Kerodon

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

Remark 1.1.3.5. Let $k$ be an integer. If a simplicial set $S$ has dimension $\leq k$, then every simplicial subset of $S$ has dimension $\leq k$ (see Remark 1.1.2.5).