Ultrafilters in the random real model
Ultrafilters in the random real model
We prove that \textsf{P}-points (even strong P-points) and Gruff ultrafilters exist in any forcing extension obtained by adding fewer than $\aleph_Ï% $-many random reals to a model of \textsf{CH. }These results improve and correct previous theorems that can be found in the literature.
Alan Dow、Osvaldo Guzmán
数学
Alan Dow,Osvaldo Guzmán.Ultrafilters in the random real model[EB/OL].(2025-07-11)[2025-07-25].https://arxiv.org/abs/2507.08346.点此复制
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