no goals
α : Type ?u.347165
M : Type u
N : Type v
G : Type w
H : Type x
A : Type y
B : Type z
R : Type u₁
S : Type u₂
inst✝ : Group M
f : Multiplicative ℤ →* M
n : Multiplicative ℤ
⊢ ↑f n = ↑f (↑Multiplicative.ofAdd 1) ^ ↑Multiplicative.toAdd n
rw [← zpowersHom_symm_apply, ← zpowersHom_apply, Equiv.apply_symm_apply]