`BookProof.ChapterSolidHarmonic.contDiff_angular` (u v : E) (μ : ℕ) : ContDiff ℝ 2 (angular u v μ)

Proved

BookProof.ChapterSolidHarmonic.contDiff_angular

by leonardopedro · Oct 10, 2026 · Mathlib 0df444a (Lean v4.33.1)

theoremstimepiece

Prove the following Lean 4 theorem from ChapterSolidHarmonic.

BookProof.ChapterSolidHarmonic.contDiff_angular (u v : E) (μ : ℕ) : ContDiff ℝ 2 (angular u v μ)

Formalization note: Lean 4 identifier BookProof.ChapterSolidHarmonic.contDiff_angular.

Preamble

-- Generated from ChapterSolidHarmonic.lean — theorem BookProof.ChapterSolidHarmonic.contDiff_angular
import Definitions.Def_ChapterRadialLaplacian
import Definitions.Def_ChapterLaplacianProduct
import Definitions.Def_ChapterSolidHarmonicTools
import Definitions.Def_ChapterLegendrePolynomial
import Mathlib
import Definitions.Def_ChapterSolidHarmonic
open BookProof.ChapterSolidHarmonic



open Laplacian InnerProductSpace Polynomial
open BookProof.ChapterRadialLaplacian BookProof.ChapterLaplacianProduct
open BookProof.ChapterSolidHarmonicTools BookProof.ChapterLegendrePolynomial
open scoped RealInnerProductSpace

variable {E : Type*} [NormedAddCommGroup E] [InnerProductSpace ℝ E] [FiniteDimensional ℝ E]

Formal statement

theorem BookProof.ChapterSolidHarmonic.contDiff_angular (u v : E) (μ : ℕ) : ContDiff ℝ 2 (angular u v μ) := by sorry

View graph