intro x
case hC
F V : Type
inst✝ : Field F
⊢ ∀ (x : F), ((↑(optionEquivRight F V)).comp ((to_MvPolynomial_Option V).comp Polynomial.C)) x = (C.comp Polynomial.C) x
case hC
F V : Type
inst✝ : Field F
x : F
⊢ ((↑(optionEquivRight F V)).comp ((to_MvPolynomial_Option V).comp Polynomial.C)) x = (C.comp Polynomial.C) x