Implications

This non-implication, Form 46-K \( \not \Rightarrow \) Form 49, whose code is 4, is constructed around a proven non-implication as follows:

  • An (optional) implication of code 1 or code 2 is given. In this case, it's Code 2: 10110, whose string of implications is:
    60 \(\Rightarrow\) 46-K
  • A proven non-implication whose code is 3. In this case, it's Code 3: 180, Form 60 \( \not \Rightarrow \) Form 30 whose summary information is:
    Hypothesis Statement
    Form 60 <p> \(C(\infty,WO)\): Every set of non-empty, well orderable sets has a choice function.<br /> <a href="/books/2">Moore, G. [1982]</a>, p 125. </p>

    Conclusion Statement
    Form 30 <p> <strong>Ordering Principle:</strong> Every set can be linearly ordered. </p>

  • An (optional) implication of code 1 or code 2 is given. In this case, it's Code 2: 10098, whose string of implications is:
    49 \(\Rightarrow\) 30

The conclusion Form 46-K \( \not \Rightarrow \) Form 49 then follows.

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

Name Statement
\(\cal N7\) L\"auchli's Model I \(A\) is countably infinite

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