Objective Bayesian calibration and the problem of non-convex evidence

Publication Year:
2012
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Repository URL:
http://philsci-archive.pitt.edu/id/eprint/8990
Author(s):
Wheeler, Gregory
preprint description
Jon Williamson's Objective Bayesian Epistemology relies upon a calibration norm to constrain credal probability by both quantitative and qualitative evidence. One role of the calibration norm is to ensure that evidence works to constrain a convex set of probability functions. This essay brings into focus a problem for Williamson's theory when qualitative evidence specifies non-convex constraints.