We have the following indirect implication of form equivalence classes:
| Implication | Reference |
|---|---|
| 164 \(\Rightarrow\) 91 |
Dedekind-Endlichkeit und Wohlordenbarkeit, Brunner, N. 1982a, Monatsh. Math. |
| 91 \(\Rightarrow\) 361 | Equivalents of the Axiom of Choice II, Rubin, 1985, theorem 5.7 |
| 361 \(\Rightarrow\) 362 | Zermelo's Axiom of Choice, Moore, 1982, page 325 |
Here are the links and statements of the form equivalence classes referenced above:
| Howard-Rubin Number | Statement |
|---|---|
| 164: | Every non-well-orderable set has an infinite subset with a Dedekind finite power set. |
| 91: | \(PW\): The power set of a well ordered set can be well ordered. |
| 361: | In \(\Bbb R\), the union of a denumerable number of analytic sets is analytic. G. Moore [1982], pp 181 and 325. |
| 362: | In \(\Bbb R\), every Borel set is analytic. G. Moore [1982], pp 181 and 325. |
Comment: