Example 1.1.4.2. For every simplicial set $S$, the $k$-skeleton $\operatorname{sk}_{k}( S)$ is empty for $k < 0$.
$\Newextarrow{\xhookrightarrow}{10,10}{0x21AA}$
Example 1.1.4.2. For every simplicial set $S$, the $k$-skeleton $\operatorname{sk}_{k}( S)$ is empty for $k < 0$.