Differences
This shows you the differences between two versions of the page.
Both sides previous revision Previous revision | Last revision Both sides next revision | ||
metric [2014/06/25 00:48] nikolaj |
metric [2014/11/20 13:00] nikolaj |
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==== Set ==== | ==== Set ==== | ||
| @#55CCEE: context | @#55CCEE: $ X $ | | | @#55CCEE: context | @#55CCEE: $ X $ | | ||
- | | @#FFBB00: definiendum | @#FFBB00: $d\in \text{Metric}(X)$ | | + | | @#FFBB00: definiendum | @#FFBB00: $d\in$ it | |
| @#55EE55: postulate | @#55EE55: $d:X\times X \to \mathbb{R}_+$ | | | @#55EE55: postulate | @#55EE55: $d:X\times X \to \mathbb{R}_+$ | | ||
| @#55EE55: postulate | @#55EE55: $ d(x,y)=0 \implies x=y$ | | | @#55EE55: postulate | @#55EE55: $ d(x,y)=0 \implies x=y$ | |