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\title{BDD-Normalisation}
\author{Veronika Ortner and Norbert Schirmer}
\begin{abstract}
We present the verification of the normalisation of a binary decision
diagram (BDD). The normalisation follows the original algorithm
presented by Bryant in 1986 and transforms an ordered BDD in a
reduced, ordered and shared BDD. The verification is based on Hoare
logics.
\end{abstract}
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\section{Introduction}

In \cite{Ortner-Schirmer-TPHOL05} we describe the partial correctness proofs for
BDD normalisation. We extend this work to total correctness in these theories.


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