Set Theory Crossword Puzzle

QUESTIONS LIST: union : objects that belong to set a or set b, set : a collection of elements, intersection : objects that belong to set a and set b, superset : a is a superset of b, set a includes set b, equality : both sets have the same members, cardinality : the number of elements of set a, empty set : Ø = { }, element of : set membership, subset : a is a subset of b, set a is included in set b, complement: all the subjects that do not belong to set a, proper superset : a is a superset of b, but b is not equal to a, ordered pair : collection of 2 elements, universal set : set of all possible values, power set : all subsets of a