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Determine the closure, interior, and boundary set $\mathbb{Q}$ of all rational numbers as a set of $\mathbb{R}$ with its standard topology. My answer are the following: Boundary set: $\mathbb{R}$ Closure: $\mathbb{R}$ Interior: $\emptyset$. Is my answer correct? thank you.

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closed as off-topic by Lee Mosher, user147263, Silvia Ghinassi, Daniel W. Farlow, choco_addicted Mar 12 '16 at 3:12

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "This question is missing context or other details: Please improve the question by providing additional context, which ideally includes your thoughts on the problem and any attempts you have made to solve it. This information helps others identify where you have difficulties and helps them write answers appropriate to your experience level." – Lee Mosher, Silvia Ghinassi, choco_addicted
If this question can be reworded to fit the rules in the help center, please edit the question.

  • $\begingroup$ If you're asking "am I correct?" then you are. Your question says "I am correct", which isn't a question. $\endgroup$ – Ethan Bolker Mar 11 '16 at 14:25
  • $\begingroup$ @ Ethan Bolker. Okey. Thank you so much.. $\endgroup$ – Bayoy Mar 12 '16 at 10:37

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