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(*  v      *   The Coq Proof Assistant  /  The Coq Development Team     *)
(* <O___,, *   INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016     *)
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(*    //   *      This file is distributed under the terms of the       *)
(*         *       GNU Lesser General Public License Version 2.1        *)
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(**** Tactics Tauto and Intuition ****)

(**** Tauto:
  Tactic for automating proof in Intuionnistic Propositional Calculus, based on
  the contraction-free LJT of Dickhoff ****)

(**** Intuition:
  Simplifications of goals, based on LJT calcul ****)

(* Fails because Tauto does not perform any Apply *)
Goal (forall A : Prop, A \/ ~ A) -> forall x y : nat, x = y \/ x <> y.
Proof.
   Fail tauto.