LAWS.append_ok: law of lawful-bytes@0.1.1.0
Import: import lawful-bytes@0.1.1.0/LAWS.bend as LAWS
Lines 203-211 of lawful-bytes@0.1.1.0/LAWS.bend: https://jend.leeeet.dev/read.txt?path=lawful-bytes@0.1.1.0/LAWS.bend&start_line=203&end_line=211

import Base
import lawful-bytes@0.1.1.0/defs.bend as D
import lawful-bytes@0.1.1.0/bytes.bend as B

law append_ok:
  for dst: D.Bytes
  for src: D.Bytes
  for d: Nat
  for s: U32
  for n: U32
  for hd: {D.ok(dst, d) == True{} : Bool}
  for hc: {Nat.is_le(Nat.add(D.size(dst), U32.to_nat(n)), D.cap(dst)) == True{} : Bool}
  {D.ok(Pair.fst(D.Bytes, D.Bytes, B.append(dst, src, s, n)), d) == True{} : Bool}

Uses (14):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  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=Nat.is_le
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Pair.fst
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.to_nat
  https://jend.leeeet.dev/definition.txt?path=lawful-bytes@0.1.1.0/PROOF.bend&name=append_ok.go
  https://jend.leeeet.dev/definition.txt?path=lawful-bytes@0.1.1.0/bytes.bend&name=append
  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/defs.bend&name=cap
  https://jend.leeeet.dev/definition.txt?path=lawful-bytes@0.1.1.0/defs.bend&name=ok
  https://jend.leeeet.dev/definition.txt?path=lawful-bytes@0.1.1.0/defs.bend&name=size
  https://jend.leeeet.dev/definition.txt?path=lawful-bytes@0.1.1.0/proof_core.bend&name=bmirror