Supremum vs. maximum:: λ-sets

被引：0
|
作者：
Hernandez-Hernandez, Fernando [1 ]
机构：
[1] Univ Nacl Autonoma Mexico, Inst Matemat, Morelia 58089, Michoacan, Mexico
来源：
TOPOLOGY AND ITS APPLICATIONS | 2007年 / 154卷 / 10期
关键词：
lambda-sets; special subsets of reals; strongly inaccessible cardinal; Hechler forcing; isomorphism of names;
D O I：
10.1016/j.topol.2006.07.016
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
We show that, relative to the existence of an inaccessible cardinal, it is consistent that there is no lambda-set of maximal size and that in the absence of inaccessible cardinals there is a lambda-set of maximal size. (C) 2007 Elsevier B.V. All rights reserved.
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页码：2081 / 2088
页数：8
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