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{{Short description|Philosophical theory}}
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{{original research|date=December 2018}}
{{no footnotes|date=April 2024}}
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The '''science of value''', or '''value science''', is a creation of philosopher [[Robert S. Hartman]], which attempts to formally elucidate [[value theory]] using both [[formal logic|formal]] and [[Symbolic logic#Symbolic logic|symbolic logic]].

==Fundamentals==
The fundamental principle, which functions as an [[axiom]], and can be stated in symbolic logic, is that ''a thing is good insofar as it exemplifies its concept''. To put it another way, "a thing is good if it has all its descriptive properties." This means, according to Hartman, that the good thing has a name, that the name has a meaning defined by a set of properties, and that the thing possesses all of the properties in the set. A thing is bad if it does not fulfill its description.

He introduces three basic dimensions of value, ''[[:wikt:systemic|systemic]]'', ''[[extrinsic]]'' and ''[[intrinsic]]'' for sets of properties—''perfection'' is to ''systemic value'' what ''goodness'' is to ''extrinsic value'' and what ''uniqueness'' is to ''intrinsic value''—each with their own [[cardinality]]: finite, <math>\aleph_0</math> and <math>\aleph_1</math>. In practice, the terms "good" and "bad" apply to finite sets of [[Property (mathematics)|properties]], since this is the only case where there is a ratio between the total number of desired properties and the number of such properties possessed by some object being valued. (In the case where the number of properties is [[countably infinite]], the ''extrinsic'' dimension of value, the ''[[:wikt:exposition|exposition]]'' as well as the mere definition of a specific concept is taken into consideration.)

Hartman quantifies this notion by the principle that ''each property of the thing is worth as much as each other property, depending on the level of abstraction''.<ref>''The Structure of Value'', page 204</ref> Hence, if a thing has ''n'' properties, each of them—if on the same level of abstraction—is proportionally worth ''n''<sup>−1</sup>.

==Infinite sets of properties==
Hartman goes on to consider infinite sets of properties. Hartman claims that ''according to a theorem of transfinite mathematics, any collection of material objects is at most denumerably infinite''.<ref>''The Structure of Value'', page 117</ref> This is not, in fact, a theorem of mathematics. But, according to Hartman, people are capable of a [[denumerably infinite]] set of predicates, intended in as many ways, which he gives as <math>\aleph_1</math>. As this yields a notional [[cardinality of the continuum]], Hartman advises that when setting out to describe a person, a continuum of properties would be most fitting and appropriate to bear in mind. This is the cardinality of ''intrinsic value'' in Hartman's system.

Although they play no role in ordinary mathematics, Hartman deploys the notion of [[aleph number]] reciprocals, as a sort of infinitesimal proportion. This, he contends goes to zero in the limit as the uncountable cardinals become larger. In Hartman's calculus, for example, the assurance in a [[Dear John letter]], that "we will always be friends" has axiological value <math>\frac{_1}{\aleph_2}</math>, whereas taking a metaphor literally would be slightly preferable, the [[Reification (fallacy)|reification]] having a value of <math>\frac{_1}{\aleph_1}</math>.

==Notes==
{{Reflist}}

==References==
* Davis, John William, ed, ''Value and Valuation: Axiological Studies in Honor of Robert S. Hartman'', The University of Tennessee Press, 1972
* Hartman, Robert S., ''The Structure of Value: Foundations of Scientific Axiology'', Southern Illinois University Press, 1967
* Hartman, Robert S., "Application of the Science of Axiology," Ch. IX in Rem B. Edwards and John W. Davis, eds., Forms of Value and Valuation: Theory and Applications. Lanham, Md., University Press of America, 1991
* Hartman, Robert S., ''Freedom to Live,'' (Arthur R. Ellis, editor), Atlanta: Rodopi Editions, Value Inquiry Book Series, 1984, reissued 1994
* Hartman, Robert S., "Axiometric Structure of Intrinsic Value", ''Journal of Value Inquiry'' (Summer, 1974; v.8, no. 2, pp. 88–101
* Katz, Marvin C., ''Sciences of Man and Social Ethics,'' Boston, 1969, esp. pp. 9–45, 101–123.
* Katz, Marvin C., ''Trends Towards Synthesis in the Philosophy of Robert S. Hartman,'' Muskegon: Axiopress (142 pages 2004).

==External links==
* [http://www.hartmaninstitute.org/html/Research_topics.htm Hartman Institute] {{Webarchive|url=https://web.archive.org/web/20041105094359/http://www.hartmaninstitute.org/html/Research_topics.htm |date=2004-11-05 }}
* [http://www.axiometrics.net Axiometrics International, Incorporated--30 years of applied research]
* [http://cfaam.org Center for Applied AxioMetrics] {{Webarchive|url=https://web.archive.org/web/20060202044525/http://cfaam.org/ |date=2006-02-02 }}
* [http://www.hartmaninstitute.org/measurementofvalue/ How intangible values can actually be measured]
* [http://www.valueinsights.com/axiology.html Value Insights-What is Value Science?]

[[Category:Value (ethics)]]

Science of value - Revision history

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