proposition: Lemma lcn_sub n G : 'L_n(G) \subset G.
proof: Proof. exact/char_sub/lcn_char. Qed.
imports: mathcomp(ssreflect ssrbool ssrfun eqtype ssrnat seq path) mathcomp(fintype div bigop prime finset fingroup morphism) mathcomp(automorphism quotient commutator gproduct) mathcomp(gfunctor center gseries cyclic)