Introduction to Higher Mathematics - Lecture 5: Set Theory

In this lecture we discuss the beginnings of set theory, a topic that runs throughout almost every area of mathematics. [NOTE: Please ignore the part about "sets cannot contain other sets". Since making this video I have included an annotation about how Russell's paradox can be avoided while still allowing sets to be included in other sets by using the standard axioms of Zermelo-Frankel set theory (ZFC).] http://www.polymathlectures.org/