On 5/21/2009 1:25 PM alexy spake thus:
Wrong. I asked for a proof, and that's exactly what I wanted. Didn't have to be a "2-column" proof[1], nor a particularly rigorous one, but I wanted a step-by-step proof, not just another redundant demonstration.
Please don't make assumptions like this. You're not a very good mind-reader.
[1] Having run across this term repeatedly while searching for geometry stuff on the web, it seems this has nothing whatever to do with formal mathematics, but is just the latest fashion for educator's preferred format for making schoolkids do geometry proofs.