Explore 'Introduction to Topology' by Bert Mendelson, 3rd Edition. This classic textbook offers a comprehensive introduction to topology, covering basic concepts, metric spaces, topological spaces, continuity, compactness, connectedness, and more with clear explanations, examples, and exercises.

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G. Lejeune Dirichlet's Werke / herausgegeben auf Veranlassung der königlich preussischen Akademie der Wissenschaften von L. Kronecker ; forgesetzt von L. Fuchs