PROOF.b64.dual: def of bend-osdev-cipher-core@0.1.0.0
Import: import bend-osdev-cipher-core@0.1.0.0/PROOF.bend as PROOF
Lines 180-181 of bend-osdev-cipher-core@0.1.0.0/PROOF.bend: https://jend.leeeet.dev/read.txt?path=bend-osdev-cipher-core@0.1.0.0/PROOF.bend&start_line=180&end_line=181

import Base
import bend-osdev-bytes@0.1.1.0/bytes.bend as B
import bend-osdev-bytes@0.1.1.0/LAWS.bend as BL
import bend-osdev-cipher-core@0.1.0.0/cipher_core.bend as L

def b64.dual(+o: B.Octets, +bl: L.LcBlock64, em: {L.LcBlock64.of_octets(o) == Some{bl} : Maybe<&2, L.LcBlock64>}) -> {L.LcBlock64.to_octets(bl) == o : B.Octets}:
  Equal.trans(B.Octets, L.LcBlock64.to_octets(bl), B.Octets.of_list(B.Octets.to_list(o)), o, b64.dualL(B.Octets.to_list(o), bl)(em), BL.octets_of_to(o))

Uses (10):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Equal.trans
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bytes@0.1.1.1/LAWS.bend&name=octets_of_to
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bytes@0.1.1.1/bytes.bend&name=Octets
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bytes@0.1.1.1/bytes.bend&name=Octets.of_list
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bytes@0.1.1.1/bytes.bend&name=Octets.to_list
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-cipher-core@0.1.0.0/PROOF.bend&name=b64.dualL
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-cipher-core@0.1.0.0/cipher_core.bend&name=LcBlock64
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-cipher-core@0.1.0.0/cipher_core.bend&name=LcBlock64.of_octets
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-cipher-core@0.1.0.0/cipher_core.bend&name=LcBlock64.to_octets