Field.bytes_ok: def of bend-collections-laws-crypto@1.0.0.0
Import: import bend-collections-laws-crypto@1.0.0.0/spec/crypto/curve25519/field.bend as Field
Lines 41-55 of bend-collections-laws-crypto@1.0.0.0/spec/crypto/curve25519/field.bend: https://jend.leeeet.dev/read.txt?path=bend-collections-laws-crypto@1.0.0.0/spec/crypto/curve25519/field.bend&start_line=41&end_line=55

import Base

# n values, each below 2^8
def bytes_ok(n: Nat, xs: List<&2, U32>) -> Bool:
  match n:
    case 0n:
      match xs:
        case Nil{}:
          True{}
        case Con{x, xt}:
          False{}
    case 1n+m:
      match xs:
        case Nil{}:
          False{}
        case Con{x, xt}:
          Bool.and(Nat.is_lt(U32.to_nat(x), 256n), bytes_ok(m, xt))

Uses (7):
  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=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.to_nat