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A strengthening of Jensen's □ principles

Published online by Cambridge University Press:  12 March 2014

Aaron Beller*
Affiliation:
Hebrew University, Jerusalem, Israel
Ami Litman
Affiliation:
Seminar für Logic und Grundlagenforschung der Universität,Bonn, Federal Republic of Germany
*
Department of Decision Sciences, University of Pennsylvania, Philadelphia, Pennsylvania 19104

Abstract

The aim of this paper is to prove strengthenings of three theorems appearing in Jensen [1].

Type
Research Article
Copyright
Copyright © Association for Symbolic Logic 1980

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References

REFERENCES

[1]Jensen, R.B., The fine structure of the constructible hierarchy, Annals of Mathematical Logic, vol. 4 (1972).CrossRefGoogle Scholar
[2]Prikry, K. and Solovay, R.M., On partitions into stationary sets, this Journal, vol. 40 (1975), pp. 7580.Google Scholar
[3]Silver, J., How to eliminate the fine structure from the work of Jensen.Google Scholar