Kerodon

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

Definition 1.2.6.7. A category $\operatorname{\mathcal{C}}$ is free if it is isomorphic to $\operatorname{Path}[G]$, for some directed graph $G$.