# Kerodon

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

Remark 6.3.6.4. Let $f: X \rightarrow S$ be a universally localizing morphism of simplicial sets. Then $f$ is a weak homotopy equivalence (see Remark 6.3.1.16).