\documentclass[fleqn,leqno]{article}
\usepackage{hypertlabook}
\pdftitle{ASCII Text}
\fixverbatim
\begin{popup}
\begin{verbatim*}
Cand == {Votes[1][i] : i \in 1..Len(Votes[1])}
\end{verbatim*}
\end{popup}
\makeasciipopup