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idempotent_function [2014/02/08 18:32] nikolaj old revision restored (2014/02/08 02:48) |
idempotent_function [2014/02/08 18:32] nikolaj |
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| | @#FFBB00: $ f\in \mathrm{it}(X,Y) $ | | | @#FFBB00: $ f\in \mathrm{it}(X,Y) $ | | ||
| - | | @#88DDEE: $ f:X\to Y $ | | + | | @#55EE55: $ f:X\to Y $ | |
| | @#55EE55: $ f\circ f=f $ | | | @#55EE55: $ f\circ f=f $ | | ||
