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Darren New <dne### [at] sanrrcom> wrote:
> Stuff like proofs that the number of real numbers 0 <= N < 1 is larger
> than the number of positive integers.
> Map each real number to a positive integer. Now for each number, take
> the real number whose first digit differs from the first digit of the
> first real, whose second digit differs from the second digit of the
> second real, etc. You've just constructed a real which is, by
> construction, not on your list that maps all real numbers to integers.
I think that the concept you are trying to explain could become clearer
if you also prove why the amount of rational numbers between 0 and 1 is
the *same* as the amount of integers. (In other words, each rational
number can be uniquely mapped to an integer, and there are no rational
numbers that can't be.)
--
- Warp
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