At the Sources of the Twentieth-Century Analytical Movement

Anna Brożek, Ph.D. (2006), University of Warsaw, professor of philosophy; the author of over 10 books, including Theory of Questions (Rodopi, 2011) and Kazimierz Twardowski. Die Wiener Jahre (Springer, 2011), and several dozen of articles from the domain of logical semiotics, methodology, and philosophy of music.

Jacek Jadacki, Ph.D. (1977), University of Warsaw, professor emeritus, the author of many books, among others: From the Viewpoint of the Lvov-Warsaw School (Rodopi, 2003) and Stanislaw Leśniewski: Genius of Logic (Epigram, 2020), and a few hundred papers of various domains of philosophy.