Problem Books in Mathematics Edited by l? R. Halmos Problem Books in Mathematics Series Editor: P.R. Halmos Polynomials by EJ. Barbeau Problems in Geometry by Marcel Berger, Pierre Pansu, Jean-Pie Beny and Xavier Saint-Raymond Problem Book for First Year Calculus by George W: Bluman Exercises in Probability by T. Cacoullos Au Introduction to Hilbert Space and Quantum Logic by D. Cohen Problems in Analysis by Bernard Gelbaum Exercises in Integration by Claude George Algebraic Logic by S. G. Gindikin An Outline of Set Theory by James M. Henle Demography Through Problems by N.