g mon_unit = c * b. Proof. unfold g; apply ap. apply left_identity. Defined.
Require Import Classes.interfaces.abstract_algebra. Require Import Cubical.DPath Cubical.PathSquare. Require Import Pointed.Core Pointed.pSusp. Require Import Homotopy.HSpace.Core. Require Import Homotopy.Suspension. Require Import Homotopy.Join.Core.