Differences
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singleton [2014/11/05 21:43] nikolaj |
singleton [2014/12/05 01:03] nikolaj |
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| ===== Singleton ===== | ===== Singleton ===== | ||
| ==== Set ==== | ==== Set ==== | ||
| - | | @#55CCEE: context | @#55CCEE: $ X $ | | + | | @#55CCEE: context | @#55CCEE: $ X $ ... set | |
| | @#FF9944: definition | @#FF9944: $ \{X\} \equiv \{X,X\} $ | | | @#FF9944: definition | @#FF9944: $ \{X\} \equiv \{X,X\} $ | | ||
| Line 8: | Line 8: | ||
| Wikipedia: [[http://en.wikipedia.org/wiki/Singleton_%28mathematics%29|Singleton]] | Wikipedia: [[http://en.wikipedia.org/wiki/Singleton_%28mathematics%29|Singleton]] | ||
| ==== Parents ==== | ==== Parents ==== | ||
| - | === Context === | + | === Context* === |
| + | [[Sets]] | ||
| + | === Requirements === | ||
| [[Unordered pair]] | [[Unordered pair]] | ||
