
Mild contraction
evaluating loss of information due to loss of belief
"Isaac Levi's new book develops further his pioneering work in formal epistemology, focusing on the problem of belief contraction, or how rationally to relinquish old beliefs. Levi offers the most penetrating analysis to date of this key question in epistemology, offering a completely new solution and explaining its relation to his earlier proposals. He mounts an argument in favour of the thesis that contracting a state of belief by giving up specific beliefs is to be evaluated in terms of the value of the information lost by doing so. The rationale aims to be thoroughly decision theoretic. Levi spells out his goals and shows that certain types of recommendations are obtained if one seeks to promote these goals; he also compares his approach to his earlier account of inductive expansion. The recommendations are for 'mild contractions'. These are formally the same as the 'severe withdrawals' considered by Pagnucco and Rott, but the rationale is different. A critical part of the book concerns the elaboration of these differences. The results are relevant to accounts of the conditions under which it is legitimate to cease believing, and to accounts of conditionals. [This book] will be of great interest to all specialists in belief revision theory and to many students of formal epistemology, philosophy of science, and pragmatism"--Bookjacket.
Beyond its central premise, the book can be read through the connected lenses of Nonfiction. Those themes offer useful points of attention as the characters, ideas, or world develop, especially where the book complicates the expectations of its primary category.
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What the reading experience may hold
A fuller profile for choosing with more confidence—not just another copy of the preview.
Nonfiction
Use these as starting points rather than limits; the most memorable books often stretch beyond their catalog labels.
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These notes are inferred from available catalog information and may not be complete. Check a publisher or reader-supplied guide if you need comprehensive warnings.
Balanced tone · Urgent pace
A comfortable full-length choice for steady daily reading.
A good fit if…
Readers who want a thoughtful experience and enjoy noticing the connections beneath a book’s surface story.
This book's DNA
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This signal is descriptive, not a rating. It helps compare the kind of reading experience this edition may offer.
Spoiler-Free Emotional Arc
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A quick reading snapshot
Edition facts and catalog signals to help you decide whether this book fits what you want to read next.
- ISBN-13
- 978-0-1992-7070-5
- Language
- English
- Edition record
- OL3327571M
A more thoughtful way into this book
This guide uses the edition details and category signals above to help you choose deliberately. It does not replace the author's work or a full review.
A comfortable full-length choice for steady daily reading.
Begin with its place in Nonfiction, then notice where the book resists that label.
Read for connection, not completion.
Mark one passage that sharpens the book's central concern and one that complicates it. That tension often reveals more than a quick summary.
Three questions to carry with you
- Whose perspective organizes the story, and whose perspective remains outside it?
- Which sources or lived experiences carry the author’s central argument?
- How does the book change the way you understand its larger subject?
Editorial framework by Wesley Bryan, BookenDeX Founder and Editor.







