apply setIntegral_congr_ae measurableSet_Ioi
𝕂 : Type u_1
inst✝ : _root_.RCLike 𝕂
Ψ : ℝ → ℝ
ε : ℝ
εpos : ε > 0
s : ℂ
⊢ ∫ (x : ℝ) in Ioi 0, (fun x => ↑(Ψ (x ^ (1 / ε)) / ε)) x * ↑x ^ (s - 1) =
    ∫ (x : ℝ) in Ioi 0, (|1 / ε| * x ^ (1 / ε - 1)) • (↑(Ψ (x ^ (1 / ε))) * ↑(x ^ (1 / ε)) ^ (↑ε * s - 1))
𝕂 : Type u_1
inst✝ : _root_.RCLike 𝕂
Ψ : ℝ → ℝ
ε : ℝ
εpos : ε > 0
s : ℂ
⊢ ∀ᵐ (x : ℝ),
    x ∈ Ioi 0 →
      (fun x => ↑(Ψ (x ^ (1 / ε)) / ε)) x * ↑x ^ (s - 1) =
        (|1 / ε| * x ^ (1 / ε - 1)) • (↑(Ψ (x ^ (1 / ε))) * ↑(x ^ (1 / ε)) ^ (↑ε * s - 1))