Differences
This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision | |||
|
relation_concatenation [2013/09/05 22:33] nikolaj |
relation_concatenation [2013/09/05 22:33] nikolaj |
||
|---|---|---|---|
| Line 23: | Line 23: | ||
| If $f:X\to Y$ and $g:Y\to Z$ are functions, we'll often denote $f\circ g$ by $fg$. This convenient notation will also be used in more elaborate cases. For example, if by $f(x)$ we done the values of a function $f:X\to\mathbb R$ and $|\cdot|$ is the function which takes a real to its absolute value, then $|f|$ will denote the name of the function with values $|f(x)|$. | If $f:X\to Y$ and $g:Y\to Z$ are functions, we'll often denote $f\circ g$ by $fg$. This convenient notation will also be used in more elaborate cases. For example, if by $f(x)$ we done the values of a function $f:X\to\mathbb R$ and $|\cdot|$ is the function which takes a real to its absolute value, then $|f|$ will denote the name of the function with values $|f(x)|$. | ||
| ==== Context ==== | ==== Context ==== | ||
| - | Set constructor | + | === Requirements === |
| - | === Parents === | + | |
| [[Binary relation]] | [[Binary relation]] | ||
