• The Metaphysics of Habits in Buridan
    In Nicolas Faucher & Magali Roques (eds.), The Ontology, Psychology and Axiology of Habits in Medieval Philosophy, Springer. pp. 321-331. 2018.
    This paper presents John Buridan’s nominalist ontology of habits, as the acquired qualities of innate powers aiding or hampering their operations, against the background of a more traditional interpretation of Aristotle’s doctrine to be found in Boethius, Albert the Great, Thomas Aquinas, and Cajetan. The paper argues that considerations of his late question commentary on Aristotle’s Nicomachean Ethics may have forced Buridan to rethink some of his earlier arguments for his parsimonious nominali…Read more
  •  24
    Artificial intelligence and its natural limits
    with Karl D. Stephan
    AI and Society 1-10. forthcoming.
    An argument with roots in ancient Greek philosophy claims that only humans are capable of a certain class of thought termed conceptual, as opposed to perceptual thought, which is common to humans, the higher animals, and some machines. We outline the most detailed modern version of this argument due to Mortimer Adler, who in the 1960s argued for the uniqueness of the human power of conceptual thought. He also admitted that if conceptual thought were ever manifested by machines, such an achieveme…Read more
  • Thomistic “Monism” vs. Cartesian “Dualism”
    History of Philosophy and Logical Analysis 10 (1): 92-112. 2007.
  • Aquinas’ Theory of the Copula and the Analogy of Being
    History of Philosophy and Logical Analysis 5 (1): 159-176. 2002.
  • Medieval Themes, Medieval and Modern Volume 11: Proceedings of the Society for Medieval Logic and Metaphysics (edited book)
    with Alexander Hall
    Cambridge Scholars Publishing. 2014.
  •  59
    Medieval Philosophy: Essential Readings with Commentary (edited book)
    with Fritz Allhoff and Anand Jayprakash Vaidya
    Wiley-Blackwell. 2007.
    This collection of readings with extensive editorial commentary brings together key texts of the most influential philosophers of the medieval era to provide a comprehensive introduction for students of philosophy. Features the writings of Augustine, Thomas Aquinas, Boethius, John Duns Scotus and other leading medieval thinkers Features several new translations of key thinkers of the medieval era, including John Buridan and Averroes Readings are accompanied by expert commentary from the editors,…Read more
  •  2
    This paper is not going to offer any criticism of the way Gaven Kerr treats Aquinas’ argument. Instead, it offers an alternative way of reconstructing Aquinas’ argument, intending to strengthen especially those controversial aspects of it that Kerr’s reconstruction left untreated or in relative obscurity. Accordingly, although the paper’s treatment will have to have some overlaps with Kerr’s, it will deal with issues essential to adequate replies to certain competent criticisms of his argument u…Read more
  •  3
    The Metaphysics of Personal Identity: Proceedings of the Society for Medieval Logic and Metaphysics Volume 13 (edited book)
    with Stephen Ogden and Alex Hall
    Cambridge Scholars Publishing. 2016.
  • Hylomorphism and Mereology: Proceedings of the Society for Medieval Logic and Metaphysics Volume 15 (edited book)
    with Alexander W. Hall
    Cambridge Scholars Publishing. 2018.
  •  8
    Aquinas’ Balancing Act
    Bochumer Philosophisches Jahrbuch Fur Antike Und Mittelalter 21 (1): 29-48. 2018.
    In this paper, I will primarily argue for the consistency of Aquinas’ conception, according to which the human soul, uniquely in God’s creation, is both the inherent, material, substantial form of the human body, and the subsistent immaterial substance underlying the immaterial operations of its immaterial, rational powers, namely, intellect and will. In this discussion, I will point out that typical challenges to Aquinas’ conception usually rely on semantic or ontological assumptions that can p…Read more
  • Questions on the soul by John Buridan and others (edited book)
    Springer. 2017.
  •  7
    Universality and Immateriality
    Acta Philosophica 24 (1): 31-42. 2015.
  •  5
    Essay Review
    History and Philosophy of Logic 24 (2): 141-162. 2003.
  •  12
    The Medieval Liar
    Speculum 93 (1): 121-131. 2018.
  •  194
    It is supposed to be common knowledge about the history of ideas that one of the few medieval philosophical contributions preserved in modern philosophical thought is the idea that mental phenomena are distinguished from physical phenomena by their intentionality, their directedness toward some object. As is usually the case with such commonplaces about the history of ideas, this claim is not quite true. Medieval philosophers routinely described ordinary physical phenomena, such as reflections i…Read more
  • A Világ Örökkévalóságáról (review)
    Magyar Filozofiai Szemle 6. 1999.
  • Latin as a Formal Language
    Cahiers de l'Institut du Moyen-Âge Grec Et Latin 61 78-106. 1991.
  •  16
    Ontological Reduction by Logical Analysis and the Primitive Vocabulary of Mentalese
    American Catholic Philosophical Quarterly 86 (3): 403-414. 2012.
    This paper confronts a certain modern view of the relation between semantics and ontology with that of the late-medieval nominalist philosophers, William Ockham and John Buridan. The modern view in question is characterized in terms of what is called here “the thesis of onto-semantic parallelism,” which states that the primitive categorematic concepts of our semantics mark out the primary entities in reality. The paper argues that, despite some apparently plausible misinterpretations to the cont…Read more
  •  38
    Numerical Quantifiers in game-theoretical semantics
    with Gabriel Sandu
    Theoria 56 (3): 173-192. 1990.
  •  10
    The lectures presented here are the by-product of my teaching in Yale's Directed Studies program from 1991 through 1993 (hence the title, for want of a better). In fact, being what they are, lecture notes for an introductory philosophy course, they present rather elementary material. Yet, I flatter myself, they do not lack certain originality in the treatment of some of the basic questions of traditional metaphysics and epistemology. In any case, over the past couple of years they proved to be q…Read more
  •  50
    Is there a grammar of the name ‘God’? In an obvious and trivial sense there certainly is. This term, being a part of the English language, has to obey the grammatical rules of that language. So, for example, by consulting the relevant textbooks and dictionaries we can establish that ‘God’ is a noun, so it can function as the subject or predicate of simple categorical sentences, but it cannot, for example, function as a verb or a preposition.
  •  213
    This paper argues that Aquinas's conception of the human soul and intellect offers a consistent alternative to the dilemma of materialism and post-Cartesian dualism. It also argues that in their own theoretical context, Aquinas' arguments for the materiality of the human soul and immateriality of the intellect provide a strong justification of his position. However, that theoretical context is rather "alien" to ours in contemporary philosophy. The conclusion of the paper will point in the direct…Read more
  •  74
    Saint Anselm’s proof for God’s existence in his Proslogion, as the label “ontological” retrospectively hung on it indicates, is usually treated as involving some sophisticated problem of, or a much less sophisticated tampering with, the concept of existence. In this paper I intend to approach Saint Anselm’s reasoning from a somewhat different angle.
  •  29
    On Kenny on Aquinas on Being: A Critical Review of Aquinas on Being (review)
    International Philosophical Quarterly 44 (4): 567-580. 2004.
  •  115
    1st GPMR Workshop on Logic and Semantics: Medieval Logic and Modern Applied Logic, Reinische Friedrich Wilhelms Universität Bonn, Germany, 2007.