Dene the relation M(A,B) : AB = , where the domains for A and B are all subsets of Z. Which properties does the relation M satisfy? Hint: This problem causes a lot of grief. The relation M is a relation between subsets of Z. For example, {1,2}M{9} is true, since {1,2}{9} = . But {1,2}M{2,4,6,7} is false since {1,2}{2,4,6,7} = {2}, and not .