Current Data About
approach space
| (P279) |
(Q748349)
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| (P2534) |
\begin{aligned}d\colon X\times\operatorname{Pow}(X)&\to[0,\infty]\\d(x,\{x\})&=0\\d(x,\varnothing)&=\infty\\d(x,A\cup B)&=\min\{d(x,A),d(x,B)\}\\\forall\epsilon\in[0,\infty]\colon d(x,A)&\le d(x,\{y\in X|d(y,A)\le\epsilon\})+\epsilon\end{aligned}
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| (P2579) |
(Q621550)
(Q122488935) |
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| (P7235) |
(X,d)
X
\operatorname{Pow}
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other details
| description | set equipped with a point-to-subset distance function |
External Links
| (P646) |
/m/05bxp5
|
| (P4215) |
approach space
|
| (P6366) |
2776772326
|