∀ {A : Type u_1} {G : Type u_2} {V : Type u_3} {W : Type u_4} [inst : CommSemiring A] [inst_1 : Monoid G]
  [inst_2 : AddCommMonoid V] [inst_3 : AddCommMonoid W] [inst_4 : Module A V] [inst_5 : Module A W]
  (ρ : Representation A G V) (σ : Representation A G W),
  (Representation.TensorProduct.comm σ ρ).symm = Representation.TensorProduct.comm ρ σ