In previous articles, I have discussed the definition of a topological space and continuous function. General Topology — Part 1
What is General Topology ?simonkwan-35335.medium.com General Topology — Part 2
ε-δ Definition of Continuous Functionsimonkwan-35335.medium.com In this article, I will discuss some essential topological concepts that are closely related: Neighbourhood, Limit Point, Closed Set, Closure and Dense Set. Let’s start our journey…