proposition: Lemma card_qpoly (R : finRingType) (h : {poly R}): #|{poly %/ h}| = #|R| ^ (size (mk_monic h)).-1.
proof: Proof. by rewrite card_npoly. 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)