Commit fa8a02f2 authored by Robbert Krebbers's avatar Robbert Krebbers

Permutation Proper instance for `omap` on lists.

parent 56fe186d
......@@ -3133,6 +3133,10 @@ Proof.
- apply IH. intros. eapply Hunique; rewrite ?elem_of_cons; eauto.
Qed.
Global Instance omap_Permutation {A B} (f : A option B) :
Proper (() ==> ()) (omap f).
Proof. induction 1; simpl; repeat case_match; econstructor; eauto. Qed.
Section bind.
Context {A B : Type} (f : A list B).
......
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