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NEWS:
NEWS:
Invited talk: I will give two talks in Paris on December 2nd and 3rd, 2025:
December 2: PHILMATH Seminar @ IHPST
Decemebr 3: PANALM Seminar, jointly organized by IHPST, IJN, and the Institut Jean Nicod (IJN) in Paris and the Archives Henri Poincaré (AHP) in Nancy.
Amsterdam Young Academy presents the Quartet Game for young academic! Please visit here for more information about the project and the cards
Assistant Professor (tenured)
Assistant Professor (tenured)
Institute for Logic, Language and Computation
Department of Philosophy
University of Amsterdam
Institute for Logic, Language and Computation
Department of Philosophy
University of Amsterdam
Photo by Geert Broertjes
My work lies at the intersection of formal epistemology and philosophical logic. I am particualrly interested in (1) logics and quantitative formalisms combining notions of evidence, knowledge, and belief; (2) hyperintentional logics for representational propositional attitudes; (3) logics of reality oriented imagination; (4) the epistemology & logics of conditionals. Lately, thanks to my brilliant master and PhD students, I have also been thinking about logics of intention and social aspects of evidence sharing.
I am (still) a big fan of using topological semantics to model epistemic notions (see my dissertation Evidence in Epistemic Logic: A Topological Perspective).
My Erdös number is 3, via the path
Hans van Ditmarsch, Sophia Knight, Aybüke Özgün. Announcement as Effort on Topological Spaces-Extended version. Synthese (2017). pp. 2927–2969.
R.E.L. Aldred, M.D. Atkinson, Hans van Ditmarsch, C.C. Handley, D.A. Holton, D.M.C. McCaughan: Permuting machines and priority queues. Theoretical Computer Science, 2005. (DOI, PDF)
P. Erdös, R.L. Hemminger, D.A. Holton and B.D. McKay: On the chessmaster problem. Progress in Graph Theory, 1984. (PDF)
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