Theorems and counterexamples in mathematics / Bernard R. Gelbaum, John M.H. Olmsted. Gelbaum, Bernard R. Olmsted, John Meigs Hubbell, 1911- Mathematics. QA36 .G45 1990 510 20 GET Includes bibliographical references (p. 233-247) New York : Springer-Verlag, c1990. c1990. 1990 Text xxxiv, 305 p. : http://www.loc.gov/catdir/enhancements/fy0815/90009899-d.html http://www.loc.gov/catdir/enhancements/fy0815/90009899-t.html eng Problem books in mathematics