10/1/04:	Introduction to S_n
10/4/04:	Recap: What we know about S_n so far
10/6/04:	Restatement of relevant lemma and theorem
10/8/04:	Defining your first isomorphism
10/13/04:	Defining your first isomorphism (since we didn't get to it last time)
10/15/04:	Isomorphisms and Automorphisms
10/18/04:	Intro to Cosets
10/20/04:	Cosets in the integers
10/22/04:	Summary of Lagrange's Theorem and some of its corollaries
10/27/04:	Getting a feel for external direct products