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Meeting Hintikka's Challenge to Paraconsistentism

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Author(s): Walter Carnielli

Journal: Principia : an International Journal of Epistemology
ISSN 1414-4247

Volume: 13;
Issue: 3;
Start page: 283;
Date: 2009;
Original page

Keywords: Independence friendly logic | paraconsistency | Socratic elenchi

ABSTRACT
Jaakko Hintikka, in a series of talks in Brazil in 2008, defended that IF (“independence- friendly”) logic and paraconsistent logic are, in a sense, very similar. Having sketched the proposal of a new paraconsistent system, he maintains that several achievements of IF logic could be reproducible in paraconsistent logic. One of the major difficulties, left as a challenge, would be to formulate some truth conditions for this new paraconsistent first-order language in order to make IF logic and paraconsistent logic more inter-related. My proposal is that this would demand an innovative game-theoretical semantic approach to paraconsistentism, but also that the syntax of the paraconsistent “Logics of Formal Inconsistency” can model the internal logic of Socratic elenchi. I aim to discuss these, and other points posed by Hintikka, as challenges and opportunities for paraconsistentism, paraconsistent logics and IF logics, as well as to raise some criticisms on Hintikka’s view about paraconsistency.
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