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73The problem of universals and wyclif's alleged "ultrarealism"Vivarium 43 (1): 111-123. 2005.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
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21Le Antinomie Semantiche Nella Logica Medievale. By Francesco Bottin. Padova: Editrice Antenore. 1976. Pp. 222. L. 6,000Dialogue 17 (2): 384-390. 1978.
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37The 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
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46How to Start and StopJournal of Philosophical Research 19 193-221. 1994.Mediaeval logicians often wrote about changes between contradictory states, for example a switch’s changing from being on to not being on. One of the questions discussed in these writings was whether at the moment the change occurs the changing thing is in the earlier or the later state. The present paper investigates the general setting for that question, and discusses the answer given by Walter Burley, an important early-fourteenth century author whose theory was a standard one. Burley’s theor…Read more
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26Richard Lavenham's Treatise Scire: An Edition, with Remarks on the Identification of Martin (?) Bilond's Obiectiones consequentiarumMediaeval Studies 46 (1): 1-30. 1984.
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Boethius, "Boethius's "De topicis differentiis"", trans., with notes and essays, by Eleanore Stump (review)Journal of the History of Philosophy 18 (4): 469. 1980.
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Peter of Ailly : Concepts and Insolubles. An Annotated TranslationTijdschrift Voor Filosofie 44 (4): 730-730. 1982.
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101What 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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10An alternative to Brian Skyrms' approach to the LiarNotre Dame Journal of Formal Logic 17 (1): 137-146. 1976.
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The Mediaeval Liar: A Study of John Buridan's Position on the Paradox, with a Catalogue of the "Insolubilia"--Literature of the Middle AgesDissertation, University of Toronto (Canada). 1972.
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29Robert Fland's Insolubilia: An edition, with comments on the dating of Fland's worksMediaeval Studies 40 (1): 56-80. 1978.
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46From Guillelmi de Ockham, Summa logicae, Philotheus Boehner, Gedeon Gál and Stephanus Brown, ed., (“Guillelmi de Ockham Opera philosophica et theologica,” OPh I; St. Bonaventure, N.Y.: The Franciscan Institute, 1974), pp. 744–.
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33In 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
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36Ockham's Nominalist Metaphysics: Some Main ThemesIn The Cambridge Companion to Ockham, Cambridge University Press. 1999.
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86Walter Burley, from the Beginning of his Treatise on the Kinds of Suppositon (De suppositionibus)Topoi 16 (1): 95-102. 1997.(1) (p. 31) (1.1) “Some things that are said are said with complexity, and others are said without complexity.”3 Those that are said without complexity are, for example, ‘man’, ‘animal’. Those that are said with complexity are, for example, ‘A man runs’, ‘An animal runs’.4 (2) It is plain from this that the incomplex is part of the complex.
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36The manuscript Venice, Biblioteca Nazionale Marciana, Class XI n. 12, Zanetti Latini 301 (= 1576), contains on fols. 1r–24v a seemingly unique copy of a series of fifteen logical questions, ten on obligationes and the remaining five on insolubilia.1 The series on obligationes is untitled and unattributed in the manuscript, but the questions on insolubilia begin (fol. 18r11) “Incipiunt quaestiones super insolubilibus,” and are attributed at the end to a certain John of Wesel (fol. 24v41): “Ergo e…Read more
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15Lies, language, and logic in the late Middle Ages (edited book)Variorum Reprints. 1988.'This sentence is false' - is that true? The 'Liar paradox' embodied in those words exerted a particular fascination on the logicians of the Western later Middle Ages, and, along with similar 'insoluble' problems, forms the subject of the first group of articles in this volume. In the following parts Professor Spade turns to medieval semantic theory, views on the relationship between language and thought, and to a study of one particular genre of disputation, that known as 'obligationes'. The fo…Read more
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26How to Start and StopJournal of Philosophical Research 19 193-221. 1994.Mediaeval logicians often wrote about changes between contradictory states, for example a switch’s changing from being on to not being on. One of the questions discussed in these writings was whether at the moment the change occurs the changing thing is in the earlier or the later state. The present paper investigates the general setting for that question, and discusses the answer given by Walter Burley, an important early-fourteenth century author whose theory was a standard one. Burley’s theor…Read more
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Roger Swyneshed's Obligationes. Edition and commentsArchives d'Histoire Doctrinale et Littéraire du Moyen Âge 44. 1977.
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