Parlog++
An object-oriented extension to MacParlog. It combines object-oriented and parallel logic programming, giving the benefits of both paradigms within a single coherent development environment.
Andrew Davison <ad@cs.mu.oz.au>, then Imperial College now U Melbourne. Object orientation plus parallel logic, built on top of MacParlog.
"Parlog++: A Parlog Object-Oriented Language", A. Davison, Parlog Group, Imperial College 1988. Sold by PLP Ltd. E-mail: <parlog@doc.ic.ac.uk>.