Daniel Cohnitz holds the chair for theoretical philosophy at Utrecht University. Cohnitz studied philosophy, German literature and language, and history at the Heinrich Heine University Düsseldorf. In 2005 he defended his dissertation on Thought Experiments in Philosophy (Gedankenexperimente in der Philosophie) at Düsseldorf. From 2006 to 2015 he was professor of theoretical philosophy at the University of Tartu in Estonia. Since January 2016 he is professor of theoretical philosophy in Utrecht. His research interests include metaphilosophy, epistemology, metaphysics, the philosophy of mind, language, mathematics, and logic, and related areas of philosophy and cognitive science. Jussi Haukioja is professor of philosophy at NTNU Trondheim, Norway. Haukioja studied philosophy, linguistics, and mathematics at the University of Turku, Finland. In 2000 he defended his dissertation on Rule-Following, Response-Dependence, and Realism. From 2001 to 2010 he was employed in research positions funded by the Academy of Finland. He joined NTNU Trondheim in 2010, and has been full professor since 2011. His research interests include philosophy of language, philosophy of mind, and metaphilosophy.