## Old Dominion University: Shunichi Toida's "Set Theory"

Read these pages, which discuss the basics of set theory. Note that there are three ways to define a set. The third method, recursion, will come up again later in the course, but this is a great time to learn it.

Click http://web.archive.org/web/20160417054637/http://www.cs.odu.edu/~toida/nerzic/content/set/intr_to_set.html link to open resource.