English

The Principle of Redundant Reflection

Methodology 2025-09-19 v3 Other Statistics

Abstract

The fact that redundant information does not update a rational belief implies that rational beliefs are updated using Bayes rule. In the framework of Hild (1998a), this is true under mild conditions for discrete, continuous, and arbitrary measure spaces. We prove this result and illustrate it with two examples.

Cite

@article{arxiv.2503.21719,
  title  = {The Principle of Redundant Reflection},
  author = {Martin Metodiev and Maarten Marsman and Lourens Waldorp and Quentin F. Gronau and Eric-Jan Wagenmakers},
  journal= {arXiv preprint arXiv:2503.21719},
  year   = {2025}
}

Comments

11 pages, 0 figures

R2 v1 2026-06-28T22:37:01.514Z