∀ {α : Type u_1} {ε : Type u_3} {mα : MeasurableSpace α} {f : α → ε} {s t : Set α} {μ : MeasureTheory.Measure α}
  [inst : TopologicalSpace ε] [inst_1 : ContinuousENorm ε],
  MeasureTheory.IntegrableOn f t μ → s ≤ᵐ[μ] t → MeasureTheory.IntegrableOn f s μ