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arXiv:1005.2802 [math.LO]AbstractReferencesReviewsResources

Preserving old ([omega]^{aleph_0},supseteq) is proper

Saharon Shelah

Published 2010-05-17, updated 2013-12-24Version 2

We give some sufficient and necessary conditions on a forcing notion Q for preserving the forcing notion ([omega]^{aleph_0},supseteq) is proper. They cover many reasonable forcing notions.

Categories: math.LO
Subjects: 03E35, 03E50
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