Bytes.app_nil: def of bend-collections-laws-crypto@1.0.0.0
Import: import bend-collections-laws-crypto@1.0.0.0/proofs/crypto/random/bytes.bend as Bytes
Lines 21-26 of bend-collections-laws-crypto@1.0.0.0/proofs/crypto/random/bytes.bend: https://jend.leeeet.dev/read.txt?path=bend-collections-laws-crypto@1.0.0.0/proofs/crypto/random/bytes.bend&start_line=21&end_line=26

import Base
import bend-collections-laws-crypto@1.0.0.0/spec/crypto/random.bend as SCR

def app_nil(+xs: List<&2, U32>) -> {SCR.append(xs, []) == xs : List<&2, U32>}:
  match xs:
    case Nil{}:
      {==}
    case Con{+x, +rest}:
      Equal.cong(List<&2, U32>, List<&2, U32>, l => Con{x, l}, SCR.append(rest, []), rest, app_nil(rest))

Uses (4):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Equal.cong
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/spec/crypto/random.bend&name=append