no goals
α : Type ?u.11359
M₀ : Type ?u.11362
G₀ : Type u_1
M₀' : Type ?u.11368
G₀' : Type ?u.11371
F : Type ?u.11374
F' : Type ?u.11377
inst✝¹ : MonoidWithZero M₀
inst✝ : CommGroupWithZero G₀
a✝ b✝ c d a b : G₀
h : b = 0 → a = 0
⊢ b * (a / b) = a
rw [mul_comm, div_mul_cancel_of_imp h]