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  1. added 2020-03-11
    A Nonmonotonic Conditional Logic for Belief Revision.Hans Rott - 1991 - In André Fuhrmann & Michael Morreau (eds.), The Logic of Theory Change. Berlin: Springer. pp. 135–181.
    Using Gärdenfors's notion of epistemic entrenchment, we develop the semantics of a logic which accounts for the following points. It explains why we may generally infer `If ~A then B´ if all we know is AvB while must not generally infer `If ~A then B´ if all we know is {AvB, A}. More generally, it explains the nonmonotonic nature of the consequence relation governing languages which contain conditionals, and it explains how we can deduce conditionals from premise sets without conditionals. (...)
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  2. added 2020-02-07
    Simple Hyperintensional Belief Revision.F. Berto - 2018 - Erkenntnis 84 (3):559-575.
    I present a possible worlds semantics for a hyperintensional belief revision operator, which reduces the logical idealization of cognitive agents affecting similar operators in doxastic and epistemic logics, as well as in standard AGM belief revision theory. belief states are not closed under classical logical consequence; revising by inconsistent information does not perforce lead to trivialization; and revision can be subject to ‘framing effects’: logically or necessarily equivalent contents can lead to different revisions. Such results are obtained without resorting to (...)
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  3. added 2019-09-09
    Extracting Fictional Truth From Unreliable Sources.Emar Maier & Merel Semeijn - manuscript
    A fictional text is commonly viewed as constituting an invitation to play a certain game of make-believe, with the individual sentences written by the author providing the propositions we are to imagine and/or accept as true within the fiction. However, we can’t always take the text at face value. What narratologists call ‘unreliable narrators’ may present a confused or misleading picture of the fictional world. Meanwhile there has been a debate in philosophy about so-called ‘imaginative resistance’ in which we are (...)
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  4. added 2019-08-21
    Two Approaches to Belief Revision.Ted Shear & Branden Fitelson - 2019 - Erkenntnis 84 (3):487-518.
    In this paper, we compare and contrast two methods for the revision of qualitative beliefs. The first method is generated by a simplistic diachronic Lockean thesis requiring coherence with the agent’s posterior credences after conditionalization. The second method is the orthodox AGM approach to belief revision. Our primary aim is to determine when the two methods may disagree in their recommendations and when they must agree. We establish a number of novel results about their relative behavior. Our most notable finding (...)
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  5. added 2019-07-29
    Elementary Iterated Revision and the Levi Identity.Jake Chandler & Richard Booth - forthcoming - In Proceedings of the 7th International Conference on Logic, Rationality and Interaction (LORI 2019).
    Recent work has considered the problem of extending to the case of iterated belief change the so-called `Harper Identity' (HI), which defines single-shot contraction in terms of single-shot revision. The present paper considers the prospects of providing a similar extension of the Levi Identity (LI), in which the direction of definition runs the other way. We restrict our attention here to the three classic iterated revision operators--natural, restrained and lexicographic, for which we provide here the first collective characterisation in the (...)
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  6. added 2019-06-06
    What Can One Expect From Logic in the Law?: Notes • Discussion • Book Reviews.Eugenio Bulygin - 2008 - Ratio Juris 21 (1):150-156.
  7. added 2019-04-05
    Truth in Fiction, Impossible Worlds, and Belief Revision.Francesco Berto & Christopher Badura - 2019 - Australasian Journal of Philosophy 97 (1):178-193.
    We present a theory of truth in fiction that improves on Lewis's [1978] ‘Analysis 2’ in two ways. First, we expand Lewis's possible worlds apparatus by adding non-normal or impossible worlds. Second, we model truth in fiction as belief revision via ideas from dynamic epistemic logic. We explain the major objections raised against Lewis's original view and show that our theory overcomes them.
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  8. added 2018-12-13
    Revision by Comparison.Eduardo Fermé & Hans Rott - 2004 - Artificial Intelligence 157 (1):5-47.
    Since the early 1980s, logical theories of belief revision have offered formal methods for the transformation of knowledge bases or “corpora” of data and beliefs. Early models have dealt with unconditional acceptance and integration of potentially belief-contravening pieces of information into the existing corpus. More recently, models of “non-prioritized” revision were proposed that allow the agent rationally to refuse to accept the new information. This paper introduces a refined method for changing beliefs by specifying constraints on the relative plausibility of (...)
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  9. added 2018-11-06
    On Strengthening the Logic of Iterated Belief Revision: Proper Ordinal Interval Operators.Jake Chandler & Richard Booth - 2018 - In Michael Thielscher, Francesca Toni & Frank Wolter (eds.), Proceedings of the Sixteenth International Conference on Principles of Knowledge Representation and Reasoning (KR2018). Palo Alto, CA, USA: pp. 210-219.
    Darwiche and Pearl’s seminal 1997 article outlined a number of baseline principles for a logic of iterated belief revision. These principles, the DP postulates, have been supplemented in a number of alternative ways. Most suggestions have resulted in a form of ‘reductionism’ that identifies belief states with orderings of worlds. However, this position has recently been criticised as being unacceptably strong. Other proposals, such as the popular principle (P), aka ‘Independence’, characteristic of ‘admissible’ operators, remain commendably more modest. In this (...)
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  10. added 2018-07-15
    Epistemology in Latin America.Diego E. Machuca - 2018 - Stanford Encyclopedia of Philosophy.
    After presenting the current situation of epistemological research in Latin America and part of its history, this entry will address five topics: skepticism (especially in its Pyrrhonian stripe), core epistemology, formal epistemology, Wittgenstein’s thought in connection with epistemology and skepticism, and epistemology of law. It should be noted from the outset that the entry does not purport to provide a comprehensive account of epistemology in Latin America, but rather to paint a general picture of it by focusing on the main (...)
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  11. added 2018-06-09
    Belief Revision in Science: Informational Economy and Paraconsistency.Daniel Coimbra - 2017 - Contemplação 1 (15):19-38.
    In the present paper, our objective is to examine the application of belief revision models to scientific rationality. We begin by considering the standard model AGM, and along the way a number of problems surface that make it seem inadequate for this specific application. After considering three different heuristics of informational economy that seem fit for science, we consider some possible adaptations for it and argue informally that, overall, some paraconsistent models seem to better satisfy these principles, following Testa (2015). (...)
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  12. added 2018-04-17
    Unanimous Consensus Against AGM?Rush T. Stewart - 2017 - Thought: A Journal of Philosophy 6 (4):222-231.
    Given the role consensus is supposed to play in the social aspects of inquiry and deliberation, it is important that we may always identify a consensus as the basis of joint inquiry and deliberation. However, it turns out that if we think of an agent revising her beliefs to reach a consensus, then, on the received view of belief revision, AGM belief revision theory, certain simple and compelling consensus positions are not always available.
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  13. added 2018-02-17
    The Best of All PossibleWorlds: Where Interrogative Games Meet Research Agendas.Emmanuel Genot - 2011 - In Erik J. Olson Sebastian Enqvist (ed.), Belief Revision Meets Philosophy of Science. Springer. pp. 225--252.
    Erik J. Olsson and David Westlund have recently argued that the standard belief revision representation of an epistemic state is defective. In order to adequately model an epistemic state one needs, in addition to a belief set K and an entrenchment relation E, a research agenda A, i.e. a set of questions satisfying certain corpus-relative preconditions the agent would like to have answers to. Informally, the preconditions guarantee that the set of potential answers represent a partition of possible expansions of (...)
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  14. added 2018-02-17
    EPSA Epistemology and Methodology of Science: Launch of the European Philosophy of Science Association.M. Suàrez, M. Dorato & M. Rèdei (eds.) - 2009 - Springer.
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  15. added 2018-02-08
    Some Connections Between Epistemic Logic and the Theory of Nonadditive Probability.Philippe Mongin - 1992 - In Paul Humphreys (ed.), Patrick Suppes: Scientific Philosopher. Dordrecht: Kluwer. pp. 135-171.
    This paper is concerned with representations of belief by means of nonadditive probabilities of the Dempster-Shafer (DS) type. After surveying some foundational issues and results in the D.S. theory, including Suppes's related contributions, the paper proceeds to analyze the connection of the D.S. theory with some of the work currently pursued in epistemic logic. A preliminary investigation of the modal logic of belief functions à la Shafer is made. There it is shown that the Alchourrron-Gärdenfors-Makinson (A.G.M.) logic of belief change (...)
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  16. added 2017-10-13
    Belief Dynamics: (Epistemo)Logical Investigations.Allard Tamminga - 2001 - Dissertation, University of Amsterdam
    C.S. Peirce's and Isaac Levi's accounts of the belief-doubt-belief model are discussed and evaluated. It is argued that the contemporary study of belief change has metamorphosed into a branch of philosophical logic where empirical considerations have become obsolete. A case is made for reformulations of belief change systems that do allow for empirical tests. Last, a belief change system is presented that (1) uses finite representations of information, (2) can adequately deal with inconsistencies, (3) has finite operations of change, (4) (...)
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  17. added 2017-09-27
    Extending the Harper Identity to Iterated Belief Change.Jake Chandler & Richard Booth - 2016 - In Proceedings of the International Joint Conference on Artificial Intelligence (IJCAI).
    The field of iterated belief change has focused mainly on revision, with the other main operator of AGM belief change theory, i.e. contraction, receiving relatively little attention. In this paper we extend the Harper Identity from single-step change to define iterated contraction in terms of iterated revision. Specifically, just as the Harper Identity provides a recipe for defining the belief set resulting from contracting A in terms of (i) the initial belief set and (ii) the belief set resulting from revision (...)
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  18. added 2017-07-20
    AGM-Like Paraconsistent Belief Change.Rafael R. Testa, Marcelo E. Coniglio & Marcio M. Ribeiro - 2017 - Logic Journal of the IGPL 25 (4):632-672.
    Two systems of belief change based on paraconsistent logics are introduced in this article by means of AGM-like postulates. The first one, AGMp, is defined over any paraconsistent logic which extends classical logic such that the law of excluded middle holds w.r.t. the paraconsistent negation. The second one, AGMo , is specifically designed for paraconsistent logics known as Logics of Formal Inconsistency (LFIs), which have a formal consistency operator that allows to recover all the classical inferences. Besides the three usual (...)
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  19. added 2017-02-13
    Maatskappy, State, and Empire: A Pro-Boer Revision.Joseph R. Stromberg - 1999 - Journal of Libertarian Studies 14 (1; SEAS WIN):1-26.
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  20. added 2017-02-11
    Belief, Desire, and Revision.John Collins - 1988 - Mind 97 (387):333 - 342.
  21. added 2017-01-29
    Reduktion und Revision: Aspekte des nichtmonotonen Theorienwandels.Hans Rott - 1991 - Frankfurt, Germany: Peter Lang.
    The development of science does not proceed as a monotonous addition of information. A superior successor theory often contradicts its predecessor. The question as to what the logical relationship is between such theories, insofar as the transition from one to the other embodies continuity and progress, is the subject of this book. Proceeding from a discussion of intertheory reductions, the author proves that theories revision models from philosophical logic are fruitful for questions of scientific theory. Formal analyses of conditionals, autoepistemic (...)
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  22. added 2017-01-21
    Modellings for Belief Change: Prioritization and Entrenchment.Hans Rott - 1992 - Theoria 58 (1):21-57.
    We distinguish the set of explicit beliefs of a reasoner, his "belief base", from the beliefs that are merely implicit. Syntax-based belief change governed by the structure of the belief base and the ranking ("prioritization") of its elements is reconstructed with the help of an epistemic entrenchment relation in the style of Gärdenfors and Makinson. Though priorities are essentially different from entrenchments, distinguished relations of epistemic entrenchment may be obtained from prioritized belief bases by a number of different constructions. An (...)
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  23. added 2017-01-19
    Belief Change as Change in Epistemic Entrenchment.Abhaya C. Nayak, Paul Nelson & Hanan Polansky - 1996 - Synthese 109 (2):143 - 174.
    In this paper, it is argued that both the belief state and its input should be represented as epistemic entrenchment (EE) relations. A belief revision operation is constructed that updates a given EE relation to a new one in light of an evidential EE relation, and an axiomatic characterization of this operation is given. Unlike most belief revision operations, the one developed here can handle both multiple belief revision and iterated belief revision.
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  24. added 2017-01-18
    Refined Epistemic Entrenchment.Thomas Andreas Meyer, Willem Adrian Labuschagne & Johannes Heidema - 2000 - Journal of Logic, Language and Information 9 (2):237-259.
    Epistemic entrenchment, as presented by Gärdenfors and Makinson (1988) and Gärdenfors (1988), is a formalisation of the intuition that, when forced to choose between two beliefs, an agent will giveup the less entrenched one. While their formalisation satisfactorilycaptures the intuitive notion of the entrenchment of beliefs in a number ofaspects, the requirement that all wffs be comparable has drawn criticismfrom various quarters. We define a set of refined versions of theirentrenchment orderings that are not subject to the same criticism, andinvestigate (...)
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  25. added 2017-01-15
    Iterated Belief Revision.Robert Stalnaker - 2009 - Erkenntnis 70 (2):189-209.
    This is a discussion of the problem of extending the basic AGM belief revision theory to iterated belief revision: the problem of formulating rules, not only for revising a basic belief state in response to potential new information, but also for revising one’s revision rules in response to potential new information. The emphasis in the paper is on foundational questions about the nature of and motivation for various constraints, and about the methodology of the evaluation of putative counterexamples to proposed (...)
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  26. added 2016-09-23
    Frontloading, Supposition, and Contraction.Bryan Pickel - 2016 - Philosophical Quarterly 66 (264):559-578.
    In Constructing the World, Chalmers observes that our knowledge exceeds the core evidence provided by our senses and introspection. Thus, on the basis of core evidence, one also can know (S) that water covers the majority of the Earth. This knowledge, Chalmers suggests, requires a great deal of apriori knowledge. Chalmers argues that even if one suspends belief in one’s core evidence, one can nevertheless reason from a description of this evidence to an ordinary claim such as S. Chalmers concludes (...)
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  27. added 2016-04-01
    Belief Revision I: The AGM Theory.Franz Huber - 2013 - Philosophy Compass 8 (7):604-612.
    Belief revision theory studies how an ideal doxastic agent should revise her beliefs when she receives new information. In part I I will first present the AGM theory of belief revision (Alchourrón & Gärdenfors & Makinson 1985). Then I will focus on the problem of iterated belief revisions.
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  28. added 2016-04-01
    Belief Revision II: Ranking Theory.Franz Huber - 2013 - Philosophy Compass 8 (7):613-621.
    Belief revision theory studies how an ideal doxastic agent should revise her beliefs when she receives new information. In part I, I have first presented the AGM theory of belief revision. Then I have focused on the problem of iterated belief revisions. In part II, I will first present ranking theory (Spohn 1988). Then I will show how it solves the problem of iterated belief revisions. I will conclude by sketching two areas of future research.
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  29. added 2016-03-01
    An Epistemically Modest Response to Disagreement, AGM-Ified.Lee Elkin - 2015 - The Reasoner 9 (9):76-77.
    In this short paper, I show that AGM belief contraction is appropriate for modeling an epistemically modest response to a disagreement with an epistemic peer.
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  30. added 2016-02-27
    Three Floors for the Theory of Theory Change.Hans Rott - 2014 - In Vít Punčochář & Michal Dančák (eds.), The Logica Yearbook 2013. London: College Publications. pp. 187–205.
    The theory of theory change due to Alchourrón, Gärdenfors and Makinson ("AGM") has been widely known as being characterized by two sets of postulates, one being very weak and the other being very strong. Commenting on the three classic constructions of partial meet contraction, safe contraction and entrenchment-based construction, I argue that three intermediate levels can be distinguished that play decisive roles within the AGM theory.
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  31. added 2016-02-27
    Four Floors for the Theory of Theory Change: The Case of Imperfect Discrimination.Hans Rott - 2014 - In Eduardo Fermé & João Leite (eds.), Logics in Artificial Intelligence: 13th European Conference (JELIA 2014). Cham: Springer. pp. 368–382.
    The classical qualitative theory of belief change due to Alchourrón, Gärdenfors and Makinson has been widely known as being characterised by two packages of postulates. While the basic package consists of six postulates and is very weak, the full package that adds two further postulates is very strong. I revisit two classic constructions of theory contraction, viz., relational possible worlds contraction and entrenchment-based contraction and argue that four intermediate levels can be distinguished that play - or ought to play - (...)
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  32. added 2016-02-27
    Guest Editors' Introduction.Giacomo Bonanno, James Delgrande & Hans Rott - 2012 - Journal of Philosophical Logic 41 (1):1-5.
    The contributions to the Special Issue on Multiple Belief Change, Iterated Belief Change and Preference Aggregation are divided into three parts. Four contributions are grouped under the heading "multiple belief change" (Part I, with authors M. Falappa, E. Fermé, G. Kern-Isberner, P. Peppas, M. Reis, and G. Simari), five contributions under the heading "iterated belief change" (Part II, with authors G. Bonanno, S.O. Hansson, A. Nayak, M. Orgun, R. Ramachandran, H. Rott, and E. Weydert). These papers do not only pick (...)
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  33. added 2016-02-27
    Bounded Revision: Two-Dimensional Belief Change Between Conservative and Moderate Revision.Hans Rott - 2012 - Journal of Philosophical Logic 41 (1):173-200.
    This paper presents the model of ‘bounded revision’ that is based on two-dimensional revision functions taking as arguments pairs consisting of an input sentence and a reference sentence. The key idea is that the input sentence is accepted as far as (and just a little further than) the reference sentence is ‘cotenable’ with it. Bounded revision satisfies the AGM axioms as well as the Same Beliefs Condition (SBC) saying that the set of beliefs accepted after the revision does not depend (...)
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  34. added 2016-02-26
    Safe Contraction Revisited.Hans Rott & Sven Ove Hansson - 2014 - In Sven Ove Hansson (ed.), David Makinson on Classical Methods for Non-Classical Problems (Outstanding Contributions to Logic, Vol. 3). Dordrecht: Springer. pp. 35–70.
    Modern belief revision theory is based to a large extent on partial meet contraction that was introduced in the seminal article by Carlos Alchourrón, Peter Gärdenfors, and David Makinson that appeared in 1985. In the same year, Alchourrón and Makinson published a significantly different approach to the same problem, called safe contraction. Since then, safe contraction has received much less attention than partial meet contraction. The present paper summarizes the current state of knowledge on safe contraction, provides some new results (...)
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  35. added 2016-02-26
    Degrees All the Way Down: Beliefs, Non-Beliefs and Disbeliefs.Hans Rott - 2009 - In Franz Huber & Christoph Schmidt-Petri (eds.), Degrees of Belief. Springer. pp. 301--339.
    This paper combines various structures representing degrees of belief, degrees of disbelief, and degrees of non-belief (degrees of expectations) into a unified whole. The representation uses relations of comparative necessity and possibility, as well as non-probabilistic functions assigning numerical values of necessity and possibility. We define all-encompassing necessity structures which have weak expectations (mere hypotheses, guesses, conjectures, etc.) occupying the lowest ranks and very strong, ineradicable ('a priori') beliefs occupying the highest ranks. Structurally, there are no differences from the top (...)
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  36. added 2016-02-26
    Information Structures in Belief Revision.Hans Rott - 2008 - In Johan Van Benthem & Pieter Adriaans (eds.), Philosophy of Information, Vol. 8 of the Handbook of the Philosophy of Science. Amsterdam: Elsevier. pp. 457–482.
    This is a survey paper. Contents: 1 Introduction ― 2 Preliminary remarks on information, truth and mind - 2.1 Remarks on information and truth - 2.2 Some clues from the philosophy of mind - 2.3 Functionalism as applied to belief revision - 2.4 Filling in the parameters ― 3 Belief change = revision + reflection - 3.1 Foundationalism - 3.2 Coherentism ― 4 Inference operations for simple change operations: three examples - 4.1 Example 1: flat data bases - 4.2 Example (...)
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  37. added 2016-02-26
    Shifting Priorities: Simple Representations for Twenty-Seven Iterated Theory Change Operators.Hans Rott - 2006 - In David Makinson, Jacek Malinowski & Heinrich Wansing (eds.), Towards Mathematical Philosophy. Dordrecht: Springer. pp. 269–296.
    Prioritized bases, i.e., weakly ordered sets of sentences, have been used for specifying an agent’s ‘basic’ or ‘explicit’ beliefs, or alternatively for compactly encoding an agent’s belief state without the claim that the elements of a base are in any sense basic. This paper focuses on the second interpretation and shows how a shifting of priorities in prioritized bases can be used for a simple, constructive and intuitive way of representing a large variety of methods for the change of belief (...)
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  38. added 2016-02-26
    Coherence and Conservatism in the Dynamics of Belief. Part II: Iterated Belief Change Without Dispositional Coherence.Hans Rott - 2003 - Journal of Logic and Computation 13 (1):111-145.
    This paper studies the idea of conservatism with respect to belief change strategies in the setting of unary, iterated belief revision functions (based on the conclusions of Rott, ‘Coherence and Conservatism in the Dynamics of Belief, Part I: Finding the Right Framework’, Erkenntnis 50, 1999, 387–412). Special attention is paid to the case of ‘basic belief change’ where neither the (weak) AGM postulates concerning conservatism with respect to beliefs nor the (stong) supplementary AGM postulates concerning dispositional coherence need to be (...)
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  39. added 2016-02-26
    Basic Entrenchment.Hans Rott - 2003 - Studia Logica 73 (2):257-280.
    In contrast to other prominent models of belief change, models based on epistemic entrenchment have up to now been applicable only in the context of very strong packages of requirements for belief revision. This paper decomposes the axiomatization of entrenchment into independent modules. Among other things it is shown how belief revision satisfying only the 'basic' postulates of Alchourrón, Gärdenfors and Makinson can be represented in terms of entrenchment.
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  40. added 2016-02-26
    Change, Choice and Inference: A Study of Belief Revision and Nonmonotonic Reasoning.Hans Rott - 2001 - Oxford University Press.
    Change, Choice and Inference develops logical theories that are necessary both for the understanding of adaptable human reasoning and for the design of intelligent systems. The book shows that reasoning processes - the drawing on inferences and changing one's beliefs - can be viewed as belonging to the realm of practical reason by embedding logical theories into the broader context of the theory of rational choice. The book unifies lively and significant strands of research in logic, philosophy, economics and artificial (...)
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  41. added 2016-02-26
    Coherence and Conservatism in the Dynamics of Belief Part I: Finding the Right Framework.Hans Rott - 1999 - Erkenntnis 50 (2-3):387-412.
    In this paper I discuss the foundations of a formal theory of coherent and conservative belief change that is suitable to be used as a method for constructing iterated changes of belief, sensitive to the history of earlier belief changes, and independent of any form of dispositional coherence. I review various ways to conceive the relationship between the beliefs actually held by an agent and her belief change strategies, show the problems they suffer from, and suggest that belief states should (...)
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  42. added 2015-12-30
    Explanations in K: An Analysis of Explanation as a Belief Revision Operation.Andrés Páez - 2006 - Athena Verlag.
    Explanation and understanding are intimately connected notions, but the nature of that connection has generally not been considered a topic worthy of serious philosophical investigation. Most authors have avoided making reference to the notion of understanding in their accounts of explanation because they fear that any mention of the epistemic states of the individuals involved compromises the objectivity of explanation. Understanding is a pragmatic notion, they argue, and pragmatics should be kept at a safe distance from the universal features of (...)
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  43. added 2015-12-28
    Paraconsistent Belief Revision Based on a Formal Consistency Operator.Rafael R. Testa, Marcelo E. Coniglio & Márcio M. Ribeiro - 2015 - CLE E-Prints 15 (8):01-11.
    In this paper two systems of AGM-like Paraconsistent Belief Revision are overviewed, both defined over Logics of Formal Inconsistency (LFIs) due to the possibility of defining a formal consistency operator within these logics. The AGM° system is strongly based on this operator and internalize the notion of formal consistency in the explicit constructions and postulates. Alternatively, the AGMp system uses the AGM-compliance of LFIs and thus assumes a wider notion of paraconsistency - not necessarily related to the notion of formal (...)
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  44. added 2015-06-17
    Preservation, Commutativity and Modus Ponens: Two Recent Triviality Results.Jake Chandler - 2017 - Mind 126 (502):579-602.
    In a recent pair of publications, Richard Bradley has offered two novel no-go theorems involving the principle of Preservation for conditionals, which guarantees that one’s prior conditional beliefs will exhibit a certain degree of inertia in the face of a change in one’s non-conditional beliefs. We first note that Bradley’s original discussions of these results—in which he finds motivation for rejecting Preservation, first in a principle of Commutativity, then in a doxastic analogue of the rule of modus ponens —are problematic (...)
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  45. added 2014-08-08
    Construction and Revision of Spatial Mental Models Under High Task Demand.Jelica Nejasmic, Leandra Bucher, Paul D. Thorn & Markus Knauff - 2014 - In Paul Bello, Marcello Guarini, Marjorie McShane & Brian Scassellati (eds.), Proceedings of the 36th Annual Conference of the Cognitive Science Society. Cognitive Science Society. pp. 1066-72.
    Individuals often revise their beliefs when confronted with contradicting evidence. Belief revision in the spatial domain can be regarded as variation of initially constructed spatial mental models. Construction and revision usually follow distinct cognitive principles. The present study examines whether principles of revisions which follow constructions under high task demands differ from principles applied after less demanding constructions. We manipulated the task demands for model constructions by means of the continuity with which a spatial model was constructed. We administered tasks (...)
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  46. added 2014-08-08
    Minimality Criteria in Spatial Belief Revision.Leandra Bucher & Paul D. Thorn - 2014 - In Paul Bello, Marcello Guarini, Marjorie McShane & Brian Scassellati (eds.), Proceedings of the 36th Annual Conference of the Cognitive Science Society. Cognitive Science Society. pp. 1952-8.
    Agents typically revise their beliefs when confronted with evidence that contradicts those beliefs, selecting from a number of possible revisions sufficient to reestablish consistency. In cases where an individual’s beliefs concern spatial relations, belief revision has been fruitfully treated as a decision about which features of an initially constructed spatial mental model to modify. A normative claim about belief revision maintains that agents should prefer minimal belief revisions. Yet recent studies have rebutted the preceding claim, where minimality is understood to (...)
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  47. added 2014-05-12
    Katz’s Revisability Paradox Dissolved.Allard Tamminga & Sander Verhaegh - 2013 - Australasian Journal of Philosophy 91 (4):771-784.
    Quine's holistic empiricist account of scientific inquiry can be characterized by three constitutive principles: *noncontradiction*, *universal revisability* and *pragmatic ordering*. We show that these constitutive principles cannot be regarded as statements within a holistic empiricist's scientific theory of the world. This claim is a corollary of our refutation of Katz's [1998, 2002] argument that holistic empiricism suffers from what he calls the Revisability Paradox. According to Katz, Quine's empiricism is incoherent because its constitutive principles cannot themselves be rationally revised. Using (...)
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  48. added 2014-03-28
    Selective Revision.Eduardo L. Fermé & Sven Ove Hansson - 1999 - Studia Logica 63 (3):331-342.
    We introduce a constructive model of selective belief revision in which it is possible to accept only a part of the input information. A selective revision operator ο is defined by the equality K ο α = K * f(α), where * is an AGM revision operator and f a function, typically with the property ⊢ α → f(α). Axiomatic characterizations are provided for three variants of selective revision.
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  49. added 2014-03-22
    Expansion and Contraction of Finite States.Allard Tamminga - 2004 - Studia Logica 76 (3):427-442.
    We present a theory that copes with the dynamics of inconsistent information. A method is set forth to represent possibly inconsistent information by a finite state. Next, finite operations for expansion and contraction of finite states are given. No extra-logical element — a choice function or an ordering over (sets of) sentences — is presupposed in the definition of contraction. Moreover, expansion and contraction are each other's duals. AGM-style characterizations of these operations follow.
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  50. added 2014-03-11
    Isaac Levi's kenleer: een kritische beschouwing.Allard Tamminga - 2002 - Algemeen Nederlands Tijdschrift voor Wijsbegeerte 94 (2):124-145.
    Levi, setting out to formalize Peirce's and Dewey's *belief-doubt-belief*-model, took the lead in defining the field of philosophical logic that has become known as *belief change*. First, Levi's theory of knowledge is placed within the context of American pragmatism. A discussion follows of Levi's criteria under which a change of belief must be judged an improvement. In the final section, a critical evaluation of Levi's logical epistemology opens new venues for logical and epistemological inquiry.
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