Chapter

Identity

Terence Parsons

in Indeterminate Identity

Published in print September 2000 | ISBN: 9780198250449
Published online October 2011 | e-ISBN: 9780191681301 | DOI: http://dx.doi.org/10.1093/acprof:oso/9780198250449.003.0003
Identity

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This chapter discusses identity. Real identity in the world is defined in terms of coincidence of properties: objects are identical if they both determinately have and determinately lack the same properties, and they are distinct if one determinately has a property that the other determinately lacks. If neither of these holds, then it is indeterminate whether the objects are identical. It is an empirical matter whether there is any indeterminacy at all, and an empirical matter whether such indeterminacy, if it exists, extends to identity. This explanation of identity validates Leibniz's Law. The examination reviews the four identity puzzles. In each case in which the identity is indeterminate, there is a property determinately possessed by one object that is not determinately possessed by the other, but there is no property for which they determinately disagree.

Keywords: Leibniz's Law; identity; indeterminate identity; identity laws; relative identity

Chapter.  4950 words. 

Subjects: Metaphysics

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