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| author | joshuab <> | 2010-06-30 20:45:38 +0000 |
|---|---|---|
| committer | bnewbold <bnewbold@adelie.robocracy.org> | 2010-06-30 20:45:38 +0000 |
| commit | 9f0d89d5c2f47ec31f528dda1de6da6822602fee (patch) | |
| tree | 9b78a0d9a806ca8959f3f63e98cc9a0252f401c5 | |
| parent | 6ab26e586a997833727e12f02880efb0da4ce1c0 (diff) | |
| download | afterklein-wiki-9f0d89d5c2f47ec31f528dda1de6da6822602fee.tar.gz afterklein-wiki-9f0d89d5c2f47ec31f528dda1de6da6822602fee.zip | |
fixed typo
| -rw-r--r-- | Problem Set 2.page | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Problem Set 2.page b/Problem Set 2.page index 7a14581..d65f293 100644 --- a/Problem Set 2.page +++ b/Problem Set 2.page @@ -43,5 +43,5 @@ $\int_0^{2\pi} |\sin^2(x)|^2 dx = \sum |a_n|^2.$ Cardinality of the natural numbers (countable): $\mathbf{N}$,$\mathbf{Z}$ Cardinality of the real numbers (continuum): $\mathbf{R}$ -Proofs: +Proofs: - $\mathbf{Z}=\mathbf{N}$ under the bijection $n \mapsto 2n+1$ for nonnegative $n$ and $n \mapsto 2|n|$ for negative $n$. For example, ${-2,-1,0,1,2} \mapsto {4,2,1,3,5}$.
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