Hypothesis: HR 130:

\({\cal P}(\Bbb R)\) is well orderable.

Conclusion: HR 46-K:

If \(K\) is a finite subset of \(\omega-\{0,1\}\), \(C(\infty,K)\): For every \(n\in K\), every set of \(n\)-element sets has a choice function.

List of models where hypothesis is true and the conclusion is false:

Name Statement
\(\cal N2(n)\) A generalization of \(\cal N2\) This is a generalization of\(\cal N2\) in which there is a denumerable set of \(n\) element sets for\(n\in\omega - \{0,1\}\)
\(\cal N2(n,M)\) Mostowski's variation of \(\cal N2(n)\) \(A\), \(B\), and \(S\)are the same as in \(\cal N2(n)\)

Code: 3

Comments:


Edit | Back