fact: Definition irreducibleb := ((1 < size p) && [forall q : {poly_((size p).-1) R}, (Pdiv.Ring.rdvdp q p)%R ==> (sizep q <= 1)])%N.
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)