This contributed volume is the result of a July 2010 workshop at the University of Wuppertal Interdisciplinary Centre for Science and Technology Studies which brought together world-wide experts from physics, philosophy and history, in order to address a set of questions first posed in the 1950s: How do we compare spacetime theories? How do we judge, objectively, which is the “best” theory? Is there even a unique answer to this question? -/- The goal of the workshop, and of this book, (...) is to contribute to the development of a meta-theory of spacetime theories. Such a meta-theory would reveal insights about specific spacetime theories by distilling their essential similarities and differences, deliver a framework for a class of theories that could be helpful as a blueprint to build other meta-theories, and provide a higher-level viewpoint for judging which theory most accurately describes nature. But rather than drawing a map in broad strokes, the focus is on particularly rich regions in the “space of spacetime theories.” -/- This work will be of interest to physicists, as well as philosophers and historians of science working with or interested in General Relativity and/or Space, Time and Gravitation more generally. (shrink)

Hermann Weyl was one of the early contributors to the mathematics of general relativity. This article argues that in 1929, for the formulation of a general relativistic framework of the Dirac equation, he both abolished and preserved in modified form the conceptual perspective that he had developed earlier in his “analysis of the problem of space.” The ideas of infinitesimal congruence from the early 1920s were aufgehoben in the general relativistic framework for the Dirac equation. He preserved the central idea (...) of gauge as a “purely infinitesimal” aspect of symmetries in a group extension schema. With respect to methodology, however, Weyl gave up his earlier preferences for relatively a-priori arguments and tried to incorporate as much empiricism as he could. This signified a clearly expressed empirical turn for him. Moreover, in this step he emphasized that the mathematical objects used for the representation of matter structures stood at the center of the construction, rather than interaction fields which, in the early 1920s, he had considered as more or less derivable from geometrico-philosophical considerations. (shrink)

During his whole scientific life Hermann Weyl was fascinated by the interrelation of physical and mathematical theories. From the mid 1920s onward he reflected also on the typical difference between the two epistemic fields and tried to identify it by comparing their respective automorphism structures. In a talk given at the end of the 1940s he gave the most detailed and coherent discussion of his thoughts on this topic. This paper presents his arguments in the talk and puts it in (...) the context of the later development of gauge theories. (shrink)

Dans un discours prononcé à Zurich vers la fin des années 1940, Hermann Weyl a examiné l'épistémologie dialectique de Ferdinand Gonseth et l'a considérée comme trop strictement limitée aux aspects de changement historique. Son expérience de la philosophie diaclectique post-kantienne, en particulier la dérivation du concept de l'espace et de la matière chez Johann Gottlieb Fichte, avait constitué une base dialectique solide pour ses propres études de 1918 en une géométrie purement infinitésimale et la théorie antérieure d'un champ de matière (...) géométriquement unifié (en prolongement du programme Mie-Hilbert). Bien que Weyl se fût alors éloigné des aspects spéculatifs de la philosophie de sa jeunesse et eût montré, en particulier, moins d'enthousiasme qu'auparavant pour Fichte, il nourrissait encore de nombreux doutes sur la base culturelle de la science mathématique moderne et sur son rôle dans la culture matérielle du modernisme de pointe. Pour Weyl, la « réflexion » philosophique était une nécessité culturelle ; il se tourna alors vers lexistentialisme de Karl Jaspers et de Martin Heidegger pour trouver des raisons plus profondes, dans un mouvement comparable à son orientation vers la philosophie de Fichte après la Première Guerre mondiale. Le débat de la fin des années 1940 peut être compris comme une sorte de supplément postérieur à la Seconde Guerre mondiale par rapport à ses commentaires plus connus sur les mathématiques et les sciences naturelles publiés au milieu des années 1920. (shrink)

Nous présentons dans cet article la genèse du projet de l'Édition Hausdorff, ainsi que sa structure organisationnelle ; une discussion suit sur un des aspects centraux de l'œuvre de Hausdorff.

Nous présentons dans cet article la genèse du projet de l'Édition Hausdorff, ainsi que sa structure organisationnelle ; une discussion suit sur un des aspects centraux de l'œuvre de Hausdorff.

We study a Weyl geometric scalar tensor theory of gravity with scalar field \ and scale invariant “aquadratic” kinematical Lagrange density. The Weylian scale connection in Einstein gauge induces an additional acceleration. In the weak field, static, low velocity limit it acquires the deep MOND form of Milgrom/Bekenstein’s gravity. The energy momentum of \ leads to another add on to Newton acceleration. Both additional accelerations together imply a MOND-ian phenomenology of the model. It has unusual transition functions \, \nu _w\). (...) They imply higher phantom energy density than in the case of the more common MOND models with transition functions \, \, \mu _2\). A considerable part of it is due to the scalar field’s energy density which, in our model, gives a scale and generally covariant expression for the self-energy of the gravitational field. (shrink)

info:eu-repo/semantics/publishedVersion.

Erhard Wiersing ; Literaturverz. S. [1013] - 1071 ; Inhaltsverzeichnis ; Volltext // Exemplar mit der Signatur: München, Bayerische Staatsbibliothek -- PVA 2007.1762.

When we attempt to understand a person we make use of a body of practices called “folk psychology”. After clarifying the status and the content of folk psychology, the paper focuses on the current debate about its form. A version of the ‚theory theory’ is sketched that tries to do justice to the holism of the mental and to the constraining role of presumptions of coherence for the ascription of intentional states. Against this background, it is argued that radical simulationism, (...) the main competitor of the ‚theory theory’, is untenable. Understanding a person cannot be solely a matter of mental simulation. (shrink)

This article examines the relationship between trust and solidarity. Juxtaposing trust and solidarity reveals how they are different and how they recursively build on each other. By looking specifically at trust in political solidarity, I argue for an account of trust within solidarity movements for social change, one that suggests avenues for creating and building trust, rather than merely presuming it. Finally, reflecting on the interplay between trust and solidarity, I end with a nod to the transformative impact of solidarity (...) on communities. (shrink)

In this paper, I argue that Simone de Beauvoir’s discussion of festivals appropriates Jean-Jacques Rousseau’s own account of the festival and its place in understanding freedom. I begin with a brief summary of Rousseau’s conflicting accounts of the festival from his Discourse on the Origin of Inequality Among Mankind and the Letter to M. D’Alembert. The contrast of these two texts reveals Rousseau’s conception of freedom as circumscribed by the community. Although Rousseau has an idealized virtuous community in mind, the (...) central insight regarding a community’s involvement in the development of freedom is nevertheless echoed in Beauvoir’s description of the festival in the Ethics of Ambiguity. I explore some of the implications of reading Beauvoir’s account of freedom and the festival as influenced by Rousseau and suggest how doing so impacts our understanding of Beauvoirian politics. (shrink)

Dieses voluminöse Werk ist Abhandlung, Lehrbuch und Nachschlagewerk in einem! Vertretern unterschiedlicher Forschungsgebiete, vor allem aber denen der Pädagogik, liegt hier der im heutigen Wissenschaftsraum erstmals unternommene Versuch vor, das Phänomen »Menschenbildung« nicht allein erziehungswissenschaftlich, sondern umfassend humanwissenschaftlich zu begründen. Unter Berücksichtigung der naturgeschichtlichen, historisch-kulturellen wie historisch-gesellschaftlichen Bedingungen wird auf eine grundsätzliche Vergewisserung des Verständnisses von Menschenbildung hingearbeitet, um letztendlich auch eine neue Sichtweise auf das Phänomen Bildung zu ermöglichen. Praxis wird nur insoweit thematisiert, als sie Gegenstand der Theorie ist (...) und damit ihrer Aufklärung dient. Unter Bildung wird dabei jener alles umfassende Wirkungs- und Handlungszusammenhang verstanden, in dem das menschliche Individuum vom Anbeginn seines Lebens bis zu seinem Tode geformt wird und sich selbst formt. (shrink)

Musik & Werturteil -- Musik & Toleranz -- Musik & Kunst -- Musik & Moral -- Schluss -- Literatur.

Ever since Parmenides, one of philosophy's riddles has been how we are able to direct our thoughts to non-being. Erhard uses the problem of non-existence as the starting point for an analysis of Husserl's phenomenology. He examines Husserl's interpretation of judgments about non-being as judgments made "under assumption" and his analysis of "free fantasy." Erhard thus demonstrates that Husserl is compatible with today's non-relational theories.

It is essential for the strategy of open access self-archiving that scientific authors are given comprehensive information on publisher copyright policies. DINI, the German Initiative for Networked Information, has developed a German (and potentially multilingual) interface to the English SHERPA/RoMEO service to provide additional information on German publishers' open access policies. As a next step, this interface was enhanced to an integration layer combining different sources on publisher copyright policies. This integration layer can be used in many different contexts. Together (...) with the SHERPA/RoMEO team, DINI aims to build an international support structure for open access information. (shrink)

1. Universi corporis pansophici caput summum --2. Arithmetische Beschreibung der Moral-Weisheit von Personen und Sachen.