Topology Definitions: Closure, Boundary, Interior

An explanation of how to define closure, boundary, and interior in topology using open and closed sets instead of a metric. Also explains adherence points. Intended as an introduction to basic concepts in topology. Topology playlist: https://www.youtube.com/playlist?list=PLug5ZIRrShJEGnUPxM1KUVOHkW4kN6QU_ 0:00 Intro 1:24 Closure 7:46 Boundary 11:05 Interior Subscribe to see more new math videos! Music: C418 - Pr Department