∀ {ε : Type u_3} [inst : TopologicalSpace ε] [inst_1 : ENormedAddMonoid ε] [TopologicalSpace.PseudoMetrizableSpace ε]
  {f : ℝ → ε} {a b : ℝ} {μ : MeasureTheory.Measure ℝ} [MeasureTheory.NoAtoms μ],
  autoParam (‖f (min a b)‖ₑ ≠ ⊤) intervalIntegrable_iff'._auto_1 →
    (IntervalIntegrable f μ a b ↔ MeasureTheory.IntegrableOn f (Set.uIcc a b) μ)