UCLA Olga Radko Endowed Math Circle

4/29/2012 -- LAMC Beginners: Proofs and Proving III: Contrapositive and Contradiction

We will look at some very useful tools in the proofmaker's toolkit: proof by contrapositive, and proof by contradiction. UPDATE 04/29: Homework for next week is to complete pages 1-4 of the handout (Proofs3), if not done already.