: Introduction to the axiomatic definition of a topology, open and closed sets, and basis for a topology.
: While not a full download, you can view the Google Books entry for citation and bibliographic details. Core Content and Structure an introduction to general topology paul e long pdf link
Paul E. Long's (1971) is a classic mathematical text designed to bridge the gap between elementary calculus and advanced abstract analysis. Published by Merrill, this 281-page book is favored for its rigorous yet accessible approach to point-set topology. Where to Access the PDF Link : Introduction to the axiomatic definition of a
The book is structured to provide a comprehensive foundation for undergraduate and early graduate students. Key areas of study include: Long's (1971) is a classic mathematical text designed
: Analysis of these two pivotal properties that describe the "global" shape and finiteness of spaces.
: You can borrow a digital copy or view the full PDF of An Introduction to General Topology .