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This non-implication, Form 250 \( \not \Rightarrow \) Form 342-n, whose code is 6, is constructed around a proven non-implication as follows:
Note: This non-implication is actually a code 4, as this non-implication satisfies the transferability criterion. Click Transfer details for all the details)

• An (optional) implication of code 1 or code 2 is given. In this case, it's Code 2: 8942, whose string of implications is: 322 \(\Rightarrow\) 324 \(\Rightarrow\) 327 \(\Rightarrow\) 250
• A proven non-implication whose code is 5. In this case, it's Code 3: 651, Form 322 \( \not \Rightarrow \) Form 342-n whose summary information is:
  

  Hypothesis	Statement
  Form 322	<p> \(KW(WO,\infty)\), <strong>The Kinna-Wagner Selection Principle for a well ordered family of sets:</strong> For every  well ordered set \(M\) there is a function \(f\) such that for all \(A\in M\), if \(|A|>1\) then \(\emptyset\neq f(A)\subsetneq A\).  (See <a href="/form-classes/howard-rubin-15">Form 15</a>). </p>

  
  

  Conclusion	Statement
  Form 342-n	<p> (For \(n\in\omega\), \(n\ge 2\).) \(PC(\infty,n,\infty)\):  Every infinite family of \(n\)-element sets has an infinite subfamily with a choice function. (See <a href="/form-classes/howard-rubin-166">Form 166</a>.) </p>

  
  
• This non-implication was constructed without the use of this last code 2/1 implication

The conclusion Form 250 \( \not \Rightarrow \) Form 342-n then follows.

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

Name	Statement
\(\cal N50(E)\) Brunner's Model III	\(E\) is a finite set of prime numbers.For each \(p\in E\) and \(n\in\omega\), let \(A_{p,n}\) be a set of atoms ofcardinality \(p^n\)