proposition: Lemma qpoly_mulVp (p : {poly %/ h}) : p != 0%R -> (qpoly_inv p * p = 1)%R.
proof: Proof. by move=> pNZ; apply/qpoly_mulVz/coprimep_unit. Qed.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat seq choice fintype tuple) mathcomp(div bigop binomial finset finfun ssralg countalg finalg) mathcomp(poly polydiv qpoly perm fingroup falgebra fieldext finfield galois) mathcomp(finalg zmodp matrix vector)