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We have the following indirect implication of form equivalence classes:

85 \(\Rightarrow\) 150 given by the following sequence of implications, with a reference to its direct proof:

Implication	Reference
85 \(\Rightarrow\) 150	clear

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

Howard-Rubin Number	Statement
85:	\(C(\infty,\aleph_{0})\):  Every family of denumerable sets has  a choice function.  Jech [1973b] p 115 prob 7.13.
150:	\(PC(\infty,\aleph_0,\infty)\): Every infinite set of denumerable sets has an infinite subset with a choice function.

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