- #1
kakarukeys
- 190
- 0
for simplicity, consider the real number space
the distance between two points x, y (two reals) is [tex]|x - y|[/tex]
Is there a definition of distance between a point x and a subset of R, such as an interval (a, b)?
If there isn't any, how would you define it, such that there are some meaningful constructions?