University of California, Berkeley: Philip Stark's SticiGui: "Chapter 14: Set Theory: The Language of Probability"
Read Chapter 14 to study the symbols used in set theory such as for denoting the union of two sets A and B to be A∩B. There are several exercises and Java applets embedded in the text that are meant to further reinforce your learning. Do not skip these exercises! For instructions on how to navigate these exercises, see "Special Instructions on SticiGui Exercises and Java Applets” in the "Course Information” section above.