BibTeX: 
@article{Neumann_Morgenstern_UtilityAFP,
author = {Julian Parsert and Cezary Kaliszyk},
title = {VonNeumannMorgenstern Utility Theorem},
journal = {Archive of Formal Proofs},
month = jul,
year = 2018,
note = {\url{http://isaafp.org/entries/Neumann_Morgenstern_Utility.html},
Formal proof development},
ISSN = {2150914x},
}
