论文信息 - The shelahP-point independence theorem

The shelahP-point independence theorem

In this paper, we present S. Shelah's example of a model of set theory in which there are noP-points in βN/N. This settles the famous open question: “Is ‘ZFC+there are noP-points in βN/N’ consistent?”

Edward L. Wimmers | E. Wimmers

[1] W. Rudin. Homogeneity Problems in the Theory of Čech Compactifications , 1956 .

[2] Serge Grigorieff,et al. Combinatorics on ideals and forcing , 1971 .

[3] Kenneth Kunen,et al. Ultrafilters and independent sets , 1972 .

[4] W. Wistar Comfort,et al. The Theory of Ultrafilters , 1974 .