68P15-RelationConstruction.tex

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\pmtitle{relation construction}
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\textbf{Relation construction} and \textbf{relational constructibility} have to do with the ways that one relation is determined by an indexed family or a sequence of other relations, called the \textit{relation dataset}.  The relation dataset typically consists of a specified set of other relations, called the \textit{relational base} or the \textit{relational components}, plus a specified set of operations on relations, called the \textit{method of construction}. 

Relation composition and relation reduction are special cases of relation constructions.

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