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authorGravatar Stephane Glondu <steph@glondu.net>2012-01-12 16:02:20 +0100
committerGravatar Stephane Glondu <steph@glondu.net>2012-01-12 16:02:20 +0100
commit97fefe1fcca363a1317e066e7f4b99b9c1e9987b (patch)
tree97ec6b7d831cc5fb66328b0c63a11db1cbb2f158 /theories/NArith/Ndist.v
parent300293c119981054c95182a90c829058530a6b6f (diff)
Imported Upstream version 8.4~betaupstream/8.4_beta
Diffstat (limited to 'theories/NArith/Ndist.v')
-rw-r--r--theories/NArith/Ndist.v8
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.