proposition: Lemma p_elt1 pi : pi.-elt (1 : gT).
proof: Proof. by rewrite /p_elt order1. Qed.
imports: mathcomp(ssreflect ssrbool ssrfun eqtype ssrnat seq div) mathcomp(fintype bigop finset prime fingroup morphism) mathcomp(gfunctor automorphism quotient action gproduct) mathcomp(cyclic)