In the real line, how many convex subsets are there up to homeomorphism?
100437
Classification of connected subsets of the real line (up to homeomorphism)
85681
Cardinality of polynomials with real coefficients
65953
Cardinality of the set of differentiable functions
18222
Set of continuity points of a real function
79974
The cardinality of Lebesgue sets
26563
Help completing a proof regarding an infinite family of nested closed subsets in a compact metric space
78422
Calculate the number $o(\mathbb{R})$ of open subsets of the real line.
44704
familly of Radially open sets in $\mathbb{R}^2$
154324
preservation of completeness under homeomorphism
132571
Local homeomorphisms which are not covering map?
82458
Homeomorphism between the unit disc and the unit square
18763
injective holomorphic function on a convex set
13993
Can we prove $ℝ^n ∖ \{\text{straight line}\}$ and $ℝ^n ∖ \text{\{an axis\}}$ homeomorphic by proving their complements homeomorphic?
155794
Are the complements of two homeomorphic compact, connected subsets of $\mathbb{R}^2$ homeomorphic?
77217
Proof that a coordinate-wise convex function is convex?
12003
Cardinality of set of real continuous functions
31479
homeomorphism of cantor set extends to the plane?