LAWS.octets_at_append_add: law of bend-osdev-bytes@0.1.1.0
Import: import bend-osdev-bytes@0.1.1.0/LAWS.bend as LAWS
Lines 396-400 of bend-osdev-bytes@0.1.1.0/LAWS.bend: https://jend.leeeet.dev/read.txt?path=bend-osdev-bytes@0.1.1.0/LAWS.bend&start_line=396&end_line=400

import Base
import bend-osdev-bytes@0.1.1.0/bytes.bend as B

law octets_at_append_add:
  for +a: B.Octets
  for +b: B.Octets
  for +i: Nat
  {B.Octets.at(B.Octets.append(a, b), Nat.add(B.Octets.len(a), i)) == B.Octets.at(b, i) : Maybe<&2, U32>}

Uses (9):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.add
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bytes@0.1.1.0/PROOF.bend&name=p_at_append_add
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bytes@0.1.1.0/bytes.bend&name=Octets
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bytes@0.1.1.0/bytes.bend&name=Octets.append
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bytes@0.1.1.0/bytes.bend&name=Octets.at
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bytes@0.1.1.0/bytes.bend&name=Octets.len