Calvin G. Normore is Brian P. Copenhaver Professor of Philosophy, UCLA, Emeritus Macdonald Professor of Moral Philosophy, McGill University, and Honorary Professor of Philosophy, the University of Queensland. He is a member of the American Academy of Arts and Sciences and former President of the Pacific Division of the American Philosophical Association. His Ph.D. is in Philosophy from the University of Toronto. He has held  regular academic positions at Princeton, the University of Toronto, and (since 1998) at UCLA and irregular ones  at the University of Alberta, York University, Columbia, U.C. Irvine, the Ohio State University and Yale. From 2008-2011 he also held the William MacDonald Chair of Moral Philosophy at McGill University. He specializes in the History of Philosophy, and works (if you call it work) in such diverse areas as metaphysics, the philosophy of time, political philosophy and logic.Stephan Schmid is Professor of the History of Philosophy at Universität Hamburg, and Co-Director of the Maimonides Centre of Advanced Studies: Jewish Scepticism. He works on early modern and late medieval philosophy with a particular focus on the work of Suárez, Descartes, Malebranche, Spinoza, and Leibniz. He is especially interested in questions at the intersection of metaphysics, epistemology and philosophy of mind and is the editor and author of various volumes and articles that have been published with Ergo, Cambridge University Press, De Gruyter, Oxford University Press, Routledge, and Suhrkamp.

• 1. Introduction: Grounding Then and Now (Magali Roques).- 2. Ontological Priority and Grounding in Aristotle’s Categories (Riin Sirkel).- 3. Grounding and Aristotle’s Posterior Analytics (Petter Sandstad).- 4. Ground in Avicenna’s Logic (Paul Thom).- 5. Abelard on Grounding in Ontology and Logic (Christopher J. Martin).- 6. Grounding Medieval Consequence (Jacob W. Archambault).- 7. Does a Stone Make Itself Heavy? A Thirteenth-Century Problem about the Causation of Proper and Inseparable Accidents (Simona Vucu).- 8. Ockham on Priority and Posteriority (JT Paasch).- 9. William of Ockham on Essential Dependence and Causation (Magali Roques).- 10. The Incoherence of Ockham’s Ethics (Thomas M. Ward).- 11. Up in the Air: Buridan’s Principled Rejection of Grounding (Calvin G. Normore).- 12. Valid on Formal Grounds (Mikko Yrjönsuuri).- 13. Two Kinds of Grounding? Suárez on Natural Resultance and Foundation (Stephan Schmid).- 14. Some Work for a Theory of Grounding? (Ricki Bliss).

Calvin G. Normore is Brian P. Copenhaver Professor of Philosophy, UCLA, Emeritus Macdonald Professor of Moral Philosophy, McGill University, and Honorary Professor of Philosophy, the University of Queensland. He is a member of the American Academy of Arts and Sciences and former President of the Pacific Division of the American Philosophical Association. His Ph.D. is in Philosophy from the University of Toronto. He has held  regular academic positions at Princeton, the University of Toronto, and (since 1998) at UCLA and irregular ones  at the University of Alberta, York University, Columbia, U.C. Irvine, the Ohio State University and Yale. From 2008-2011 he also held the William MacDonald Chair of Moral Philosophy at McGill University. He specializes in the History of Philosophy, and works (if you call it work) in such diverse areas as metaphysics, the philosophy of time, political philosophy and logic.Stephan Schmid is Professor of the History of Philosophy at Universität Hamburg, and Co-Director of the Maimonides Centre of Advanced Studies: Jewish Scepticism. He works on early modern and late medieval philosophy with a particular focus on the work of Suárez, Descartes, Malebranche, Spinoza, and Leibniz. He is especially interested in questions at the intersection of metaphysics, epistemology and philosophy of mind and is the editor and author of various volumes and articles that have been published with Ergo, Cambridge University Press, De Gruyter, Oxford University Press, Routledge, and Suhrkamp.

• 1. Introduction: Grounding Then and Now (Magali Roques).- 2. Ontological Priority and Grounding in Aristotle’s Categories (Riin Sirkel).- 3. Grounding and Aristotle’s Posterior Analytics (Petter Sandstad).- 4. Ground in Avicenna’s Logic (Paul Thom).- 5. Abelard on Grounding in Ontology and Logic (Christopher J. Martin).- 6. Grounding Medieval Consequence (Jacob W. Archambault).- 7. Does a Stone Make Itself Heavy? A Thirteenth-Century Problem about the Causation of Proper and Inseparable Accidents (Simona Vucu).- 8. Ockham on Priority and Posteriority (JT Paasch).- 9. William of Ockham on Essential Dependence and Causation (Magali Roques).- 10. The Incoherence of Ockham’s Ethics (Thomas M. Ward).- 11. Up in the Air: Buridan’s Principled Rejection of Grounding (Calvin G. Normore).- 12. Valid on Formal Grounds (Mikko Yrjönsuuri).- 13. Two Kinds of Grounding? Suárez on Natural Resultance and Foundation (Stephan Schmid).- 14. Some Work for a Theory of Grounding? (Ricki Bliss).

Calvin G. Normore is Brian P. Copenhaver Professor of Philosophy, UCLA, Emeritus Macdonald Professor of Moral Philosophy, McGill University, and Honorary Professor of Philosophy, the University of Queensland. He is a member of the American Academy of Arts and Sciences and former President of the Pacific Division of the American Philosophical Association. His Ph.D. is in Philosophy from the University of Toronto. He has held  regular academic positions at Princeton, the University of Toronto, and (since 1998) at UCLA and irregular ones  at the University of Alberta, York University, Columbia, U.C. Irvine, the Ohio State University and Yale. From 2008-2011 he also held the William MacDonald Chair of Moral Philosophy at McGill University. He specializes in the History of Philosophy, and works (if you call it work) in such diverse areas as metaphysics, the philosophy of time, political philosophy and logic.Stephan Schmid is Professor of the History of Philosophy at Universität Hamburg, and Co-Director of the Maimonides Centre of Advanced Studies: Jewish Scepticism. He works on early modern and late medieval philosophy with a particular focus on the work of Suárez, Descartes, Malebranche, Spinoza, and Leibniz. He is especially interested in questions at the intersection of metaphysics, epistemology and philosophy of mind and is the editor and author of various volumes and articles that have been published with Ergo, Cambridge University Press, De Gruyter, Oxford University Press, Routledge, and Suhrkamp.

• 1. Introduction: Grounding Then and Now (Magali Roques).- 2. Ontological Priority and Grounding in Aristotle’s Categories (Riin Sirkel).- 3. Grounding and Aristotle’s Posterior Analytics (Petter Sandstad).- 4. Ground in Avicenna’s Logic (Paul Thom).- 5. Abelard on Grounding in Ontology and Logic (Christopher J. Martin).- 6. Grounding Medieval Consequence (Jacob W. Archambault).- 7. Does a Stone Make Itself Heavy? A Thirteenth-Century Problem about the Causation of Proper and Inseparable Accidents (Simona Vucu).- 8. Ockham on Priority and Posteriority (JT Paasch).- 9. William of Ockham on Essential Dependence and Causation (Magali Roques).- 10. The Incoherence of Ockham’s Ethics (Thomas M. Ward).- 11. Up in the Air: Buridan’s Principled Rejection of Grounding (Calvin G. Normore).- 12. Valid on Formal Grounds (Mikko Yrjönsuuri).- 13. Two Kinds of Grounding? Suárez on Natural Resultance and Foundation (Stephan Schmid).- 14. Some Work for a Theory of Grounding? (Ricki Bliss).