[FOM] 2nd CFP: Non-Classical Abstract Logics (UNILOG, Istanbul, 25-30 June 2015)

schang.fabien at voila.fr schang.fabien at voila.fr
Fri Nov 7 04:04:42 EST 2014

Non-Classical Abstract Logics
Workshop organized by:
Fabien Schang 
(National Research Institute, Higher School of Economics, Moscow)
James Trafford 
(University for the Creative Arts at Epsom, London)
Keynote speaker: Joao Marcos
Federal University of Rio Grande do Norte, Brazil
According to the “classical” view, logic is a theory of consequence , where Cn is taken to be either a relation between sets of formulas in a language L or an operator on formulas. By “classical” here, we do not mean the view of logic which is defined by a semantic model with only two truth-values (truth and falsity). Rather, we mean the broader sense in which the foundations of a logic have to do with a basic relation of truth-preservation. This workshop will question this view, and investigate alternatives. 
There are a number of suggestions available in the literature regarding what shape such a non-classical “abstract logic” might take. For example, from the point of view of semantics, Shramko and Wansing suggest a generalized theory of truth-values and entailment relations which do not solely preserve truth. From the point of view of dialogue, reasoning and inferentialism, a number of authors (e.g. Dutilh-Novaes; Restall; Ripley) both investigate the foundations of logical deduction and question the centrality of truth-preservation in the construction of logical systems. 
We think that there are three predominant attitudes that can be identified in the investigation of the abstract properties of logical systems. The first contends that every logical system has ultimately to do with different ways to preserve truth from premises to conclusion. The second questions the centrality of truth and makes room for more relations of consequence between premises and conclusion. Finally, the third is even more radical by questioning the very relation of consequence. Should the latter always be seen as a cornerstone in any abstract study of logic? In this vein, falsification, and relations of rejection, have been studied on a equal footing with truth-preservation (e.g. Słupecki, Skura). Such investigations may be understood as initiating a broader view of logical relations that could lead to a more comprehensive reflection on the discipline. In this regard, consequence, rejection, inference, or even mere difference (in the context of a wider reading of the logical concept of opposition) may be considered to be equally basic notions to investigate the foundations of logic. 
Call for Papers
Any contribution to the renewal of abstract logic (both in a “classical” or “non-classical” trend) will be welcome in this workshop, utilising various working methods (algebraic semantics, proof theory, sequent calculus, dialogues), and aiming at a unifying abstract theory of logic of the form . This includes questions concerning:
- the notion of consequence and its various facets
- the notion of rejection, as both a dual of consequence or a more complex (and independent) relation;
- “non”-classical abstract relations, like rejection or difference;
- logic and language-games;
- investigations regarding consequence and implication, opposition and duality, and pure negation.
Abstracts (500 words maximum) should be sent via e-mail before November 15th 2014 to:
schang.fabien at voila.fr
Notification of acceptance: December 1st 2014
Intended day for our workshop: June 27th, 2015
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