Berkeley, University of California
Group in Logic and the Methodology of Science.
Carnegie Mellon University
Pure and Applied Logic.
Las Cruces, New Mexico
Laboratory for Logic,Databases and Advanced Programming.
Los Angeles, University of California
Logic and Set Theory.
SRI International
Computer Science Laboratory: Formal Methods and Dependable Systems; Rewriting Logics and Systems.
University of Maryland at College Park
Computer Science Department, Active Logic Group.