Unfortunately, I couldn't find a publicly available PDF link for the book. However, you can try searching for the book on online libraries or academic databases such as:
A review of the foundational tools required for mathematical proofs. an introduction to general topology paul e long pdf link
An Introduction to General Topology by Paul E. Long is a foundational text tailored for students entering the abstract world of point-set topology. Written with a focus on clarity and accessibility, this book bridges the gap between introductory calculus and advanced analysis. Unfortunately, I couldn't find a publicly available PDF