Posted: Sep 17, 2015 11:15 pm
by ED209
Evolving wrote:I wouldn't say it was "trivial". It took Cantor to think of it!

Obviously, once you've seen it, it's natural to think, "I could have thought of that!"

In fact: see my sig.

Sure it's not trivial to discover, but once someone else had thought of it and you see it, it's trivial to grasp. Even memorable - and that's speaking as someone who's forgotten more mathematics than most people ever learn (but only because I learned a bit more than most people do and subsequently forgot all of it :lol: ) - making it a good thing to teach kids. The exam question was inexcusable, and can only be the result of a system that is staggeringly broken.