Let A = {all real numbers between 0 and 2)} and B = {all real numbers less than I) Use intervals to describe both sets Find A B Find A B Find A - B Find B - A Find A B Find B A Show that A B = (A B) - (A B) Let |A| denote the number of elements in A (which is called the cardinality of A) For example, | {1, 2, 3}| = 3 Give an example of a set for which |A| = infinity (infinite set)