Theorems · Theorem · complex analysis

ContDiffAt.iteratedFDeriv_comp_perm

∀ {𝕜 : Type u_1} [inst : NontriviallyNormedField 𝕜] {E : Type u_2} [inst_1 : NormedAddCommGroup E]
  [inst_2 : NormedSpace 𝕜 E] {F : Type u_3} [inst_3 : NormedAddCommGroup F] [inst_4 : NormedSpace 𝕜 F] {f : E → F}
  {x : E},
  ContDiffAt 𝕜 ⊤ f x →
    ∀ {n : ℕ} (v : Fin n → E) (σ : Equiv.Perm (Fin n)), (iteratedFDeriv 𝕜 n f x) (v ∘ ⇑σ) = (iteratedFDeriv 𝕜 n f x) v

The n-th iterated derivative of an analytic function is symmetric.

Defined in

Mathlib.Analysis.Analytic.IteratedFDeriv

Cited by

0 results in Mathlib

Foundations

Depth 206 from the axioms · uses propext, Classical.choice, Quot.sound

Assumes

NontriviallyNormedFieldNormedAddCommGroupNormedSpaceNormedAddCommGroupNormedSpace