proposition: Lemma upaco4_mon_gen (gf gf': rel4 T0 T1 T2 T3 -> rel4 T0 T1 T2 T3) r r' x0 x1 x2 x3 (REL: upaco4 gf r x0 x1 x2 x3) (LEgf: gf <5= gf') (LEr: r <4= r'): upaco4 gf' r' x0 x1 x2 x3.
proof: Proof. destruct REL. - left. eapply paco4_mon_gen; [apply H | apply LEgf | apply LEr]. - right. apply LEr, H. Qed.
imports: Program.Basics Paco(paconotation_internal paco_internal pacotac_internal)