: Analysis of these two pivotal properties that describe the "global" shape and finiteness of spaces.
As a legacy academic text, "An Introduction to General Topology" by Paul E. Long is widely available through digital preservation libraries: an introduction to general topology paul e long pdf link
: Introduction to the axiomatic definition of a topology, open and closed sets, and basis for a topology. : Analysis of these two pivotal properties that
: You can borrow a digital copy or view the full PDF of An Introduction to General Topology . open and closed sets