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Canonical seeds and Prikry trees

Published online by Cambridge University Press:  12 March 2014

Joel David Hamkins*
Affiliation:
Mathematics 15-215, City University of New York, CSI, 2800 Victory Blvd., Staten Island, NY 10314, USA, E-mail: [email protected]

Abstract

Applying the seed concept to Prikry tree forcing ℙμ, I investigate how well ℙμ preserves the maximality property of ordinary Prikry forcing and prove that ℙμ, Prikry sequences are maximal exactly when μ admits no non-canonical seeds via a finite iteration. In particular, I conclude that if μ is a strongly normal supercompactness measure, then ℙμ Prikry sequences are maximal, thereby proving, for a large class of measures, a conjecture of W. Hugh Woodin's.

Type
Research Article
Copyright
Copyright © Association for Symbolic Logic 1997

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References

REFERENCES

[1]Blass, Andreas, Selective ultrafilters and homogeneity, Annals of Pure and Applied Logic, vol. 38 (1988), pp. 215255.CrossRefGoogle Scholar
[2]Cummings, James and Woodin, Hugh, Generalized Prikry forcings, preprint, 1990.Google Scholar
[3]Dehornoy, Patrick, Iterated ultrapowers and Prikry forcing, Annals of Mathematical Logic, vol. 15 (1978), pp. 109160.CrossRefGoogle Scholar
[4]Gitik, , All uncountable cardinals can be singular, Israel Journal of Mathematics, vol. 35, pp. 6188.CrossRefGoogle Scholar
[5]Hamkins, Joel David, Lifting and extending measures; fragile measurability, Ph.D. thesis, UC Berkeley, 1994.CrossRefGoogle Scholar
[6]Henle, J. M., Partition properties and Prikry forcing on simple spaces, this Journal, vol. 55 (1990), pp. 938947.Google Scholar
[7]Jech, Thomas, Set theory, Academic Press, New York, 1978.Google Scholar
[8]Kafkoulis, George, The consistency strength of an infinitary Ramsey property, this Journal, vol. 59 (1994), pp. 11581195.Google Scholar
[9]Kanamori, Akihiro, Large cardinals in set theory, Springer-Verlag, Berlin, 1994.Google Scholar
[10]Kunen, Kenneth, Some applications of iterated ultrapowers in set theory, Annals of Mathematical Logic (1970), pp. 179227.Google Scholar
[11]Louveau, A., Une méthode topologique pour l'étude de la propriété de Ramsey, Israel Journal of Mathematics, vol. 23 (1976), pp. 97116.CrossRefGoogle Scholar
[12]Mathias, Adrian, On sequences generic in the sense of Prikry, Journal of the Australian Mathematical Society, vol. 15 (1973), pp. 409414.CrossRefGoogle Scholar
[13]Menas, Telis K., A combinatorial property of Pkλ, this Journal, vol. 41 (1976), pp. 225234.Google Scholar
[14]Prikry, Karel L., Changing measurable into accessible cardinals, Dissertationes Mathematicae (Roszprawy Matematyczne), vol. 68 (1970), pp. 552.Google Scholar