Logic and cognition: Two faces of psychologism

Abstract

In this paper two concepts of psychologism in logic are outlined: the one which Frege and Husserl fought against and the new psychologism, or cognitivism, which underlies a cognitive turn in contemporary logic. Four issues such cognitively oriented logic should be interested in are indicated. They concern: new fields opened for logical analysis, new methods and tools needed to address these fields, neural basis of logical reasoning, and an ed- ucational problem: how to teach such logic? Several challenging questions, which arise in the context of these issues, are listed.