An Introduction to Relations

A detailed tutorial on the introduction to relations. Step by step tutorial including several examples of the introduction to relations for reference.

A relation is defined as an ordered pair. However, that is not entirely accurate. A relation could either be an ordered pair or a set of ordered pairs.  A relation can be used with either one or more normal sets, or one Cartesian product set. When used with a normal set, it is a set of ordered pairs. When used with a Cartesian product, it is the power set of that set.

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