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Diffstat (limited to 'theories/FSets/FMapAVL.v')
| -rw-r--r-- | theories/FSets/FMapAVL.v | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/theories/FSets/FMapAVL.v b/theories/FSets/FMapAVL.v index 6e4c4b26f..b7947cddd 100644 --- a/theories/FSets/FMapAVL.v +++ b/theories/FSets/FMapAVL.v @@ -1070,6 +1070,10 @@ Proof. Qed. Hint Resolve elements_sort. +Lemma elements_nodup : forall s : t elt, bst s -> NoDupA eqk (elements s). +Proof. + intros; apply Sort_NoDupA; auto. +Qed. (** * Fold *) @@ -1816,6 +1820,9 @@ Module IntMake (I:Int)(X: OrderedType) <: S with Module E := X. Lemma elements_3 : forall m, sort lt_key (elements m). Proof. intros m; exact (@Raw.elements_sort elt m.(this) m.(is_bst)). Qed. + Lemma elements_3w : forall m, NoDupA eq_key (elements m). + Proof. intros m; exact (@Raw.elements_nodup elt m.(this) m.(is_bst)). Qed. + Definition Equal cmp m m' := (forall k, In k m <-> In k m') /\ (forall k e e', MapsTo k e m -> MapsTo k e' m' -> cmp e e' = true). |