International Journal of Mathematics and Systems Science 2024, 7(8); https://doi.org/10.18686/ijmss.v7i8.8579

Frege and Putnam represent two different approaches to anti-psychologism. Psychologism has often been interpreted as a form of internalism, while anti-psychologism is associated with externalist viewpoints. This paper examines the transformation of the development process from the opposition between psychologism and anti-psychologism to their influence and integration. It specifically focuses on the issue of “anti-psychologism” and takes G.Frege, one of the representatives of anti-psychologism, as the starting point. The paper is based on his anti-psychologism thought, with a critical analysis of his argumentation against psychologism and an examination of H.Putnam’s anti-psychologism, which differs from Frege’s perspective. By understanding their rational factors, theoretical difficulties, and limitations, we can gain a clearer insight into “psychologism” and recognize the rationality of psychological factors in philosophical research topics and methods