English
For ContDiffOn f, the nth derivative of the inner composition x ↦ f (c x) behaves with c^n under appropriate conditions, showing homogeneous scaling.
Русский
Для ContDiffOn f n-я производная внутри композиции x ↦ f (c x) ведет себя как c^n, при подходящих условиях однородного масштабирования.
LaTeX
$$$\\operatorname{iteratedDerivWithin}_n (\\lambda x. f (c x)) s x = c^n \\cdot \\operatorname{iteratedDerivWithin}_n f s (c x)$$$
Lean4
theorem iteratedDeriv_const_add (hn : 0 < n) (c : F) : iteratedDeriv n (fun z => c + f z) x = iteratedDeriv n f x := by
simpa only [← iteratedDerivWithin_univ] using iteratedDerivWithin_const_add hn c