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diff --git a/contrib/correctness/putil.mli b/contrib/correctness/putil.mli
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+(************************************************************************)
+(*  v      *   The Coq Proof Assistant  /  The Coq Development Team     *)
+(* <O___,, * CNRS-Ecole Polytechnique-INRIA Futurs-Universite Paris Sud *)
+(*   \VV/  **************************************************************)
+(*    //   *      This file is distributed under the terms of the       *)
+(*         *       GNU Lesser General Public License Version 2.1        *)
+(************************************************************************)
+
+(* Certification of Imperative Programs / Jean-Christophe Filliātre *)
+
+(* $Id: putil.mli,v 1.3.2.1 2004/07/16 19:30:06 herbelin Exp $ *)
+
+open Pp
+open Names
+open Term
+open Pmisc
+open Ptype
+open Past
+open Penv
+
+val is_mutable : 'a ml_type_v -> bool
+val is_pure : 'a ml_type_v -> bool
+
+val named_app : ('a -> 'b) -> 'a assertion -> 'b assertion
+val pre_app : ('a -> 'b) -> 'a precondition -> 'b precondition
+val post_app : ('a -> 'b) -> 'a postcondition -> 'b postcondition
+
+val anonymous : 'a -> 'a assertion
+val anonymous_pre : bool -> 'a -> 'a precondition
+val out_post : 'a postcondition option -> 'a
+val pre_of_assert : bool -> 'a assertion -> 'a precondition
+val assert_of_pre : 'a precondition -> 'a assertion
+
+val force_post_name : 'a postcondition option -> 'a postcondition option
+val force_bool_name : 'a postcondition option -> 'a postcondition option
+
+val make_before_after : constr -> constr
+
+val traverse_binders : local_env -> (type_v binder) list -> local_env
+val initial_renaming : local_env -> Prename.t
+
+val apply_pre : Prename.t -> local_env -> constr precondition ->
+  constr precondition
+val apply_post : Prename.t -> local_env -> string -> constr postcondition ->
+  constr postcondition
+val apply_assert : Prename.t -> local_env -> constr assertion ->
+  constr assertion
+
+val type_v_subst : (identifier * identifier) list -> type_v -> type_v
+val type_c_subst : (identifier * identifier) list -> type_c -> type_c
+
+val type_v_rsubst : (identifier * constr) list -> type_v -> type_v
+val type_c_rsubst : (identifier * constr) list -> type_c -> type_c
+
+val make_arrow : ('a ml_type_v binder) list -> 'a ml_type_c -> 'a ml_type_v
+
+val is_mutable_in_env : local_env -> identifier -> bool
+val now_vars : local_env -> constr -> identifier list
+
+val deref_type : 'a ml_type_v -> 'a ml_type_v
+val dearray_type : 'a ml_type_v -> 'a * 'a ml_type_v
+val constant_unit : unit -> constr ml_type_v
+val v_of_constr : constr -> constr ml_type_v
+val c_of_constr : constr -> constr ml_type_c
+val is_pure_cci : constr -> bool
+
+(* pretty printers *)
+
+val pp_type_v : type_v -> std_ppcmds
+val pp_type_c : type_c -> std_ppcmds
+val pp_cc_term : cc_term -> std_ppcmds
+