I work in philosophy of logic. I am mainly interested in the notion of truth, especially in semantic paradoxes and the expressive limits of formal languages. I've also done work on higher-order resources, Set Theory and unrestricted quantification.I am Professor of Logic in the Department of Philosophy, University of Buenos Aires (2005-), and I've a position as independent researcher in The National Council of Scientific and Technological Research (2005-). I've got a PhD in Philosophy, University of Buenos Aires (1996).I am (with Volker Halbach) director of the research group Oxford-Buenos Aires: Truth, Open-endedness and Inexpressibility The BRITISH ACADEMY, Latin America/Caribbean 2012-2013.I am also (with Hannes Leitgeb) director of the research group MCMP - LMU München - University of Buenos Aires "Truth, Paradoxes and Modalities" de la DAAD-MinCyT, DA/12/01, 2013-2014.I was visiting professor at UFBA in 2013 (Capes).I was visiting professor at MIT in 2010.In last years, my papers are(i) (with Picollo) "Notes on w-inconsistent Theories of Truth in Second-Order Languages" Review of Symbolic Logic Vol 6, n 4 (2013)(ii) "Absoluta Generalidad y Validez Lógica" NPSF (Notae Philosophicae Scientiae Formalis), Vol 2, n 2. (2013).(iii) "The Yablo Paradox and Circularity" Análisis Filosófico, Vol 31, n 1, (2012).(iv) Teorías de la verdad sin modelos estándar: un nuevo argumento para adoptar jerarquías Análisis Filosófico, Vol 31, n 1 (2011). (v) "Theories of Truth without Standard Models and Yablo s Sequences" Studia Logica Vol 96 (2010)(vi) "Nota Crítica Sobre Generalidad Absoluta" Crítica Vol 41, n 121, (2009).(vii) Cuantificación, Dominios y Secuencias de Yablo", Cuadernos de Filosofía, Vol. 58, (2008) U.B.A. Argentine.(viii) La Paradoja de Orayen: Autosuficiencia semántica e interpretación de los lenguajes formalesSemantic Analítica II nº1 (2008) (Universidad San Marcos Peru).(ix) Consecuencia Lógica, Modalidad y Generalidad irrestricta Manuscrito Vol XXX, nº 1, (2007), Brazil.(x) Modelos, Autoaplicación y Absoluta Generalidad Theoria Vol XXII, nº 59 (2007) (Spain)(xi) Consecuencia Lógica: modelos conjuntistas y modalidad. Revista de Filosofía (University Complutense of Madrid) Vol XXXI nº 2 (2006) (Spain).(xii) Verdad y Circularidad: el problema de la superveniencia semántica Theoría Vol. 17 n 43, (2002), Spain.