norm_cast
a b✝ c : ℤθ
b : ℕ
h1 : (↑(unit ^ (3 * -↑b))).f % 3 = 1
h2 : (↑(unit ^ (3 * -↑b))).g % 3 = 0
h3 : (↑(unit ^ (3 * -↑b))).h % 3 = 0
p : Nat.succ b = b + 1
⊢ ↑(unit ^ (3 * -↑b) * unit ^ (-3)) = ↑(unit ^ (3 * -↑b)) * ↑(unit ^ (-3))
no goals