Differences
This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision | Last revision Both sides next revision | ||
|
topological_space [2014/10/25 16:48] nikolaj |
topological_space [2015/02/26 20:24] nikolaj |
||
|---|---|---|---|
| Line 7: | Line 7: | ||
| | @#55EE55: postulate | @#55EE55: $S$ ... finite $\Rightarrow \bigcap S\in \mathcal T$ | | | @#55EE55: postulate | @#55EE55: $S$ ... finite $\Rightarrow \bigcap S\in \mathcal T$ | | ||
| - | ==== Discussion ==== | + | ----- |
| We call $\mathcal T$ the topology and its elements the open (sub-)sets of $X$. | We call $\mathcal T$ the topology and its elements the open (sub-)sets of $X$. | ||
| Line 14: | Line 14: | ||
| ==== Reference ==== | ==== Reference ==== | ||
| Wikipedia: [[http://en.wikipedia.org/wiki/Topological_space|Topological space]] | Wikipedia: [[http://en.wikipedia.org/wiki/Topological_space|Topological space]] | ||
| - | ==== Parents ==== | + | |
| + | ----- | ||
| === Requirements === | === Requirements === | ||
| [[Arbitrary union]], [[Arbitrary intersection]] | [[Arbitrary union]], [[Arbitrary intersection]] | ||
