7\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document} $$\begin{array}{@{}rcl@{}} D^{*}[a,b] &=& \sum_{v \in \mathcal{L} - \{a,b\}} \sum_{u \in \mathcal{L} - \{a,b,v\}} -\ln p(ab.uv) \end{array} $$ \end{document}D∗[a,b]=∑v∈ℒ−{a,b}∑u∈ℒ−{a,b,v}−lnp(ab.uv)