                *)
+(* refines [term] and returns the refined form of [term],  *)
+(* its type, the new metasenv and universe graph.          *)
+val type_of_aux':
+ ?localization_tbl:Stdpp.location Cic.CicHash.t ->
+  Cic.metasenv -> Cic.context -> Cic.term -> CicUniv.universe_graph ->
+   Cic.term * Cic.term * Cic.metasenv * CicUniv.universe_graph
+
+(* typecheck metasenv uri obj graph                     *)
+(* refines [obj] and returns the refined form of [obj], *)
+(* the new metasenv and universe graph.                 *)
+(* the [uri] is required only for inductive definitions *)
+val typecheck : 
+ localization_tbl:Stdpp.location Cic.CicHash.t ->
+  Cic.metasenv -> UriManager.uri option -> Cic.obj ->
+   Cic.obj * Cic.metasenv * CicUniv.universe_graph
+
+val insert_coercions: bool ref (* initially true *)
+
+val pack_coercion_obj: Cic.obj -> Cic.obj
+
+val pack_coercion_metasenv: Cic.metasenv -> Cic.metasenv