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The inverse of a relation is obtained by swapping the pairs in the relation. If a relation ( R ) consists of pairs ((a, b)), then its inverse ( R^{-1} ) consists of pairs ((b, a)) for all pairs in ( R ). This means that if ( a ) is related to ( b ) in ( R ), then ( b ) will be related to ( a ) in ( R^{-1} ). The inverse relation effectively reverses the direction of the relationship between the elements.

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