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| Both sides previous revision Previous revision | Last revision Both sides next revision | ||
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partial_function [2013/12/29 22:20] nikolaj |
partial_function [2014/03/21 11:11] 127.0.0.1 external edit |
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| ==== Set ==== | ==== Set ==== | ||
| Let | Let | ||
| - | | @#88DDEE: $X,Y$ | | + | | @#55CCEE: context | @#55CCEE: $X,Y$ | |
| be sets. Then | be sets. Then | ||
| - | | @#FFBB00: $ f\in\text{PartialFunction}(X,Y) $ | | + | | @#FFBB00: definiendum | @#FFBB00: $ f\in\text{PartialFunction}(X,Y) $ | |
| if | if | ||
| - | | @#88DDEE: $ f \in \text{Rel}(X,Y) $ | | + | | @#55CCEE: context | @#55CCEE: $ f \in \text{Rel}(X,Y) $ | |
| - | | @#55EE55: $ \langle x,a\rangle\in f \land \langle x,b\rangle\in f \Rightarrow a=b $ | | + | | @#55EE55: postulate | @#55EE55: $ \langle x,a\rangle\in f \land \langle x,b\rangle\in f \Rightarrow a=b $ | |
| ==== Discussion ==== | ==== Discussion ==== | ||
