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Theorems · Theorem · real analysis

iteratedDerivWithin_comp_two

∀ {𝕜 : Type u_1} [inst : NontriviallyNormedField 𝕜] {g f : 𝕜 → 𝕜} {s t : Set 𝕜} {x : 𝕜},
  ContDiffWithinAt 𝕜 2 g t (f x) →
    ContDiffWithinAt 𝕜 2 f s x →
      UniqueDiffOn 𝕜 t →
        UniqueDiffOn 𝕜 s →
          x ∈ s →
            Set.MapsTo f s t →
              iteratedDerivWithin 2 (g ∘ f) s x =
                iteratedDerivWithin 2 g t (f x) * derivWithin f s x ^ 2 +
                  derivWithin g t (f x) * iteratedDerivWithin 2 f s x
Defined in
Mathlib.Analysis.Calculus.IteratedDeriv.FaaDiBruno
Cited by
1 results in Mathlib
Foundations
Depth 197 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
NontriviallyNormedField

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