diff options
Diffstat (limited to 'theories/NArith/Ndist.v')
| -rw-r--r-- | theories/NArith/Ndist.v | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/theories/NArith/Ndist.v b/theories/NArith/Ndist.v index 586c1114..22adc505 100644 --- a/theories/NArith/Ndist.v +++ b/theories/NArith/Ndist.v @@ -1,12 +1,10 @@ (************************************************************************) (* 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 1999-2010 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) (************************************************************************) -(*i $Id: Ndist.v 14641 2011-11-06 11:59:10Z herbelin $ i*) - Require Import Arith. Require Import Min. Require Import BinPos. @@ -303,7 +301,7 @@ Proof. cut (forall a'':N, Nxor (Npos p) a' = a'' -> Nbit a'' k = false). intros. apply H1. reflexivity. intro a''. case a''. intro. reflexivity. - intros. rewrite <- H1. rewrite (Nxor_semantics (Npos p) a' k). unfold xorf in |- *. + intros. rewrite <- H1. rewrite (Nxor_semantics (Npos p) a' k). rewrite (Nplength_zeros (Npos p) (Pplength p) (refl_equal (Nplength (Npos p))) k H0). @@ -335,4 +333,4 @@ Proof. intro. rewrite <- H. apply Nplength_ultra. rewrite Nxor_assoc. rewrite <- (Nxor_assoc a'' a'' a'). rewrite Nxor_nilpotent. rewrite Nxor_neutral_left. reflexivity. -Qed.
\ No newline at end of file +Qed. |