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(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(* * (see LICENSE file for the text of the license) *)
(************************************************************************)
open Ccalgo
open Constr
type rule=
Ax of constr
| SymAx of constr
| Refl of term
| Trans of proof*proof
| Congr of proof*proof
| Inject of proof*pconstructor*int*int
and proof =
private {p_lhs:term;p_rhs:term;p_rule:rule}
(** Proof smart constructors *)
val prefl:term -> proof
val pcongr: proof -> proof -> proof
val ptrans: proof -> proof -> proof
val psym: proof -> proof
val pax : (Ccalgo.term * Ccalgo.term) Ccalgo.Constrhash.t ->
Ccalgo.Constrhash.key -> proof
val psymax : (Ccalgo.term * Ccalgo.term) Ccalgo.Constrhash.t ->
Ccalgo.Constrhash.key -> proof
val pinject : proof -> pconstructor -> int -> int -> proof
(** Proof building functions *)
val equal_proof : Environ.env -> Evd.evar_map -> forest -> int -> int -> proof
val edge_proof : Environ.env -> Evd.evar_map -> forest -> (int*int)*equality -> proof
val path_proof : Environ.env -> Evd.evar_map -> forest -> int -> ((int*int)*equality) list -> proof
val congr_proof : Environ.env -> Evd.evar_map -> forest -> int -> int -> proof
val ind_proof : Environ.env -> Evd.evar_map -> forest -> int -> pa_constructor -> int -> pa_constructor -> proof
(** Main proof building function *)
val build_proof :
Environ.env -> Evd.evar_map -> forest ->
[ `Discr of int * pa_constructor * int * pa_constructor
| `Prove of int * int ] -> proof
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