proposition: Lemma prop4_incl A B C D E (f : A -> B -> C -> D -> E) : Proper (incl --> incl --> incl --> incl --> incl ==> impl) (fun R S T V W => Proper (R ==> S ==> T ==> V ==> W) f).
proof: Proof. intros R R' RR' S S' SS' T T' TT' V V' VV' W W' WW' hf x x' xx' y y' yy' z z' zz' a a' aa'. apply WW'. apply hf; fo. Qed.
imports: Coq(Setoid Basics Morphisms List Lia) CoLoR(LogicUtil)