We have the following indirect implication of form equivalence classes:
Implication | Reference |
---|---|
292 \(\Rightarrow\) 90 |
The axiom of choice and linearly ordered sets, Howard, P. 1977, Fund. Math. |
90 \(\Rightarrow\) 91 | The Axiom of Choice, Jech, 1973b, page 133 |
91 \(\Rightarrow\) 309 | Equivalents of the Axiom of Choice II, Rubin, 1985, theorem 5.7 |
Here are the links and statements of the form equivalence classes referenced above:
Howard-Rubin Number | Statement |
---|---|
292: | \(MC(LO,\infty)\): For each linearly ordered family of non-empty sets \(X\), there is a function \(f\) such that for all \(x\in X\) \(f(x)\) is non-empty, finite subset of \(x\). |
90: | \(LW\): Every linearly ordered set can be well ordered. Jech [1973b], p 133. |
91: | \(PW\): The power set of a well ordered set can be well ordered. |
309: | The Banach-Tarski Paradox: There are three finite partitions \(\{P_1,\ldots\), \(P_n\}\), \(\{Q_1,\ldots,Q_r\}\) and \(\{S_1,\ldots,S_n, T_1,\ldots,T_r\}\) of \(B^3 = \{x\in {\Bbb R}^3 : |x| \le 1\}\) such that \(P_i\) is congruent to \(S_i\) for \(1\le i\le n\) and \(Q_i\) is congruent to \(T_i\) for \(1\le i\le r\). |
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