Must an uncountable subset of R have uncountably many accumulation points?
58471
Accumulation points of uncountable sets
146560
Is there any uncountably infinite set that does not generate the reals?
30587
Uncountable well ordered set in $Z^-$ theory.
146006
Uncountable $\sigma$-algebra
155168
Is the collection of finite subsets of $\mathbb{Z}$ countable?
99064
Uncountable set with exactly one limit point
2403
Can a countable set contain uncountably many infinite subsets such that the intersection of any two such distinct subsets is finite?
39880
Cardinality of Orderings of $\mathbb{R}$
70196
Is there any well-ordered uncountable set of real numbers under the original ordering?
324
Show uncountable set of real numbers has a point of accumulation
40071
What is the cardinality of the set of all topologies on $\mathbb{R}$?
86685
Example of a set $S$ that is countable, but the set of limit points is uncountable
114770
Proof that a perfect set is uncountable
11455
Connected metric spaces with at least 2 points are uncountable.
9021
An infinite subset of a countable set is countable
87366
How can infinity be an accumulation point?
130981
Co-countable measure on uncountable set