(************************************************************************)
(*         *   The Coq Proof Assistant / The Coq Development Team       *)
(*  v      *   INRIA, CNRS and contributors - Copyright 1999-2018       *)
(* <O___,, *       (see CREDITS file for the list of authors)           *)
(*   \VV/  **************************************************************)
(*    //   *    This file is distributed under the terms of the         *)
(*         *     GNU Lesser General Public License Version 2.1          *)
(*         *     (see LICENSE file for the text of the license)         *)
(************************************************************************)
(* (c) Copyright 2006-2016 Microsoft Corporation and Inria.                  *)
Reserved Notation " a -/ b " (at level 0).
Reserved Notation " a -// b " (at level 0).
Reserved Notation " a -/= b " (at level 0).
Reserved Notation " a -//= b " (at level 0).

Lemma test : forall a b c, a || b || c.