diff options
Diffstat (limited to 'theories/Arith/Div2.v')
-rw-r--r-- | theories/Arith/Div2.v | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/theories/Arith/Div2.v b/theories/Arith/Div2.v index 8cef48b69..a9d77c90d 100644 --- a/theories/Arith/Div2.v +++ b/theories/Arith/Div2.v @@ -110,7 +110,7 @@ Proof. split; split; auto with arith. inversion_clear 1. inversion H0. - (* n = (S (S n')) *) destruct (even_odd_double n) as ((Ev,Ev'),(Od,Od')). - split; split; simpl; rewrite ?double_S. + split; split; simpl div2; rewrite ?double_S. + inversion_clear 1. inversion_clear H0. auto. + injection 1. auto with arith. + inversion_clear 1. inversion_clear H0. auto. |