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unary_operation [2013/09/06 22:04] 127.0.0.1 external edit |
unary_operation [2014/02/08 18:40] nikolaj |
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===== Unary operation ===== | ===== Unary operation ===== | ||
- | ==== Definition ==== | + | ==== Set ==== |
- | | $X$ | | + | | @#88DDEE: $X$ ... set | |
- | ^ $ f\in \text{unaryOp}(X) $ ^ | + | | @#FFBB00: $ f\in \text{it}(X) $ | |
- | The set of unary operations on $X$. | + | | @#AAFFAA: $ f:X\to X $ | |
- | | $ f:X\to X $ | | + | ==== Discussion ==== |
- | + | ||
- | ==== Ramifications ==== | + | |
=== Reference === | === Reference === | ||
- | Mizar files: [[http://mizar.org/JFM/Vol1/binop_1.html|BINOP_1]] | ||
- | |||
Wikipedia: [[http://en.wikipedia.org/wiki/Unary_operation|Unary operation]] | Wikipedia: [[http://en.wikipedia.org/wiki/Unary_operation|Unary operation]] | ||
- | |||
==== Parents ==== | ==== Parents ==== | ||
- | Set constructor | ||
=== Subset of === | === Subset of === | ||
- | [[Binary relation on a set]] | + | [[Binary relation on a set]], [[Function]] |
- | === Special case of === | + | |
- | [[Function]] | + | |
- | + | ||
- | Via. $\text{codom}(f)\overset{!}{=}\text{dom}(f)$. | + |