What is the name of a set with empty interior? Wikipedia in a older version, say that is a hollow set, but i think that it is false. It is true? thanks in advance!
Mathematics Stack Exchange is a question and answer site for people studying math at any level and professionals in related fields. It's 100% free, no registration required.
Here's how it works:
- Anybody can ask a question
- Anybody can answer
- The best answers are voted up and rise to the top