{A B C : Type} {x y : A} (p : x = y) (M : A -> B -> C) (z : B) : ap (fun a => (M a) z) p = ap10 (ap M p) z := match p with 1 => 1 end.
Require Import Basics.Overture Basics.PathGroupoids Basics.Decidable Require Import Types.Forall.