Propensity probability: Difference between revisions

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Other propensity theorists (''e.g.'' [[Ronald Giere]] <ref>Giere, R. (1973). “Objective single case probabilities and the foundations of statistics”</ref>) do not explicitly define propensities at all, but rather see propensity as defined by the theoretical role it plays in science. They argue, for example, that physical magnitudes such as [[electrical charge]] cannot be explicitly defined either, in terms of more basic things, but only in terms of what they do (such as attracting and repelling other electrical charges). In a similar way, propensity is whatever fills the various roles that physical probability plays in science.
 
Other theories have been offered by [[D. H. Mellor]],<ref>[{{cite book |author=D. H. Mellor |title=The Matter of Chance |url=http://www.amazondspace.comcam.ac.uk/Matter-Chance-D-H-Mellorhandle/dp1810/0521615984183661 Mellor,|publisher=Cambridge D.:University ''ThePress Matter|year=1971 of Chance'']|isbn=978-0521615983}}</ref> and [[Ian Hacking]]<ref>Hacking,{{cite I.book 1965.|author=Ian Hacking |title=Logic of Statistical Inference. Cambridge|url=http: //www.cambridge.org/catalogue/catalogue.asp?isbn=9781316508145|publisher=Cambridge University Press. |year=1965 |isbn=9781316508145}}</ref>
 
====Principal Principle of David Lewis====