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Equivalence Relations

Equivalence Relations

Learn about equivalence relations.

Equivalence relation

A relation RR is an equivalence relation on set AA if it has the following three properties:

  • RR is reflexive, that is, for every element aa of AA, we have (a,a)(a,a) in RR.

  • RR is symmetric, that is, if (a,b)(a,b) is in RR, then (b,a)(b,a) is also in RR.

  • RR is transitive, that is, if (a,b)(a,b) and (b,c)(b,c) are in RR , then (a,c)(a,c) ...

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