rw [div_eq_mul_inv, ofReal_mul, abs_of_pos (one_div_pos.mpr εpos)]
case h
𝕂 : Type u_1
inst✝ : _root_.RCLike 𝕂
Ψ : ℝ → ℝ
ε : ℝ
εpos : ε > 0
s : ℂ
x : ℝ
hx : x ∈ Ioi 0
log_x_real : (↑x).log.im = 0
⊢ ↑(Ψ (x ^ (1 / ε)) / ε) * ↑x ^ (s - 1) =
    (|1 / ε| * x ^ (1 / ε - 1)) • (↑(Ψ (x ^ (1 / ε))) * ↑(x ^ (1 / ε)) ^ (↑ε * s - 1))
case h
𝕂 : Type u_1
inst✝ : _root_.RCLike 𝕂
Ψ : ℝ → ℝ
ε : ℝ
εpos : ε > 0
s : ℂ
x : ℝ
hx : x ∈ Ioi 0
log_x_real : (↑x).log.im = 0
⊢ ↑(Ψ (x ^ (1 / ε))) * ↑ε⁻¹ * ↑x ^ (s - 1) =
    (1 / ε * x ^ (1 / ε - 1)) • (↑(Ψ (x ^ (1 / ε))) * ↑(x ^ (1 / ε)) ^ (↑ε * s - 1))