Field.limbs16: def of bend-collections-laws-crypto@1.0.0.0
Import: import bend-collections-laws-crypto@1.0.0.0/spec/crypto/secp256k1/field.bend as Field
Lines 77-87 of bend-collections-laws-crypto@1.0.0.0/spec/crypto/secp256k1/field.bend: https://jend.leeeet.dev/read.txt?path=bend-collections-laws-crypto@1.0.0.0/spec/crypto/secp256k1/field.bend&start_line=77&end_line=87

import Base
import bend-collections-laws-crypto@1.0.0.0/spec/lib/common.bend as C

# exactly 16 limbs, each below 2^16
def limbs16(+one: Nat, n: Nat, xs: List<&2, Nat>) -> Bool:
  match n xs:
    case 0n Nil{}:
      True{}
    case 0n x <> t:
      False{}
    case 1n+k Nil{}:
      False{}
    case 1n+k x <> t:
      Bool.and(Nat.is_lt(x, C.shift(16n, one)), limbs16(one, k, t))

Uses (6):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.and
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.is_lt
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/spec/lib/common.bend&name=shift