∀ {α : Type u_1} {m0 : MeasurableSpace α} {p : ENNReal} {μ : MeasureTheory.Measure α} (f : α → ℝ),
  (∀ᵐ (x : α) ∂μ, 0 ≤ f x) → MeasureTheory.eLpNorm (ENNReal.ofReal ∘ f) p μ = MeasureTheory.eLpNorm f p μ