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external.tex
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external.tex
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% ----------------------------------------------------------------------
\begin{frame}{External atoms}
\begin{itemize}
\item \structure{External directive}
\medskip
\begin{itemize}
\item [] \texttt{\#external <atom> [ : <body> ]}
\end{itemize}
\medskip
where
\smallskip
\begin{itemize}
\item \texttt{<atom> [ : <body> ]} \qquad is a (conditional) literal
\end{itemize}
\bigskip
\item<2-> \structure{Example} \ \texttt{\#external mark(X,Y,p,t)\;:\;field(X,Y).}
\medskip
\item <3-> \structure{Note} \ External atoms are
\begin{itemize}
\item protected from program simplifications
\item assigned truth values via API (default: false)
\end{itemize}
and can be
\begin{itemize}
\item overwritten by adding rules defining the atom
\item permanently set to false
\end{itemize}
\end{itemize}
\end{frame}
% ----------------------------------------------------------------------
%
%%% Local Variables:
%%% mode: latex
%%% TeX-master: "../../main"
%%% End: