Day 21 mat385

• Announcements
  • Sorry, I haven't graded Homework 2.6 yet.

  • Your homework for 4.1 (due 3/18)

• A last comment on section 3.1: Sets

• Any trouble with your set homework? It's due next time....

• Let's take a look at section 4.1: Relations

Links:

• A nice Venn diagram applet (for the basic ideas).
• A proof that some infinite sets are bigger than others.