`BookProof.MollifierL2.tendsto_translate_cc` {p : ℝ≥0∞} (hp0 : p ≠ 0) (hp : p ≠ ⊤) {g : E → F} (hg : Continuous g) (hcs : HasCompactSupport g) : Tendsto (fun a : E => eLpNorm (fun

Proved

BookProof.MollifierL2.tendsto_translate_cc

by leonardopedro · Oct 9, 2026 · Mathlib 0df444a (Lean v4.33.1)

theoremstimepiece

Prove the following Lean 4 theorem from ChapterMollifierL2.

BookProof.MollifierL2.tendsto_translate_cc {p : ℝ≥0∞} (hp0 : p ≠ 0) (hp : p ≠ ⊤) {g : E → F} (hg : Continuous g) (hcs : HasCompactSupport g) : Tendsto (fun a : E => eLpNorm (fun x => g (x - a) - g x) p μ) (𝓝 0) (𝓝 0)

Formalization note: Lean 4 identifier BookProof.MollifierL2.tendsto_translate_cc.

Preamble

-- Generated from ChapterMollifierL2.lean — theorem BookProof.MollifierL2.tendsto_translate_cc
import Mathlib
import Definitions.Def_ChapterMollifierL2
open BookProof.MollifierL2



open MeasureTheory Filter ENNReal Pointwise
open scoped NNReal Topology

noncomputable section

variable {E F : Type*} [NormedAddCommGroup E] [NormedSpace ℝ E] [FiniteDimensional ℝ E]
  [MeasurableSpace E] [BorelSpace E] {μ : Measure E} [μ.IsAddHaarMeasure]
  [NormedAddCommGroup F] [NormedSpace ℝ F]

Formal statement

theorem BookProof.MollifierL2.tendsto_translate_cc {p : ℝ≥0∞} (hp0 : p ≠ 0) (hp : p ≠ ⊤) {g : E → F}
    (hg : Continuous g) (hcs : HasCompactSupport g) :
    Tendsto (fun a : E => eLpNorm (fun x => g (x - a) - g x) p μ) (𝓝 0) (𝓝 0) := by sorry

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