proposition: Lemma gpaco3_step_gen clo r rg: gf (gpaco3 clo (rg \3/ r) (rg \3/ r)) <3= gpaco3 clo r rg.
proof: Proof. intros. econstructor. apply rclo3_base. left. pstep. eapply gf_mon. apply PR. intros. destruct PR0. eapply rclo3_mon. apply IN. intros. destruct PR0. - left. eapply paco3_mon. apply H. intros. destruct PR0; apply H0. - right. apply H. Qed.
imports: Program.Basics Paco(paco3 pacotac)