Question: Let R A A be a binary relation as dened below. In which cases is R a partial order? a total order? (a) A =

Let R A A be a binary relation as dened below. In which cases is R a partial order? a total order? (a) A = the positive integers; (a, b) R if and only if b is divisible by a. (b) A = N; (a, b) R if and only if b = a or b = a + 1.

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