proposition: Lemma monic_algCpfactor x : algCpfactor x \is monic.
proof: Proof. by rewrite algCpfactorE rpredM ?rpredX ?monicXsubC. Qed.
imports: HB(structures) mathcomp(all_ssreflect all_fingroup all_algebra) mathcomp(all_solvable all_field) Abel(various)