We have the following indirect implication of form equivalence classes:
Implication | Reference |
---|---|
295 \(\Rightarrow\) 30 |
"Dense orderings, partitions, and weak forms of choice", Gonzalez, C. 1995a, Fund. Math. |
30 \(\Rightarrow\) 62 | clear |
62 \(\Rightarrow\) 178-n-N | clear |
Here are the links and statements of the form equivalence classes referenced above:
Howard-Rubin Number | Statement |
---|---|
295: | DO: Every infinite set has a dense linear ordering. |
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. |
178-n-N: | If \(n\in\omega\), \(n\ge 2\) and \(N \subseteq \{ 1, 2, \ldots , n-1 \}\), \(N \neq\emptyset\), \(MC(\infty,n, N)\): If \(X\) is any set of \(n\)-element sets then there is a function \(f\) with domain \(X\) such that for all \(A\in X\), \(f(A)\subseteq A\) and \(|f(A)|\in N\). |
Comment: