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authorGravatar Stephane Glondu <steph@glondu.net>2009-02-01 00:54:40 +0100
committerGravatar Stephane Glondu <steph@glondu.net>2009-02-01 00:54:40 +0100
commitcfbfe13f5b515ae2e3c6cdd97e2ccee03bc26e56 (patch)
treeb7832bd5d412a5a5d69cb36ae2ded62c71124c22 /theories/Numbers/Natural/Abstract/NAdd.v
parent113b703a695acbe31ac6dd6a8c4aa94f6fda7545 (diff)
Imported Upstream version 8.2~rc2+dfsgupstream/8.2.rc2+dfsg
Diffstat (limited to 'theories/Numbers/Natural/Abstract/NAdd.v')
-rw-r--r--theories/Numbers/Natural/Abstract/NAdd.v4
1 files changed, 2 insertions, 2 deletions
diff --git a/theories/Numbers/Natural/Abstract/NAdd.v b/theories/Numbers/Natural/Abstract/NAdd.v
index f58b87d8..91ae5b70 100644
--- a/theories/Numbers/Natural/Abstract/NAdd.v
+++ b/theories/Numbers/Natural/Abstract/NAdd.v
@@ -8,7 +8,7 @@
(* Evgeny Makarov, INRIA, 2007 *)
(************************************************************************)
-(*i $Id: NAdd.v 11040 2008-06-03 00:04:16Z letouzey $ i*)
+(*i $Id: NAdd.v 11674 2008-12-12 19:48:40Z letouzey $ i*)
Require Export NBase.
@@ -103,7 +103,7 @@ Qed.
Theorem succ_add_discr : forall n m : N, m ~= S (n + m).
Proof.
intro n; induct m.
-apply neq_symm. apply neq_succ_0.
+apply neq_sym. apply neq_succ_0.
intros m IH H. apply succ_inj in H. rewrite add_succ_r in H.
unfold not in IH; now apply IH.
Qed.