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extended_real_number_line [2013/08/04 16:44] nikolaj |
extended_real_number_line [2013/08/16 15:28] nikolaj |
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| ===== Extended real number line ===== | ===== Extended real number line ===== | ||
| ==== Definition ==== | ==== Definition ==== | ||
| - | | @#55EE55: $ \overline{\mathbb R} \equiv \mathbb R\cup{-\infty,\infty} $ | | + | | @#55EE55: $ \overline{\mathbb R} \equiv \mathbb R\cup\{-\infty,\infty\} $ | |
| >todo: model $-\infty$ and $\infty$ | >todo: model $-\infty$ and $\infty$ | ||
| - | ==== Ramifications ==== | + | ==== Discussion ==== |
| - | === Reference === | + | ==== Reference ==== |
| Wikipedia: [[http://en.wikipedia.org/wiki/Extended_real_number_line|Extended real number line]] | Wikipedia: [[http://en.wikipedia.org/wiki/Extended_real_number_line|Extended real number line]] | ||
| ==== Context ==== | ==== Context ==== | ||
| - | Set | + | === Requirements === |
| - | === Parents === | + | |
| [[Real number]] | [[Real number]] | ||
