1 (* Copyright (C) 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 NotConvertible
28 (* proof engine status *)
29 val proof : ProofEngineTypes.proof option ref
30 val goal : ProofEngineTypes.goal option ref
32 (* start a new goal undoing part of the proof *)
33 val perforate : Cic.context -> Cic.term -> Cic.term -> unit
35 (* reduction tactics *)
36 val whd : Cic.term -> unit
37 val reduce : Cic.term -> unit
38 val simpl : Cic.term -> unit
39 val fold : Cic.term -> unit
40 val change : goal_input:Cic.term -> input:Cic.term -> unit
42 (* scratch area reduction tactics *)
43 val whd_in_scratch : Cic.term -> Cic.term -> Cic.term
44 val reduce_in_scratch : Cic.term -> Cic.term -> Cic.term
45 val simpl_in_scratch : Cic.term -> Cic.term -> Cic.term
47 (* "primitive" tactics *)
48 val apply : Cic.term -> unit
49 val intros : unit -> unit
50 val cut : Cic.term -> unit
51 val letin : Cic.term -> unit
52 val exact : Cic.term -> unit
53 val elim_intros_simpl : Cic.term -> unit
55 (* structural tactics *)
56 val clearbody : Cic.hypothesis -> unit
57 val clear : Cic.hypothesis -> unit
60 val elim_type : Cic.term -> unit
61 val ring : unit -> unit
62 val fourier : unit -> unit