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We have the following indirect implication of form equivalence classes:

122 \(\Rightarrow\) 47-n given by the following sequence of implications, with a reference to its direct proof:

Implication	Reference
122 \(\Rightarrow\) 47-n	clear

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

Howard-Rubin Number	Statement
122:	\(C(WO,<\aleph_{0})\): Every well ordered set of non-empty finite sets has a choice function.
47-n:	If \(n\in\omega-\{0,1\}\), \(C(WO,n)\): Every well ordered collection of \(n\)-element sets has a choice function.

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