proposition: Lemma qpolyCN (a : A) : qpolyC h (- a) = -(qpolyC h a).
proof: Proof. apply: val_inj; rewrite /= raddfN //= raddfN. Qed.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat seq choice fintype tuple) mathcomp(bigop binomial finset finfun ssralg countalg finalg poly polydiv) mathcomp(perm fingroup matrix mxalgebra mxpoly vector countalg)