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Announcements of talks and events by email are available to members of the European Set Theory Society, who receive an invitation to join the subscribers list.

If you are a member but have not received an invitation, please contact us at european.set.theory@gmail.com.


×

About

The European Set Theory Society supports research and networks in set theory and its connections with related areas in mathematics and logic worldwide. For instance, we organise the biennial European Set Theory Conference (ESTC) series, at which the Hausdorff Medal is awarded, organise the European Set Theory Colloquia, support meetings and distribute information about conferences and worldwide hybrid and online activitites in the blog.
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Meetings

The Horizons in Descriptive Set Theory in honour of Alexander Kechris will take place from 10 to 12 October 2026 at Cornell University.

Past meetings

The European Set Theory Conference took place from 18 to 22 May 2026 at the University of Helsinki.
Group photo
Hausdorff Medal 2026 ceremony
Early Career Award 2025 ceremony

Set theory

Set theory is the mathematical theory of the infinite. It is connected with model theory, computability, algebra, combinatorics, graph theory, topology, analysis, measure theory, category theory, game theory, theoretical computer science and philosophy of mathematics. The origins of set theory lie in Georg Cantor's theory of transfinite numbers (1874) and the axiomatization by Zermelo et al. (1908). Modern set theory began with the introduction of the method of forcing by Cohen (1963) and the independence of the continuum hypothesis. In the last decades, set theory has witnessed a renaissance as new research directions emerged.
Literature    Links

News

Jouko Väänänen (University of Helsinki) has been awarded an honorary doctorate by the National University of Colombia, recognizing both his remarkable contributions to mathematical logic and his long-standing commitment to the mathematical community in Colombia.

The laudatio by Miguel Moreno is available here.

(Photo by Linda Tammisto, copyright University of Helsinki)
The Eighth European Set Theory Colloquium took place in hybrid form at the 17th Young Set Theory Workshop in Barcelona on Tuesday 1 September at 17:45-19:30.

The panelists were James Cummings, Monroe Eskew, Sandra Müller and Zoltan Vidnyansky.

The recording is available here.
The programme Infinity and the Foundations of Contemporary Mathematics will take place from 17 January to 28 April 2028 at the Isaac Newton Institute in Cambridge. Please see here for more information.
The Seventh Hausdorff Medal was awarded to Farmer Schlutzenberg. The Hausdorff Medal award ceremony was held during the 10th European Set Theory Conference from 18 to 22 May 2026 in Helsinki.
The Early Career Award 2025 of the European Set Theory Society was awarded to Jan Grebík for his work in Borel combinatorics.