proposition: Lemma compat2_wcompat clo (CMP: compatible2 clo): wcompatible2 clo.
proof: Proof. econstructor. apply CMP. intros. apply CMP in PR. eapply gf_mon. apply PR. intros. apply gpaco2_clo, PR0. Qed.
imports: Program.Basics Paco(paco2 pacotac)