proposition: Lemma gpaco8_final clo r rg: (r \8/ paco8 gf rg) <8= gpaco8 clo r rg.
proof: Proof. intros. destruct PR. apply gpaco8_base, H. econstructor. apply rclo8_base. left. eapply paco8_mon_gen. apply H. - intros. eapply gf_mon. apply PR. intros. apply rclo8_base. apply PR0. - intros. left. apply PR. Qed.
imports: Program.Basics Paco(paco8 pacotac)