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On (A={2,4,6}), (R={(a,b):a<b}). Why is (R) not reflexive?

Answer and explanation

Correct answer: Because (a<a) is never true

Step 1: Reflexivity requires ((a,a)). Step 2: The condition (a<a) is false for every (a), so no diagonal pair appears. Step 3: Strict inequality relations are usually not reflexive.

Related tags

RelationsFunctionsReflexive RelationStrict InequalityHardReflexive RelationRelations And FunctionsMathematics

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