proposition: Lemma gpaco10_step_gen clo r rg: gf (gpaco10 clo (rg \10/ r) (rg \10/ r)) <10= gpaco10 clo r rg.
proof: Proof. intros. econstructor. apply rclo10_base. left. pstep. eapply gf_mon. apply PR. intros. destruct PR0. eapply rclo10_mon. apply IN. intros. destruct PR0. - left. eapply paco10_mon. apply H. intros. destruct PR0; apply H0. - right. apply H. Qed.
imports: Program.Basics Paco(paco10 pacotac)