ProofCore.BMirror: def of lawful-bytes@0.1.1.0
Import: import lawful-bytes@0.1.1.0/proof_core.bend as ProofCore
Lines 219-221 of lawful-bytes@0.1.1.0/proof_core.bend: https://jend.leeeet.dev/read.txt?path=lawful-bytes@0.1.1.0/proof_core.bend&start_line=219&end_line=221

import Base
import lawful-bytes@0.1.1.0/defs.bend as D
import lawful-arrays@0.1.0.0/proof_tree.bend as P

# Every Bytes is BT(len, t) for some len and tree t.
def BMirror(-b: D.Bytes) -> Data:
  Sigma<&2, &2, U32, len => Sigma<&2, &2, P.Tree<U32>, t => {BT(len, t) == b : D.Bytes}>>

Uses (5):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Sigma
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=lawful-arrays@0.1.0.0/proof_tree.bend&name=Tree
  https://jend.leeeet.dev/definition.txt?path=lawful-bytes@0.1.1.0/defs.bend&name=Bytes
  https://jend.leeeet.dev/definition.txt?path=lawful-bytes@0.1.1.0/proof_core.bend&name=BT