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Philosophical Interpretations$
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Robert J. Fogelin

Print publication date: 1992

Print ISBN-13: 9780195071627

Published to Oxford Scholarship Online: November 2003

DOI: 10.1093/019507162X.001.0001

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Wittgenstein on Identity

Wittgenstein on Identity

Chapter:
(p.169) 11 Wittgenstein on Identity
Source:
Philosophical Interpretations
Author(s):

Robert J. Fogelin (Contributor Webpage)

Publisher:
Oxford University Press
DOI:10.1093/019507162X.003.0013

Throughout his career, Wittgenstein harbored distrust for identity statements. In the Tractatus Logico‐Philosophicus, he banned a sign for identity from his system, declaring that “to say of two things that they are identical is nonsense, and to say of one thing that it is identical with itself is to say nothing at all.” His worry during the Tractarian period was that the use of an identity sign allowed the formulation of existence statements, e.g., that the world contains at least one thing. Later in his career he rejected F. P. Ramsay's attempt to introduce an extensionalized version of identity into logic. In his later period, he ridiculed the use of the law of identity as a paradigm of sameness.

Keywords:   existence statements, identity, identity statements, Ramsey, sameness, Tractatus, Wittgenstein

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