Differences
This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision | |||
|
partial_function [2014/03/21 11:11] 127.0.0.1 external edit |
partial_function [2014/04/01 16:25] nikolaj |
||
|---|---|---|---|
| Line 1: | Line 1: | ||
| ===== Partial function ===== | ===== Partial function ===== | ||
| ==== Set ==== | ==== Set ==== | ||
| - | Let | ||
| | @#55CCEE: context | @#55CCEE: $X,Y$ | | | @#55CCEE: context | @#55CCEE: $X,Y$ | | ||
| - | be sets. Then | ||
| | @#FFBB00: definiendum | @#FFBB00: $ f\in\text{PartialFunction}(X,Y) $ | | | @#FFBB00: definiendum | @#FFBB00: $ f\in\text{PartialFunction}(X,Y) $ | | ||
| - | if | ||
| | @#55CCEE: context | @#55CCEE: $ f \in \text{Rel}(X,Y) $ | | | @#55CCEE: context | @#55CCEE: $ f \in \text{Rel}(X,Y) $ | | ||
| | @#55EE55: postulate | @#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 $ | | ||
