proposition: Lemma disjoint_map_1 : forall A B C (E : list (asn A B)) (F : list (asn A B)) (f1 : A -> A) (f2 : B -> B), disjoint (map f1 f2 E) F -> disjoint E F.
proof: Proof. unfold disjoint. intros. simpl_asnlist in *. trivial. Qed.
imports: Coq.FSets.FSets Coq.Lists.List Coq.Logic.Decidable Metalib.CoqFSetDecide Metalib.CoqListFacts Metalib.LibTactics Metalib.MetatheoryAtom Metalib.LibTactics