∀ {α : Type u_1} {E : Type u_2} {m : MeasurableSpace α} {p : ENNReal} {μ : MeasureTheory.Measure α}
  [inst : NormedAddCommGroup E] {f g : α → E},
  MeasureTheory.MemLp g p μ →
    1 ≤ p → MeasureTheory.lpNorm f p μ ≤ MeasureTheory.lpNorm g p μ + MeasureTheory.lpNorm (f - g) p μ