ZuoTi.Pro
Problem

Let X be a topological space; let A be a subset of X. Suppose that for each x∈A there is a...

Let X be a topological space; let A be a subset of X. Suppose that for each x∈A there is an open set U containing x such that . Show that A is open in X.

Step-by-Step Solution

Request Professional Solution

Request Solution!

We need at least 10 more requests to produce the solution.

0 / 10 have requested this problem solution

The more requests, the faster the answer.

Request! (Login Required)

All students who have requested the solution will be notified once they are available.
Add your Solution
Textbook Solutions and Answers Search
Solutions For Problems in Chapter 2.13
ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
Recent Solutions