Short complete nested sequences in \(\beta N\setminus N\) and small maximal almost-disjoint families. (English) Zbl 0246.02047
MSC:
| 03E35 | Consistency and independence results |
| 03E05 | Other combinatorial set theory |
| 54Bxx | Basic constructions in general topology |
| 54D35 | Extensions of spaces (compactifications, supercompactifications, completions, etc.) |
