The consistency strength of NFUB
Logic
2008-02-03 v1
Abstract
We show that the consistency strength of the system NFUB, a variant of Quine's "New Foundations" recently introduced by Randall Holmes, is precisely that of [ZFC - Power Set] + "There is a weakly compact cardinal''. This is a preliminary draft of the paper. Nevertheless, it contains a complete proof.
Cite
@article{arxiv.math/9707207,
title = {The consistency strength of NFUB},
author = {Robert M. Solovay},
journal= {arXiv preprint arXiv:math/9707207},
year = {2008}
}