Form equivalence class Howard-Rubin Number: 5
Statement: Partial Choice for Countable Families of Countable Sets of Reals: Every countable family of non-empty countable sets of real numbers has an infinite subset with a choice function. (See the proof of the equivalence of 94 and [94 N].) \ac{Howard/Keremedis/Rubin/Stanley/Tachtsis} \cite{1999} \medskip
Howard-Rubin number: 5 A
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