proposition: Lemma Dade_id1 : {in 'CF(L, A) & 1%g |: A, forall alpha a, alpha^\tau a = alpha a}.
proof: Proof. move=> alpha a Aalpha; case/setU1P=> [-> |]; last exact: Dade_id. by rewrite Dade1 (cfun_on0 Aalpha). Qed.
imports: HB(structures) mathcomp.ssreflect.ssreflect mathcomp(ssrbool ssrfun eqtype ssrnat seq path div choice) mathcomp(fintype tuple finfun bigop prime ssralg poly finset center) mathcomp(fingroup morphism perm automorphism quotient action zmodp) mathcomp(gfunctor gproduct cyclic pgroup frobenius ssrnum) mathcomp(matrix mxalgebra mxrepresentation vector algC classfun character) mathcomp(inertia vcharacter) odd_order(PFsection1)