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Analyse Harmonique sur les Groupes de Lie II by P. Eymard, J. Faraut, G. Schiffmann, R. Takahashi

By P. Eymard, J. Faraut, G. Schiffmann, R. Takahashi

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Van Fraassen begins with mirror image—the paradigm of symmetry—as a proof technique. ”66 This leads him to the conclusion that 60 Van Fraassen 1989, 188. 61 Van Fraassen 1989, 216. 62 Van Fraassen 1989, 233. 63 Ibid. , Hon and Goldstein 2005, 445, 453, 454, 457, 458, 459, 462. See also Hon and Goldstein 2006b. 65 Van Fraassen 1989, 235, 236. 66 Van Fraassen 1989, 239. 67 This is akin to the distinction Michael Redhead put forward in his seminal work on symmetry in intertheory relations. ”69 Redhead calls the former class physical symmetries as distinct from the latter which he calls mathematical.

61 In Parts III and IV of his book, Laws and Symmetry, van Fraassen analyzes symmetry as a guide to theory. , is symmetry a single concept? ”62 One usage is in symmetry arguments which van Fraassen regards as the most impressive application of symmetry. Although these arguments give the appearance of a priori claims, they have far reaching consequences for our understanding of the physical world. According to van Fraassen, there are two forms of arguments which reach their conclusion “on the basis of considerations of symmetry”: One, the symmetry argument proper, relies on a meta-principle: that structurally similar problems must receive correspondingly similar solutions.

For one and the same passage states his solution and serves as evidence of what the problem was. 101 History of science is the attempt to ascertain what answers have been given to an evolving set of questions and in what order. In our view, the history of a concept should reflect its meanings as the application of the concept changes over time—in different contexts, different problems arise and, in turn, different answers are given. Two distinct categories should be born in mind and clearly kept apart when conducting a historical analysis: the actor’s vs.

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