\subsection{$||$}
\label{labor}
\noindent Name: \textbf{$||$}\\
\phantom{aaa}boolean OR operator\\[0.2cm]
\noindent Library name:\\
\verb|   sollya_obj_t sollya_lib_or(sollya_obj_t, sollya_obj_t)|\\[0.2cm]
\noindent Usage: 
\begin{center}
\emph{expr1} \textbf{$||$} \emph{expr2} : (\textsf{boolean}, \textsf{boolean}) $\rightarrow$ \textsf{boolean}\\
\end{center}
Parameters: 
\begin{itemize}
\item \emph{expr1} and \emph{expr2} represent boolean expressions
\end{itemize}
\noindent Description: \begin{itemize}

\item \textbf{$||$} evaluates to the boolean OR of the two
   boolean expressions \emph{expr1} and \emph{expr2}. \textbf{$||$} evaluates to 
   true iff at least one of \emph{expr1} or \emph{expr2} evaluates to true.
\end{itemize}
\noindent Example 1: 
\begin{center}\begin{minipage}{15cm}\begin{Verbatim}[frame=single]
> false || false;
false
\end{Verbatim}
\end{minipage}\end{center}
\noindent Example 2: 
\begin{center}\begin{minipage}{15cm}\begin{Verbatim}[frame=single]
> (1 == exp(0)) || (0 == log(1));
true
\end{Verbatim}
\end{minipage}\end{center}
See also: \textbf{$\&\&$} (\ref{laband}), \textbf{!} (\ref{labnot})
