In his book Gabriele Lolli discusses the notion of proof, which is, according to him, the most important and at the same time the least studied aspect of mathematics. According to Lolli, a theorem is a conditional sentence of the form ‘if T then A’ such that A is a logical consequence of T, where A is a sentence and T is a sentence or a conjunction or set of sentences. Verifying that A is a consequence of T generally (...) involves considering infinitely many interpretations; so it is something which is impossible to do in finite terms. Proofs may serve as ‘shortcuts’ in this respect. A proof is defined by Lolli as any finite argument certifying that A is a consequence of T. A proof is a shortcut in the sense that it spares us considering infinitely many interpretations.The reason for such a very general definition of proof is Lolli's strong belief that mathematics is not a rigid system of explicit rules, but rather a set of tools; as a consequence, there is no prescription as to what a proof should or should not be. Actually, mathematics is historically situated and not timeless, and the history of mathematics is the …. (shrink)
French existentialist philosopher Gabriel Marcel is one of the most influential thinkers of the twentieth century. The central themes of his philosophy, which are developed with a blend of realism, concreteness, and common sense, continue to be relevant for the plight of humanity in the twentieth-first century. Marcel's thought emphasizes: the attempt to safeguard the dignity and integrity of the human person by emphasizing the inadequacy of the materialistic life and the unavoidable human need for transcendence; the inability of philosophy (...) to capture the profundity and depth of key human experiences, and so the need to find a deeper kind of reflection; the importance of the experience of inter-subjectivity, which Marcel believes is at the root of human fulfillment, and which also finds expression in the transcendent dimension of human experience, a dimension that cannot be denied without loss, and that often gives meaning to our most profound experiences. Marcel is also one of the few contemporary thinkers who manages to do justice to the subjectivity and individuality of the human person, while avoiding the relativism and skepticism that has tended to accompany these notions, and that has plagued contemporary philosophy after Heidegger. He makes an unwavering effort to challenge the moral relativism and spiritual nihilism of his French rival, Jean-Paul Sartre, and of other representative existentialist philosophers. All of Marcel's important ideas are introduced here, ranging from his unique conception of philosophy; to his original approach to epistemology and the nature of knowledge; to his view on the nature of the human person, including the idea of being-in-a-situation and the importance of the "context" that the subject lives in for the subject's ideas and experiences; to his approach to religious themes, including the issues of the rationality of religious belief, the question of God's existence, and our longing for the transcendent; and his "concrete approaches" of fidelity, hope, love and faith. There are also selections in which he discusses some of his misgivings about the direction of contemporary culture, especially the effects of technology. Brendan Sweetman is Professor of Philosophy at Rockhurst University, Kansas City, MO. He has published over seventy articles and reviews. He is president of the Gabriel Marcel Society. (shrink)
Hans-Georg GADAMER, Hermeneutische Entwürfe. Vorträge und Aufsätze ; Pascal MICHON, Poétique d’une anti-anthropologie: l’herméneutique deGadamer ; Robert J. DOSTAL, The Cambridge Companion to Gadamer ; Denis SERON, Le problème de la métaphysique. Recherches sur l’interprétation heideggerienne de Platon et d’Aristote ; Henry MALDINEY, Ouvrir le rien. L’art nu ; Dominique JANICAUD, Heidegger en France, I. Récit; II. Entretiens ; Maurice MERLEAU-PONTY, Fenomenologia percepţiei ; Trish GLAZEBROOK, Heidegger’s Philosophy of Science ; Richard WOLIN, Heidegger’s Children. Hannah Arendt, Karl Löwith, Hans Jonas (...) and Herbert Marcuse ; Ivo DEGENNARO, Logos – Heidegger liest Heraklit ; O. K. WIEGAND, R. J. DOSTAL, L. EMBREE, J. KOCKELMANS and J. N. MOHANTY, Phenomenology on Kant, German Idealism, Hermeneutics and Logic ; James FAULCONER and Mark WRATHALL, Appropriating Heidegger. (shrink)
GJ: We've talked a lot about critics who are hostile toward you. Do you ever feel the need to make a stand against those who are favourably inclined toward your plays but whose comments seem to you to be stupid? EI: Well, for better or worse, that's what I've always done: I wrote Notes and Counter-Notes, had discussions with Claude Bonnefoy, I've written articles; and in each case what I've said, in short, is that critics who gave me their approval, (...) did so because they misunderstood me and were mistaken about my intentions. GJ: Finally, are you at all bitter about the critics? EI: No. Many have become good friends of mine. But it is a bit disheartening; when I began, a critic who, shall we say, is on the Right, a conservative critic who is very well-known and has since become a friend of mine, called me an impostor, a fraud, and a dummy; and now, twenty-five years later, the Leftists still call me an impostor, a fraud, and a dummy. GJ: But less often? EI: Well, I suppose so. Eugene Ionesco, renowned by playwright , recently was awarded the International Writer's Prize by the Welsh Arts Council. While in Wales, he was interviewed by Gabriel Jacobs, lecturer in French at University College of Swansea; the interview represents Ionesco's most concerted attempt yet to deal with his critics. He is completing a book on the subject which Gabriel Jacobs will translate into English. (shrink)
This book identifies a need to move beyond discussions of ownership, power and control in favour of exploring new kinds of partnerships between museums and the peoples or countries of origin, partnerships based on equitability and reconciliation.
State Violence, Coalitions, Subjects After a consideration of the reception of her work in France , Judith Butler assesses the political contribution of queer movements and minority struggles. She addresses the need for the left to reappropriate the forthright critique of the State and its violence and to examine the way minorities are produced. To do so, her analysis starts from the question of immigrant persons. She highlights the issues and the difficulties which are involved, if there is to be (...) a productive critique of the State, the aim of which is to contest it. As part of a dynamic political perspective, she proposes the creation of coalitions. She outlines the main lines of such a coalition, its dynamics and singularities, its articulation with the subject, but also its limits. In conclusion, she examines the issue of revolution and her relation to Marxist thought, indicating the outlines of her current thinking. (shrink)
Luca M. Possati, Jean Grondin, Paul Ricoeur ; Aurore Dumont, François Dosse et Catherine Goldenstein, Paul Ricoeur: penser la mémoire ; Paul-Gabriel Sandu, Gert-Jan van der Heiden, The Truth of Language. Heidegger, Ricoeur and Derrida on Disclosure and Displacement ; Paul Marinescu, Marc-Antoine Vallée, Gadamer et Ricoeur. La conception herméneutiquedu langage ; Witold Płotka, Saulius Geniusas, Th e Origins of the Horizon in Husserl’s Phenomenology ; Delia Popa, Annabelle Dufourcq, La dimension imaginaire du réel dans la philosophie de Husserl ; (...) Maria GyemantDenis Seron, Ce que voir veut dire. Essai sur la perception ; Christian Ferencz-Flatz, Hans Friesen, Christian Lotz, Jakob Meier, Markus Wolf, Ding und Verdinglichung. Technik- und Sozialphilosophie nach Heidegger und der Kritischen Th eorie ; Bogdan MincăLarisa Cercel, John Stanley, Unterwegs zu einer hermeneutischen Übersetzungswissenschaft. Radegundis Stolze zu ihrem 60. Geburtstag ; Denisa Butnaru Johann Michel, Sociologie du soi. Essai d’herméneutique appliquée ; Ovidiu Stanciu, Jan Patočka, Aristote, ses devanciers, ses successeurs. Trad. fr. Erika Abrams ; Mădălina Diaconu, Emmanuel Alloa, Das durchscheinende Bild. Konturen einer medialen, Phänomenologie. (shrink)
A criticism of a recent article published in this journal, claiming to have reached a classical description of the Stern-Gerlach phenomenon, is presented here. The author of the article, among other mistakes, wrongly writes the total energy of each silver atom and, moreover, presents a nonsensical equation, from which his results and the conclusion of his article are derived.
We present a description of the Stern–Gerlach type experiments using only the concepts of classical electrodynamics and the Newton’s equations of motion. The quantization of the projections of the spin (or the projections of the magnetic dipole) is not introduced in our calculations. The main characteristic of our approach is a quantitative analysis of the motion of the magnetic atoms at the entrance of the magnetic field region. This study reveals a mechanism which modifies continuously the orientation of the (...) magnetic dipole of the atom in a very short time interval, at the entrance of the magnetic field region. The mechanism is based on the conservation of the total energy associated with a magnetic dipole which moves in a non uniform magnetic field generated by an electromagnet. A detailed quantitative comparison with the (1922) Stern–Gerlach experiment and the didactical (1967) experiment by J.R. Zacharias is presented. We conclude, contrary to the original Stern–Gerlach statement, that the classical explanations are not ruled out by the experimental data. (shrink)