1. Read pp. 129-130 and then reread Proposition 2 and its proof.

2. Now write a Scholium, i.e. an explanation or clarification, of no more than 300 words that begins as follows: "For those who may not see how this proposition follows from the definitions, ...."

Extra directions: Complete this homework on separate paper. Put your name on this sheet and staple this sheet to your answers. Remember to pledge your work!

Due: Thursday, Feb. 5th, at the beginning of class.