"Is [0, inf) same as R+?"

https://arbital.com/p/5nh

by Alexei Andreev Jul 29 2016


A metric, sometimes referred to as a distance function, is a function that defines a real nonnegative distance between every two elements of a set\. It is commonly denoted by the variable d\. In colon\-to notation, a metric d that defines distances between elements of the set S is written: d:StimesSto\[0,infty)

Is [0, inf) same as R+?


Comments

Bryce Woodworth

I was under the impression that R+ doesn't include 0. If that's the case, then it is not the same.