proposition: Lemma coef_NPoly (p : {poly R}) i : (NPoly p)`_i = if i < n then p`_i else 0.
proof: Proof. by rewrite /= coef_poly. Qed.
imports: HB(structures) mathcomp.ssreflect.ssreflect mathcomp(ssrfun ssrbool eqtype ssrnat seq choice fintype tuple) mathcomp(bigop binomial finset finfun zmodp ssralg countalg finalg poly polydiv) mathcomp(perm fingroup) CoqEAL(hrel pos param refinements binnat boolF2 seqpoly poly_op trivial_seq poly_div boolF2)