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  1. The Paradox of Inference and the Non-Triviality of Analytic Information.Marie Duží - 2010 - Journal of Philosophical Logic 39 (5):473 - 510.
    The classical theory of semantic information (ESI), as formulated by Bar-Hillel and Carnap in 1952, does not give a satisfactory account of the problem of what information, if any, analytically and/or logically true sentences have to offer. According to ESI, analytically true sentences lack informational content, and any two analytically equivalent sentences convey the same piece of information. This problem is connected with Cohen and Nagel's paradox of inference: Since the conclusion of a valid argument is contained in the premises, (...)
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  • What is a Philosophical Question?Luciano Floridi - 2013 - Metaphilosophy 44 (3):195-221.
    There are many ways of understanding the nature of philosophical questions. One may consider their morphology, semantics, relevance, or scope. This article introduces a different approach, based on the kind of informational resources required to answer them. The result is a definition of philosophical questions as questions whose answers are in principle open to informed, rational, and honest disagreement, ultimate but not absolute, closed under further questioning, possibly constrained by empirical and logico-mathematical resources, but requiring noetic resources to be answered. (...)
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  • Skepticism and Information.Eric T. Kerr & Duncan Pritchard - 2012 - In Hilmi Demir (ed.), Philosophy of Engineering and Technology Volume 8. Springer.
    Philosophers of information, according to Luciano Floridi (The philosophy of information. Oxford University Press, Oxford, 2010, p 32), study how information should be “adequately created, processed, managed, and used.” A small number of epistemologists have employed the concept of information as a cornerstone of their theoretical framework. How this concept can be used to make sense of seemingly intractable epistemological problems, however, has not been widely explored. This paper examines Fred Dretske’s information-based epistemology, in particular his response to radical epistemological (...)
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  • Information Closure and the Sceptical Objection.Luciano Floridi - 2014 - Synthese 191 (6):1037-1050.
    In this article, I define and then defend the principle of information closure (pic) against a sceptical objection similar to the one discussed by Dretske in relation to the principle of epistemic closure. If I am successful, given that pic is equivalent to the axiom of distribution and that the latter is one of the conditions that discriminate between normal and non-normal modal logics, a main result of such a defence is that one potentially good reason to look for a (...)
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  • Are the Validities of Modal Logic Analytic? Or Analyticity Again, Through Information, Proof, Modal Logic and Hintikka.Francesca Poggiolesi - 2015 - Philosophia Scientae 19:221-243.
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  • More Reflections on Consequence.Julien Murzi & Massimiliano Carrara - 2014 - Logique Et Analyse 57 (227):223-258.
    This special issue collects together nine new essays on logical consequence :the relation obtaining between the premises and the conclusion of a logically valid argument. The present paper is a partial, and opinionated,introduction to the contemporary debate on the topic. We focus on two influential accounts of consequence, the model-theoretic and the proof-theoretic, and on the seeming platitude that valid arguments necessarilypreserve truth. We briefly discuss the main objections these accounts face, as well as Hartry Field’s contention that such objections (...)
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  • Hard and Soft Logical Information.Allo Patrick - 2017 - Journal of Logic and Computation:1-20.
    In this paper I use the distinction between hard and soft information from the dynamic epistemic logic tradition to extend prior work on informational conceptions of logic to include non-monotonic consequence-relations. In particular, I defend the claim that at least some non-monotonic logics can be understood on the basis of soft or “belief-like” logical information, and thereby question the orthodox view that all logical information is hard, “knowledge-like”, information.
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  • Recent Trends in Philosophical Logic (Proceedings of Trends in Logic XI).Roberto Ciuni, Heinrich Wansing & Caroline Willkommen (eds.) - 2014 - Cham, Switzerland: Springer.
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  • Inter-Model Connectives and Substructural Logics.Igor Sedlár - 2014 - In Roberto Ciuni, Heinrich Wansing & Caroline Willkommen (eds.), Recent Trends in Philosophical Logic (Proceedings of Trends in Logic XI). Springer. pp. 195-209.
    The paper provides an alternative interpretation of ‘pair points’, discussed in Beall et al., "On the ternary relation and conditionality", J. of Philosophical Logic 41(3), 595-612. Pair points are seen as points viewed from two different ‘perspectives’ and the latter are explicated in terms of two independent valuations. The interpretation is developed into a semantics using pairs of Kripke models (‘pair models’). It is demonstrated that, if certain conditions are fulfilled, pair models are validity-preserving copies of positive substructural models. This (...)
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  • Reasoning Processes as Epistemic Dynamics.Fernando Velázquez-Quesada - 2015 - Axiomathes 25 (1):41-60.
    This work proposes an understanding of deductive, default and abductive reasoning as different instances of the same phenomenon: epistemic dynamics. It discusses the main intuitions behind each one of these reasoning processes, and suggest how they can be understood as different epistemic actions that modify an agent’s knowledge and/or beliefs in a different way, making formal the discussion with the use of the dynamic epistemic logic framework. The ideas in this paper put the studied processes under the same umbrella, thus (...)
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  • A Plea for Non-Naturalism as Constructionism.Luciano Floridi - 2017 - Minds and Machines 27 (2):269-285.
    Contemporary science seems to be caught in a strange predicament. On the one hand, it holds a firm and reasonable commitment to a healthy naturalistic methodology, according to which explanations of natural phenomena should never overstep the limits of the natural itself. On the other hand, contemporary science is also inextricably and now inevitably dependent on ever more complex technologies, especially Information and Communication Technologies, which it exploits as well as fosters. Yet such technologies are increasingly “artificialising” or “denaturalising” the (...)
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  • Perception and Testimony as Data Providers.Luciano Floridi - 2014 - Logique Et Analyse 57 (226):71–95.
    This chapter addresses two questions. First, if knowledge is accounted information, how are we supposed (to apply this analysis in order) to understand perceptual knowledge and knowledge by testimony? In the first part of the chapter, I articulate an answer in terms of a re-interpretation of perception and testimony as data providers rather than full-blown cases of knowledge. Second, if perception and testimony are correctly understood as data providers, how are we supposed (to apply this analysis in order) to understand (...)
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  • Merging Observation and Access in Dynamic Logic.Johan van Benthem - unknown
    Rational agents base their actions on information from observation, inference, introspection, or other sources. But this information comes in different kinds, and it is usually handled by different logical mechanisms. We discuss how to integrate external ‘updating information’ and internal ‘elucidating information’ into one system of dynamic epistemic logic, by distinguishing two basic informational actions: ‘bare seeing’ versus ‘conscious realization’.
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  • Information, Possible Worlds and the Cooptation of Scepticism.Luciano Floridi - 2010 - Synthese 175 (1):63 - 88.
    The article investigates the sceptical challenge from an informationtheoretic perspective. Its main goal is to articulate and defend the view that either informational scepticism is radical, but then it is epistemologically innocuous because redundant; or it is moderate, but then epistemologically beneficial because useful. In order to pursue this cooptation strategy, the article is divided into seven sections. Section 1 sets up the problem. Section 2 introduces Borei numbers as a convenient way to refer uniformly to (the data that individuate) (...)
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  • What a Maker’s Knowledge Could Be.Luciano Floridi - 2018 - Synthese 195 (1):465-481.
    Three classic distinctions specify that truths can be necessary versus contingent,analytic versus synthetic, and a priori versus a posteriori. The philosopher reading this article knows very well both how useful and ordinary such distinctions are in our conceptual work and that they have been subject to many and detailed debates, especially the last two. In the following pages, I do not wish to discuss how far they may be tenable. I shall assume that, if they are reasonable and non problematic (...)
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  • The Scandal of Deduction and Aristotle’s Method for Discovering Syllogisms.Matthew Duncombe - 2021 - Rhizomata 8 (2):289-311.
    If a deductive argument is valid, then the conclusion is not novel. If the conclusion of an argument is not novel, the argument is not useful. So, if a deductive argument is valid, it is not useful. This conclusion,, is unacceptable. Since the argument is valid, we must reject at least one premise. So, should we reject or? This puzzle is usually known as the ‘scandal of deduction’. Analytic philosophers have tried to reject but have assumed premise. I argue here (...)
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  • A Defence of the Principle of Information Closure Against the Sceptical Objection.Luciano Floridi - 2013 - In Hanne Andersen, Dennis Dieks, Wenceslao González, Thomas Uebel & Gregory Wheeler (eds.), New Challenges to Philosophy of Science. Springer Verlag. pp. 35--47.
    The topic of this paper may be introduced by fast zooming in and out of the philosophy of information. In recent years, philosophical interest in the nature of information has been increasing steadily. This has led to a focus on semantic information, and then on the logic of being informed, which has attracted analyses concentrating both on the statal sense in which S holds the information that p (this is what I mean by logic of being informed in the rest (...)
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  • Normality, Non-contamination and Logical Depth in Classical Natural Deduction.Marcello D’Agostino, Dov Gabbay & Sanjay Modgil - 2020 - Studia Logica 108 (2):291-357.
    In this paper we provide a detailed proof-theoretical analysis of a natural deduction system for classical propositional logic that represents classical proofs in a more natural way than standard Gentzen-style natural deduction, admits of a simple normalization procedure such that normal proofs enjoy the Weak Subformula Property, provides the means to prove a Non-contamination Property of normal proofs that is not satisfied by normal proofs in the Gentzen tradition and is useful for applications, especially in formal argumentation, naturally leads to (...)
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  • Information Gain and Approaching True Belief.Jonas Clausen Mork - 2015 - Erkenntnis 80 (1):77-96.
    Recent years have seen a renewed interest in the philosophical study of information. In this paper a two-part analysis of information gain—objective and subjective—in the context of doxastic change is presented and discussed. Objective information gain is analyzed in terms of doxastic movement towards true belief, while subjective information gain is analyzed as an agent’s expectation value of her objective information gain for a given doxastic change. The resulting expression for subjective information gain turns out to be a familiar one (...)
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  • Metalogic and the Overgeneration Argument.Salvatore Florio & Luca Incurvati - 2019 - Mind 128 (511):761-793.
    A prominent objection against the logicality of second-order logic is the so-called Overgeneration Argument. However, it is far from clear how this argument is to be understood. In the first part of the article, we examine the argument and locate its main source, namely, the alleged entanglement of second-order logic and mathematics. We then identify various reasons why the entanglement may be thought to be problematic. In the second part of the article, we take a metatheoretic perspective on the matter. (...)
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