Contributors

Jeffrey E. Brower is Assistant Professor of Philosophy at Purdue University. He is editor of a special issue of American Catholic Philosophical Quarterly devoted to Peter Abelard, and author of several publications on medieval philosophy and philosophy of religion. His recent articles include “Medieval theories of relations” in the Stanford Encyclopedia of Philosophy and “Anselm’s ethics” in The Cambridge Companion to Anselm.
Kevin Guilfoy is Assistant Professor of Philosophy at the University of Akron. He is the author of several articles on Abelard’s logic and ethics, as well as the entries on John of Salisbury and William of Champeaux in the Stanford Encyclopedia of Philosophy.
Yukio Iwakuma is Professor in the Center for Arts and Sciences, Fukui Prefectural University, Japan. He has written widely on issues in twelfth-century logic and his many articles include “Twelfth century Nominales: the posthumous school of Peter Abelard,” “Vocales, or early Nominalists,” and “Pierre Abelard et Guillaume de Champeaux dans les premières années du XIIe siècle: une etude préliminaire.”
Klaus Jacobi is Professor of Philosophy (emeritus), Albert-Ludwig University of Freiburg. He has written widely on issues in medieval philosophy, language, and logic and is co-editor (with Christian Strub) of the forthcoming critical edition of Abelard’s Logica “ingredientibus” commentary on Aristotle’s De Interpretatione.