Hypothesis: HR 3:  \(2m = m\): For all infinite cardinals \(m\), \(2m = m\).

Conclusion: HR 88:

  \(C(\infty ,2)\):  Every family of pairs has a choice function.

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

Name Statement
\(\cal N9\) Halpern/Howard Model \(A\) is a set of atoms with the structureof the set \( \{s : s:\omega\longrightarrow\omega \wedge (\exists n)(\forall j > n)(s_j = 0)\}\)

Code: 5

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