Implications

This non-implication, Form 95-F \( \not \Rightarrow \) Form 347, 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: 242, Form 95-F \( \not \Rightarrow \) Form 358 whose summary information is:
    Hypothesis Statement
    Form 95-F <p> <strong>Existence of Complementary Subspaces over a Field \(F\):</strong> If \(F\) is a field, then every vector space \(V\) over \(F\) has the property that if \(S\subseteq V\) is a subspace of \(V\), then there is a subspace \(S'\subseteq V\) such that \(S\cap S'= \{0\}\) and \(S\cup S'\) generates \(V\). <a href="/books/10">H. Rubin/J. Rubin [1985]</a>, pp 119ff, and <a href="/books/8">Jech [1973b]</a>, p 148 prob 10.4. </p>

    Conclusion Statement
    Form 358 <p> \(KW(\aleph_0,<\aleph_0)\), <strong>The Kinna-Wagner Selection Principle</strong> for a denumerable family of finite sets: For every denumerable set \(M\) of finite sets there is a function \(f\) such that for all \(A\in M\), if \(|A| > 1\) then \(\emptyset\neq f(A)\subsetneq A\). </p>

  • An (optional) implication of code 1 or code 2 is given. In this case, it's Code 2: 2860, whose string of implications is:
    347 \(\Rightarrow\) 40 \(\Rightarrow\) 39 \(\Rightarrow\) 8 \(\Rightarrow\) 9 \(\Rightarrow\) 10 \(\Rightarrow\) 358

The conclusion Form 95-F \( \not \Rightarrow \) Form 347 then follows.

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

Name Statement
\(\cal N6\) Levy's Model I \(A=\{a_n : n\in\omega\}\) and \(A = \bigcup \{P_n: n\in\omega\}\), where \(P_0 = \{a_0\}\), \(P_1 = \{a_1,a_2\}\), \(P_2 =\{a_3,a_4,a_5\}\), \(P_3 = \{a_6,a_7,a_8,a_9,a_{10}\}\), \(\cdots\); in generalfor \(n>0\), \(|P_n| = p_n\), where \(p_n\) is the \(n\)th prime

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