proposition: Lemma gpaco11_gen_rclo clo r rg: gpaco11 (rclo11 clo) r rg <11= gpaco11 clo r rg.
proof: Proof. intros. destruct PR. econstructor. apply rclo11_compose. eapply rclo11_mon. apply IN. intros. destruct PR; [|right; apply H]. left. eapply paco11_mon_gen; intros; [apply H| |apply PR]. eapply gf_mon, rclo11_compose. apply PR. Qed.
imports: Program.Basics Paco(paco11 pacotac)