Academic degrees
Habilitation in Logic and Analytical Philosophy, University of Leipzig, 1997
D. Phil., Free University of Berlin, 1992
M.A. Phil., Free University of Berlin, 1988
Scholarships and positions
Professor of Logic and Epistemology, Ruhr University Bochum, October 2010-
Distinguished Professor, Graduate School of Information Sciences, Tohoku University (2025-2030)
Professor of Philosophy of Science and Logic, Dresden University of Technology, July 1999-October 2010
replacement professor of Philosophy of Science and Logic, Dresden University of Technology, summer terms 1998 and 1999, winter term 1998/99
assistant professor (wissenschaftlicher Oberassistent), University of Leipzig, Department of Logic and Philosophy of Science, September 1998, March 1999
assistant professor (wissenschaftlicher Assistent), University of Leipzig, Department of Logic and Philosophy of Science, August 1993--August 1998
postdoc, University of Hamburg, Graduate School in Cognitive Science, January-July 1993
assistant professor (universitair docent), Universiteit van Amsterdam, Institute for Logic, Language and Computation (ILLC), 1992
lecturer (Lehrbauftragter), FU Berlin, Department of Computer Science 1989-1991; University of Hamburg, Department of Philosophy, summer term 1993; University of Leipzig, Department of Logic and Philosophy of Science, summer term 2005; University of Göttingen, Department of Philosophy, winter term 2009/2010
research assistant (wissenschaftlicher Mitarbeiter), FU Berlin, Department of Philosophy, 1991
scholarship holder, German National Academic Foundation (Studienstiftung des deutschen Volkes) and Senate of Berlin 1986-1990