Carnap and the Tractatus' Philosophy of Logic

Abstract

This article discusses the relation between the early Wittgenstein’s and Carnap’s philosophies of logic, arguing that Carnap’s position in The Logical Syntax of Language is in certain respects much closer to the Tractatus than has been recognized. In Carnapian terms, the Tractatus’ goal is to introduce, by means of quasi-syntactical sentences, syntactical principles and concepts to be used in philosophical clarification in the formal mode. A distinction between the material and formal mode is therefore already part of the Tractatus’ view, and its method for introducing syntactical concepts and principles should be entirely acceptable for Carnap by his own criteria. Moreover, despite the Tractatus’ rejection of syntactical statements, there is an important correspondence between Wittgenstein’s saying-showing distinction and Carnap’s object-language-syntax-language distinction: both constitute a distinction between logico-syntactical determinations concerning language and language as determined or described by those determinations. Wittgenstein’s distinction therefore constitutes a precursor of the object-language syntax-language distinction which the latter in a certain sense affirms, rather than simply contradicting it. The saying-showing distinction agrees with Carnap’s position also in marking logic as something that isn’t true/false about either language or reality, which is a conception that underlies Carnap’s principle of tolerance.ReferencesS. Awodey and A. Carus. From Wittgenstein’s Prison to the Boundless Ocean: Carnap’s Dream of Logical Syntax. In P. Wagner, editor, Carnap’s Logical Syntax of Language. Palgrave Macmillan, Basingstoke, 2009.Rudolf Carnap. Die Physikalische Sprache als Universalsprache der Wissenschaft. Erkenntnis, 5/6:432–465, 1932.Rudolf Carnap. On the Character of Philosophic Problems. Philosophy of Science, 1:5–19, 1934.http://dx.doi.org/10.1086/286302Rudolf Carnap. Introduction to Semantics. Harvard University Press, Cambridge, MA, 1948.Rudolf Carnap. Intellectual Autobiography. In P. A. Schlipp, editor, The Philosophy of Rudolf Carnap. Open Court, La Salle, IL, 1963.Rudolf Carnap. Logical Syntax of Language. Routledge and Kegan Paul, London, 1967.Rudolf Carnap. Empiricism, semantics and ontology. In P. A. Schlipp, editor, Meaning and Necessity: A Study in Semantics and Modal Logic. Open Court, La Salle, IL, 1988.A. Carus. Carnap and Twentieth-Century Thought: Explication as Enlightenment. Cambridge University Press, Cambridge, 2007.http://dx.doi.org/10.1017/CBO9780511487132C. Diamond. Throwing Away the Ladder: How to Read the Tractatus. In The Realistic Spirit. Harvard University Press, Cambridge, MA, 1991.P. Engelmann. Letters from Ludwig Wittgenstein with a Memoir. Blackwell, Oxford, 1967.Michael Friedman. Reconsidering Logical Positivism. Cambridge University Press, Cambridge, 1999.J. Hintikka. Ludwig’s Apple Tree: On the Philosophical Relations between Wittgenstein and the Vienna Circle. In Selected Papers, volume 1. Kluwer Academic Publishers, 1996.W. Kienzler. Wittgenstein und Carnap: Klarheit oder Deutlichkeit als Ideal der Philosophie. In C. Schildknecht, D. Teichert, and T. Zantwijk, editors, Genese und Geltung. Mentis, Paderborn, 2008.Oskari Kuusela. The Struggle Against Dogmatism: Wittgenstein and the Concept of Philosophy. Harvard University Press, Cambridge, MA, 2008.Oskari Kuusela. The Dialectic of Interpretations: Reading Wittgenstein’s Tractatus. In M. Lavery and R. Read, editors, Beyond the Tractatus Wars: The New Wittgenstein Debate. Routledge, London, 2011a.Oskari Kuusela. The Development ofWittgenstein’s Philosophy. In O. Kuusela and M. McGinn, editors, The Oxford Handbook of Wittgenstein. Oxford University Press, Oxford, 2011b.D. McManus. The Enchantment of Words: Wittgenstein’s Tractatus Logico-Philosophicus. Oxford University Press, Oxford, 2006.D. Stern. Wittgenstein, the Vienna Circle, and Physicalism, a Reassessment. In A. Richardson and T. Uebel, editors, The Cambridge Companion to Logical Empiricism. Cambridge University Press, 2007.P.Wagner. The Analysis of Philosophy in Logical Syntax: Carnap’s Critique and His Attempt at Reconstruction. In Carnap’s Logical Syntax of Language. Palgrave Macmillan, Basingstoke, 2009.http://dx.doi.org/10.1057/9780230235397Friedrich Waismann. The Principles of Linguistic Philosophy. Palgrave Macmillan, Basingstoke, 1995.Ludwig Wittgenstein. Tractatus Logico-Philosophicus. Routledge and Kegan Paul, London, 1951.LudwigWittgenstein. Philosophical Investigations. Blackwell, Oxford, 2nd edition, 1997.Ludwig Wittgenstein. Philosophical Remarks. Blackwell, Oxford, 1998.Ludwig Wittgenstein. Wittgenstein’s Nachlass: The Bergen Electronic Edition. Oxford University Press, Oxford, 2000.Ludwig Wittgenstein. Gesamtbriefwechsel / Complete Correspondence. Innsbrucker Electronic Edition. InteLex, 2004.Ludwig Wittgenstein and Friedrich Waismann. The Voices of Wittgenstein: The Vienna Circle, Ludwig Wittgenstein and Friedrich Waismann. Routledge, London and New York, 2003.