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Definition: Inverse Relation

Every binary relations $R\subseteq S\times T$ has an inverse relation $R^{-1}\subseteq T\times S$ which is defined by the equivalence $$tR^{-1}s\Leftrightarrow sRt$$
for all $s\in S$ and $t\in T.$

| | | | | Contributors: bookofproofs | References: [573]


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Bibliography (further reading)

[573] Schmidt Gunther, Ströhlein Thomas: “Relationen und Graphen”, Springer-Verlag, 1989

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