proposition: Lemma monotone9_union (gf gf': rel9 T0 T1 T2 T3 T4 T5 T6 T7 T8 -> rel9 T0 T1 T2 T3 T4 T5 T6 T7 T8) (MON1: monotone9 gf) (MON2: monotone9 gf'): monotone9 (gf \10/ gf').
proof: Proof. red; intros. destruct IN. - left. eapply MON1. apply H. apply LE. - right. eapply MON2. apply H. apply LE. Qed.
imports: Program.Basics Paco(paconotation_internal paco_internal pacotac_internal)