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arXiv math/9605234math.LO
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基数保持理想

Cardinal preserving ideals

Moti Gitik, Saharon Shelah

摘要:

我们给出了一些一般性的标准,当卡帕-完全强迫保持largeness属性-像卡帕-预饱和的正常理想的lambda(即使当他们集中在小cofinalities)。然后,我们相当准确地获得一致性强度"NS_lambda是aleph_1-bounding“,对于lambda > aleph_2。

英文摘要:

We give some general criteria, when kappa-complete forcing preserves largeness properties -- like kappa-presaturation of normal ideals on lambda (even when they concentrate on small cofinalities). Then we quite accurately obtain the consistency strength ``NS_lambda is aleph_1-preserving'', for lambda > aleph_2 .

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。

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