Teoria wielości rzeczywistości Leona Chwistka – rys metodologiczny i historyczny

The aim of my article is to present the methodological and historical foundations of Leon Chwistek’s theory of the plurality realities. In my paper, I do not consider the version of this theory presented in Chwistek’s book The Limits of Science, because in this book the theory in question is considered as an individual system, and not as a purely ontological view. I present and analyze briefly two main interpretations of the aforementioned theory, and also assign to them a number of ideas from Chwistek’s works dealing with manifold realities. I focus mainly on Sense and Reality, the work that introduces the idea of the plurality of realities.