1 Let A be the set of all integers = {...,-3,-2,-1,0,1,2,3,...}. Define the relation R on A as follows: (x,y) = R if and only if |x - y = 1. In each part, answer yes or no. If yes, then explain why in terms of this specific relation about absolute value (not just by stating the generic definition of the property). If you say no, give a specific counterexample to explain why. a) Is R reflexive?

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