proposition: Lemma gpaco14_unfold clo r rg: gpaco14 clo r rg <14= rclo14 clo (gf (gupaco14 clo (rg \14/ r)) \14/ r).
proof: Proof. intros. destruct PR. eapply rclo14_mon. apply IN. intros. destruct PR; cycle 1. right; apply H. left. _punfold H; [|apply gpaco14_def_mon]. eapply gf_mon. apply H. intros. econstructor. eapply rclo14_mon. apply PR. intros. destruct PR0; cycle 1. right. apply H0. left. eapply paco14_mon. apply H0. intros. left. apply PR0. Qed.
imports: Program.Basics Paco(paco14 pacotac)