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2014-2015 II semestre: Truth and the Liar Paradox  

Corsi Dottorato II semestre 2014-2015


Truth and the Liar Paradox

Prof. José Martínez Fernández (Universitat de Barcelona)


25 March (h. 10-12; 14-16) and 26 March (h. 10-12) 

Seminar Room (Cortile Ghiacciaia, 2 floor)


The Liar Paradox derives from platitudes about truth shared by virtually all standard accounts of truth. The aim of the course is to present several versions of the Liar and then to give a brief discussion of the main solutions proposed to the Liar.



1. Introduction: theories of truth and the Liar paradox.

2. The orthodox solution: the Tarskian hierarchy of truth predicates.

3. Paracomplete solutions 1: Kripke’s theory of truth.

4. Paraconsistent solutions: Priest’s dialetheism.

5. The revision theory of truth: Gupta and Belnap’s theory of circular definitions.

6. Paracomplete solutions 2: Field’s theory of truth.

7. Contextualist solutions: Burge and Glanzberg.

8. Axiomatic theories of truth and the discussion about deflationism.




- Kirkham, Richard. Theories of truth. MIT Press, 1992, ch. 5,6,9.

- Kripke, Saul. “Outline of a Theory of Truth”. Journal of Philosophy, 72, 1975, pp. 690-716. Reprinted in R. Martin (ed.), Recent Essays on Truth and the Liar Paradox, Oxford U. P., 1984, pp. 53-81. 

- Horsten, Leon. The Tarskian Turn. Deflationism and Axiomatic Truth. MIT Press, 2011.

- Sainsbury, R.M. Paradoxes. Cambridge University Press, 3d ed., 2009, ch. 6.

- Tarski, Alfred. "The semantic conception of truth and the foundations of semantics", Philosophy and Phenomenological Research, 4, 1944, pp. 341-375. Reprinted in Collected papers, Givant, S.R. and McKenzie, R.N. (eds.), Birkhauser, 1986, vol. 2, pp. 661-699.



- Barwise, Jon and Etchemendy, John. The Liar. An Essay on Truth and Circularity, Oxford University Press, 1987.

- Burge, Tyler. "Semantical Paradox", Journal of Philosophy, 76, pp. 169-198, 1979. Reprinted in R. Martin, Recent Essays on Truth and the Liar Paradox, Oxford U. P., 1984, pp. 83-117.

- Field, Hartry. Saving Truth from Paradox. Oxford U.P., 2008.

- Glanzberg, Michael. “The Liar in Context,” Philosophical Studies, vol. 103 , 2001, 217-251.

- Glanzberg, Michael.  “A Contextual-Hierarchical Approach to Truth and the Liar Paradox,” Journal of Philosophical Logic, vol. 33, 2004, 27-88.

- Gupta, Anil and Belnap, Nuel. The Revision Theory of Truth, MIT Press, 1993.

- Halbach, Volker. Axiomatic Theories of Truth. Cambridge U.P., 2011.

- Priest, Graham. In Contradiction. A Study of the Transconsistent, Oxford U.P., 2d ed., 2006.

- Tarski, Alfred. "The concept of truth in formalized languages", in Logic, Semantics, Metamathematics, Hackett, 1983, ch. 8.

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