proposition: Lemma gpaco3_final clo r rg: (r \3/ paco3 gf rg) <3= gpaco3 clo r rg.
proof: Proof. intros. destruct PR. apply gpaco3_base, H. econstructor. apply rclo3_base. left. eapply paco3_mon_gen. apply H. - intros. eapply gf_mon. apply PR. intros. apply rclo3_base. apply PR0. - intros. left. apply PR. Qed.
imports: Program.Basics Paco(paco3 pacotac)