Jump to ContentJump to Main Navigation
Warrant: The Current Debate$
Users without a subscription are not able to see the full content.

Alvin Plantinga

Print publication date: 1993

Print ISBN-13: 9780195078626

Published to Oxford Scholarship Online: November 2003

DOI: 10.1093/0195078624.001.0001

Show Summary Details
Page of

PRINTED FROM OXFORD SCHOLARSHIP ONLINE (www.oxfordscholarship.com). (c) Copyright Oxford University Press, 2019. 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: 21 July 2019

Bayesian Coherentism and Rationality

Bayesian Coherentism and Rationality

(p.132) 7 Bayesian Coherentism and Rationality
Warrant: The Current Debate

Alvin Plantinga (Contributor Webpage)

Oxford University Press

Rationality, although distinct from warrant, is a notion both interesting in its own right and important for a solid understanding of warrant. In this chapter, I first disambiguate at least five different forms of rationality, and, second, examine the relationship between Bayesianism and rationality (in its different forms or senses). Bayesians often claim that conformity to Bayesian constraints (such as coherence, changing belief by conditionalization or probability kinematics, or van Fraassen's Reflection) is necessary for rationality. Against this view, I argue that (1) none of the forms of rationality I distinguished requires coherence, and some of them in fact require incoherence, and that (2) changing belief by conditionalization (or by probability kinematics) is neither a sensible ideal for human cognizers nor a requirement for rationality. Finally, after a somewhat extended look at Reflection, I argue that (3) while van Fraassen surely has important and probably true things to say about what rational integrity requires with respect to one's commitments and intentions about belief change, it is nonetheless the case that rationality does not require that I conform to Reflection.

Keywords:   Bayesianism, coherence, coherentism, conditionalization, van Fraassen, probability kinematics, rationality, Reflection, warrant

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 .