proposition: Lemma separable_super (k K : {subfield L}) : (k <= K)%VS -> separable K k.
proof: Proof. by move=> /separableSr->//; rewrite separable_refl. Qed.
imports: HB(structures) mathcomp(all_ssreflect all_fingroup all_algebra) mathcomp(all_solvable all_field) Abel(various char0)