Theorem 19.5.4014121F7F4FC5

\begin{equation} \Delta _{Y_{\bullet }}(T)=\overline{\left\{ \nu _{Y_{\bullet }}(S):S\in \mathcal{Z}_+(X,\alpha ),S\preceq _{\mathcal{I}}T\right\} }. \end{equation}

\begin{equation} \Delta _{Y_{\bullet }}(\alpha )=\overline{\left\{ \nu _{Y_{\bullet }}(S):S\in \mathcal{Z}_+(X,\alpha )\right\} }. \end{equation}