Chapter

Definitions

John Horty

in Frege on Definitions

Published in print November 2009 | ISBN: 9780199732715
Published online October 2011 | e-ISBN: 9780199852628 | DOI: http://dx.doi.org/10.1093/acprof:oso/9780199732715.003.0003
Definitions

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Frege's theory of definition is the subject of this chapter. The chapter focuses on the apparent conflict between two of its central tenets. The first is the requirement of fruitfulness which suggests the idea that definitions should make it possible to prove things that we could not have proved otherwise. However, in interpreting Frege's notion of fruitfulness, the focus has been on a weak, psychological reading. The second tenet of discussion is the requirement of eliminability which proposes the idea that an expression containing defined symbols should share its sense with the expression that results when those symbols have been eliminated.

Keywords: theory of definition; fruitfulness; eliminability; expression; defined symbols

Chapter.  10429 words. 

Subjects: Philosophy of Language

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