proposition: Lemma rGen s : prv s -> prv (AR Bot s).
proof: Proof. move => H. apply: (@modular_hilbert.rMP _ s) => //. apply: modular_hilbert.rAR_ind => //. do 2 drop. exact: rNec. Qed.
imports: mathcomp.ssreflect.ssreflect mathcomp(all_ssreflect) CompDecModal.libs(edone bcase fset base modular_hilbert) CompDecModal.CTL(CTL_def hilbert)