At the beginning of his influential De Nominum Analogia, Thomas de Vio Cajetan mentions three mistaken positions on analogy. He does not attach names to these positions, but each one was held by distinguished Thomists of the fourteenth and fifteenth centuries. Furthermore, their proponents were responding to the same set of challenges from John Duns Scotus that set the agenda for the De Nominum Analogia. In this paper, I would like to do something that Cajetan did not do, and that (...) is, directly consider the merits of the first position in his list of mistaken accounts of analogy; namely, the position that analogy is constituted by disjunction. More specifically, this paper investigates the polemical use for which Hervaeus Natalis deployed analogy of disjunction; the reply of John Duns Scotus; and the implications of this back and forth for understanding the Thomist-Scotist dispute over the concept of being. (shrink)

The mental representation of one’s own body does not necessarily correspond to the physical body. For instance, a dissociation between perceived and actual reach-ability has been shown, that is, individuals perceive that they can reach objects that are out of grasp. We presented participants with 3D pictures of objects located at four different distances, namely near-reaching space, actual-reaching space, perceived-reaching space and non-reaching space. Immediately after they were presented with function, manipulation, observation or pointing verbs and were required to judge (...) if the verb was compatible with the object.Participants were faster with function and manipulation verbs than with observation and pointing verbs. Strikingly, with both function and manipulation verbs participants were faster when objects were presented in actual than the perceived reaching space. These findings suggest that our knowledge of the world is implicitly built online through behaviour, and is not necessarily reflected in explicit estimates or conscious representations. (shrink)

This paper gives two complete and elementary proofs that if the speed of light over closed paths has a universal value c, then it is possible to synchronize clocks in such a way that the one-way speed of light is c. The first proof is an elementary version of a recent proof. The second provides high precision experimental evidence that it is possible to synchronize clocks in such a way that the one-way speed of light has a universal value. We (...) also discuss an old incomplete proof by Weyl which is important from an historical perspective. (shrink)

This special issue re-evaluates the 1950s as a period of transnationalism in ideas and political practices, offering innovative insights into political history and political ideas. Without setting the national and transnational spheres against each other, the issue argues that the dialectics between the two was a defining element of Europe in this period. The articles explore transnational cooperation and exchanges among intellectuals, politicians and trade unionists, showing how they were changing in their interaction. The editorial sets out from the research (...) on the postwar configuration of Europe based on the retake of the nation state, combining it with new research of transnational history and putting out some methodological innovations. The editorial also highlights some significant themes across the articles: the central role of translation and localisation, the interaction with local interests and disputes, the Cold War, the acceleration of European integration, the rise of the Third World, the tensions between hope and fear or between nihilism and rebirth of Europe, the centrality of science. (shrink)

Per uscire dalle aporie delle proprie conseguenze, la scienza deve vedere riconosciuto l'atto come uno dei propri principi fondamentali (accanto all'ente e alla parola). Scienza è, infatti, mettere in relazione le cose (la "natura") con delle leggi matematiche (vale a dire con dei simboli e dei concetti). Ma mettere in relazione è un atto. Sicché, la scienza si fonda su tre principi (ente, parola, atto) e sui corrispettivi campi filosofici (ontologia, logica, etica). Tenere conto di quest'ambito triadico serve a mostrare (...) che l'epistemologia non è un sapere neutro e descrittivo, ma è un prendere partito: al tempo stesso dal punto di vista etico, politico, morale e giuridico. (shrink)

The strongly innovative theory of whole-parts relations outlined by Husserl in his Third logical Investigation—to which he attributed a basic value for his entire phenomenology—has recently attracted a renewed interest. Although many important issues have been clarified (especially by Kit Fine) the subject seems still worth being revisited. To this aim Husserlian universes are introduced. These are lower bounded distributive lattices endowed with a unary operation of defect and a binary relation of isogeneity. Husserl's contents are identified with nonzero elements (...) of a Husserlian universe and the dependence relations among contents are defined and studied starting from the idea that the defect of xis what x needs in order to ‘exist’ i.e., in order to be ‘closed’ with respect to the closure operation defined as the sup of x and its defect. It turns out that there are (at least) eight dependence relations which are worth to be considered. Many other questions concerning the world of contents (among them the proofs of the famous Husserl's Sätze) may now be discussed and clarified. Then the theory of species and genera is developed. Ultimate species (for short: species) are identified with equivalence classes of contents modulo isogeneity, and species in general (for short: genera) are identified with arbitrary unions of species. On the basis of the relation obtaining among two contents when they are isogeneous to two contents the first of which is a part of the second it becomes possible to develop a rather satisfying interpretation of Husserl's theory of the dependencies among species and genera and of the material a priori laws. By strengthening the notion of Husserlian universe into the notion of rigid Husserlian universe, the theory of species and genera obtains a stronger version. Three models of the theory are exhibited. The first one, suggested by combinatorial-topological considerations, identifies contents with finite non-empty sets of natural numbers; the second one identifies contents with non-empty sets of formulas of a formal language; the third one (not totally ‘rigid’) identifies contents with positive integers. (shrink)

This book is not a conventional history of mathematics as such, a museum of documents and scientific curiosities. Instead, it identifies this vital science with the thought of those who constructed it and in its relation to the changing cultural context in which it evolved. Particular emphasis is placed on the philosophic and logical systems, from Aristotle onward, that provide the basis for the fusion of mathematics and logic in contemporary thought. Ettore Carruccio covers the evolution of mathematics from (...) the most ancient times to our own day. In simple and non-technical language, he observes the changes that have taken place in the conception of rational theory, until we reach the lively, delicate and often disconcerting problems of modern logical analysis. The book contains an unusual wealth of detail (including specimen demonstrations) on such subjects as the critique of Euclid's fifth postulate, the rise of non-Euclidean geometry, the introduction of theories of infinite sets, the construction of abstract geometry, and-in a notably intelligible discussion-the development of modern symbolic logic and meta-mathematics. Scientific problems in general and mathematical problems in particular show their full meaning only when they are considered in the light of their own history. This book accordingly takes the reader to the heart of mathematical questions, in a way that teacher, student and layman alike will find absorbing and illuminating. The history of mathematics is a field that continues to fascinate people interested in the course of creativity, and logical inference quite part and in addition to those with direct mathematical interests. Ettore Carruccio, who until his retirement was professor of philosophy at the University of Turin. He has made many contributions to mathematical and logical theory as well as to the history of the science. Isabel Quigly was the literary editor of The Tablet for many years. (shrink)

This book is focused on the first three parts of Bolzano's Theory of Science and introduces a more systematic reconsideration of Bolzano's logical thought. In undertaking this task, the book is intended as an exploration, not so much of the more specifically discursive aspects of Bolzano's logical thought - already amply studied - as much as on identifying the singularly coherent and systematic nature of the logic presented in Bolzano's work.

This article considers the attempt by a prominent fifteenth-century follower of Thomas Aquinas, Dominic of Flanders, to address John Duns Scotus’ most famous argument for the univocity of being. According to Scotus, the intellect must have a concept of being that is univocal to substantial and accidental being, and to finite and infinite being, on the grounds that an intellect cannot be both certain and doubtful through the same concept, but an intellect can be certain that something is a being (...) while doubting whether it is a substance or accident, finite or infinite. The article shows how Flandrensis’ reply in defence of analogy of being hinges on a more fundamental disagreement with Scotus over the division of the logically one. It also shows how Flandrensis’ answer to this question commits him to a position on the unity of the concept of being that lies between the positions of Scotus and of Flandrensis’ earlier Thomistic sources. (shrink)

Thomas de Vio Cajetan produced a highly influential Thomistic treatise on analogy entitled De nominum analogia. The merits of this work have been contested since the sixteenth century. Notable twentieth-century Thomists who adopted many of the teachings of De nominum analogia include Jacques Maritain and Yves Simon. Joshua Hochschild’s The Semantics of Analogy highlighted the significance of chapter ten, where Cajetan applies his theory to resolve the problem of demonstrations that use analogous terms, with the explicit purpose of addressing a (...) serious challenge from Scotists regarding the use of analogy in metaphysics. This paper examines the criticism of Cajetan’s way of using analogous terms in demonstrations by the seventeenth-century Franciscan Scotist Bartolomeo Mastri. It shows how the Thomist differs from the Scotist and analyzes these rival positions. (shrink)

Abstractabstract:Aristotle identifies four modes of unity: numerical, specific, generic, and proportional or analogous. Recent scholarship has renewed the Renaissance and early Modern Thomist critique that John Duns Scotus's (d. 1308) doctrine of the univocity of being is based on a failure to appreciate proportional unity. This paper attempts to fill a gap in the copious literature on Scotus's doctrine of the univocity of being by presenting and offering an analysis of the texts where Scotus addresses the topic of proportional or (...) analogous unity. The paper argues that Scotus's early and mature works consistently reject the notion that an analogous or proportional unity can serve as the foundation for greater than equivocal unity between concepts, and that Scotus's developed position represents an alternative to Aristotle's division of unity into the modes of numerical, specific, generic, and analogous. Nonetheless, Scotus's early remarks on an analogous unity that is mind-independent provide both an internal justification for the dispute that ensues between Thomists and Scotists over whether a single concept can signify analogously—a dispute that features such distinguished participants as Thomas de Vio Cajetan (1469–1534) and Bartolomaeus Mastrius (1602–73)—and an avenue for further investigation into the thought of the Subtle Doctor. (shrink)

La logique cartésienne est introuvable parce qu’on a cherché une logique qui n’existe pas, c’est-à-dire une logique classique sur le modèle des manuels de la tradition réformée. La puissance transgressive de Descartes, même dans ce domaine, a été radicale : il a bafoué l’Arbre de Porphyre, vidé de sens la théorie des catégories, montré l’inutilité du syllogisme pour la recherche scientifique. Sans efficacité, à son avis, fut le renouveau d’une logique fondée sur des normes préconstituées. Il se « limite » (...) pourtant à suggérer, sur le modèle des procédés mathématiques, une attitude de pensée centrée sur l’intuitus et dont les relations sont garanties par les notions de « série » et de respectus. La transgression cartésienne a été si bouleversante que « Descartes logicien » devient un auteur maudit et l’attitude qu’il aurait voulu inspirer n’a connu aucune fortune, à telle enseigne que même la Logique de Port-Royal qu’on voudrait cartésienne consacre un grand espace à la syllogistique.Undiscoverable is the Cartesian logic, because scholars looked for a logic that does not exist, i.e. a classical logic after the model of traditional, more or less reformed, manuals. Descartes’ transgressive power was radical even in this domain : he scorned Phorphyrius Tree, voided the theory of categories of all meaning, showed the uselessness of syllogism for scientific research. Just as totally ineffective was, in his view, the renewal of a logic founded on preconstituted norms. He therefore « limits » himself to suggest, after the model of mathematical procedures, an attitude of thought centered on intuitus and whose relationships are guaranteed by the notions of « series » and respectus. The Cartesian transgression turned out to be so upsetting that « Descartes the logician » became a wicked author and the attitude he had meant to inspire had no fortune whatsoever, to such a point that even the Logic of Port-Royal – purportedly Cartesian – leaves much room to syllogistics. (shrink)

Dapprima due indizi. Il primo: si può affermare che le due domande “Come si chiama il libro che stai leggendo?” e “Come si intitola il libro che stai leggendo?” siano immediatamente comprensibili ed equivalenti. Difficilmente però un parlante sente come equivalenti le domande “Come si chiama quell’edificio?” e “Come si intitola quell’edificio?”. Mentre la prima domanda è chiarissima, la seconda susciterà un’ulteriore domanda di chiarimento: “Che cosa intendi per titolo dell’edificio?”. Per un...

By analysing the policies and ideas of German social democracy, the British Labour Party and the Italian Communist Party, this article explores their attitude towards science and their imagination of the future in the 1950s. Deeply different, social democrats and communists shared a positivist attitude in favour of scientific progress and high modernity. This painted their attitude towards the space race, peaceful nuclear power and automation. Science was conceived as a neutral power to be supported, but it required political guidance (...) to harness it and turned it into social progress. Thus, their disagreement was over the political implications for capitalist societies experiencing growing prosperity. Science was also a powerful rhetorical argument to castigate the conservatives for failing the nation and allowing it to decline and fall behind its competitors. The article combines comparison and transnational history, innovating the latter by introducing the concepts of horizontal, vertical and antagonistic transnationalism. (shrink)