Kerodon

$\Newextarrow{\xRightarrow}{5,5}{0x21D2}$ $\newcommand\empty{}$
$\Newextarrow{\xhookrightarrow}{10,10}{0x21AA}$

Warning 9.2.8.8. In the statement of Corollary 9.2.8.7, the assumption that $\kappa $ is uncountable cannot be omitted.