(* Copyright (C) 2000-2002, 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 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 : ProofEngineTypes.mk_fresh_name_type

(* identity_relocation_list_for_metavariable i canonical_context         *)
(* returns the identity relocation list, which is the list               *)
(* [Rel 1 ; ... ; Rel n] where n = List.length [canonical_context]       *)
val identity_relocation_list_for_metavariable :
  'a option list -> Cic.term option list

(* Returns the first meta whose number is above the *)
(* number of the higher meta.                       *)
val new_meta : proof:ProofEngineTypes.proof -> int

val subst_meta_in_proof :
  ProofEngineTypes.proof ->
  int -> Cic.term -> Cic.metasenv ->
  ProofEngineTypes.proof * Cic.metasenv
val subst_meta_and_metasenv_in_proof :
  ProofEngineTypes.proof ->
  int -> (Cic.term -> Cic.term) -> Cic.metasenv ->
  ProofEngineTypes.proof * Cic.metasenv