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Property of Mrowka
4
Do operations generate well-ordered sets only?
5
Importance of separability vs. second-countability
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Is there a contractible bounded homogeneous space?
16
How far is Lindelöf from compactness? (2)
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Regular spaces that are not completely regular
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Can we generalize the result of Urysohn’s lemma to countable collection of pairwise disjoint closed subsets of a normal space..?
4
A question from Arhangel’skii-Buzyakova
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On the notion of partial semigroup
3
Which topological spaces are (topological) groups?
3
Is the Sorgenfrey Line monotonically monolithic?
1
Image of the Hilbert space under a continuous bijection
8
Two different analytic curves cannot intersect in infinitely many points
3
Does the network of $X$ equal to the network of $C_p(X)$?
10
Is there a maximum to the amount of disjoint non-measurable subsets of the unit interval with full outer measure?
3
A question about well ordered subsets of totally ordered countable sets
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The integers as a sequential but non-first countable topological group
4
Does a uniform space have a closed embedding in a product of metric spaces?
5
Quotients of Cantor cubes onto spaces
5
Hausdorff group topologies on finitely generated groups
4
Well-ordering with a topological property
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When does a homeomorphism split into essentially minimal homeomorphisms?
2
Zero-dimensional space
2
a question about algebras between $C^{\ast}(X)$ and $C(X)$
8
Computing the limit of a certain recursively defined sequence
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How much $\beta \mathbb{N}$ is homogenous?
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Constructible sets in Hausdorff spaces
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Characterization of cocompact group action
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The identity element of a compact group is a limit point of any “polynomial sequence”
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Intuition behind o-minimal structures.
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