Keith Hossack is Reader in Philosophy, Birkbeck College, University of London, UK.
Recommended. Upper-division undergraduates, graduate students, and faculty. * CHOICE * Hossack's book revives the ancient view that numbers are magnitudes and thus a special kind of property, which are instantiated in the physical world. This view receives a powerful mathematical and philosophical development and defense. The book is highly recommended to anyone with an interest in metaphysics or the philosophy of mathematics. * Oystein Linnebo, Professor of Philosophy, University of Oslo, Norway *