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Answers for “为什么普通的相等关系是等价关系?”

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Understand why

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Ordinary equality on numbers is an equivalence relation because it satisfies the three required properties: reflexivity, symmetry, and transitivity.

Conditions: Equality is viewed as a relation on numbers.; The relation must be checked against the three properties of an equivalence relation.

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An equivalence relation on a set is a relation that is reflexive, symmetric, and transitive.

Conditions: The relation must be defined on a set.; The relation must satisfy all three properties: reflexivity, symmetry, and transitivity.