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reversed_relation [2013/05/15 23:51] 127.0.0.1 external edit |
reversed_relation [2013/09/09 09:25] nikolaj |
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| ===== Reversed relation ===== | ===== Reversed relation ===== | ||
| ==== Definition ==== | ==== Definition ==== | ||
| - | | $ R,x,y $ | | + | | @#88DDEE: $ R\in\text{Rel}(X,Y) $ | |
| - | | $ \text{relation-like}(R) $ | | + | | @#FFBB00: $ \langle x,y \rangle \in R^\smile $ | |
| - | ^ $ \langle x,y \rangle \in R^\smile $ ^ | + | | @#55EE55: $ \langle y,x \rangle \in R $ | |
| - | + | ||
| - | ^ $ \langle y,x \rangle \in R $ ^ | + | |
| ==== Ramifications ==== | ==== Ramifications ==== | ||
| - | ==== Context ==== | ||
| - | Set constructor | ||
| - | === Follows === | ||
| - | [[Ordered pair]] | ||
| - | ==== Discussion ==== | ||
| === Reference === | === Reference === | ||
| - | Mizar files: | + | Mizar files: [[http://markun.cs.shinshu-u.ac.jp/mirror/mizar/JFM/Vol1/relat_1.html|RELAT_1]] |
| - | + | ||
| - | [[http://markun.cs.shinshu-u.ac.jp/mirror/mizar/JFM/Vol1/relat_1.html|RELAT_1]] | + | |
| + | ==== Parents ==== | ||
| + | === Requirements === | ||
| + | [[Binary relation]] | ||
