Equation 17.10.351B22CF257482

\begin{equation} \sup _{X\setminus Z} (\varphi _1-\varphi _ s)\leq (1-s)\adjustlimits \sup _{x\in X\setminus Z}\lim _{t\to 1-}\frac{\varphi _1(x)-\varphi _ t(x)}{1-t}\leq (1-s)C. \end{equation}