Differences
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| Both sides previous revision Previous revision Next revision | Previous revision | ||
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union [2014/04/06 19:11] nikolaj |
union [2014/12/05 00:40] nikolaj |
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| ===== Union ===== | ===== Union ===== | ||
| ==== Set ==== | ==== Set ==== | ||
| - | | @#55CCEE: context | @#55CCEE: $X,Y$ ... small set | | + | | @#55CCEE: context | @#55CCEE: $X,Y$ ... set | |
| | @#FFBB00: definiendum | @#FFBB00: $ x\in X \cup Y $ | | | @#FFBB00: definiendum | @#FFBB00: $ x\in X \cup Y $ | | ||
| | @#55EE55: postulate | @#55EE55: $ x\in X\lor x\in Y $ | | | @#55EE55: postulate | @#55EE55: $ x\in X\lor x\in Y $ | | ||
| Line 14: | Line 14: | ||
| Wikipedia: [[http://en.wikipedia.org/wiki/Complement_%28set_theory%29|Union]] | Wikipedia: [[http://en.wikipedia.org/wiki/Complement_%28set_theory%29|Union]] | ||
| ==== Parents ==== | ==== Parents ==== | ||
| - | === Element of === | + | === Context === |
| - | [[Set universe]] | + | [[Sets]] |
| - | === Context* === | + | |
| - | [[Set universe]] | + | |
