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\title{Real-Time Double-Ended Queue}
\author{Balazs Toth and Tobias Nipkow\\Technical University of Munich}
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\begin{abstract}
A double-ended queue (\emph{deque}) is a queue where one can
enqueue and dequeue at both ends. We define and verify the deque
implementation by Chuang and Goldberg \cite{ChuangG93}. It is purely functional and all
operations run in constant time.
\end{abstract}

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