domingo, 4 de março de 2012


Call for papers - Deadline extension: March 17, 2012
ESSLLI 2012 Workshop- Opole, Poland - August 13-17, 2012

Submission should be made via the workshop website:

or directly on Easychair:

Workshop description

Trivalent logics have been an object of extensive study since at least
the work of Lukasiewicz, with applications to a wide range of natural
language phenomena, including presupposition, conditionals and
vagueness. While many-valued logics can be studied on their own, there
has been a regain of interest for three-valued logics in recent years,
with the emergence of new perspectives regarding their applicability
to natural language.

In the theory of presupposition projection, in particular, the
question of whether the projection of presupposition can be dealt with
by means of a trivalent truth-functional semantics has been the object
of renewed attention, in particular because truth-functional trivalent
approaches appear as a main competitor to both dynamic and pragmatic
approaches (viz. Beaver and Krahmer 2001, George 2008, Fox 2008, all
of them giving special attention to so-called middle-Kleene logic
proposed by Peters, and the recent debates with Schlenker). In the
area of vagueness, ways have been proposed to combine the canonical
paracomplete and paraconsistent three-valued logics of Kleene and
Priest in order to deal with the paradoxes of vagueness, and to
account for phenomena such as meaning coarsening and strengthening
(viz. Avron et Konikowska 2008, Cobreros et al. 2010). In the
literature on conditionals, finally, the question remains largely open
of the selection between a wide range of candidates for the definition
of a suitable three-valued conditional (viz. Bradley 2002, Cantwell
2008, Huitink 2009, Rothschild 2009). From a more foundational point
of view, finally, the meaning attached to the third truth value can
vary significantly depending on the problem under consideration and
the definition of logical consequence considered to be relevant.

The aim of this workshop is to solicit new contributions for the
extension of two-valued logic with a third truth-value. Submissions
are encouraged on logical and linguistics aspects of the use of
3-valued logics, with relevance on the following topics:

- applications of trivalent logic to quantification in natural language
- trivalent logics for conditionals / vagueness / presupposition
- are vagueness and presupposition susceptible of a unified treatment
in trivalent logic?
- logical consequence and proof-theory for three-valued logic
- unification and classification of 3-valued logics
- connection between 3-valued logics and other non-classical logics
- partial 2-valued logics vs. 3-valued logics
- do we need more than three truth-values? can we dispense with a
third truth value?

Invited speakers

Arnon Avron
Janneke Huitink
Grzegorz Malinowski

Submission details

Submission should be made via the workshop website:

or directly on Easychair:

Please send your submission in PDF format, at most 10 pages. The
recommended submission style is LNCS style, 10 pts, bibliography
If needed due to space reasons, technical material such as proofs may
be added in an appendix of at most 5 pages.

We are working to arrange for a special journal issue to publish
revised and extended versions of the best conference papers.

All participants will have to register to ESSLLI.

Important Dates

New deadline for Submission: March 17, 2012
Author Notification: April 15, 2012
Inclusion in ESSLLI Proceedings: June 1, 2012
Workshop in Opole: August 13, 17, 2012

Program committee

Arnon Avron
Pablo Cobreros
Paul Egré (co-chair)
Janneke Huitink
Grzegorz Malinowski
David Ripley (co-chair)
Robert van Rooij


Project 'Borderlineness and Tolerance' (FFI2010-16984, directed by P.
Cobreros) funded by the Ministerio de Ciencia e Innovación, Government
of Spain

European Research Council (FP7/2007-2013) / ERC Advanced Grant
agreement n°229 441-CCC (CPR project, directed by F. Recanati)

EURYI project "Presupposition: A formal pragmatic approach" hosted by
Institut Jean-Nicod (directed by P. Schlenker)

The workshop is organized as part of the 24th edition of the European
Summer School in Logic, Language and Information

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