∀ {α : Type u_1} {β : Type u_2} {m : MeasurableSpace α} {μ : MeasureTheory.Measure α} [inst : NormedAddCommGroup β]
  {f : α → β} [inst_1 : Lattice β] [HasSolidNorm β] [AddLeftMono β],
  MeasureTheory.Integrable f μ → ∀ {ε : β}, 0 < ε → μ {a | ε < f a} < ⊤