The logic of justification

Review of Symbolic Logic 1 (4):477-513 (2008)
Abstract
We describe a general logical framework, Justification Logic, for reasoning about epistemic justification. Justification Logic is based on classical propositional logic augmented by justification assertions t: F that read t is a justification for F. Justification Logic absorbs basic principles originating from both mainstream epistemology and the mathematical theory of proofs. It contributes to the studies of the well-known Justified True Belief vs. Knowledge problem. We state a general Correspondence Theorem showing that behind each epistemic modal logic, there is a robust system of justifications. This renders a new, evidence-based foundation for epistemic logic. As a case study, we offer a resolution of the GoldmanRed Barns in Justification Logic. Furthermore, we formalize the well-known Gettier example and reveal hidden assumptions and redundancies in Gettier’s reasoning
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DOI 10.1017/S1755020308090060
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References found in this work BETA
Reasoning About Knowledge.Ronald Fagin (ed.) - 2003 - MIT Press.
Philosophical Explanations.Robert Nozick - 1981 - Harvard University Press.
Is Justified True Belief Knowledge?Edmund Gettier - 1963 - Analysis 23 (6):121-123.
Knowledge and Belief.Jaakko Hintikka - 1962 - Ithaca: Cornell University Press.
Descriptions.Stephen Neale - 1990 - MIT Press.

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Citations of this work BETA
A Logic of Justification and Truthmaking.Alessandro Giordani - 2013 - Review of Symbolic Logic 6 (2):323-342.

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