: Many mathematics departments hold digitized copies of out-of-print textbooks on internal servers for registered students. 2. Open-Source Alternatives
What specific (like Hausdorff spaces or compactness) you are focusing on right now? an introduction to general topology paul e long pdf link
Because the book was published in 1971, it predates the widespread digitization of academic texts. While this makes it a valuable classic, it also means it is less likely to have been officially scanned and released as a free PDF compared to a more modern open-access textbook. : Many mathematics departments hold digitized copies of
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