{A : Type} {a a' : A} (p : a = a') : DPath (fun x => Diamond a' x a x) p (diamond_v_sq a' a 1) (diamond_h_sq a a' 1). Proof. destruct p. apply diamond_symm. Defined.
Require Import Basics Types. Require Import Cubical.DPath Cubical.PathSquare. Require Import NullHomotopy. Require Import Extensions. Require Import Colimits.Pushout. Require Import Truncations.Core Truncations.Connectedness. Require Import Pointed.Core. Require Import WildCat. Require Import Spaces.Nat.Core.