We have the following indirect implication of form equivalence classes:
Implication | Reference |
---|---|
14 \(\Rightarrow\) 49 |
A survey of recent results in set theory, Mathias, A.R.D. 1979, Period. Math. Hungar. |
49 \(\Rightarrow\) 30 | clear |
30 \(\Rightarrow\) 62 | clear |
62 \(\Rightarrow\) 102 | The Axiom of Choice, Jech, 1973b, page 162 problem 11.12 |
Here are the links and statements of the form equivalence classes referenced above:
Howard-Rubin Number | Statement |
---|---|
14: | BPI: Every Boolean algebra has a prime ideal. |
49: | Order Extension Principle: Every partial ordering can be extended to a linear ordering. Tarski [1924], p 78. |
30: | Ordering Principle: Every set can be linearly ordered. |
62: | \(C(\infty,< \aleph_{0})\): Every set of non-empty finite sets has a choice function. |
102: | For all Dedekind finite cardinals \(p\) and \(q\), if \(p^{2} = q^{2}\) then \(p = q\). Jech [1973b], p 162 prob 11.12. |
Comment: