Mark Jago (Ph.D. 2006, Nottingham University) is a philosopher in Nottingham, UK, interested in philosophical and formal logic, language, metaphysics and the philosophy of mind.

Kit Fine is Silver Professor of Philosophy and Mathematics at New York University.  He specializes in Metaphysics, Logic, and Philosophy of Language. He is a fellow of the American Academy of Arts and Sciences, and a corresponding fellow of the British Academy. He has held fellowships from the Guggenheim Foundation and the American Council of Learned Societies and is a former editor of the Journal of Symbolic Logic. In addition to his primary areas of research, he has written papers in ancient philosophy, linguistics, computer science, and economic theory.