diff options
Diffstat (limited to 'theories/Numbers/Natural/Abstract/NAdd.v')
| -rw-r--r-- | theories/Numbers/Natural/Abstract/NAdd.v | 4 |
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. |