proposition: Lemma AUlE C : C \in AUl -> fulfillsAU S T s t C.
proof: Proof. rewrite !inE; bcase. Qed.
imports: mathcomp.ssreflect.ssreflect mathcomp(all_ssreflect) CompDecModal.libs(edone bcase fset base sltype) CompDecModal.CTL(CTL_def dags)