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Rationality, logic, and probability: RatioLog

Abstract

The present research project consists of three large interrelated spheres, called `tasks'. These three tasks will support the main issues to be addressed, related to the notions of consistency, contradiction and evidence, which, together with their probabilistic interpretations, aim at reaching a more solid position on the general philosophy of paraconsistency, its understanding, its impact and its importance in the philosophy of science and in the philosophy of mathematics. Task I: Evidence, Probability and Logic intends to investigate probabilistic and possibilistic semantics, emphasizing some specially designed new logical systems, including the generalization of such ideas towards plausibility measures (\cite{fried-halpner:1995}) and (\cite{halpern:2001}). Task II: Non-Deterministic Methods: Hyperalgebraic Structures, Modalities, and Extensions of Probabilities aims to develop and apply results obtained from a multialgebra theory to specific logical systems and to the theory of probabilities;Task III: Contradictions, Evidence and Truth: Towards a Global Philosophy of Paraconsistency seeks to investigate technical and philosophical aspects of an epistemic approach to paraconsistency. The three tasks will support the general objectives of the present project, which are the study of the various aspects of formal rationality, logic and probability with special emphasis on new methods of algebra, semantics and probability theory, involving expansions of standard logic systems to non-classical logics. (AU)

Articles published in Agência FAPESP Newsletter about the research grant:
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VEICULO: TITULO (DATA)
VEICULO: TITULO (DATA)

Scientific publications (8)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
CONIGLIO, MARCELO E.; GOMEZ-PEREIRA, G. T.; FIGALLO, MARTIN. On a Four-Valued Logic of Formal Inconsistency and Formal Undeterminedness. STUDIA LOGICA, v. N/A, p. 42-pg., . (22/03862-2, 20/16353-3)
CONIGLIO, MARCELO E.. Ivlev-Like Modal Logics of Formal Inconsistency Obtained by Fibring Swap Structures. STUDIA LOGICA, v. N/A, p. 70-pg., . (20/16353-3)
CARNIELLI, WALTER; BUENO-SOLER, JULIANA. Where the Truth Lies: A Paraconsistent Approach to Bayesian Epistemology. STUDIA LOGICA, v. N/A, p. 22-pg., . (20/16353-3)
GISPERT, JOAN; ESTEVA, FRANCESC; GODO, LLUIS; CONIGLIO, MARCELO E.. On Nilpotent Minimum logics defined by lattice filters and their paraconsistent non-falsity preserving companions. LOGIC JOURNAL OF THE IGPL, v. N/A, p. 44-pg., . (20/16353-3)
CONIGLIO, MARCELO E.. Combining Swap Structures: The Case of Paradefinite Ivlev-Like Modal Logics Based on FDE. STUDIA LOGICA, v. N/A, p. 52-pg., . (20/16353-3)
CONIGLIO, MARCELO E.; FIGALLO, MARTIN. On n-valued Post algebras and n-valued Post logics: Twist-style representation and proof theory. FUZZY SETS AND SYSTEMS, v. 503, p. 19-pg., . (20/16353-3, 22/03862-2)
CONIGLIO, MARCELO E.; FIGALLO, MARTIN; RODRIGUES, ABILIO. Normalization and cut-elimination theorems for some logics of evidence and truth. JOURNAL OF LOGIC AND COMPUTATION, v. N/A, p. 24-pg., . (20/16353-3, 22/03862-2)
CONIGLIO, MARCELO E.; FIGALLO, MARTIN. Normal Proofs and Tableaux for the Font-Rius Tetravalent Modal Logic. LOGIC AND LOGICAL PHILOSOPHY, v. 33, n. 2, p. 33-pg., . (22/03862-2, 20/16353-3)