∀ {α : Type u_1} {ε' : Type u_4} {mα : MeasurableSpace α} {s : Set α} {μ : MeasureTheory.Measure α}
  [inst : TopologicalSpace ε'] [inst_1 : ESeminormedAddMonoid ε'] {f : α → ε'},
  MeasureTheory.IntegrableOn f s μ → MeasurableSet s → MeasureTheory.Integrable (s.indicator f) μ