...
首页> 外文期刊>Canadian Journal of Mathematics >MAD Saturated Families and SANE Player
【24h】

MAD Saturated Families and SANE Player

机译:MAD饱和家庭和SANE播放器

获取原文
获取原文并翻译 | 示例
           

摘要

We throw some light on the question: is there a MAD family (a maximal family of infinite subsets of N, the intersection of any two is finite) that is saturated (=completely separable i.e., any X ∈ N is included in a finite union of members of the family or includes a member (and even continuum many members) of the family). We prove that it is hard to prove the consistency of the negation: (i) if 2~(No) < N_w, then there is such a family; (ii) if there is no such family, then some situation related to pcf holds whose consistency is large (and if a_* > N_l even unknown); (iii) if, e.g., there is no inner model with measurables, then there is such a family.
机译:我们对这个问题作一些说明:是否存在一个饱和的(完全可分,即,任何X∈N都包括在有限联合中)MAD族(N的无限子集的最大族,任何两个的交集是有限的)。的家庭成员或包括该家庭成员(甚至包括许多连续家庭))。我们证明很难证明否定的一致性:(i)如果2〜(No) N_1甚至未知); (iii)例如,如果没有可测量的内部模型,那么就存在这样的家庭。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号