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Ramsey-like cardinals

Published online by Cambridge University Press:  12 March 2014

Victoria Gitman*
Affiliation:
New York City College of Technology (CUNY), 300 Jay Street, Brooklyn, NY 11201, USA, E-mail: vgitman@nylogic.org

Abstract

One of the numerous characterizations of a Ramsey cardinal κ involves the existence of certain types of elementary embeddings for transitive sets of size κ satisfying a large fragment of ZFC. We introduce new large cardinal axioms generalizing the Ramsey elementary embeddings characterization and show that they form a natural hierarchy between weakly compact cardinals and measurable cardinals. These new axioms serve to further our knowledge about the elementary embedding properties of smaller large cardinals, in particular those still consistent with V = L.

Type
Research Article
Copyright
Copyright © Association for Symbolic Logic 2011

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References

REFERENCES

[1]Cummings, J., Iterated forcing and elementary embeddings, Handbook of set theory (Foreman, M. and Kanamori, A., editors), Springer, New York, 2010, pp. 775884.CrossRefGoogle Scholar
[2]Devlin, K. J., Constructibility, Perspectives in Mathematical Logic, Springer–Verlag, New York, 1984.CrossRefGoogle Scholar
[3]Dodd, A. J., The core model, London Mathematical Society Lecture Note Series, vol. 61, Cambridge University Press, Cambridge, 1982.CrossRefGoogle Scholar
[4]Feng, Q., A hierarchy of Ramsey cardinals, Annals of Pure and Applied Logic, vol. 49 (1990), no. 3, pp. 257277.CrossRefGoogle Scholar
[5]Gaifman, H., Elementary embeddings of models of set-theory and certain subtheories, Axiomatic set theory (Proceedings of the Symposium on Pure Mathematics, vol. XIII, part II, University of California, Los Angeles, California, 1967), American Mathematical Society, Providence, R.I., 1974, pp. 33101.Google Scholar
[6]Gitman, V. and Johnstone, T., Indestructibility for Ramsey-like cardinals, in preparation, 2010.Google Scholar
[7]Gitman, V. and Welch, P. D., Ramsey-like cardinals II, this Journal, vol. 76 (2011), no. 2, pp. 541560.Google Scholar
[8]Hamkins, J. D., Forcing and large cardinals, manuscript, 2007.Google Scholar
[9]Jech, T., Set theory, third ed., Springer Monographs in Mathematics, Springer-Verlag, New York, 2003.Google Scholar
[10]Kanamori, A., The higher infinite, second ed., Springer Monographs in Mathematics, Springer-Verlag, New York, 2003.Google Scholar
[11]Kleinberg, E. M., A combinatorial characterization of normal M-ultrafilters, Advances in Mathematics, vol. 30 (1978), no. 2, pp. 7784.CrossRefGoogle Scholar
[12]Kunen, K., Some applications of iterated ultrapowers in set theory, Annals of Pure and Applied Logic, vol. 1 (1970), pp. 179227.Google Scholar
[13]Mitchell, W. J., Ramsey cardinals and constructibility, this Journal, vol. 44 (1979), no. 2, pp. 260266.Google Scholar
[14]Welch, P. D. and Sharpe, I., Greatly Erdős cardinals and some generalizations to the Chang and Ramsey properties, Annals of Pure and Applied Logic, to appear.Google Scholar