Let R be a relation from Q to Q defin...

Let R be a relation from Q to Q defined by `R" "=" "{(a ," "b)" ":" "a` , `b in Q" "a n d" "a ," "b in Z}` . Show that (i) `{a ," "a) in R" "for" "a l l" "a in Q` (ii) `(a ," "b) R" "i m p l i e s" "t h a t" "(b ," "a) in R` (iii)

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