Relational System

A relational system is a structure R=(S,{P_i:i in I},{f_j:j in J}) consisting of a set S, a collection of relations P_i(i in I) on S, and a collection of functions f_j(j in J) on S.

This entry contributed by Viktor Bengtsson

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Bengtsson, Viktor. "Relational System." From MathWorld--A Wolfram Web Resource, created by Eric W. Weisstein.

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