Relativity course notes 2006  (in Hungarian)

Relativity-and-logic presentation 2009

Relativitáselmélet logikus alapon 2010


Definability Theory Course 2014


Definability theory course notes 2014 (August 28, 2014, still not quite finished)




End of Time, LaPoM Seminar, September 27, 2013.

End of Time Part II, LaPoM Seminar, October 11, 2013. 

The end of time (defining time and space experimentally). Text of talk Workshop on the Future of Logic, Amsterdam, September 27, 2014.

Adventures in the network of theories. Text of talk. Salzburg Conference for Young Analytic Philosophy, September 7, 2016 and Renyi Institute of Mathematics September 25, 2016.

Marriage of groups and Boolean algebras. pdf  odp Abstract18 Absract17 Renyi Institute of Mathematics Seminar, December 21, 2018.

Conceptual structure of spacetimes, and category of concept algebras. Foundations of Categorical Philosophy of Science, Munich, April 26, 2019. Abstract Slides Text of talk