We have the following indirect implication of form equivalence classes:

112 \(\Rightarrow\) 112
given by the following sequence of implications, with a reference to its direct proof:

Implication Reference
112 \(\Rightarrow\) 112 The axiom of choice and linearly ordered sets, Howard, P. 1977, Fund. Math.

Here are the links and statements of the form equivalence classes referenced above:

Howard-Rubin Number Statement
112:

\(MC(\infty,LO)\): For every family \(X\) of non-empty sets each of which can be linearly ordered there is a function \(f\) such that for all \(y\in X\), \(f(y)\) is a non-empty finite subset of \(y\).

112:

\(MC(\infty,LO)\): For every family \(X\) of non-empty sets each of which can be linearly ordered there is a function \(f\) such that for all \(y\in X\), \(f(y)\) is a non-empty finite subset of \(y\).

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