`BookProof.ChapterLegendrePolynomial.iterD_Xsq_mul` (k : ℕ) (f : ℝ[X]) : derivative^[k] (X ^ 2 * f) = X ^ 2 * derivative^[k] f + C (2 * (k : ℝ)) * X * derivative^[k-1] f + C ((k :

Initializing...

`BookProof.ChapterLegendrePolynomial.iterD_Xsq_mul` (k : ℕ) (f : ℝ[X]) : derivative^[k] (X ^ 2 * f) = X ^ 2 * derivative^[k] f + C (2 * (k : ℝ)) * X * derivative^[k-1] f + C ((k : · Prove2Me