Implications

This non-implication, Form 191 \( \not \Rightarrow \) Form 233, whose code is 6, 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 5. In this case, it's Code 3: 501, Form 191 \( \not \Rightarrow \) Form 241 whose summary information is:
    Hypothesis Statement
    Form 191 <p> \(SVC\): There is a set \(S\) such that for every set \(a\), there is an ordinal \(\alpha\) and a function from \(S\times\alpha\) onto \(a\). </p>

    Conclusion Statement
    Form 241 <p> Every algebraic closure of \(\Bbb Q\) has a real closed subfield. </p>

  • An (optional) implication of code 1 or code 2 is given. In this case, it's Code 2: 7879, whose string of implications is:
    233 \(\Rightarrow\) 242 \(\Rightarrow\) 241

The conclusion Form 191 \( \not \Rightarrow \) Form 233 then follows.

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

Name Statement
\(\cal N31\) L&auml;uchli's Model IV The set \(A\) is denumerable

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