Minimally dense subsets of $[0,1]$?
67702
Minimal dense subset
65963
Dense sets in Hilbert space of square summable sequences?
121097
Every not empty finite subset of a totally ordered set has a maximum and minimum
45216
Cardinality of $[0,1]$
103307
Generate the smallest $\sigma$-algebra containing a given family of sets
36631
Is $[0,1] \cap \Bbb Q$ a compact subset of $\Bbb Q$?
6523
Prove that the space has a countable dense subset
151719
Connected set in $\mathbb{S}^1$
143586
Is $[0,1]$ a union of family of disjoint closed intervals?
48162
Is the subset $[0, \sqrt2] ∩\mathbb{Q} ⊂ \mathbb{Q}$ closed, bounded, compact?
120522
Showing any countable, dense, linear ordering is isomorphic to a subset of $\mathbb{Q}$
128844
An empty intersection of decreasing sequence of closed sets
107564
If two sets have a natural (asymptotic) density, does their union?
142583
Subsets of the Cantor set
116542
Which of the following sets are compact in $\mathbb{M}_n(\mathbb{R})$[NBHM_PhD Screening Test-2013, Topology]
26256
Characterizing Dense Subgroups of the Reals
136108
Arbitrary intersection of closed, connected subsets of a compact space connected?