a dense set in plane
64920
Boundary Question in $\mathbb{R}^{2}$ (Manifolds)
30105
Multiples of an irrational number forming a dense subset
26256
Characterizing Dense Subgroups of the Reals
97064
Dense set in an infinite cofinite space
98755
How can I show that the set of rational numbers with denominator a power of two form a dense subset of the reals?
6523
Prove that the space has a countable dense subset
3023
Construction of a Borel set with positive but not full measure in each interval
44430
Is there an open dense set $S \subset [0,1]$ such that $m(S)<1$?
118400
Is there a monotonic function discontinuous over some dense set?
67602
The inverse image of dense set is dense and of a comeager set is comeager?.
116542
Which of the following sets are compact in $\mathbb{M}_n(\mathbb{R})$[NBHM_PhD Screening Test-2013, Topology]
24477
Monochromatic squares in a colored plane
74498
Smallest dense subset of $\mathbb{R}$
158018
Everywhere Super Dense Subset of $\mathbb{R}$
78915
Density of the set $S=\{m/2^n| n\in\mathbb{N}, m\in\mathbb{Z}\}$ on $\mathbb{R}$?
151719
Connected set in $\mathbb{S}^1$
122463
How to show the that a set $A$ nowhere dense is equivalent to the complement of $A$ containing a dense open set?