We have the following indirect implication of form equivalence classes:
| Implication | Reference |
|---|---|
| 86-alpha \(\Rightarrow\) 8 | clear |
| 8 \(\Rightarrow\) 351 |
Disasters in metric topology without choice, Keremedis, K. 2002, Comment. Math. Univ. Carolinae |
Here are the links and statements of the form equivalence classes referenced above:
| Howard-Rubin Number | Statement |
|---|---|
| 86-alpha: | \(C(\aleph_{\alpha},\infty)\): If \(X\) is a set of non-empty sets such that \(|X| = \aleph_{\alpha }\), then \(X\) has a choice function. |
| 8: | \(C(\aleph_{0},\infty)\): |
| 351: | A countable product of metrizable spaces is metrizable. |
Comment: