Mother nature has been working to get southern California’s rainfall back up to average, and I’ve been working overtime to deal with it. Consequently, I’m tired. Jan made a squirrel, and I’ve dusted off an old favorite proof.

**Irrationality of Non-Square Radicals**

I was first introduced to this line of reasoning as a proof that is irrational. However, the concept is easily generalized to all non-square radicals. The proof follows the same reductio ad absurdum model, with the added assumption that . Continue reading