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End-extensions preserving power set

Published online by Cambridge University Press:  12 March 2014

Thomas Forster
Affiliation:
Department of Pure Mathematics and Mathematical Statistics, University of Cambridge, Cambridge CB2 1SB, England
Richard Kaye
Affiliation:
Jesus College, Oxford OX1 3DW, England

Abstract

We consider the quantifier hierarchy of Takahashi [1972] and show how it gives rise to reflection theorems for some large cardinals in ZF, a new natural subtheory of Zermelo's set theory, a potentially useful new reduction of the consistency problem for Quine's NF, and a sharpening of another reduction of this problem due to Boffa.

Type
Research Article
Copyright
Copyright © Association for Symbolic Logic 1991

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References

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