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Prove that every identity relation on a ...

Prove that every identity relation on a set is reflexive, but the converse is not necessarily true.

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Let` A={a,b,c}`
Let `I_A` is an identity relation of `A.`
Then, `I_A ={(a,a),aϵA}
` So, identity relation will be reflexive.
Let R be reflexive relation such that
...
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