DESTRUCTIBILITY OF THE TREE PROPERTY AT ℵω+1

被引:2
|
作者
Hayut, Yair [1 ]
Magidor, Menachem [1 ]
机构
[1] Hebrew Univ Jerusalem, Einstein Inst Math, Edmond J Safra Campus, IL-9190401 Jerusalem, Israel
基金
奥地利科学基金会;
关键词
tree property; successors of singulars; forcing; SUCCESSORS;
D O I
10.1017/jsl.2019.4
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We construct a model in which the tree property holds in. aleph(omega+1) and it is destructible under Col(omega, omega(1)). On the other hand we discuss some cases in which the tree property is indestructible under small or closed forcings.
引用
收藏
页码:621 / 631
页数:11
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