proposition: Lemma gpaco1_step_gen clo r rg: gf (gpaco1 clo (rg \1/ r) (rg \1/ r)) <1= gpaco1 clo r rg.
proof: Proof. intros. econstructor. apply rclo1_base. left. pstep. eapply gf_mon. apply PR. intros. destruct PR0. eapply rclo1_mon. apply IN. intros. destruct PR0. - left. eapply paco1_mon. apply H. intros. destruct PR0; apply H0. - right. apply H. Qed.
imports: Program.Basics Paco(paco1 pacotac)