diff options
Diffstat (limited to 'plugins/ring/LegacyArithRing.v')
| -rw-r--r-- | plugins/ring/LegacyArithRing.v | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/plugins/ring/LegacyArithRing.v b/plugins/ring/LegacyArithRing.v index 2de16bc1..089dec02 100644 --- a/plugins/ring/LegacyArithRing.v +++ b/plugins/ring/LegacyArithRing.v @@ -1,13 +1,11 @@ (************************************************************************) (* 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 *) (************************************************************************) -(* $Id: LegacyArithRing.v 14641 2011-11-06 11:59:10Z herbelin $ *) - (* Instantiation of the Ring tactic for the naturals of Arith $*) Require Import Bool. @@ -15,9 +13,9 @@ Require Export LegacyRing. Require Export Arith. Require Import Eqdep_dec. -Open Local Scope nat_scope. +Local Open Scope nat_scope. -Unboxed Fixpoint nateq (n m:nat) {struct m} : bool := +Fixpoint nateq (n m:nat) {struct m} : bool := match n, m with | O, O => true | S n', S m' => nateq n' m' @@ -77,14 +75,14 @@ Ltac rewrite_S_to_plus := (**) (**) rewrite_S_to_plus_term X1 with t2 := rewrite_S_to_plus_term X2 in - change (t1 = t2) in |- * + change (t1 = t2) | |- (?X1 = ?X2) => try let t1 := (**) (**) rewrite_S_to_plus_term X1 with t2 := rewrite_S_to_plus_term X2 in - change (t1 = t2) in |- * + change (t1 = t2) end. Ltac ring_nat := rewrite_S_to_plus; ring. |