$\Newextarrow{\xhookrightarrow}{10,10}{0x21AA}$
8.27
\begin{equation} \begin{gathered}\label{equation:cospan-cartesian-fibration} \xymatrix@C =50pt@R=50pt{ \Lambda ^{n}_{n} \ar [r]^-{h_0} \ar [d] & \operatorname{Pith}(\operatorname{Cospan}^{ \widetilde{L}, \widetilde{R} }(\operatorname{\mathcal{E}})) \ar [d]^{U'} \\ \Delta ^{n} \ar@ {-->}[ur]^{h} \ar [r]^-{ \overline{h} } & \operatorname{Pith}(\operatorname{Cospan}^{L, R}( \operatorname{\mathcal{C}}), } \end{gathered} \end{equation}