## Psychology Dictionary of ArgumentsHome | |||

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Quantities, physics: Quantities in physics are measurable properties of objects, processes or states. See also Scales, Proportions, Change, Motion, Processes, Flux, Space, Time, Spacetime, Metrisability, Measurements._____________ Annotation: The above characterizations of concepts are neither definitions nor exhausting presentations of problems related to them. Instead, they are intended to give a short introduction to the contributions below. – Lexicon of Arguments. | |||

Author | Concept | Summary/Quotes | Sources |
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John Bigelow on Quantities (Physics) - Dictionary of Arguments I 74 Size/Direction/Bigelow/Pargetter: e.g. two-digit relation between velocities E.g. Two points on the homogeneous rotating disc on the same radius: I 75 Then their instantaneous velocities have the same direction. At the same time, they differ in size due to the different distances from the centre. Common/Solution/Bigelow/Pargetter: the common is a property of the 2nd level (sic): the property to have a velocity with that and that direction. Correspondingly the opposite for points of a circle around the center: Commonality: the property of the 2nd level to have a velocity with that and that size. Vectors/Bigelow/Pargetter: have properties of the 2nd level (sic) i. e. properties of properties. >Vectors/Bigelow. Equality/Vector/Bigelow/Pargetter: if two vectors share one of the properties of the 2nd level, say, for example, they have the same direction or the same size. (Same direction, same size). >Universals, >Universals/Armstrong. Identity/Vector/Bigelow/Pargetter: two vectors are identical if they share all properties of the 2nd level (here: size and direction). Flux/Vector: through this concept of identity, the Flux theory can understand vectors. >Flux/Bigelow. Universals/Bigelow/Pargetter: in the case of vectors, we assume that both properties of the 2nd level and properties of the 2nd degree are real universals. Namely, a posteriori universals in the sense of Armstrong. Because the common denominator of the points mentioned above on the disc is not merely a linguistic phenomenon. ((s) because of the causal forces?). I 76 Difference/Bigelow/Pargetter: this allows us to specify the size of differences. >Disticntions. Grades/size/differences in size/difference/Frege/Whitehead/Wiener/Quine/Bigelow/Pargetter: (see above, similar to the quantities) (Lit. Frege 1893 ^{(1)}, Whitehead/Russell 1910^{(2)} vol 3 p. 6 "Quantity", Quine 1941^{(3)}, Bigelow (1988a)^{(4)}. Solution: Relations between relations. >Relations, >Degrees,/graduals. 1. Frege, G. (1893). Grundgesetze der Arithmetik. Jena: Hermann Pohle. 2. Whitehead, A.N. and Russel, B. (1910). Principia Mathematica, Vol I. Cambridge University Press. 3. Quine, W.V.O. (1941). Whitehead and teh rise of modern logic. In: The philosophy of Alfred North Whitehead (ed. P.A. Schilpp). pp.125-63. La Salle, Ill. Open Court. 4. Bigelow, J. (1988a). The reality of numbers: A physicalist's philosophy of mathematics. Oxford: Clarendon Press. _____________ Explanation of symbols: Roman numerals indicate the source, arabic numerals indicate the page number. The corresponding books are indicated on the right hand side. ((s)…): Comment by the sender of the contribution. Translations: Dictionary of Arguments The note [Concept/Author], [Author1]Vs[Author2] or [Author]Vs[term] resp. "problem:"/"solution:", "old:"/"new:" and "thesis:" is an addition from the Dictionary of Arguments. If a German edition is specified, the page numbers refer to this edition. |
Big I J. Bigelow, R. Pargetter Science and Necessity Cambridge 1990 |