{A : Type} {a00 a10 a01 a11 : A} {px0 : a00 = a10} {px1 : a01 = a11} {p0x : a00 = a01} {p1x : a10 = a11} : PathSquare px0 px1 p0x p1x <~> PathSquare p0x p1x px0 px1. Proof. srapply (equiv_adjointify tr tr). 1,2: by intros []. Defined.
Require Import Basics. Require Import Types.Paths Types.Prod. Require Import DPath. Section PathSquaresFromPaths. End PathSquaresFromPaths.