proposition: Lemma gpaco1_gen_rclo clo r rg: gpaco1 (rclo1 clo) r rg <1= gpaco1 clo r rg.
proof: Proof. intros. destruct PR. econstructor. apply rclo1_compose. eapply rclo1_mon. apply IN. intros. destruct PR; [|right; apply H]. left. eapply paco1_mon_gen; intros; [apply H| |apply PR]. eapply gf_mon, rclo1_compose. apply PR. Qed.
imports: Program.Basics Paco(paco1 pacotac)