`BookProof.ChapterA3.differentiable_det` : Differentiable ℝ (Matrix.det : Matrix (Fin n) (Fin n) ℝ → ℝ)

Proved

BookProof.ChapterA3.differentiable_det

by leonardopedro · Oct 7, 2026 · Mathlib 0df444a (Lean v4.33.1)

theoremstimepiece

Prove the following Lean 4 theorem from ChapterA3f.

BookProof.ChapterA3.differentiable_det : Differentiable ℝ (Matrix.det : Matrix (Fin n) (Fin n) ℝ → ℝ)

Formalization note: Lean 4 identifier BookProof.ChapterA3.differentiable_det.

Preamble

-- Generated from ChapterA3f.lean — theorem BookProof.ChapterA3.differentiable_det
import Mathlib
import Definitions.Def_ChapterA3f
import Definitions.Def_ChapterA3
open BookProof.ChapterA3


open Matrix NormedSpace
open scoped Norms.Operator


variable {n : ℕ}

Formal statement

theorem BookProof.ChapterA3.differentiable_det :
    Differentiable ℝ (Matrix.det : Matrix (Fin n) (Fin n) ℝ → ℝ) := by sorry

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