Psychologism and neopsychologism in philosophy of logic

Abstract

Thesis focuses on psychologism – a philosophical theory according to which the ontological and epistemological foundations of logic and mathematics are our mental states. Neopsychologism is a new set of psychologistic ideas that appeared already in the XXth century and are influenced by new psychology including cognitive science and artificial intelligence. Its central idea is that the main problem of the early psychologism in logic criticized by Husserl and Frege (Willard 1980) is resolved in the contemporary neopsychologistic research.