proposition: Fact in_qpoly_is_linear : linear in_qpoly.
proof: Proof. by move=> k p q; rewrite in_qpolyD in_qpolyZ. 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)