Hartogs number
= Hartogs number
{c}
{title2=$h(X)$}
{wiki}
= Hartogs ordinal
{c}
{synonym}
The least <ordinal> that does not admit an <injection> into $X$. Its existence, supplied by <Hartogs theorem>, does not require the <axiom of choice>.
= Hartogs number
{c}
{title2=$h(X)$}
{wiki}
= Hartogs ordinal
{c}
{synonym}
The least <ordinal> that does not admit an <injection> into $X$. Its existence, supplied by <Hartogs theorem>, does not require the <axiom of choice>.