This third volume continues Richard Routley's explorations of an improved Meinongian account of non-referring and intensional discourse (including joint work with Val Routley, later Val Plumwood). It focuses on the essays 8 to 12 of the original monograph, Exploring Meinong's Jungle and Beyond, following on from the material of the first two volumes and further explores aspects and implications of the Noneist position. It begins with a discussion of the value of nonexistent objects championed by noneism, especially as regards theories of perception, universals, value theory and a commonsense account of belief. It continues with: a detailed analysis of what it means to exist; the importance of nonexistent objects to adequate accounts of mathematics and the theoretical sciences; and an account of noneisms' distinctiveness from other accounts of nonexistent objects. These essays are supplemented with scholarly essays from Naoya Fujikawa, and Maureen Eckert and Charlie Donahue.
"This book contains the core of the application of noneism to ontology, in particular, to the ontology of mathematics and the sciences. It is a required reading for those interested in those fields ... . Certainly, there is much to be learned by engaging with the discussion in the book, and Routley's short but useful discussions on the methodology of theory choice in logic and ontology deserve to be better known in the epistemology of logic and in current metaontology." (Jonas Rafael Becker Arenhart, Mathematical Reviews, April, 2022)