Remark 5.1.4.10. In the statement of Proposition 5.1.4.9, the hypothesis that $\operatorname{\mathcal{C}}$ and $\operatorname{\mathcal{D}}$ are $\infty $-categories is superfluous: we will later show that every cartesian fibration of simplicial sets is an isofibration (Corollary 5.6.7.5).
$\Newextarrow{\xhookrightarrow}{10,10}{0x21AA}$