An variation for one souslin tree

An variation for one souslin tree
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一棵 souslin 树的变体

DOI:
10.2307/2586753
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发表时间:
1999
影响因子:
0.6
通讯作者:
Paul B. Larson
Paul B. Larson
中科院分区:
数学3区
文献类型:
--
作者:
Paul B. Larson

文献摘要

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本文提出了Woodin [4]中强迫的一种变形形式,我们的强迫是一种最大型构造,其中每个模型条件选择一棵Souslin树。在扩展中,有一个Souslin树TG,这是所选择的Souslin树的模型中的通用的直接限制。在某种意义上,类属扩张是“存在一棵最小Souslin树”的极大模型,TG就是这棵最小树。特别是,在扩展这Souslin树的财产,迫使与它给出了一个模型的Souslin的假设。
Abstract We present a variation of the forcing as presented in Woodin [4], Our forcing is a ℙmax-style construction where each model condition selects one Souslin tree. In the extension there is a Souslin tree TG which is the direct limit of the selected Souslin trees in the models of the generic. In some sense, the generic extension is a maximal model of "there exists a minimal Souslin tree,” with TG being this minimal tree. In particular, in the extension this Souslin tree has the property that forcing with it gives a model of Souslin's Hypothesis.