Strip #147
— Monday, May 21, 2007
Notes, Thoughts, &c.
Lewis's Notes
If you link us from your comic or website, please let me know, so I can give you a shout out, or link back, or what have you. If you read us, and don't link to us from your comic or website, now would be a good time to consider changing that.
The unity sound a lot like Vicki from "Small Wonder" in my head, but I'm not sure if that's even remotely canonical, so don't start writing fanfic with that presupposition.
Ben's Notes
Here's something cool I found out about on Wikipedia. Goodstein's theorem, which is that every Goodstein sequence converges to 0, has a pretty simple proof using infinite ordinals, but it can be shown to be unprovable within Peano arithmetic. It's a really natural-looking theorem as examples of undecidability go, and the proof using ordinals is easy to follow. The proof that it's unprovable in PA is trickier, unfortunately.