Hypothesis: HR 217:

Every infinite partially ordered set has either an infinite chain or an infinite antichain.

Conclusion: HR 278:

In an integral domain \(R\), if every ideal is finitely generated then \(R\) has a maximal proper ideal. note 45 E.

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

Name Statement
\(\cal N1\) The Basic Fraenkel Model The set of atoms, \(A\) is denumerable; \(\cal G\) is the group of all permutations on \(A\); and \(S\) isthe set of all finite subsets of \(A\)

Code: 3

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