We report on an unpublished and previously unknown manuscript of John von Neumann and contextualize it within the development of the theory of shock waves and detonations during the nineteenth and twentieth centuries. Von Neumann studies bombs comprising a primary explosive charge along with explosive booster material. His goal is to calculate the minimal amount of booster needed to create a sustainable detonation, presumably because booster material is often more expensive and more volatile. In service of this goal, he formulates (...) and analyzes a partial differential equation-based model describing a moving shock wave at the interface of detonated and undetonated material. We provide a complete transcription of von Neumann’s work and give our own accompanying explanations and analyses, including the correction of two small errors in his calculations. Today, detonations are typically modeled using a combination of experimental results and numerical simulations particular to the shape and materials of the explosive, as the complex three dimensional dynamics of detonations are analytically intractable. Although von Neumann’s manuscript will not revolutionize our modern understanding of detonations, the document is a valuable historical record of the state of hydrodynamics research during and after World War II. (shrink)

We investigate intuitionistic propositional modal logics in which a modal operator is equivalent to intuitionistic double negation. Whereas ¬¬ is divisible into two negations, is a single indivisible operator. We shall first consider an axiomatization of the Heyting propositional calculus H, with the connectives →,∧,∨ and ¬, extended with . This system will be called Hdn . Next, we shall consider an axiomatization of the fragment of H without ¬ extended with . This system will be called Hdn + . (...) We shall show that these systems are sound and complete with respect to specific classes of Kripke-style models with two accessibility relations, one intuitionistic and the other modal. This type of models is investigated in [2] and [3], and here we try to apply the techniques of these papers to an intuitionistic modal operator with a natural interpretation. The full results of our investigation will be published in [4] and [1]. (shrink)

Qu'est-ce que la philosophie? A cette question répondait Heidegger en 1955 par une autre question : qu'est-ce que l'être? Mais y a-t-il sens à répéter une énigme qui, à Athènes, revenait à demander : comment pense la pensée grecque? En 1991, Deleuze répond par une réponse de Nietzsche : c'est le pouvoir de " créer des concepts ". Et ce serait un privilège " européen ". Mais à quoi répond cette création conceptuelle? Ne trouve-t-elle pas ailleurs ce qui l'alimente et (...) qui la brûle? L'enquête commence par explorer ici le tout premier usage du mot philosophie, chez Héraclite. Et du terme philosophie, dans le Gorgias de Platon. Mais comment atteindre cette nappe narrative sous-jacente, voire l'histoire violente qui sont source et débat pour la philosophie? Il ne s'agit pas de passer en revue le magasin des idées, qui remplirait la philosophie. Mais de tenter, comme sous vide, de trouver cette liberté. Qui cherche à dire plus vite, plus dense que la narration. Sa tentative voyage en des langues multiples. Elle passe par la philosophie arabe des Andalous et par la philosophie de la Chine. Davantage, - elle serait elle-même ce voyage? Elle est l'apprentissage du mouvement qui permet toute transformation. "... Sortir l'archive dans le mouvement même de sa formation, comme un discours se mêlant au mouvement même, dans la ligne de ce que Faye a fait... " Michel Foucault. (shrink)

Contre l'effrayante puissance d'anéantissement de l'idéologie mise au service de la tyrannie, Kostas Papaïoannou défendit les droits de la pensée critique. Contemporain d'Hannah Arendt, proche de Raymond Aron et d'Octavio Paz, il décrivit les rouages du totalitarisme et éclaira la condition de l'homme moderne. Lire Papaïoannou, ce n'est pas seulement se plonger au coeur de la pensée de Hegel, de Marx, lire Papaïoannou, c'est aussi et surtout retrouver la source fraîche et brûlante de la Grèce antique, le chaos et (...) la vigueur d'une pensée extraordinairement créative. (shrink)

It is often said that Darwin’s study of nature drove him to atheism. Whereas this might be, in principle, possible, it does not seem to have actually been the case for him. Both in his autobiography, which was not intended to be published, and in his personal correspondence, Darwin consistently described himself as an agnostic. It is true that he underwent several fluctuations of belief during his life, but in the end, he never explicitly rejected the existence of God. What (...) is even more important is that the main shift he underwent during his life was conceptual, not emotional or religious. That was his shift from natural theology and a view of adaptation as perfect to natural selection and a view of adaptation as relative to the environment, something historian Dov Ospovat pointed out 40 years ago. In this chapter, I present the evidence from Darwin’s writings about his agnosticism and about his conceptual shift from the perfect adaptation of natural theology to the relative adaptation of natural selection. (shrink)

U ovom radu razmatraju se pravi ciljevi tzv. medjunarodne zajednice na Balkanu, pod kojom se zapravo podrazumevaju Sjedinjene Americke Drzave Kao jedina preostala super sila, i Evropska unija, u kojoj kljucnu ulogu imaju Francuska, Velika Britanija i Nemacka. Pisac polazi od uverenja da stvarne, a narocito dugorocne namere ovih sila treba prevashodno izvoditi iz onoga sto one cine, pa tek onda uzimali u obzir i ono sto se javno ili tajno govorilo ili nagovestavalo. Analizom veceg broja primera na Balkanu i (...) u drugim delovima sveta pisac dolazi do neocekivanog ishoda. Dok su se velike zapadne sile na recima zalagale za multietnicnost i ocuvanje multietnickih drzava, na delu su postupale upravo suprotno: ne samo sto su podsticale bujanje nacionalizma i separatizma, nego su i pospesile i priznale raspad triju evropskih federacija na 22 manje-vise nacionalne drzave. I dok su se na recima prividno zalagale za tzv. demokratizaciju, u praksi su ne samo podrzavale autoritarne rezime nego su i same na tlu Balkana demokratiju poistovetile s okupacijom. (shrink)

In three volumes, a distinguished group of scholars from a variety of disciplines in the natural and social sciences, the humanities and the arts contribute essays in honor of Robert S. Cohen, on the occasion of his 70th birthday. The range of the essays, as well as their originality, and their critical and historical depth, pay tribute to the extraordinary scope of Professor Cohen's intellectual interests, as a scientist-philosopher and a humanist, and also to his engagement in the world of (...) social and political practice. Science, Mind and Art, Volume III of Essays in honor of Robert S. Cohen focuses on issues in contemporary epistemology, aesthetics, and philosophy of mind as well as on the relations of science and human values in ethical and religious thought. It also has important new work in contemporary metaphysics, as well as in the history of philosophy, and on questions of multiculturalism in science education. Contributors include Paul Feyerabend, Adolf Grünbaum, Joseph Margolis, Joëlle Proust, Erazim Kohak, Elie Wiesel, Miriam Bienenstock, and John Silber, among others. (shrink)

Science appeared in modern Greece in the first decades after its establishment as a sovereign state in 1828. The University of Athens, the Royal Observatory, the Botanical Garden, and the Natural History Museum were quickly established as spaces of scientific activity. Greek scientists were enthusiastic participants in the emerging Greek public sphere, often not only as science experts, but also as poets, intellectuals and political personae. In a space whose cultural, intellectual and historical boundaries were still being negotiated, the choice (...) of language was not a given but a pressing, sensitive national desideratum. This article examines how Greek scientists used languages to communicate with their peers and with their publics, how they handled terminology and nomenclature, and how the issues surrounding the Greek language in particular affected their practice as scientists. The article aims to show that, in nineteenth-century Greece, languages were not passive, neutral vehicles of communication, but rather integral components of the practice of science. (shrink)

This article examines how new types of performance appraisal reconfigure everyday personal relationships at work. These systems deploy smartphone technologies to be used continuously by individuals to rate each other. Our aim is to show, in concrete terms, how these practices claim to configure a democratic space where individuals are liberated to express their views about each other’s work. On the contrary, we argue that by being placed in continuous confrontation with each other’s ratings, the genuine space for democratic contestation, (...) for the establishment of a genuine community, as well as for critique and dissent is—paradoxically—narrowed down. The first section of this article explores the context in which managerialism has become consolidated at the centre of neo-liberal politics in a dialogue with some of Mouffe’s and Rancière’s arguments. We use Rancière’s concept of “policing” to understand how managerial techniques subvert genuine democratic spaces, modes of participation and expression. Using performance appraisal systems as an example, the second part of the article provides a critical investigation which shows how managerialism intervenes at the very roots of possible democratic engagement and undermines dissent in subtle ways. (shrink)

This paper analyzes the ongoing university reform in Russia by underlining historical roots and peculiarities of its system of higher education. It is pointed out that the Soviet model of economy, political and ideological bias deeply impacted the university system and enforced its estrangement from foreign universities. A limited number of the best Soviet higher education institutions which provided a military-oriented education and fundamental research were re-casted along the so called “PhysTech” system after the end of the WWII. As a (...) result of this system, higher education and R&D in Russia is not presently competitive in the educational international market. Closing the gap between Russian universities and the “global university” approach and raising university competitiveness are the main objectives of the current reform in science and education. As universities are considered core actors of knowledge economy, a new set of federal and national research universities was created. However, reform faces numerous conceptual and institutional obstacles, risks and constraints are significant, and positive outcomes elusive. (shrink)

The widely known but also somewhat esoteric Mach principle envisages a fully relational formulation of physical theories without any reference to a concept of ‘absolute space’. When applied to classical mechanics, under the guise of an extended symmetry group, this procedure is known to lead to an equation of motion with inertial-like forces that are sourced by the mass distribution of the system itself. In this paper we follow a similar procedure and reformulate the Schrödinger equation of non-relativistic quantum mechanics (...) in a fully Machian way. Just like its classical counterpart, the resulting quantum theory is fully relational in the positions and momenta of the bodies comprising a given physical system, leaving no room for the notion of absolute space. (shrink)

How happy it is to recall Imre Lakatos. Now, fifteen years after his death, his intelligence, wit, generosity are vivid. In the Preface to the book of Essays in Memory of Imre Lakatos, the editors wrote:... Lakatos was a man in search of rationality in all of its forms. He thought he had found it in the historical development of scientific knowledge, yet he also saw rationality endangered everywhere. To honor Lakatos is to honor his sharp and aggressive criticism as (...) well as his humane warmth and his quick wit. He was a person to love and to struggle with. The book before us carries old and new friends of that Lakatosian spirit further into the issues which he wanted to investigate. That the new friends include a dozen scientific, historical and philosophical scholars from Greece would have pleased Lakatos very much, and with an essay from China, he would have smiled all the more. But the key lies in the quality of these papers, and in the imaginative organization of the conference at Thessaloniki in summer 1986 which worked so well. (shrink)

This paper presents an emerging aspect of intentionality through recent Artificial Intelligence (AI) developments in art and design. Our main thesis is that, if we focus just on the outcome of the artistic process, the intentionality of the artist does not have any relevance. Intention is measured as a result of actions regardless of whether they are human-based or not as long as there is an esthetical value intersubjectively acknowledged. In other words, what matters is the ‘intentio’ embedded in the (...) work of art (the output) rather than the ‘intendere’ (the process). By considering the former aspect, intentionality becomes free of human intervention, therefore 'unintentional'. This thesis is supported through a range of examples related to AI in general and AI art in particular. However, in the case of a self-driving vehicle, the macro-goal of the system is fixed by humans, even though the AI system itself will take care of decomposing the macro-goal into a set of micro-goals and take the corresponding decisions. In the case of art, the system does not need to have any exterior goal to the extent that art is pure freedom of expression, as many philosophers have acknowledged. In this sense, the decisions of any AI system generating art or design are independent of humans and must be judged only on the ground of the final outcome. A work of art will be judged ‘artistic’ to the extent that humans will recognize an artistic intent in the work itself. In particular, the introduction of random processes makes an AI-generated artwork fully independent of human creativity. (shrink)

LetSbe the group of finitely supported permutations of a countably infinite set. Let$K[S]$be the group algebra ofSover a fieldKof characteristic 0. According to a theorem of Formanek and Lawrence,$K[S]$satisfies the ascending chain condition for two-sided ideals. We study the reverse mathematics of this theorem, proving its equivalence over$RC{A_0}$ to the statement that${\omega ^\omega }$is well ordered. Our equivalence proof proceeds via the statement that the Young diagrams form a well partial ordering.

The article deals with the legal, political, philosophical and religious dimensions of Socrates’ trial and execution. It considers the issue in five separate aspects: 1) the validity of charging Socrates with impiety and corrupting the youth of the Athens; 2) the legal basis of the philosopher’s indictment; 3) the then manner of conducting a legal trial in the Athens; 4) the extent to which Socrates’ conviction can ultimately be characterized as unjust and — finally — 5) the cultural ramifications of (...) the philosopher’s trial and execution. (shrink)

The romance Imberios and Margarona does not belong to the Renaissance. It does not acknowledge many of the issues which become current in the age of Humanism: the value of individual consciousness, to name but one, will wait until the seventeenth century to be explored in Greek literature. And yet, the vintage of Imberios is hybrid: being late medieval and modelled after a popular European prototype, it slants ever so gently towards what will later be fully fledged humanistic sensibilities.

The romance Imberios and Margarona does not belong to the Renaissance. It does not acknowledge many of the issues which become current in the age of Humanism: the value of individual consciousness, to name but one, will wait until the seventeenth century to be explored in Greek literature. And yet, the vintage of Imberios is hybrid: being late medieval and modelled after a popular European prototype, it slants ever so gently towards what will later be fully fledged humanistic sensibilities.

What was science for the Orthodox Greek theologian of the nineteenth century? How did it feature in his (theologians were all men at the time) own work? This article is an attempt to describe the science and religion interactions by placing Greek Orthodox theologians of the nineteenth century in the center of the historical narrative, rather than treat them as occasional deuteragonists in the scientists’ historiography. The picture that emerges is far more complicated than one of antagonism, indifference, conflict, or (...) coexistence. Greek theologians saw themselves as scientists and treated theology as a positive, rational science. They developed strategies to delineate their disciplinary borders and safeguard their identity as expert scholars by harnessing their university and academic credentials. For that reason, they had to invoke famous German and other Western theologians, while ensuring that they were seen as true defenders of Orthodox Christianity. The idea of science was an integral part of this achievement. (shrink)