Peter Sullivan is a Professor at the University of Stirling where he has taught since 1993. The primary focus of his published work has been on the founding figures of analytic philosophy: Frege, Russell, the early Wittgenstein, and Ramsey.
Michael Potter, University Lecturer in Philosophy, University of Cambridge, and Fellow, Fitzwilliam College, Cambridge . He is the author of Sets (OUP, 1990), Reason's Nearest Kin (OUP, 2000), Set Theory and its Philosophy (OUP, 2004), and Mathematical Knowledge (edited with Mary Leng and Alexander Paseau, OUP, 2007).