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Minimality in the Δ⅓-degrees

Published online by Cambridge University Press:  12 March 2014

Philip Welch
Philip Welch*
Affiliation:
II Mathematische Institut, Freie Universität Berlin, 1000 Berlin 31, West Germany
*
School of Mathematics, University of Bristol, Bristol BS8 1TW, England
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Abstract

We show in ZFC, assuming all reals have sharps, that a countable collection of Δ⅓-degrees without a minimal upper bound implies the existence of inner models with measurable cardinals.

Information

Type
Research Article
Information
The Journal of Symbolic Logic , Volume 52 , Issue 4 , December 1987 , pp. 908 - 915
Copyright
Copyright © Association for Symbolic Logic 1987

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References

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