We have the following indirect implication of form equivalence classes:
Implication | Reference |
---|---|
384 \(\Rightarrow\) 14 |
"Maximal filters, continuity and choice principles", Herrlich, H. 1997, Quaestiones Math. |
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 \(\Rightarrow\) 378 | clear |
378 \(\Rightarrow\) 336-n | clear |
Here are the links and statements of the form equivalence classes referenced above:
Howard-Rubin Number | Statement |
---|---|
384: | Closed Filter Extendability for \(T_1\) Spaces: Every closed filter in a \(T_1\) topological space can be extended to a maximal closed filter. |
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. |
378: | Restricted Choice for Families of Well Ordered Sets: For every infinite set \(X\) there is an infinite subset \(Y\) of \(X\) such that the family of non-empty well orderable subsets of \(Y\) has a choice function. |
336-n: | (For \(n\in\omega\), \(n\ge 2\).) For every infinite set \(X\), there is an infinite \(Y \subseteq X\) such that the set of all \(n\)-element subsets of \(Y\) has a choice function. |
Comment: