In topology and related branches of mathematics, a topological space may be defined as a set of points, along with a set of neighbourhoods for each point, satisfying a set of axioms relating points and neighbourhoods.
Dalam topologi dan subbidang matematika terkait, ruang topologi dapat didefinisikan sebagai sebuah himpunan titik-titik beserta hubungan ketetanggaan antara titik-titik tersebut.