proposition: Lemma upaco0_mon_gen (gf gf': rel0 -> rel0) r r' (REL: upaco0 gf r) (LEgf: gf <1= gf') (LEr: r <0= r'): upaco0 gf' r'.
proof: Proof. destruct REL. - left. eapply paco0_mon_gen; [apply H | apply LEgf | apply LEr]. - right. apply LEr, H. Qed.
imports: Program.Basics Paco(paconotation_internal paco_internal pacotac_internal)