proposition: Lemma normalField_refl E : normalField E E.
proof: Proof. apply/forallP => /= u; apply/implyP; rewrite in_set. by move=> /andP[/andP[_ /fixedSpace_limg->]]. Qed.
imports: HB(structures) mathcomp(all_ssreflect all_fingroup all_algebra) mathcomp(all_solvable all_field) Abel(various char0)