ProofCore.tr: def of lawful-bytes@0.1.1.0
Import: import lawful-bytes@0.1.1.0/proof_core.bend as ProofCore
Lines 232-234 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=232&end_line=234

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

# Transport of a hypothesis about b to its mirror.
def tr(-H: D.Bytes -> Type, -b: D.Bytes, +len: U32, +t: P.Tree<U32>, e: {BT(len, t) == b : D.Bytes}, h: H(b)) -> H(BT(len, t)):
  AB.subst(D.Bytes, H, b, BT(len, t), Equal.sym(D.Bytes, BT(len, t), b, e), h)

Uses (6):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Equal.sym
  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_base.bend&name=subst
  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