Implications

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We have the following indirect implication of form equivalence classes:

427 \(\Rightarrow\) 67 given by the following sequence of implications, with a reference to its direct proof:

Implication	Reference
427 \(\Rightarrow\) 67	clear

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

Howard-Rubin Number	Statement
427:	\(\exists F\) AL20(\(F\)): There is a field \(F\) such that every vector space \(V\) over \(F\) has the property that every independent subset of \(V\) can be extended to a basis.  \ac{Bleicher} \cite{1964}, \ac{Rubin, H.\/Rubin, J \cite{1985, p.119, AL20}.
67:	\(MC(\infty,\infty)\) \((MC)\), The Axiom of Multiple Choice: For every set \(M\) of non-empty sets there is a function \(f\) such that \((\forall x\in M)(\emptyset\neq f(x)\subseteq x\) and \(f(x)\) is finite).

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