1st Edition

The Philosophical Foundations of Bayesianism An Opinionated Introduction

By Kenny Easwaran Copyright 2026
304 Pages 11 B/W Illustrations
by Routledge

304 Pages 11 B/W Illustrations
by Routledge

304 Pages 11 B/W Illustrations
by Routledge

Bayesianism is the view that rational degrees of belief should follow probability theory. In this book, philosopher Kenny Easwaran defends Bayesianism as an effective normative framework when applied to all "doxastic subjects": humans, animals, artificial intelligences, groups, and even hypothetical aliens or angels. The book addresses major challenges: concerns about numerical precision and... Read more

1) Belief comes in degrees

2) Belief guides action

3) Belief aims at the truth

4) The measurement of belief

5) Zero isn’t nothing

6) Rational change of belief

7) Three components of rationality

8) Multiple rationalities

Biography

Kenny Easwaran is Professor of Logic and Philosophy of Science at the University of California, Irvine. He works on many issues in formal epistemology, decision theory, and the philosophy of mathematics, as well as having interests in how these topics relate to collective agency, artificial intelligence, games and puzzles, and urban planning.