proposition: Lemma cfRepr_prod n1 n2 (rG1 : reprG n1) (rG2 : reprG n2) : cfRepr rG1 * cfRepr rG2 = cfRepr (prod_repr rG1 rG2).
proof: Proof. by apply/cfun_inP=> x Gx; rewrite !cfunE /= Gx mxtrace_prod. Qed.
imports: HB(structures) mathcomp(ssreflect ssrbool ssrfun eqtype choice ssrnat seq) mathcomp(path div fintype tuple finfun bigop prime order) mathcomp(ssralg poly finset gproduct fingroup morphism) mathcomp(perm automorphism quotient finalg action zmodp) mathcomp(commutator cyclic center pgroup nilpotent sylow) mathcomp(abelian matrix mxalgebra mxpoly mxrepresentation) mathcomp(vector ssrnum algC classfun archimedean)