diff options
Diffstat (limited to 'theories/Sets/Multiset.v')
| -rw-r--r-- | theories/Sets/Multiset.v | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/theories/Sets/Multiset.v b/theories/Sets/Multiset.v index a50140628..a79ddead2 100644 --- a/theories/Sets/Multiset.v +++ b/theories/Sets/Multiset.v @@ -11,6 +11,7 @@ (* G. Huet 1-9-95 *) Require Import Permut Setoid. +Require Plus. (* comm. and ass. of plus *) Set Implicit Arguments. @@ -69,9 +70,6 @@ Section multiset_defs. unfold meq; unfold munion; simpl; auto. Qed. - - Require Plus. (* comm. and ass. of plus *) - Lemma munion_comm : forall x y:multiset, meq (munion x y) (munion y x). Proof. unfold meq; unfold multiplicity; unfold munion. |