equiv_join_sym' (A B : Type) : Join A B <~> Join B A. Proof. rapply (opyon_equiv_0gpd (A:=Type)). apply joinrecdata_fun_sym. 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.