def bits_xb
import bend-collections-laws-crypto@1.0.0.0/proofs/crypto/secp256k1/scalarpow.bend as Scalarpowimport Base
import bend-collections-laws-crypto@1.0.0.0/src/crypto/secp256k1/limbs.bend as L
161def bits_xb() -> {L.bits(xn()) == xb() : List<&2, Nat>}:
162 {==}