What role does Scotus‘s understanding of univocity play in Cajetan‘s development of a theory of analogy? In this paper I examine three relevant texts from Cajetan (question 3 of his commentary on Aquinas‘s De Ente et Essentia, his treatise De Nominum Analogia, and his commentary on question 13, article 5 of Aquinas‘s Summa Theologiae) in which Cajetan articulates his understanding of analogy at least in part through dialectical engagement with Scotus‘s arguments about univocity.

The influence of Cajetan’s De Nominum Analogia is due largely to its first three chapters, which introduce Cajetan’s three modes of analogy: analogy of inequality, analogy of attribution, and analogy of proportionality. Interpreters typically ignore the final eight chapters, which describe further features of analogy of proportionality. This article explains this neglect as a symptom of a failure to appreciate Cajetan’s particular semantic concerns, taken independently from the question of systematizing the thought of Aquinas. After an exegesis (...) of the neglected chapters, which describe the semantics of analogy through the three levels of cognition (simple apprehension, composition and division, and discursive reasoning), the article concludes with observations about the relationship between Cajetan and Aquinas and the philosophical and historical signifi cance of Cajetan’s approach to the semantics of analogy. (shrink)

Cajetan’s analogy theory is usually evaluated in terms of its fidelity to the teachings of Aquinas. But what if Cajetan was trying to answer questions Aquinas himself did not raise, and so could not help to answer? Cajetan’s De Nominum Analogia can be interpreted as intending to solve a particular semantic problem: to characterize the unity of the analogical concept, so as to defend the possibility of a non-univocal term’s mediating syllogistic reasoning. Aquinas offers various semantic characterizations (...) of analogy, saying it involves, for instance: signification per prius et posterius; or a ratio propria which is only found in one analogate; or diverse modi significandi with a common res significata. Examined in turn, it is clear that none of Aquinas’s rules for analogy solve the semantic problem described. Cajetan thus cannot be reasonably expected to have intended his analogy treatise primarily as an interpretation or systematization of Aquinas’s teaching on analogy. (shrink)

Cajetan's treatment of analogy in De Nominum Analogia is well known as the most influential and sophisticated theory of a central issue in Thomistic philosophy. The late twentieth century saw that theory subject to a family of criticisms. If the critics are correct, Cajetan's analogy theory is also significant historically for exposing weaknesses latent in medieval semantic assumptions. According to the critics, the Aristotelian assumptions that words signify by means of discrete “concepts,” and that the meaning of propositions (...) depends on the significations of its component terms, cannot do justice to the complexity, variety, and flexibility of actual human discourse; in De Nominum Analogia they see the elegant structure of classical semantics collapsing under the pressure of analogical language. In this article, I examine these criticisms of Cajetan's analogy theory, and argue that, in light of both Cajetan's semantic principles and his hermeneutic practice, they fall short. The conclusion not only implies a defense of Cajetan's project, but clarifies the general philosophical alternatives available within the traditional Aristotelian semantic framework. (shrink)

Spanish translation of Cajetan’s commentary on quaestiones 22 and 116 of the first part of the 'Summa'. The translator precedes the text of Cajetan with a broad introduction in which he compares the views of the author with the interpretation of the same problems by Báñez in the context of the 'De Auxiliis' controversy. According to the translator, Báñez would have been more faithful to the thought of Saint Thomas than Cajetan. However, the core of the contribution (...) of this great commentator will also be assumed by Báñez; it was so important for him that he implicitly quoted it in his last words. (shrink)

[Encyclopedia entry] Born in Italy in 1225, and despite a relatively short career that ended around 50 years later in 1274, Thomas Aquinas went on to become one of the most influential medieval thinkers on political and legal questions. Aquinas was educated at both Cologne and Paris, later taking up (after some controversy) a chair as regent master in theology at the University of Paris, where he taught during two separate periods (1256-1259, 1269-1272). In the intermediate period he helped establish (...) a studium for his Order in Rome, beginning work on the Summa Theologiae, the masterwork for which he is still well-known. Subsequent to an experience (traditionally, a vision) Aquinas had on the feast of St. Nicholas in 1273, Aquinas intentionally refrained from further work on that text, so that it remained incomplete at the time of his death a year later in 1274. Apart from his own contributions, the Thomistic school – including followers within and without the Dominican Order to which Aquinas belonged – has had profound and far-reaching influence upon the history of legal thought in the West. Many of the classical developments of Thomistic thought are written as commentaries on the Summa Theologiae (hereafter, ST), including the works of Tomasso de Vio (Cajetan) and those of Domingo Banez, Francisco de Vitoria, Bartholome de las Casas, and the other highly influential members of the School of Salamanca who are noteworthy for developing Aquinas’ political and legal thought in the 16th century. Specifically, the ways in which Aquinas synthesized classical political and legal themes around the law, morality, and the common good provided a touchstone for what has come to be called ‘natural law jurisprudence.’ Natural law thinkers, in short, appeal to objective facts about what is good for human beings, and the social or political nature of the kind of creatures that we are, as a standard against which we measure the legal and social institutions created by human institutions. What is crucial here is that facts about human beings as social animals constitute reasons for individuals and groups to act or be structured in certain ways, such that ‘nature’ is the proper source for jurisprudential and political principles. (shrink)

This article identifies and formalizes the logical features of analogous terms that justify their use in deduction. After a survey of doctrines in Aristotle, Aquinas, and Cajetan, the criteria of “analogy of proper proportionality” are symbolized in first-order predicate logic. A common genus justifies use of a common term, but does not provide the inferential link required for deduction. Rather, the respective differentiae foster this link through their identical proportion. A natural-language argument by analogy is formalized so as to (...) exhibit these criteria, thereby showing the validity of analogical deduction. (shrink)

This paper focuses on the early sixteenth-century epistemic logic developed by John Mair’s circle and discusses iterated epistemic modalities, epistemic closure and Bradwardinian semantics related to the logic of epistemic statements. These topics are addressed as part of setting up and solving epistemic sophisms based on traditional scenarios which can be traced back to fourteenth-century British epistemic logic. While the ultimate source for the debate appears to be the second chapter of William Heytesbury’s Regule solvendi sophismata, the immediate source is (...) the Italian editorial, commentarial and philosophical tradition, notably Paul of Venice and Cajetan of Thiene. (shrink)

The deductive validity of arguments from analogy is formally demonstrable. After a brief survey of the historical development of doctrines relevant to this claim the present article analyzes the “analogy of proper proportionality”, which meets two requirements of valid deduction. First, the referents of analogues by proportionality must belong to a common genus. Here it must be cautioned, however, that the common genus does not constitute the basis of the deductive inference. Rather, it is a prerequisite for the second and (...) decisive requirement, that the different logical content to which an analogous middle term corresponds must exhibit the same proportional relation to this common genus. In Section II I translate a natural language argument with such an analogous middle term into the language of classical first-order predicate calculus, and show that its conclusion follows from its premises with the force of deductive necessity. The rule of inference justifying the analogical entailment of the conclusion from the premises functions much like the familiar modus ponens rule, and could be called “modus ponens analogice”. The validity of this rule ought to be judged on the same basis as that of the traditional modus ponens rule – immediate logical intuition. The present article endeavors to facilitate this logical intuition by making the logical structure of inference by analogy formally explicit. (shrink)

On the face of it, Locke rejects the scholastics' main tool for making sense of talk of God, namely, analogy. Instead, Locke claims that we generate an idea of God by 'enlarging' our ideas of some attributes (such as knowledge) with the idea of infinity. Through an analysis of Locke's idea of infinity, I argue that he is in fact not so distant from the scholastics and in particular must rely on analogy of inequality.

« En écrivant son Traité de l’Interprétation, Aristote a trempé sa plume à l’encre de son esprit ! » L’antique remarque de Cassiodore vaut encore aujourd’hui tant la matière étudiée est complexe et le style ramassé. Aristote démonte les mécanismes du langage philosophique, aux confins de la linguistique et de la métaphysique. Il offre à cette occasion des développements fondateurs sur la formulation de la vérité, les règles de mise en contradiction, les propositions universelles, la contingence des jugements sur le (...) futur, ou encore les redoutables énonciations modales. S’appuyant sur ses prédécesseurs, Thomas d’Aquin en rédige un commentaire hautement structuré, reconnu comme l’un des plus explicites. Demeuré cependant inachevé, il est complété par Thomas de Vio, dit Cajetan, un des premiers grands thomistes et maître logicien. C’est de l’ensemble de ces deux parties de commentaires que nous proposons la traduction ; la seconde pour la première fois en langue française. (shrink)