proposition: Lemma AsAXU s t H : aAXU (s,t,H) \in As = [&& fAX (fAU s t)^+ \in F & H \in Hs].
proof: Proof. by rewrite -AsX -sf_AU AsAU. Qed.
imports: mathcomp.ssreflect.ssreflect mathcomp(all_ssreflect) CompDecModal.libs(edone bcase fset base sltype) CompDecModal.CTL(CTL_def gen_def)