proposition: Lemma monotone6_union (gf gf': rel6 T0 T1 T2 T3 T4 T5 -> rel6 T0 T1 T2 T3 T4 T5) (MON1: monotone6 gf) (MON2: monotone6 gf'): monotone6 (gf \7/ 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)