Descriptor Revision

Belief Change through Direct Choice

  • Sven Ove Hansson

Part of the Trends in Logic book series (TREN, volume 46)

Table of contents

  1. Front Matter
    Pages i-xviii
  2. Why a New Approach?

    1. Front Matter
      Pages 1-1
    2. Sven Ove Hansson
      Pages 3-16
    3. Sven Ove Hansson
      Pages 17-26
    4. Sven Ove Hansson
      Pages 27-42
  3. Descriptor Revision

    1. Front Matter
      Pages 43-43
    2. Sven Ove Hansson
      Pages 45-61
    3. Sven Ove Hansson
      Pages 63-84
    4. Sven Ove Hansson
      Pages 85-93
    5. Sven Ove Hansson
      Pages 95-114
  4. Sentential Change Revisited

    1. Front Matter
      Pages 115-115
    2. Sven Ove Hansson
      Pages 117-131
    3. Sven Ove Hansson
      Pages 133-149
    4. Sven Ove Hansson
      Pages 151-162
  5. Epilogue

    1. Front Matter
      Pages 163-163
    2. Sven Ove Hansson
      Pages 165-167
  6. Back Matter
    Pages 169-239

About this book


This book provides a critical examination of how the choice of what to believe is represented in the standard model of belief change. In particular the use of possible worlds and infinite remainders as objects of choice is critically examined.

Descriptors are introduced as a versatile tool for expressing the success conditions of belief change, addressing both local and global descriptor revision. The book presents dynamic descriptors such as Ramsey descriptors that convey how an agent’s beliefs tend to be changed in response to different inputs. It also explores sentential revision and demonstrates how local and global operations of revision by a sentence can be derived as a special case of descriptor revision. Lastly, the book examines revocation, a generalization of contraction in which a specified sentence is removed in a process that may possibly also involve the addition of some new information to the belief set.


Belief Change Belief Revision Descriptor Revision Database Updating Contraction Theory Change Theory Revision AGM Model Possible world models Epistemic Entrenchment Global descriptor revision Local descriptor revision Ramsey descriptors Revocation

Authors and affiliations

  • Sven Ove Hansson
    • 1
  1. 1.Division of PhilosophyRoyal Institute of TechnologyStockholmSweden

Bibliographic information

  • DOI
  • Copyright Information Springer International Publishing AG 2017
  • Publisher Name Springer, Cham
  • eBook Packages Mathematics and Statistics
  • Print ISBN 978-3-319-53060-4
  • Online ISBN 978-3-319-53061-1
  • Series Print ISSN 1572-6126
  • Series Online ISSN 2212-7313
  • Buy this book on publisher's site