Eduardo Barrio, “Anti-Exceptionalism, Truth, and the BA-Plan”

Anti-Exceptionalism, Truth, and the BA-Plan

Eduardo Barrio (University of Buenos Aires) will present at the Virtual International Consortium for Truth Research (VICTR) on April 26, 10:00am EDT, on “Anti-Exceptionalism, Truth, and the BA-Plan”.

Abstract: Anti-exceptionalism about logic states that logical theories have no special epistemological status. Such theories are continuous with scientific theories. Contemporary anti-exceptionalists include data about semantic paradoxes as a part of the logical evidence. Exploring the Buenos Aires Plan, the recent development of the metainferential hierarchy of ST-logics shows that there are multiple options to deal with such paradoxes. There is a whole ST-based hierarchy, of which LP and ST themselves are only the first steps. The logics in this hierarchy are also options to analyze the inferential patterns allowed in a language that contains its own truth predicate. This talk explores these responses analyzing some reasons to go beyond the first steps. I will show that LP, ST, and the logics of the ST-hierarchy offer different diagnoses for the same evidence: the inferences and metainferences the agents endorse in the presence of the truth-predicate. But even if the data are not enough to adopt one of these logics, there are other elements to evaluate the revision of classical logic. How close should we be to classical logic? Which logic should be used during the revision? Should a logic be closed under its own rules? How could a logic obey the validities it contains? And mainly, which is the best explanation for the logical principles to deal with semantic paradoxes? I will argue that, if the answers to these questions are provided from an anti-exceptionalist perspective, ST-metainferential logics in general are the best available options.

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