proposition: Lemma cpn8_compat: compatible8 gf cpn8.
proof: Proof. econstructor; [apply cpn8_mon|intros]. destruct PR; eapply gf_mon with (r:=clo r). - eapply (compat8_compat COM); apply CLO. - intros. econstructor; [apply COM|apply PR]. Qed.
imports: Program.Basics Paco(paco8 pacotac)