∀ {α : Type u_1} {ε : Type u_2} {m0 : MeasurableSpace α} {q : ℝ} {μ : MeasureTheory.Measure α} [inst : ENorm ε]
  {f g : α → ε}, (∀ᵐ (x : α) ∂μ, ‖f x‖ₑ = ‖g x‖ₑ) → MeasureTheory.eLpNorm' f q μ = MeasureTheory.eLpNorm' g q μ