proposition: Lemma bin_of_nat_7 : forall n, 2 < n -> bin_of_nat 7 = BinNums.Npos (BinNums.xI (BinNums.xI (BinNums.xH))).
proof: Proof. by []. Qed.
imports: mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat seq choice) mathcomp(fintype tuple) BinPos BinNat PArith ssr_ext