proposition: Lemma Frobenius_aut_nat n : (n%:R)^f = n%:R.
proof: Proof. by rewrite Frobenius_autMn Frobenius_aut1. Qed.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat div seq) mathcomp(choice fintype finfun bigop prime binomial)