•  129
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    This paper defends the thesis that the mediaeval genre of logical treatises De obligatiombus contained a theoretical account of counterfacutal reasoning, perhaps the first such account in the history of philosophy. This interpretation helps to explain some of the theoretical disputes in the obligationes literature in the first half of the fourteenth century. Section 1 is introductory. Section 2 presents Walter Burley's theory, while section 3 argues for the counterfactual interpretation of oblig…Read more
  •  70
    In the summer of 1980, I was privileged to be on the teaching staff of the Summer Institute on Medieval Philosophy held at Cornell University under the direction of Norman Kretzmann and the auspices of the Council for Philosophical Studies and the National Endowment for the Humanities. While I was giving a series of lectures on supposition theory, I went to my office one morning, and there under the door some anonymous wag from the Institute had slid the pen and ink drawing you see in the graphi…Read more
  •  42
    Priority of Analysis and the Predicates of "O"-form Sentences
    Franciscan Studies 36 (1): 263-270. 1976.
  •  110
    Anselm and ambiguity
    International Journal for Philosophy of Religion 7 (3). 1976.
  •  40
    The mediaeval liar: a catalogue of the insolubilia-literature
    Pontifical Institute of Mediaeval Studies. 1975.
  •  103
    Insolubles
    Stanford Encyclopedia of Philosophy. 2008.
    This is a supplement my original 2005 article "Insolubles" in the Stanford Encyclopedia of Philosophy.
  •  75
    Boethius's "de topicis differentiis"
    Journal of the History of Philosophy 18 (4): 470-471. 1980.
  •  96
    Robert Fland's Consequentiae: An Edition
    Mediaeval Studies 38 (1): 54-84. 1976.
  •  136
    What is a proof for the existence of God?
    International Journal for Philosophy of Religion 6 (4). 1975.
  •  169
    This is the first of three “tomes” of Jon Stewart’s habilitationisskrift in philosophy at the University of Copenhagen; the second concerns The Martensen Period: 1837–1842, and the third Kierkegaard and the Left-Hegelian Period: 1842–1860. Together they make up volume 3 of Stewart’s series Danish Golden Age Studies . Their purpose is “to put forth the basic information about the Danish Hegel reception in a clear and readable fashion” . Such information needs to be put forth because, unlike Hegel…Read more
  • V. FERRER "Tractatus de suppositionibus" (review)
    History and Philosophy of Logic 2 (n/a): 137. 1981.
  •  129
    John Wyclif has been described as "ultrarealist" in his theory of universals. This paper attempts a preliminary assessment of that judgment and argues that, pending further study, we have no reason to accept it. It is certainly true that Wyclif is extremely vocal and insistent about his realism, but it is not obvious that the actual content of his view is especially extreme. The paper distinguishes two common medieval notions of a universal, the Aristotelian/Porphyrian one in terms of predicatio…Read more
  •  80
    The Cambridge Companion to Ockham (edited book)
    Cambridge University Press. 1999.
    The Franciscan William of Ockham was an English medieval philosopher, theologian, and political theorist. Along with Thomas Aquinas and Duns Scotus, he is regarded as one of the three main figures in medieval philosophy after around 1150. Ockham is important not only in the history of philosophy and theology, but also in the development of early modern science and of modern notions of property rights and church-state relations. This volume offers a full discussion of all significant aspects of O…Read more
  •  105
    1 There have been several editions of Fridugisus’ letter. I have consulted those in Jaques-Paul Migne, Patrologiae cursus completus … series latina, 221 vols., (Paris: J.-P. Migne, 1844–1864), vol. 105, cols. 751–756; Francesco Corvino, “Il ‘De nihilo et tenebris’ di Fredegiso di Tours,” Rivista critica di storia della filosofia (1956), pp. 273–286; and the most recent and authoritative edition, in Concettina Gennaro, Fridugiso di Tours e il “De substantia nihili et tenebrarum”: Edizione critica…Read more
  • Roger Swyneshed's Insolubilia
    Archives d'Histoire Doctrinale et Littéraire du Moyen Âge 46. 1979.
  •  80
    divinity in reference to substance or in some other way; and I judge that a path of inquiry should be taken from that place which is agreed to be the clear starting point of all affairs, that is from the very foundations of the catholic faith. So, if I should ask whether He who is called Father is a substance, the response would be that He is a substance. But if I should ask whether the Son is a substance, the response would be the same. And no one..
  •  1
    Peter of Ailly : Concepts and Insolubles. An Annotated Translation
    Tijdschrift Voor Filosofie 44 (4): 730-730. 1982.
  •  146
    What I want to talk about here is a puzzle for historians of philosophy who, like me, have spent a fair amount of time studying the history of mediaeval logic and semantic theory. I don’t know how to solve it, but in various forms it has come up repeatedly in my own work and in the work of colleagues I have talked with about it. I would like to share it with you now.
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