Differences
This shows you the differences between two versions of the page.
Both sides previous revision Previous revision | Last revision Both sides next revision | ||
category_of_open_sets [2014/10/28 22:23] nikolaj |
category_of_open_sets [2014/10/28 22:24] nikolaj |
||
---|---|---|---|
Line 8: | Line 8: | ||
==== Discussion ==== | ==== Discussion ==== | ||
- | In the category of open sets, if one object $U$ is subset of another $V$, i.e. $U\subseteq V$, the hom-set $\mathrm{Op}(X)[U,V]=\{i\}$ contains the only inclusion function and is empty otherwise. | + | In the category of open sets, if one object $U$ is subset of another $V$, i.e. $U\subseteq V$, then the hom-set $\mathrm{Op}(X)[U,V]=\{i\}$ contains the only inclusion function and is empty otherwise. |
=== Reference === | === Reference === |