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Artifacts: Parts and principlesIn Eric Margolis & Stephen Laurence (eds.), Creations of the Mind: Theories of Artifacts and Their Representaion, Oxford University Press. pp. 18--32. 2007.
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54Demarcation in science education: Toward an enhanced view of scientific methodIn Roger S. Taylor & Michel Ferrari (eds.), Epistemology and Science Education: Understanding the Evolution Vs. Intelligent Design Controversy, Routledge. pp. 3--19. 2011.
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125On the Logics of Singular TermsGrazer Philosophische Studien 25 (1): 285-296. 1986.Motivations for systems of free logics are reviewed and systems are divided according as they are positive (asserting atomic truths with non-denoting terms) negative (denying all such sentences) or neutral. A positive theory is developed and defended. One of the major considerations in favor of the theory is that it allows (via translation) representation of the other points of view. Finally, the relation between free logic and truth theories is elaborated.
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