ONLINE FIRST
published on March 8, 2023
Michael Nielsen
https://doi.org/10.5840/tht202322811
Preference Change and Utility Conditionalization
Olav Vassend has recently (2021) presented a decision-theoretic argument for updating utility functions by what he calls ¡°utility conditionalization.¡± Vassend¡¯s argument is meant to mirror closely the well-known argument for Bayesian conditionalization due to Hilary Greaves and David Wallace (2006). I show that Vassend¡¯s argument is inconsistent with ZF set theory and argue that it therefore does not provide support for utility conditionalization.