proposition: Lemma gpaco11_step_gen clo r rg: gf (gpaco11 clo (rg \11/ r) (rg \11/ r)) <11= gpaco11 clo r rg.
proof: Proof. intros. econstructor. apply rclo11_base. left. pstep. eapply gf_mon. apply PR. intros. destruct PR0. eapply rclo11_mon. apply IN. intros. destruct PR0. - left. eapply paco11_mon. apply H. intros. destruct PR0; apply H0. - right. apply H. Qed.
imports: Program.Basics Paco(paco11 pacotac)