Robert M. Solovay
Published 1997-07-30Version 1
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.
On the consistency strength of the proper forcing axiom
On a relation between $λ$-full well-ordered sets and weakly compact cardinals
The consistency strength of long projective determinacy
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