Equation 19.4.4905403B615855

\begin{equation} \operatorname{vol}\Delta '\leq \frac{1}{n!} \int _ X \left(N^{-1}\omega +\theta +\mathrm{dd}^{\mathrm{c}}P_{N^{-1}\omega +\theta }[\varphi ]_{\mathcal{I}}\right)^ n. \end{equation}