proposition: Lemma monotone3_compose (gf gf': rel3 T0 T1 T2 -> rel3 T0 T1 T2) (MON1: monotone3 gf) (MON2: monotone3 gf'): monotone3 (compose gf gf').
proof: Proof. red; intros. eapply MON1. apply IN. intros. eapply MON2. apply PR. apply LE. Qed.
imports: Program.Basics Paco(paconotation_internal paco_internal pacotac_internal)