WORLD LOGIC DAY 2026

World Logic Day(s) is a series of events organized in Poland as a part of World Logic Day, celebrated every year around January, 14. (see: https://www.unesco.org/en/days/world-logic).

The tradition of logical investigation in Poland is long-lasting and impressive.  Logic has been practiced in Poland since the 14th century when the University in Krakow was founded.  Six centuries later, in the 1920s and 1930s, the Warsaw School of Logic, founded by Jan Łukasiewicz, Stanisław Leśniewski, Alfred Tarski, and their followers, became a world-famous logical center. For the coryphaei of this school, mathematical logic was both an independent, perspective area of research and a necessary element of education.  The importance of logic as the Polish specialty was emphasized in a saying: "Italians have "bel canto", Poles have logic". The value of teaching logic was justified by the conviction that logic is the morality of thought. 

Previous Polish editions:

2023: Jan Łukasiewicz  https://sites.google.com/uw.edu.pl/wld2025/home 

2024: Kazimierz Ajdukiewicz: https://sites.google.com/uw.edu.pl/wld2024/symposium-on-kazimierz-ajdukiewicz 

2025 : Stanisław Leśniewski: https://sites.google.com/uw.edu.pl/wld2025/home?authuser=1 

EDITION  2026 - PROGRAM:

ZOOM LINK: https://uw-edu-pl.zoom.us/j/94557215255 

SESSION ONE 9.30-11.30 CET: 

Around the Encyclopedia of the Lvov-Waraw School (pl)

Speakers: 

Cezar Domański (Maria Curie-Skłodowska University of Lublin) 

Joanna Dudek (University of Zielona Góra)

Dariusz Łukasiewicz (Unibversity of Bydgoszcz)

Marek Rembierz (University of Silesia)

Tadeusz Szubka (University of Szczecin)

Hosts: Anna Brożek & Aleksandra Gomułczak

SESSION TWO 13.00-15.00 CET: 

"Italians have bel canto, Poles have logic." Why is logic a Polish specialty?

Speakers:

Srećko Kovač (Croatian Academy of Sciences) 

Zuzana Rybarikova (University of Ostrava)

Peter Simons (Trinity College Dublin)

Adam Trybus (Jagiellonian University)

Jan Woleński (Jagiellonian University)

Hosts: Anna Brożek (University of Warsaw), Aleksandra Gomułczak (Adam Mickiewicz University in Poznań / University of Warsaw), Kordula Świętorzecka (Cardinal Stefan Wyszyński University of Warsaw)

SESSION THREE  17.00-19.30 CET:

Secrets of the Scottish Café. Mathematicians, Logicians, and Philosophers in Lwów

Speakers:

Taras Banakh (Ivan Franko University of Lviv)

Yaroslav Prytula (Ivan Franko University of Lviv)

Mykhailo Zarichnyi (Ivan Franko University of Lviv)

Hosts: Anna Brożek (University of Warsaw), Kordula Świętorzecka (Cardinal Stefan Wyszyński University in Warsaw)

Organizers:

The Lvov-Warsaw School Research Center, University of Warsaw (abrozek@uw.edu.pl)

Department of Logic, Cardinal Stefan Wyszyński University in Warsaw (k.swietorzecka@uksw.edu.pl)

Department of Mechanics and Mathematics, Ivan Franko University of Lviv