Question

Let A = {3, 4, 5} and B = {4, 5, 6, 12} and let S be the “divides” relation. That is, for all (x, y) ∈ A × B, x S y <-> x|y. State explicitly which ordered pairs are in S

Answer 1

3 divides 6, so certainly the order pair (3,6) will be in S. Can you name another one?

Answer 2

3,12?

Answer 3

right. another one?

Answer 4

s={(3,6),(3,12),(4,4),(4,12),(5,)}

Answer 5

OK I got it 3,6-3,12-4,4-4,12-5,5? is that correct

Answer 6

right. but put them in parenthesis since they are ordered pairs

Answer 7

correction (5,5)

Answer 8

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