An Analysis On Solutions Of Semantic Paradox

Paradox, which attracted the wise men in different times, has been a difficult problem for more than two thousand years since the liar paradox appeared. Scholars in different times spent plenty of time on the research of it. As a result, a series of family problems of paradox came out. A deep analysis and research of these problems may not only improve the study of logic, but also accelerate the development of mathematics and philosophy.This paper is divided into four parts:The first part introduces the current research of paradox, including research methods and significance, as well as various problems that exist in it. The second part discusses the matured concept of paradox and deals with it accurately. The third part elaborates the family members of paradox to classify the study of it. In this part, the specific solutions of paradox in the history will be given in details, and these solutions will be assessed by RZH resolving standard. The last part is mainly about the "Insolubilia" and its medieval solutions, particularly how John Buridan, one of the greatest logicians in the middle ages, handled liar-type paradoxes basing on his token-based, semantically closed logic, and what is the significance of these medieval solution strategies of paradoxes to modern semantic paradoxes.