%% 
%%  Ein Beispiel der DANTE-Edition
%%  Mathematiksatz mit LaTeX
%%  3. Auflage
%%  Beispiel 03-06-4 auf Seite 31.
%%  Copyright (C) 2018 Herbert Voss
%% 
%%  It may be distributed and/or modified under the conditions
%%  of the LaTeX Project Public License, either version 1.3
%%  of this license or (at your option) any later version.
%%  See http://www.latex-project.org/lppl.txt for details.
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\documentclass[10pt]{screxa}
\pagestyle{empty}
\setlength\textwidth{352.81416pt}
\usepackage[utf8]{inputenc}
\usepackage[ngerman]{babel}
\setcounter{equation}{32}
\renewcommand\theequation{3.\arabic{equation}}
\setlength\parindent{0pt}
%StartShownPreambleCommands

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\begin{document}
\begin{displaymath}
MR(e) = \prod_{(R_i\cdot ID, R_j\cdot ID)}
   \mathop{(R_i\bowtie R_j)}\limits_{\mathop{Dist}_{sp}(r_i,r_j)\le\delta}
\end{displaymath}	
\end{document}
