∀ {α : Type u_1} {E : Type u_2} {m : MeasurableSpace α} {p : ENNReal} {μ : MeasureTheory.Measure α}
  [inst : NormedAddCommGroup E] {f : α → E},
  MeasureTheory.AEStronglyMeasurable f μ → (MeasureTheory.eLpNorm f p μ).toReal = MeasureTheory.lpNorm f p μ