English
The iterated derivative within s equals the iterated Fréchet derivative within s, expressed as a composition with the appropriate equivalence.
Русский
Итеративная производная внутри s равна итеративной Фрéше-производной внутри s, представленная через соответствующее эквивалентное отображение.
LaTeX
$$$ iteratedDerivWithin n f s = (iteratedFDerivWithin 𝕜 n f s x : (Fin n → 𝕜) → F) fun _ : Fin n => 1 $$$
Lean4
theorem iteratedDerivWithin_univ : iteratedDerivWithin n f univ = iteratedDeriv n f :=
by
ext x
rw [iteratedDerivWithin, iteratedDeriv, iteratedFDerivWithin_univ]