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Where MA first fails

Published online by Cambridge University Press:  12 March 2014

Kenneth Kunen
Kenneth Kunen*
Affiliation:
Department of Mathematics, University of Wisconsin, Madison, Wisconsin 53706
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Abstract

If θ is any singular cardinal of cofinality ω 1, we produce a forcing extension in which MA holds below θ but fails at θ. The failure is due to a partial order which splits a gap of size θ in .

Type
Research Article
Information
The Journal of Symbolic Logic , Volume 53 , Issue 2 , June 1988 , pp. 429 - 433
Copyright
Copyright © Association for Symbolic Logic 1988

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Footnotes

1

Research supported by NSF grant DMS-8501521.

References

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