Equation 17.10.308AE427F2EF68

\begin{equation} s\sup _{\{ \varphi _0\neq -\infty \} }(\varphi _1-\varphi _0)=\sup _{\{ \varphi _0\neq -\infty \} }(\varphi _ s-\varphi _0) \end{equation}