暇つぶし2chat MATH

- 暇つぶし2ch352: 引用されており、かれの”Here’s a puzzle”の元ネタと思われる。（参考）（>>258より） https://mathoverflow.net/questions/151286/probabilities-in-a-riddle-involving-axiom-of-choice Probabilities in a riddle involving axiom of choice edited Dec 9 '13 (抜粋) 2 This is beyond mind-boggling! What is the source of this riddle? Did you come up with it? I'll probably want to write about it at some point. The version with infinitely many people (where all but finitely many guess correctly) is described on Michael O'Connor's blog, xorshammer.com/2008/08/23/set-theory-and-weather-prediction and in C.S. Hardin and A.D. Taylor, "A Peculiar Connection Between the Axiom of Choice and Predicting the Future", Am. Math. Monthly 115, (February 2008), 91-96, where it is attributed to Yuval Gabay and Michael O'Connor. ? Johan Wastlund Dec 17 '13 at 12:47 (引用終わり) 以上