`BookProof.GaussCoordCombo.pderiv_prod_eq_zero` {S : Finset (Fin d)} {W : Fin d → MvPolynomial (Fin d) ℂ} {i : Fin d} (h : ∀ j ∈ S, pderiv i (W j) = 0) : pderiv i (∏ j ∈ S, W j) =

Initializing...

`BookProof.GaussCoordCombo.pderiv_prod_eq_zero` {S : Finset (Fin d)} {W : Fin d → MvPolynomial (Fin d) ℂ} {i : Fin d} (h : ∀ j ∈ S, pderiv i (W j) = 0) : pderiv i (∏ j ∈ S, W j) = · Prove2Me