- #1

funcalys

- 30

- 1

"For [itex]\left[0,1\right][/itex] with the metric induced from [itex]R[/itex], [itex]\left[\frac{1}{2},1\right][/itex] is a neighborhood of 1, but not of [itex]\frac{1}{2}[/itex]."

However I can't point out the exactly "r">0 satisfying [itex]B_{[0,1]}(1,r)[/itex][itex]\subseteq[0,1][/itex].