Abstract

For the primary purpose of eliminating and overcoming ignorance, Buddhist philosophers put forward a method of negation. It is Nagarcuna who developed and systematized this method.- and his work is mainly on the subject of negation. Its Two Truth Doctrines, catuskoti, the Eight-Tiered Method of Existence, and finally the Middle Way, bear traces of, or even build upon, this method. In this context, we will talk about the meaning of catuskoti in Indian philosophy, try to explain the uncertainty of these four alternatives, and put forward suggestions and interpretations for showing these alternatives. Then, from the perspective of classical and non-classical logic, the location of these alternatives will be discussed.