proposition: Lemma combine_repeat_eq_map: forall {A B} (a: A) (l: list B), combine (repeat a (length l)) l = map (fun b : B => (a, b)) l.
proof: Proof. intros. induction l; simpl; auto. rewrite IHl. reflexivity. Qed.
imports: Coq.Lists.List Coq.micromega.Lia Coq.Sorting.Permutation Coq.ZArith.ZArith_base Coq.ZArith.Zcomplements Coq.Logic.FunctionalExtensionality CertiGraph.lib.Coqlib CertiGraph.lib.EquivDec_ext VST.zlist.sublist VST.zlist.list_solver