Implications

We have the following indirect implication of form equivalence classes:

31 \(\Rightarrow\) 31
given by the following sequence of implications, with a reference to its direct proof:

Implication Reference
31 \(\Rightarrow\) 31 Ein Beitrag zur Mannigfaltigkeitslehre, Cantor, G. 1878, J. Reine Angew. Math.

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

Howard-Rubin Number Statement
31:

\(UT(\aleph_{0},\aleph_{0},\aleph_{0})\): The countable union theorem:  The union of a denumerable set of denumerable sets is denumerable.

31:

\(UT(\aleph_{0},\aleph_{0},\aleph_{0})\): The countable union theorem:  The union of a denumerable set of denumerable sets is denumerable.

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