Richard T. Cox was a professor of physics at the Johns Hopkins University. He was the author of several books on physics and biology.

• PrefacePart I. ProbabilityChapter 1. Axioms of Probable InferenceChapter 2. The Algebra of PropositionsChapter 3. The Conjunctive InferenceChapter 4. The Contradictory InferenceChapter 5. The Disjuntive InferenceChapter 6. A Remark on MeasurementPart II. EntropyChapter 7. Entropy as Diversity and Uncertainty and the Measure of InformationChapter 8. Entropy and PropositionsChapter 9. Systems of PropoisitionsChapter 10. The Entropy of SystemsChapter 11. Entropy and RelevanceChapter 12. A Remark on ChancePart III. ExpectationChapter 13. Expectations and DeviationsChapter 14. The Expectation of NumbersChapter 15. The Ensemble of InstancesChapter 16. The Rule of SuccessionChapter 17. Expectation and ExperienceChapter 18. A Remark on InductionNotesIndex

[This book] is, in my opinion one of the most important ever written on the foundations of probability theory, and the greatest advance in the conceptual, as opposed to the purely mathematical, formulation of the theory since Laplace. -- E. T. Jaynes American Journal of Physics Transformed my view of probability and enriched my career as a physicist. -- Bruce Partridge Physics Today