Counterexamples in topology. 2nd ed. (English) Zbl 0386.54001

New York - Heidelberg - Berlin: Springer-Verlag. XI, 244 p. (1978).


54-01 Introductory exposition (textbooks, tutorial papers, etc.) pertaining to general topology
54G20 Counterexamples in general topology

Online Encyclopedia of Integer Sequences:

Triangle T(n,m) read by rows: 3^n if m is odd, 0 if m is even.