List questions from dense-subspaces | MathQa

Is a finite codimensional subspace always closed or dense?

Published on 02 Jul 2025 - 5:36

Any counter-example to Weierstrass-Stone Thm on non-compact spaces

Published on 11 Apr 2025 - 14:30

Understanding dense sets

Published on 02 Jul 2025 - 5:46

Is it possible to define a topology on the real line such that 0 and non-zero integers are dense but no finite subset of non-zero integers is dense?

Published on 14 Apr 2025 - 13:31

Characterization of density and adherence in topological space.

Published on 10 Apr 2025 - 21:27

Extension of non-first countable space

Published on 11 Apr 2025 - 2:29

How can I show that this set is not dense in $S^1\times S^1$?

Published on 11 Apr 2025 - 13:57

Rudin's RCA Theorem $4.18$.

Published on 17 Apr 2025 - 7:32

Hausdorff measure of uncountable dense subsets

Published on 10 Apr 2025 - 18:52

If $X$ is locally compact, then $\mathrm{Lib}_c (X)$ is dense in $L^p (X, \mu)$ for $p \in [1, \infty)$

Published on 10 Apr 2025 - 19:12