>>483 つづき

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http://math.stackexchange.com/questions/371184/predicting-real-numbers
Predicting Real Numbers edited May 15 '13 Jared Mathematics Stack Exchange
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Here is an astounding riddle that at first seems impossible to solve. I'm certain the axiom of choice is required in any solution, and I have an outline of one possible solution, but would like to see how others might think about it.

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100 rooms each contain countably many boxes labeled with the natural numbers. Inside of each box is a real number. For any natural number n, all 100 boxes labeled n (one in each room) contain the same real number.
In other words, the 100 rooms are identical with respect to the boxes and real numbers.
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つづく