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The combinatorial principle ⋄#

Published online by Cambridge University Press:  12 March 2014

Keith J. Devlin*
Affiliation:
University of Lancaster, Bailrigg, Lancaster, England

Abstract

We consider various strengthenings of the combinatorial principle ◊+ which are provable from V = L, and give applications in set theory.

Type
Research Article
Copyright
Copyright © Association for Symbolic Logic 1982

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References

REFERENCES

[1]Devlin, K. J., Aspects of constructibility, Lecture Notes in Mathematics, vol. 354, Springer-Verlag, Berlin and New York, 1973.CrossRefGoogle Scholar
[2]Devlin, K. J., Order-types, trees, and a problem of Erdös and Hajnal, Periodica Mathematica Hungarica, vol. 5 (1974), pp. 153160.CrossRefGoogle Scholar
[3]Devlin, K. J., A new construction of a Kurepa tree with no Aronzsajn subtree, Fundamenta Mathematicae (to appear).Google Scholar
[4]Juhasz, J., and Weiss, W., On a problem of Sikorski, Fundamenta Mathematicae, vol. 100 (1978), pp. 223227.CrossRefGoogle Scholar