What is the cardinality of the set of all normal functions $f \colon \omega_{\alpha} \to \omega_{\alpha}$, where $\omega_{\alpha}$ is the initial ordinal of $\aleph_{\alpha}$?
Cardinality of set of normal functions $f \colon \omega_{\alpha} \to \omega_{\alpha}$
1
$\begingroup$
set-theory
cardinals
ordinals
1 Answers
2
See mathoverflow.