diff options
Diffstat (limited to 'theories/Bool/Zerob.v')
| -rw-r--r-- | theories/Bool/Zerob.v | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/theories/Bool/Zerob.v b/theories/Bool/Zerob.v index e67ba677..e8798d0d 100644 --- a/theories/Bool/Zerob.v +++ b/theories/Bool/Zerob.v @@ -1,17 +1,15 @@ (************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2011 *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2012 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) (************************************************************************) -(*i $Id: Zerob.v 14641 2011-11-06 11:59:10Z herbelin $ i*) - Require Import Arith. Require Import Bool. -Open Local Scope nat_scope. +Local Open Scope nat_scope. Definition zerob (n:nat) : bool := match n with @@ -39,4 +37,4 @@ Hint Resolve zerob_false_intro: bool. Lemma zerob_false_elim : forall n:nat, zerob n = false -> n <> 0. Proof. destruct n; [ inversion 1 | auto with bool ]. -Qed.
\ No newline at end of file +Qed. |