proposition: Lemma gpaco7_step_gen clo r rg: gf (gpaco7 clo (rg \7/ r) (rg \7/ r)) <7= gpaco7 clo r rg.
proof: Proof. intros. econstructor. apply rclo7_base. left. pstep. eapply gf_mon. apply PR. intros. destruct PR0. eapply rclo7_mon. apply IN. intros. destruct PR0. - left. eapply paco7_mon. apply H. intros. destruct PR0; apply H0. - right. apply H. Qed.
imports: Program.Basics Paco(paco7 pacotac)