The minimal cofinality of an ultrapower of <i>ω</i> and the cofinality of the symmetric group can be larger than b<sup>+</sup> (Q3107357)
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scientific article
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | The minimal cofinality of an ultrapower of <i>ω</i> and the cofinality of the symmetric group can be larger than b<sup>+</sup> |
scientific article |
Statements
The minimal cofinality of an ultrapower of <i>ω</i> and the cofinality of the symmetric group can be larger than b<sup>+</sup> (English)
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23 December 2011
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forcing technique
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minimum cofinality of an ultrapower
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cofinality of the symmetric group
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0.89340717
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0.8184503
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0.8129596
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0.8080481
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0.80728704
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0.8053608
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0.8016767
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0.8012452
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