Implications

This non-implication, Form 113 \( \not \Rightarrow \) Form 218, 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: 3401, whose string of implications is:
    202 \(\Rightarrow\) 40 \(\Rightarrow\) 43 \(\Rightarrow\) 113
  • A proven non-implication whose code is 5. In this case, it's Code 3: 529, Form 202 \( \not \Rightarrow \) Form 67 whose summary information is:
    Hypothesis Statement
    Form 202 <p> \(C(LO,\infty)\): Every linearly ordered family of non-empty sets has  a choice function. </p>

    Conclusion Statement
    Form 67 <p> \(MC(\infty,\infty)\) \((MC)\), <strong>The Axiom of Multiple Choice:</strong> For every set \(M\) of non-empty sets there is a function \(f\) such that \((\forall x\in M)(\emptyset\neq f(x)\subseteq x\) and \(f(x)\) is finite). </p>

  • An (optional) implication of code 1 or code 2 is given. In this case, it's Code 2: 10126, whose string of implications is:
    218 \(\Rightarrow\) 67

The conclusion Form 113 \( \not \Rightarrow \) Form 218 then follows.

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

Name Statement
\(\cal N12(\aleph_1)\) A variation of Fraenkel's model, \(\cal N1\) Thecardinality of \(A\) is \(\aleph_1\), \(\cal G\) is the group of allpermutations on \(A\), and \(S\) is the set of all countable subsets of \(A\).In \(\cal N12(\aleph_1)\), every Dedekind finite set is finite (9 is true),but the \(2m=m\) principle (3) is false

Edit | Back