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Usual definitions on binary relations.


\begin{definition}[]~
\begin{center}%
\afdmath{}\text{\rm transitive}\hspace{0.2...
...Verb{Verb}¶transitive D R¶\marginpar{\UseVerb{Verb}}\end{center}\end{definition}


\begin{definition}[]~
\begin{center}%
\afdmath{}\text{\rm reflexive}\hspace{0.2e...
...eVerb{Verb}¶reflexive D R¶\marginpar{\UseVerb{Verb}}\end{center}\end{definition}


\begin{definition}[]~
\begin{center}%
\afdmath{}\text{\rm anti}.\text{\rm reflex...
...{Verb}¶anti.reflexive D R¶\marginpar{\UseVerb{Verb}}\end{center}\end{definition}


\begin{definition}[]~
\begin{center}%
\afdmath{}\text{\rm symmetric}\hspace{0.2e...
...eVerb{Verb}¶symmetric D R¶\marginpar{\UseVerb{Verb}}\end{center}\end{definition}


\begin{definition}[]~
\begin{center}%
\afdmath{}\text{\rm anti}.\text{\rm symmet...
...{Verb}¶anti.symmetric D R¶\marginpar{\UseVerb{Verb}}\end{center}\end{definition}


\begin{definition}[]~
\begin{center}%
\afdmath{}\text{\rm preorder}\hspace{0.2em...
...veVerb{Verb}¶preorder D R¶\marginpar{\UseVerb{Verb}}\end{center}\end{definition}


\begin{definition}[]~
\begin{center}%
\afdmath{}\text{\rm strict}.\text{\rm orde...
...rb{Verb}¶strict.order D R¶\marginpar{\UseVerb{Verb}}\end{center}\end{definition}


\begin{definition}[]~
\begin{center}%
\afdmath{}\text{\rm order}\hspace{0.2em} \...
...\SaveVerb{Verb}¶order D R¶\marginpar{\UseVerb{Verb}}\end{center}\end{definition}


\begin{definition}[]~
\begin{center}%
\afdmath{}\text{\rm equivalence}\hspace{0....
...erb{Verb}¶equivalence D R¶\marginpar{\UseVerb{Verb}}\end{center}\end{definition}


\begin{definition}[]~
\begin{center}%
\afdmath{}\text{\rm total}\hspace{0.2em} \...
...\SaveVerb{Verb}¶total D R¶\marginpar{\UseVerb{Verb}}\end{center}\end{definition}


\begin{definition}[]~
\begin{center}%
\afdmath{}\text{\rm strict}.\text{\rm tota...
...rb{Verb}¶strict.total D R¶\marginpar{\UseVerb{Verb}}\end{center}\end{definition}


\begin{definition}[]~
\begin{center}%
\afdmath{}\text{\rm well}.\text{\rm founde...
...rb{Verb}¶well.founded D R¶\marginpar{\UseVerb{Verb}}\end{center}\end{definition}


\begin{definition}[]~
\begin{center}%
\afdmath{}\text{\rm well}.\text{\rm order}...
...Verb{Verb}¶well.order D R¶\marginpar{\UseVerb{Verb}}\end{center}\end{definition}


\begin{fact}[ Some properties of well founded relations. ]\hspace{1cm}
\begin{it...
...endprettybox{}\right)\endprettybox{}\endafdmmath{}}
\par
\end{itemize}\end{fact}

The booleanChristophe Raffalli, Paul RoziereParis VII, Paris XII university



Christophe Raffalli 2005-03-02