Hi again folks. I don’t want you to think I forgot about my little blog here. I’ve just been off for a pretty major competitive-pinball event the past week and that and a visit to the Kennywood amusement park slurped up all my writing time. Should be recovered soon enough.
I’ll be back to posting original stuff soon enough, and to posting links to other people’s stuff. But for now I wanted to gather links to all the Theorem Thursday now that the project’s safely at its pre-announced conclusion. I’ve have thoughts about what it all meant soon, too.
Over June and July I put up rather extended posts about:
- The Intermediate Value Theorem, or why cars won’t always be terribly hot or cold.
- What Is Cramer’s Rule? (It’s a mathematics thing.) And does anyone love it? (No.)
- One Mean Value Theorem Of Many and I never did get around to others.
- A First Fixed Point Theorem and I never did get around to the one I had a charming anecdote about.
- Liouville’s Approximation Theorem And How To Make Your Own Transcendental Number which is a pretty snappy title for how nerdy it is.
- The Jordan Curve Theorem where I got I got so busy drawing a maze that I forgot to give it a snappy title. Sorry.
- The Five-Color Map Theorem in which I pick fights with all of New England.
- Kuratowski’s Reduction Theorem and Playing With Gas Pipelines and don’t tell me there isn’t a decent handheld game implicit in this post.
- Tutte’s Theorem, Magic, And Happy Endings from certain points of view.
I do figure on returning to these long-form explanations of theorems, so that Mean Value Theorem and Fixed Point Theorem stuff shouldn’t be left dangling forever. I don’t know just when I will, though. I’ll discuss why that is in my “what-did-I-learn” post, when I have the chance.
nebusresearch 
So good! I’m torn between wanting to hear more about major pinball competitions and how you picked a fight with all of New England… One thing at a time.
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Well, thank you. The New England thing is just all the jokes I tossed off along the way to explaining the five-color map theorem. There’s a lot of contended boundaries there and erasing them for one reason or another is good for stirring up trouble. (I’m not above this sort of thing. I’m from New Jersey, so there is a very long and rather sad history of fights over the state’s basic dignity, mostly against New York. But there’s room for other squabbles, as seen by the land border Delaware has the gall to claim from the Garden State.)
I’d love to talk more about the mathematics of pinball competitions although I’ve already used the best discussion topic, detailed balance. There’s probably more, though.
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