I am a professor and University Research Chair at the  Department of Philosophy of the VU Amsterdam. Before that, I was a professor and Rosalind Franklin fellow at the Department of Theoretical Philosophy of the Faculty of Philosophy of the University of Groningen (2011-2018). I am also an external member of the Munich Center for Mathematical Philosophy, and one of the Editors-in-Chief of Synthese. I am currently running the ERC Consolidator project 'The Social Epistemology of Argumentation' (2018-2023).

My main fields of research are history and philosophy of logic, philosophy of mathematics, and social epistemology. I also have general interests in medieval philosophy, philosophy of psychology and cognitive science, general philosophy of science, philosophy of mind, issues pertaining to gender and race, and empirically-informed approaches to philosophy in general.

From 2011 to 2016 I led the NWO-funded research project 'The Roots of Deduction'.

I used to blog at New APPS and M-Phi.


                Happily sipping a mojito in Fuerteventura