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Canonical seeds and Prikry trees
Published online by Cambridge University Press: 12 March 2014
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.
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- Copyright © Association for Symbolic Logic 1997
References
REFERENCES
[1]Blass, Andreas, Selective ultrafilters and homogeneity, Annals of Pure and Applied Logic, vol. 38 (1988), pp. 215–255.CrossRefGoogle Scholar
[3]Dehornoy, Patrick, Iterated ultrapowers and Prikry forcing, Annals of Mathematical Logic, vol. 15 (1978), pp. 109–160.CrossRefGoogle Scholar
[4]Gitik, , All uncountable cardinals can be singular, Israel Journal of Mathematics, vol. 35, pp. 61–88.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. 938–947.Google Scholar
[8]Kafkoulis, George, The consistency strength of an infinitary Ramsey property, this Journal, vol. 59 (1994), pp. 1158–1195.Google Scholar
[10]Kunen, Kenneth, Some applications of iterated ultrapowers in set theory, Annals of Mathematical Logic (1970), pp. 179–227.Google Scholar
[11]Louveau, A., Une méthode topologique pour l'étude de la propriété de Ramsey, Israel Journal of Mathematics, vol. 23 (1976), pp. 97–116.CrossRefGoogle Scholar
[12]Mathias, Adrian, On sequences generic in the sense of Prikry, Journal of the Australian Mathematical Society, vol. 15 (1973), pp. 409–414.CrossRefGoogle Scholar
[13]Menas, Telis K., A combinatorial property of Pkλ, this Journal, vol. 41 (1976), pp. 225–234.Google Scholar
[14]Prikry, Karel L., Changing measurable into accessible cardinals, Dissertationes Mathematicae (Roszprawy Matematyczne), vol. 68 (1970), pp. 5–52.Google Scholar
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