WordSubtraction.undo: law of stelliferous@0.0.2.0
Import: import stelliferous@0.0.2.0/proofs/word_subtraction.bend as WordSubtraction
Lines 6-12 of stelliferous@0.0.2.0/proofs/word_subtraction.bend: https://jend.leeeet.dev/read.txt?path=stelliferous@0.0.2.0/proofs/word_subtraction.bend&start_line=6&end_line=12

import Base

law undo:
  for +n: Nat
  for +a: Word(n)
  for +b: Word(n)
  for +f: Bool
  for +c: Bool
  {Word.adc(n,Word.adc(n,a,b,f,c),b,Bool.not(f),Bool.not(c)) == a : Word(n)}

Uses (7):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.not
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Word
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Word.Con
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Word.Nil
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Word.adc