The Tree Property

The Tree Property
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树财产

DOI:
10.1006/aima.1997.1680
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发表时间:
1998
影响因子:
1.7
通讯作者:
M. Foreman
M. Foreman
中科院分区:
数学1区
文献类型:
--
作者:
J. Cummings;M. Foreman

文献摘要

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摘要从一个具有无穷多个超紧基数的模型出发,构造了一个模型,其中对于任意的有限个ε 2,都不存在一棵树。我们还从一个超紧基数和一个弱紧基数的模型出发,构造了一个模型,在这个模型中,当κ是一个共尾性为ω的强极限基数时,不存在κ++-Aronszajn树.
Abstract We construct a model in which there are no ℵn-Aronszajn trees for any finiten⩾2, starting from a model with infinitely many supercompact cardinals. We also construct a model in which there is noκ++-Aronszajn tree forκa strong limit cardinal of cofinalityω, starting from a model with a supercompact cardinal and a weakly compact cardinal above it.