1 (* Copyright (C) 2005, HELM Team.
3 * This file is part of HELM, an Hypertextual, Electronic
4 * Library of Mathematics, developed at the Computer Science
5 * Department, University of Bologna, Italy.
7 * HELM is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
12 * HELM is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with HELM; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
22 * For details, see the HELM World-Wide-Web page,
23 * http://cs.unibo.it/helm/.
28 type goal = Equality.goal_proof * Cic.metasenv * Cic.term
32 module PosEqSet : Set.S
33 with type elt = Utils.pos * Equality.equality
34 and type t = Equality_indexing.DT.PosEqSet.t
35 type t = Discrimination_tree.DiscriminationTreeIndexing(PosEqSet).t
39 val index : Index.t -> Equality.equality -> Index.t
40 val remove_index : Index.t -> Equality.equality -> Index.t
41 val in_index : Index.t -> Equality.equality -> bool
43 val init_index : unit -> unit
45 Cic.metasenv * Cic.context * CicUniv.universe_graph ->
48 (Subst.substitution * Equality.equality * bool) option
50 Cic.metasenv * Cic.context * CicUniv.universe_graph ->
53 (Subst.substitution * Equality.equality * bool) option
54 val superposition_left :
55 Cic.conjecture list * Cic.context * CicUniv.universe_graph ->
60 val superposition_right :
61 ?subterms_only:bool ->
63 'a * Cic.context * CicUniv.universe_graph ->
66 int * Equality.equality list
68 val demodulation_equality :
71 Cic.metasenv * Cic.context * CicUniv.universe_graph ->
73 Utils.equality_sign -> Equality.equality -> int * Equality.equality
74 val demodulation_goal :
75 Cic.metasenv * Cic.context * CicUniv.universe_graph ->
79 val demodulation_theorem :
81 Cic.metasenv * Cic.context * CicUniv.universe_graph ->
83 Cic.term * Index.key * Cic.metasenv ->
84 'a * (Cic.term * Index.key * Cic.metasenv)
87 Equality.equality -> string -> unit
90 val get_stats: unit -> string