def np_sum

bend-collections-laws-crypto@1.0.0.0 · proofs/crypto/secp256k1/consts.bend:227

import Base
import bend-collections-laws-crypto@1.0.0.0/spec/lib/common.bend as C
import bend-collections-laws-crypto@1.0.0.0/spec/crypto/secp256k1/field.bend as FS
import bend-collections-laws-crypto@1.0.0.0/proofs/lib/nat.bend as N

227def np_sum(+one: Nat, +h1: {one == 1n : Nat}) -> {Nat.add(Nat.add(FS.cn(one), 1n), np(one)) == C.shift(256n, one) : Nat}:
228  N.sub_add(C.shift(256n, one), Nat.add(FS.cn(one), 1n), cn1_le(one, h1))