∀ {α : Type u_1} {E : Type u_2} {m : MeasurableSpace α} {μ : MeasureTheory.Measure α} {p : ENNReal}
  [inst : NormedAddCommGroup E] [inst_1 : Lattice E] [HasSolidNorm E] [IsOrderedAddMonoid E] {f g : α → E},
  MeasureTheory.MemLp f p μ → MeasureTheory.MemLp g p μ → MeasureTheory.MemLp (f ⊔ g) p μ