diff options
Diffstat (limited to 'theories/Sorting/Mergesort.v')
| -rw-r--r-- | theories/Sorting/Mergesort.v | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/theories/Sorting/Mergesort.v b/theories/Sorting/Mergesort.v index 7124cd536..695291b8c 100644 --- a/theories/Sorting/Mergesort.v +++ b/theories/Sorting/Mergesort.v @@ -131,7 +131,7 @@ Theorem Sorted_merge : forall l1 l2, Sorted l1 -> Sorted l2 -> Sorted (merge l1 l2). Proof. induction l1; induction l2; intros; simpl; auto. - destruct (a <=? a0) as ()_eqn:Heq1. + destruct (a <=? a0) eqn:Heq1. invert H. simpl. constructor; trivial; rewrite Heq1; constructor. assert (Sorted (merge (b::l) (a0::l2))) by (apply IHl1; auto). |