The Chicago Journal of Theoretical Computer Science MIT Press 1995 Table of Contents 1. Symmetric Logspace is Closed Under Complement by Noam Nisan and Amnon Ta-Shma 30 June 1995 2. On the Weak mod m Representation of Boolean Functions by Vince Grolmusz 21 July 1995 3. Rabin Measures by Nils Klarlund and Dexter Kozen 20 September 1995 4. Probabilistically Checkable Debate Systems and Nonapproximability of PSPACE-Hard Functions by Anne Condon, Joan Feigenbaum, Carsten Lund, and Peter W. Shor 19 October 1995