Implications

This non-implication, Form 163 \( \not \Rightarrow \) Form 50, whose code is 4, is constructed around a proven non-implication as follows:

  • This non-implication was constructed without the use of this first code 2/1 implication.
  • A proven non-implication whose code is 3. In this case, it's Code 3: 1095, Form 163 \( \not \Rightarrow \) Form 154 whose summary information is:
    Hypothesis Statement
    Form 163 <p> Every non-well-orderable set has an infinite, Dedekind finite subset. </p>

    Conclusion Statement
    Form 154 <p> <strong>Tychonoff's Compactness Theorem for Countably Many \(T_2\) Spaces:</strong> The product of countably many \(T_2\) compact spaces is compact. </p>

  • An (optional) implication of code 1 or code 2 is given. In this case, it's Code 2: 1363, whose string of implications is:
    50 \(\Rightarrow\) 14 \(\Rightarrow\) 154

The conclusion Form 163 \( \not \Rightarrow \) Form 50 then follows.

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

Name Statement
\(\cal N2\) The Second Fraenkel Model The set of atoms \(A=\{a_i : i\in\omega\}\) is partitioned into two element sets \(B =\{\{a_{2i},a_{2i+1}\} : i\in\omega\}\). \(\mathcal G \) is the group of all permutations of \( A \) that leave \( B \) pointwise fixed and \( S \) is the set of all finite subsets of \( A \).

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