Example 4.8.1.9. A simplicial set $\operatorname{\mathcal{C}}$ is a $(-1,1)$-category if and only if it is either empty or isomorphic to $\Delta ^0$. See Example 3.5.4.4.
$\Newextarrow{\xhookrightarrow}{10,10}{0x21AA}$
Example 4.8.1.9. A simplicial set $\operatorname{\mathcal{C}}$ is a $(-1,1)$-category if and only if it is either empty or isomorphic to $\Delta ^0$. See Example 3.5.4.4.