https://www.slader.com/textbook/9781259676512-discrete-mathematics-and-its-applications-8th-edition/
9.6:
Which of these relations on{0,1,2,3}are partial order-ings? Determine the properties of a partial ordering that the others lack.
Is (S, R)aposetifSis the set of all people in the worldand (a, b)∈R,whereaandbare people, if
6
9-11