1 (* Copyright (C) 2000-2002, 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/.
26 exception Bad_pattern of string Lazy.t
28 (* Returns the first meta whose number is above the *)
29 (* number of the higher meta. *)
30 val new_meta_of_proof : proof:ProofEngineTypes.proof -> int
32 val subst_meta_in_proof :
33 ProofEngineTypes.proof ->
34 int -> Cic.term -> Cic.metasenv ->
35 ProofEngineTypes.proof * Cic.metasenv
36 val subst_meta_and_metasenv_in_proof :
37 ProofEngineTypes.proof ->
38 int -> Cic.substitution -> Cic.metasenv ->
39 ProofEngineTypes.proof * Cic.metasenv
41 (* returns the list of goals that are in newmetasenv and were not in
43 val compare_metasenvs :
44 oldmetasenv:Cic.metasenv -> newmetasenv:Cic.metasenv -> int list
48 * A pattern is a Cic term in which Cic.Implicit terms annotated with `Hole
51 (** create a pattern from a term and a list of subterms.
52 * the pattern is granted to have a ? for every subterm that has no selected
54 * @param equality equality function used while walking the term. Defaults to
55 * physical equality (==) *)
57 ?equality:(Cic.term -> Cic.term -> bool) -> term:Cic.term -> Cic.term list ->
61 (** select metasenv conjecture pattern
62 * select all subterms of [conjecture] matching [pattern].
63 * It returns the set of matched terms (that can be compared using physical
64 * equality to the subterms of [conjecture]) together with their contexts.
65 * The representation of the set mimics the conjecture type (but for the id):
66 * a list of (possibly removed) hypothesis (without their names) together with
67 * the list of its matched subterms (and their contexts) + the list of matched
68 * subterms of the conclusion with their context. Note: in the result the list
69 * of hypotheses * has an entry for each entry in the context and in the same
70 * order. Of course the list of terms (with their context) associated to one
71 * hypothesis may be empty.
76 metasenv:Cic.metasenv ->
77 subst:Cic.substitution ->
78 ugraph:CicUniv.universe_graph ->
79 conjecture:Cic.conjecture ->
80 pattern:ProofEngineTypes.lazy_pattern ->
81 Cic.substitution * Cic.metasenv * CicUniv.universe_graph *
82 [ `Decl of (Cic.context * Cic.term) list
83 | `Def of (Cic.context * Cic.term) list * (Cic.context * Cic.term) list
85 (Cic.context * Cic.term) list
87 (** locate_in_term equality what where context
88 * [what] must match a subterm of [where] according to [equality]
89 * It returns the matched terms together with their contexts in [where]
90 * [equality] defaults to physical equality
91 * [context] must be the context of [where]
94 ?equality:(Cic.context -> Cic.term -> Cic.term -> bool) ->
95 Cic.term -> where:Cic.term -> Cic.context -> (Cic.context * Cic.term) list
97 (** locate_in_conjecture equality what where context
98 * [what] must match a subterm of [where] according to [equality]
99 * It returns the matched terms together with their contexts in [where]
100 * [equality] defaults to physical equality
101 * [context] must be the context of [where]
103 val locate_in_conjecture:
104 ?equality:(Cic.context -> Cic.term -> Cic.term -> bool) ->
105 Cic.term -> Cic.conjecture -> (Cic.context * Cic.term) list
107 (* returns the index and the type of a premise in a context *)
108 val lookup_type: Cic.metasenv -> Cic.context -> string -> int * Cic.term
110 (* orders a metasenv w.r.t. dependency among metas *)
111 val sort_metasenv: Cic.metasenv -> Cic.metasenv
113 (* finds an hypothesis by name in the context *)
114 val find_hyp: string -> Cic.context -> Cic.term * Cic.term
116 (* sort pattern hypotheses from the smallest to the highest Rel *)
117 val sort_pattern_hyps:
118 Cic.context -> ProofEngineTypes.lazy_pattern -> ProofEngineTypes.lazy_pattern
121 (* FG: some helper functions ************************************************)
123 val get_name: Cic.context -> int -> string option
125 val get_rel: Cic.context -> string -> Cic.term option
127 (* split_with_whd (c, t) takes a type t typed in the context c and returns
128 [(c_0, t_0); (c_1, t_1); ...; (c_n, t_n)], n where t_0 is the conclusion of
129 t and t_i is the premise of t accessed by Rel i in t_0.
130 Performes a whd on the conclusion before giving up.
131 Each t_i is returned with a context c_i in wich it is typed
132 split_with_normalize (c, t) normalizes t before operating the split
135 val split_with_whd: Cic.context * Cic.term ->
136 (Cic.context * Cic.term) list * int
137 val split_with_normalize: Cic.context * Cic.term ->
138 (Cic.context * Cic.term) list * int