Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Lv 43,906 points
Anonymous
Favorite Answers74%
Answers362
How do I prove this theorem?
Let f: X->Y where X and Y are metric spaces. If a is not an isolated point of X, then f is continuous at a if and only if f(x) converges to f(a) as x tends to a.
1 AnswerMathematics8 years ago