fact: Definition ediv p q : {poly F} * {poly F} := if q == 0 then (0, p) else ediv_rec q (size p) 0 p.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat div seq) mathcomp(path choice fintype tuple finset ssralg) mathcomp(matrix poly) mathcomp(bigop polydiv) CoqEAL(stronglydiscrete dvdring)