References

  • Hausman, A., Boardman, F., and Kahane, H. (2021). Logic and Philosophy: A Modern Introduction. Hackett Publishing Company, Inc., 13th edition
  • O’Leary, M. L. (2015). A First Course in Mathematical Logic and Set Theory. John Wiley & Sons.
  • 清水義夫 (1984). 記号論理学. 東京大学出版会.
  • Singleton, K. (2023). Vegan FAQ. Ver. 2.1. TheRealArg Books.