What is Identity?

Oxford University Press (1989)
The concept of identity has been seen to lead to a paradox: we cannot truly and usefully say that a thing is the same either as itself or as something else. Williams here examines this paradox in philosophical logic, and its implications for the philosophy of mathematics, the philosophy of mind, and relativism about identity.
Keywords Identity (Philosophical concept
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Call number BC199.I4.W55 1989
ISBN(s) 0198248083  
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Lloyd Humberstone (2005). Geach's Categorial Grammar. Linguistics and Philosophy 28 (3):281 - 317.
Maria J. Frapolli (1996). The Logical Enquiry Into Truth1. History and Philosophy of Logic 17 (1-2):179-197.

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