Philosopher. He works on various aspects of the thought of Ludwig Wittgenstein and Stanislaw Lem. He recently published the monograph Calculus: the philosophy of formal sciences and its relation to the concept of subject in the early and middle period of Ludwig Wittgenstein’s work (Krakow 2016). In 2021, the first volume of the anthology Philosophical Lem, co-authored by him, will be published.