Jump to ContentJump to Main Navigation
Objects of Thought$
Users without a subscription are not able to see the full content.

A. N. Prior, P. T. Geach, and A. J. P. Kenny

Print publication date: 1971

Print ISBN-13: 9780198243540

Published to Oxford Scholarship Online: October 2011

DOI: 10.1093/acprof:oso/9780198243540.001.0001

Show Summary Details
Page of

PRINTED FROM OXFORD SCHOLARSHIP ONLINE (www.oxfordscholarship.com). (c) Copyright Oxford University Press, 2018. All Rights Reserved. Under the terms of the licence agreement, an individual user may print out a PDF of a single chapter of a monograph in OSO for personal use (for details see www.oxfordscholarship.com/page/privacy-policy).date: 16 December 2018

Extensionality and Propositional Identity

Extensionality and Propositional Identity

Chapter:
(p.48) 4 Extensionality and Propositional Identity
Source:
Objects of Thought
Author(s):

A. N. Prior

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780198243540.003.0004

This chapter focuses on a particular error: the treatment of truth-values as the denotata of sentences, and the confusion of propositional identity with material equivalence. It begins with a discussion of the fallacy of extensionalism. It then discusses Frege on functions and values, equivalence and propositional identity, the ‘quotation-marks’ objection, and the parallel between truth-values and classes.

Keywords:   extensionalism, Frege, function values, propositional identity, truth-values

Oxford Scholarship Online requires a subscription or purchase to access the full text of books within the service. Public users can however freely search the site and view the abstracts and keywords for each book and chapter.

Please, subscribe or login to access full text content.

If you think you should have access to this title, please contact your librarian.

To troubleshoot, please check our FAQs , and if you can't find the answer there, please contact us .