transport_arrow' {A : Type} {B C : A -> Type} {x1 x2 : A} (p : x1 = x2) (f : B x1 -> C x1) : transport (fun x => B x -> C x) p f = transport _ p o f o transport _ p^. Proof. destruct p; auto. Defined.
Require Import Basics.Overture Basics.PathGroupoids Basics.Decidable Require Import Types.Forall.