Theorems · Theorem · real analysis

ContinuousLinearEquiv.comp_contDiff_iff

∀ {𝕜 : Type u_1} {E : Type u_2} {F : Type u_3} {G : Type u_4} [inst : NontriviallyNormedField 𝕜]
  [inst_1 : NormedAddCommGroup E] [inst_2 : NormedSpace 𝕜 E] [inst_3 : NormedAddCommGroup F] [inst_4 : NormedSpace 𝕜 F]
  [inst_5 : NormedAddCommGroup G] [inst_6 : NormedSpace 𝕜 G] {f : E → F} {n : WithTop ℕ∞} (e : F ≃L[𝕜] G),
  ContDiff 𝕜 n (⇑e ∘ f) ↔ ContDiff 𝕜 n f

Composition by continuous linear equivs on the left respects higher differentiability.

Defined in

Mathlib.Analysis.Calculus.ContDiff.Basic

Cited by

1 results in Mathlib

Foundations

Depth 195 from the axioms · uses propext, Classical.choice, Quot.sound

Assumes

NontriviallyNormedFieldNormedAddCommGroupNormedSpaceNormedAddCommGroupNormedSpaceNormedAddCommGroupNormedSpace