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Asymmetric symmetric asymmetric difference?

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What is meant by antisymmetric , asymmetric ? Any clear difference regarding symmetric, antisymmetric nd asymmetric regarding graph nd example?
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self loop are allowed in antisymmetic .

R=$\left \{ (1,2)(2,3) (2,2)(3,3)\right \}$ ------> antisymmetric .

R=$\left \{ (1,2)(2,3) \right \}$ --------> asymmetric and antisymmetric

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