proposition: Lemma compat8_wcompat clo (CMP: compatible8 clo): wcompatible8 clo.
proof: Proof. econstructor. apply CMP. intros. apply CMP in PR. eapply gf_mon. apply PR. intros. apply gpaco8_clo, PR0. Qed.
imports: Program.Basics Paco(paco8 pacotac)