We have the following indirect implication of form equivalence classes:
| Implication | Reference |
|---|---|
| 30 \(\Rightarrow\) 10 | clear |
| 10 \(\Rightarrow\) 423 | clear |
Here are the links and statements of the form equivalence classes referenced above:
| Howard-Rubin Number | Statement |
|---|---|
| 30: | Ordering Principle: Every set can be linearly ordered. |
| 10: | \(C(\aleph_{0},< \aleph_{0})\): Every denumerable family of non-empty finite sets has a choice function. |
| 423: | \(\forall n\in \omega-\{o,1\}\), \(C(\aleph_0, n)\) : For every \(n\in \omega - \{0,1\}\), every denumerable set of \(n\) element sets has a choice function. |
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