proposition: Lemma AsAXR s t H : aAXR (s,t,H) \in As = [&& fAX (fAR s t)^- \in F & H \in Hs].
proof: Proof. by rewrite -AsX' -sf_AR AsAR. Qed.
imports: mathcomp.ssreflect.ssreflect mathcomp(all_ssreflect) CompDecModal.libs(edone bcase fset base sltype) CompDecModal.CTL(CTL_def gen_def)