Commit 17bc1af5 authored by Robbert Krebbers's avatar Robbert Krebbers
Browse files

Some utility lemmas about `dist` on `::`.

parent f115f003
......@@ -46,6 +46,13 @@ Proof. intros ????; by apply dist_option_Forall2, Forall2_last. Qed.
Global Instance resize_ne n :
NonExpansive2 (@resize A n) := _.
Lemma list_dist_cons_inv_l n x l k :
x :: l {n} k y k', x {n} y l {n} k' k = y :: k'.
Proof. apply Forall2_cons_inv_l. Qed.
Lemma list_dist_cons_inv_r n l k y :
l {n} y :: k x l', x {n} y l' {n} k l = x :: l'.
Proof. apply Forall2_cons_inv_r. Qed.
Definition list_ofe_mixin : OfeMixin (list A).
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