Appendix B
摘要
Building upon the pioneering work of H. Jiang, who developed a computer program for classifying finite BCK-algebras, J. Meng and X. X. Niu conducted a comprehensive study of the commutativity, implicativity, and positive implicativity of all BCK-algebras with an order of 5 or less. This section draws upon the valuable insights presented in the work of J. Meng and Y. B. Jun (see [213, pp. 242–278] or [265, Appendix A]).