Let the universe of discourse be the set of relations on the set A. Write the following English sentences as a logical expression, using quantifers, logical expressions, and set notation (a) A...

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Extracted text: Let the universe of discourse be the set of relations on the set A. Write the following English sentences as a logical expression, using quantifers, logical expressions, and set notation (a) A symmetric relation on a set A is not necessarily reflexive (b) Every reflexive relation is anti-symmetric