Compositional Meaning in Logic [GeTFun 1.0]

4th World Congress and School on Universal Logic, Rio de Janeiro, Brazil

April 3-4, 2013


Organized by



The Fregean-inspired Principle of Compositionality of Meaning (PoC), for formal languages, may be construed as asserting that the meaning of a compound expression is deterministically (and often recursively) analysable in terms of the meaning of its constituents, taking into account the mode in which these constituents are combined so as to form the compound expression. From a logical point of view, this amounts to prescribing a constraint - that may or may not be respected - on the internal mechanisms that build and give meaning to a given formal system. Within the domain of formal semantics and of the structure of logical derivations, PoC is often directly reflected by metaproperties such as truth-functionality and analyticity, characteristic of computationally well-behaved logical systems.

The workshop GeTFun is dedicated to the study of various well-motivated ways in which the attractive properties and metaproperties of truth-functional logics may be stretched so as to cover more extensive logical grounds. The ubiquity of non-classical logics in the formalization of practical reasoning demands the formulation of more flexible theories of meaning and compositionality that allow for the establishment of coherent and inclusive bases for their understanding. Such investigations presuppose not only the development of adequate frameworks from the perspectives of Model Theory, Proof Theory and Universal Logic, but also the construction of solid bridges between the related approaches based on various generalizations of truth-functionality. Applications of broadly truth-functional logics, in their various guises, are envisaged in several areas of computer science, mathematics, philosophy and linguistics, where the ever increasing complexity of systems continuously raise new and difficult challenges to compositionality.


The workshop occurs within the scope of the Marie Curie EU FP7 IRSES project GeTFun.


Keynote Speakers


Analytic calculi for non-classical logics: The Baha'i method

Universality, naturality and logical systems

From non-deterministic semantics to ordinary Gentzen sequent calculi

Falsification, natural deduction, and bi-intuitionistic logic


Accepted Contributions


A dissimilarity-based approach to handling inconsistency in non-truth-functional logics

A theorem on compositionality and recursion

Toward a nondeterministic fuzzy logic

Do not be afraid of the unknown

On the correctness of the Thomason embedding

Alternative supervaluation for Kripke's theory of truth

(Non-)Compositionality in many-valued and two-dimensional logics

Finite-valued semantics for canonical labelled calculi

Malinowski modalization and the Leibniz hierarchy

The mistery of duality unraveled --- dualizing rules, operators, and logics

Developing a hierarchy of composition-nominative logics

On logical harmony, sequent systems and modality

A framework for specifying and reasoning in sequent calculus systems

Toward a notion of i-distance-based reasoning

The Tractarian collapse: On contradictions, nonsenses, mutilated truth-tables and limits of truth-functionality

Suszko-reduced logics and truth-functionality






The workshop welcomed submissions on all topics related to compositionality of meaning in logic, and in particular to issues connected to generalizations of metalogical notions such as:

Submissions consisted of an abstract of up to 1,000 words, sent by email before 1st Dec 2012 to the Gmail account: getfunw.