(* Copyright (C) 2002, HELM Team.
 * 
 * This file is part of HELM, an Hypertextual, Electronic
 * Library of Mathematics, developed at the Computer Science
 * Department, University of Bologna, Italy.
 * 
 * HELM is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * HELM is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with HELM; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
 * MA  02111-1307, USA.
 * 
 * For details, see the HELM World-Wide-Web page,
 * http://cs.unibo.it/helm/.
 *)

val reflexivity_tac: ProofEngineTypes.tactic
val symmetry_tac: ProofEngineTypes.tactic
val transitivity_tac: term:Cic.term -> ProofEngineTypes.tactic

(*
val constructor_tac: n:int -> ProofEngineTypes.tactic
*)
val exists_tac: ProofEngineTypes.tactic
val split_tac: ProofEngineTypes.tactic
val left_tac: ProofEngineTypes.tactic
val right_tac: ProofEngineTypes.tactic

val assumption_tac: ProofEngineTypes.tactic

val generalize_tac: term:Cic.term -> ProofEngineTypes.tactic

val elim_type_tac: term:Cic.term -> ProofEngineTypes.tactic

val absurd_tac: term:Cic.term -> ProofEngineTypes.tactic
val contradiction_tac: ProofEngineTypes.tactic

val decompose_tac: clist:(Cic.term list) -> ProofEngineTypes.tactic

(*
val decide_equality_tac: ProofEngineTypes.tactic
val compare_tac: term1:Cic.term -> term2:Cic.term -> ProofEngineTypes.tactic
*)

val rewrite_tac: term:Cic.term -> ProofEngineTypes.tactic
val rewrite_simpl_tac: term:Cic.term -> ProofEngineTypes.tactic
val rewrite_back_tac: term:Cic.term -> ProofEngineTypes.tactic
val replace_tac: what:Cic.term -> with_what:Cic.term -> ProofEngineTypes.tactic