From the reviews: "The aims of the collection ... are 'to extend the horizon of philosophical analysis as it is practiced today' and to 'open up a new area of contemporary philosophical research'. ... The authors ... are all accomplished logicians and analytic philosophers. Their essays make valuable contributions to their respective fields ... . this volume, as part of the distinguished Synthese Library, may be expected to promote the growth of this area of research by reaching out to a wider philosophical audience." (Hans G. Herzberger, Journal of Indian Philosophy, Issue 15, 1987)