New posts in General Topology

Willard 17R; uncountably many compact subsets of real line

On compactifications of Lindelöf spaces

What are some lesser-known examples where increasing the dimensionality makes the problem easier to solve?

Why do we need topological spaces?

What is the purpose of the category of topological pairs?

Continuous open metrizable image of a Polish space is Polish

The Sorgenfrey plane and the Niemytzki plane are Baire spaces

Prove that the unit circle cannot be a retract of $\mathbb{R}^2$-Munkres sec 35 exercise 4

The interior of open set in a convex set is not empty

Using algebraic isomorphisms to define a topology if one of the algebraic objects has a topology?