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Counterexamples in Topology - L. A. Steen, J. A. Seebach Counterexamples in Topology - Buch The creative process of mathematics, both historically and individually, may be described as a counterpoint between theorems and examples. Al though it would be hazardous to claim that the creation of significant... Counterexamples in Topology - L. A. Steen, J. A. Seebach