God Plays Dice

Yet another Congressional redistricting proposal , from Brian Olson . This proposal is based on the theory that the "best" distric...

From Courtney Gibbons' Brown Sharpie: the Bananach-Tarski theorem . This tells us that a banana can, through some sort of magic, be mad...

Today is Rosh Hashanah, the Jewish New Year. The Hebrew calendar is a lunisolar calendar, which means that the months remain roughly in step...

Yesterday, a student asked me if there was a geometric interpretation of the dot product of vectors. I had been talking about the geometric...

A friend of mine asked today: if a coupon says it expires on a certain date, is that the last date that it's usable, or the first date t...

Asimov on large numbers , including Skewes' number. (By the way, Skewes is pronounced in two syllables , which I didn't know, and L...

The following is exercise 1.1.2 of "A Mathematical Introduction to Logic", by Herbert Enderton: Show that there are no [well-forme...