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(************************************************************************)
(*  v      *   The Coq Proof Assistant  /  The Coq Development Team     *)
(* <O___,, *   INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2010     *)
(*   \VV/  **************************************************************)
(*    //   *      This file is distributed under the terms of the       *)
(*         *       GNU Lesser General Public License Version 2.1        *)
(************************************************************************)

(*i $Id: lemmas.mli 13323 2010-07-24 15:57:30Z herbelin $ i*)

(*i*)
open Names
open Term
open Decl_kinds
open Topconstr
open Tacexpr
open Vernacexpr
open Proof_type
open Pfedit
(*i*)

(* A hook start_proof calls on the type of the definition being started *)
val set_start_hook : (types -> unit) -> unit

val start_proof : identifier -> goal_kind -> types ->
  ?init_tac:tactic -> ?compute_guard:lemma_possible_guards -> 
    declaration_hook -> unit

val start_proof_com : goal_kind ->
  (lident option * (local_binder list * constr_expr * (lident option * recursion_order_expr) option)) list ->
  declaration_hook -> unit

val start_proof_with_initialization : 
  goal_kind -> (bool * lemma_possible_guards * tactic list option) option ->
  (identifier * (types * (name list * Impargs.manual_explicitation list))) list
  -> int list option -> declaration_hook -> unit

(* A hook the next three functions pass to cook_proof *)
val set_save_hook : (Refiner.pftreestate -> unit) -> unit

(*s [save_named b] saves the current completed proof under the name it
was started; boolean [b] tells if the theorem is declared opaque; it
fails if the proof is not completed *)

val save_named : bool -> unit

(* [save_anonymous b name] behaves as [save_named] but declares the theorem
under the name [name] and respects the strength of the declaration *)

val save_anonymous : bool -> identifier -> unit

(* [save_anonymous_with_strength s b name] behaves as [save_anonymous] but
   declares the theorem under the name [name] and gives it the
   strength [strength] *)

val save_anonymous_with_strength : theorem_kind -> bool -> identifier -> unit

(* [admit ()] aborts the current goal and save it as an assmumption *)

val admit : unit -> unit

(* [get_current_context ()] returns the evar context and env of the
   current open proof if any, otherwise returns the empty evar context
   and the current global env *)

val get_current_context : unit -> Evd.evar_map * Environ.env