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The maximum number of equivalence relations on the set `A = {phi , {phi}, {{phi}}}` areA. 1B. 2C. 3D. 5 |
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Answer» Correct Answer - D The maximum number ………… Possible equavalence relations A are as follows `R_(1)= {(phi, phi), ({phi}, {phi}), ({{phi}}, {{phi}})}` `R_(2)= R_(1)uu {(phi, {phi}), ({phi}, phi)}` `R_(3)= R_(1)uu {(phi, {{phi}}), ({{phi}}, phi)}` `R_(4)= R_(1)uu {({phi}, {{phi}}), {phi})}` `R_(5)= AxxA` (universal relation) |
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