Chapter

The Fact that <i>x = y</i> (1987)

Nathan Salmon

in Metaphysics, Mathematics, and Meaning

Published in print November 2005 | ISBN: 9780199284719
Published online February 2006 | e-ISBN: 9780191603235 | DOI: http://dx.doi.org/10.1093/0199284717.003.0009
 The Fact that x = y (1987)

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For any pair of objects, x and y, if x = y, then the fact that x = y is an identity fact. And conversely. (If x ≠ y, then there is no fact that x = y.) Among the facts that obtain in every possible world are all the identity facts. It is argued that the fact that x = y, is such exists, bears a very special relation to the trivial, a priori, fact that x = x: they are one and the same.

Keywords: fact; identity

Chapter.  2292 words. 

Subjects: Philosophy

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