December 2, 2010

How 'bout them apples?

From the wikipedia entry on the "Raven paradox", (also known as Hempel's paradox) a lovely pair of figure legends:

1 comment:

  1. I thought it was all worked out finally. Ravens are a set. Birds are a set which includes ravens. Apples are, fruit includes them, produce encompasses all. Warm-hearted mammals and hard-hearted grocers, everything has a set. This is easy. But is not a set also a set? Well ... yes. Then we have a set of the universe, including everything in it. And is not a set which includes everything also a set? I see. And is not a set within a set which includes everything not a set? Are you about through with that beer?



Blog Archive