proposition: Lemma FrobeniusW : [Frobenius G].
proof: Proof. by apply/existsP; exists H; apply: FrobeniusWcompl. Qed.
imports: mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat div) mathcomp(fintype bigop prime finset fingroup morphism) mathcomp(perm action quotient gproduct cyclic center) mathcomp(pgroup nilpotent sylow hall abelian)