Weak P-Points in N*
Kenneth Kunen · Birkhäuser Basel eBooks · 1993
N denotes the space of natural numbers (i.e., ω) with the discrete topology. ßN is the Cech compactification of N , and N* = ßN\N . We often identify the points of ßN with the ultrafilters on a?, in which case the points of N* are the non-principal ultrafilters. These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.