Extensive measurement and ratio functions

Synthese 75 (1):1 - 23 (1988)
Extensive measurement theory is developed in terms of theratio of two elements of an arbitrary (not necessarily Archimedean) extensive structure; thisextensive ratio space is a special case of a more general structure called aratio space. Ratio spaces possess a natural family of numerical scales (r-scales) which are definable in non-representational terms; ther-scales for an extensive ratio space thus constitute a family of numerical scales (extensive r-scales) for extensive structures which are defined in a non-representational manner. This is interpreted as involving arelational theory of quantity which contrasts in certain respects with thequalitative theory of quantity implicit in standard representational extensive measurement theory. The representational properties of extensiver-scales are investigated, and found to coincide withweak extensive measurement in the sense of Holman. This provides support for the thesis (developed in a separate paper) that weak extensive measurement is a more natural model of actual physical extensive scales than is the standard model using strong extensive measurement. Finally, the present apparatus is applied to slightly simplify the existing necessary and sufficient conditions for strong extensive measurement.
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References found in this work BETA
Hans Colonius (1978). On Weak Extensive Measurement. Philosophy of Science 45 (2):303-308.
Brent Mundy (1987). The Metaphysics of Quantity. Philosophical Studies 51 (1):29 - 54.

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Citations of this work BETA
Maya Eddon (2013). Quantitative Properties. Philosophy Compass 8 (7):633-645.
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