Implications

We have the following indirect implication of form equivalence classes:

161 \(\Rightarrow\) 161
given by the following sequence of implications, with a reference to its direct proof:

Implication Reference
161 \(\Rightarrow\) 161

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

Howard-Rubin Number Statement
161:

Definability of cardinal addition in terms of \(\le\): There is a first order formula whose only non-logical symbol is \( \le \) (for cardinals) that defines cardinal addition.

161:

Definability of cardinal addition in terms of \(\le\): There is a first order formula whose only non-logical symbol is \( \le \) (for cardinals) that defines cardinal addition.

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