∀ {E : Type u_3} [inst : NormedAddCommGroup E] [inst_1 : NormedSpace ℝ E] [CompleteSpace E] {f : ℝ → E} {a b : ℝ},
  IntervalIntegrable f MeasureTheory.volume a b →
    ∀ {s t : Set ℝ} [intervalIntegral.FTCFilter b (nhdsWithin b s) (nhdsWithin b t)],
      StronglyMeasurableAtFilter f (nhdsWithin b t) MeasureTheory.volume →
        ContinuousWithinAt f t b →
          autoParam (UniqueDiffWithinAt ℝ s b) intervalIntegral.derivWithin_integral_right._auto_1 →
            derivWithin (fun u => ∫ (x : ℝ) in a..u, f x) s b = f b