We have the following indirect implication of form equivalence classes:
| Implication | Reference |
|---|---|
| 225 \(\Rightarrow\) 225 |
Here are the links and statements of the form equivalence classes referenced above:
| Howard-Rubin Number | Statement |
|---|---|
| 225: | Every proper filter on \(\omega\) can be extended to an ultrafilter. |
| 225: | Every proper filter on \(\omega\) can be extended to an ultrafilter. |
Comment: