arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1406.3307math.LO
收藏

以适当模型集作为边条件的强迫

Forcing with Adequate Sets of Models as Side Conditions

John Krueger

摘要:

我们提出了一个一般的框架,迫使$ω_2$有限的条件,使用可数模型作为侧条件。这个框架是基于一种方法,比较可数模型的成员相关的一个大的初始段。我们给出了几个例子,这种类型的强迫,包括添加一个功能$ω_2$,添加一个非反射固定子集的$ω_2 \cap \textrm{cof}(ω)$,并添加一个$ω_1$ -Kurepa树。

英文摘要:

We present a general framework for forcing on $ω_2$ with finite conditions using countable models as side conditions. This framework is based on a method of comparing countable models as being membership related up to a large initial segment. We give several examples of this type of forcing, including adding a function on $ω_2$, adding a nonreflecting stationary subset of $ω_2 \cap \textrm{cof}(ω)$, and adding an $ω_1$-Kurepa tree.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑