This non-implication,
Form 5 \( \not \Rightarrow \)
Form 376,
whose code is 4, is constructed around a proven non-implication as follows:
Hypothesis | Statement |
---|---|
Form 165 | <p> \(C(WO,WO)\): Every well ordered family of non-empty, well orderable sets has a choice function. </p> |
Conclusion | Statement |
---|---|
Form 132 | <p> \(PC(\infty, <\aleph_0,\infty)\): Every infinite family of finite sets has an infinite subfamily with a choice function. </p> |
The conclusion Form 5 \( \not \Rightarrow \) Form 376 then follows.
Finally, the
List of models where hypothesis is true and the conclusion is false:
Name | Statement |
---|---|
\(\cal N24\) Hickman's Model I | This model is a variation of \(\cal N2\) |