Topology

(1) As a branch of mathematics, topology is the mathematical study of object's properties that are preserved through deformations, twistings, and stretchings. (2) As a set, a topology is a set along with a collection of subsets that satisfy several defining properties.

Topology is a college-level concept and course.

Classroom Articles on Topology (Up to College Level)

	Closed Set	Open Set
	Dimension	Point-Set Topology
	Homeomorphism	Projective Plane
	Metric	Projective Space
	Metric Space	Subspace
	Möbius Strip	Topological Space
	Neighborhood	Torus