curr goto [[관계,relation#s-5]]

[[비공집합,nonempty_set]]에 대한 [[관계,relation]]에서 ..... 이런 세 조건을 만족하면 이거? chk
 [[반사성,reflexivity]]
 [[대칭성,symmetry]]
 [[추이성,transitivity]]

MKLINK
[[행동치,row_equivalence]]

Bmks ko
https://chocobear.tistory.com/19

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https://everything2.com/title/Equivalence+relation (Good)
https://proofwiki.org/wiki/Definition:Equivalence_Relation

[[Libre:동치관계]]
https://artofproblemsolving.com/wiki/index.php/Equivalence_relation
https://en.citizendium.org/wiki/Equivalence_relation
https://encyclopediaofmath.org/wiki/Equivalence_relation

분류
'''동치관계'''는 [[이항관계,binary_relation]]의 일종.