Filip Grgic is Senior Research Fellow at the Institute of Philosophy in Zagreb. He is the author and editor of several books, including Free Will and Action: Historical and Contemporary Perspectives (Springer, 2018), as well as numerous articles in journals such as Phronesis , Archiv für Geschichte der Philosophie , Ancient Philosophy , and the European Journal of Philosophy among others. His main areas of interest include history of philosophy (ancient philosophy, history of Croatian philosophy), moral responsibility, and luck. Kordula swietorzecka is Professor of Philosophical Logic at the Cardinal Stefan Wyszyoski University (CSWU) in Warsaw, Head of the Department of Logic at the Institute of Philosophy of CSWU, and author of publications in the field of formal philosophy, philosophical logic, and the history of logic. Her formal philosophical analyses include the formalizations of several concepts of metaphysics of Aristotle, Leibniz, Bolzano and the formalizations of various arguments for the existence of the absolute (Aristotle, Thomas Aquinas, Avicenna, Leibniz, Bolzano, Gödel). She also undertakes research in the field of the history of logic, with particular emphasis on selected logicians collaborating with or belonging to the Lvov-Warsaw School. Anna Brozek is a philosopher, pianist, music theorist, and professor at the Faculty of Philosophy, University of Warsaw, as well as Head of the Lvov-Warsaw School Research Center. She is the author of numerous articles and several books from the domain of logical semiotics, methodology, history of philosophy and logic, as well as theory and philosophy of music.

Her publications include, among others, Questions and Answers (Rodopi/Brill 2011), and Kazimierz Twardowski. Die Wiener Jahre (Springer 2010) - Winner of the 2017 National Science Center Award (Poland).