diff options
Diffstat (limited to 'theories/ZArith/Zgcd_alt.v')
| -rw-r--r-- | theories/ZArith/Zgcd_alt.v | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/theories/ZArith/Zgcd_alt.v b/theories/ZArith/Zgcd_alt.v index aeddeb70c..fa059313f 100644 --- a/theories/ZArith/Zgcd_alt.v +++ b/theories/ZArith/Zgcd_alt.v @@ -105,8 +105,7 @@ Open Scope Z_scope. Lemma fibonacci_pos : forall n, 0 <= fibonacci n. Proof. - cut (forall N n, (n<N)%nat -> 0<=fibonacci n). - eauto. + enough (forall N n, (n<N)%nat -> 0<=fibonacci n) by eauto. induction N. inversion 1. intros. |