Can the closure of isolated point set be uncountable
86685
Example of a set $S$ that is countable, but the set of limit points is uncountable
60424
Uncountable family of uncountable compact subsets of $\mathbb{R}$
75019
Infinite Cartesian product of countable sets is uncountable
2056
A space is $T_{0}$ if and only if the closures of singletons are distinct
70048
In which topologies do open sets maintain open under countable or arbitrary intersection?
103923
Double orthogonal complement is equal to topological closure
22391
Is the set of all pairs of real numbers uncountable?
30411
The closure of the irrational numbers on $\mathbb{R}$
102048
Closure of a compact set in Regular space $ X $
99854
Must an uncountable subset of R have uncountably many accumulation points?
99678
Is a sphere a closed set?
50846
Is a set without limit points necessarily closed?
39351
$f(X)$ is uncountable and hence $X$ is uncountable.
93389
Uncountable sets of Hausdorff dimension zero
84609
Unary intersection of the empty set
99236
Interior of closure of an open set
11455
Connected metric spaces with at least 2 points are uncountable.