Deontic Logic

Edited by Matteo Pascucci (Slovak Academy of Sciences, Central European University)
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Summary Deontic logic can be described as the rigorous study of the deductive and semantic behaviour of normative concepts.
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  1. added 2020-05-25
    Truthmakers and Normative Conflicts.Albert Anglberger & Johannes Korbmacher - 2020 - Studia Logica 108 (1):49-83.
    By building on work by Kit Fine, we develop a sound and complete truthmaker semantics for Lou Goble’s conflict tolerant deontic logic BDL.
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  2. added 2020-05-25
    From Oughts to Goals: A Logic for Enkrasia.Dominik Klein & Alessandra Marra - 2020 - Studia Logica 108 (1):85-128.
    This paper focuses on the Enkratic principle of rationality, according to which rationality requires that if an agent sincerely and with conviction believes she ought to X, then X-ing is a goal in her plan. We analyze the logical structure of Enkrasia and its implications for deontic logic. To do so, we elaborate on the distinction between basic and derived oughts, and provide a multi-modal neighborhood logic with three characteristic operators: a non-normal operator for basic oughts, a non-normal operator for (...)
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  3. added 2020-05-25
    Deontology of Compound Actions.Janusz Czelakowski - 2020 - Studia Logica 108 (1):5-47.
    This paper, being a companion to the book [2] elaborates the deontology of sequential and compound actions based on relational models and formal constructs borrowed from formal linguistics. The semantic constructions presented in this paper emulate to some extent the content of [3] but are more involved. Although the present work should be regarded as a sequel of [3] it is self-contained and may be read independently. The issue of permission and obligation of actions is presented in the form of (...)
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  4. added 2020-05-25
    From Permissions to Obligations and Beyond: An Editorial.P. Kulicki & O. Roy - 2020 - Studia Logica 108 (1):1-3.
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  5. added 2020-05-25
    Understanding Hohfeld and Formalizing Legal Rights: The Hohfeldian Conceptions and Their Conditional Consequences.Réka Markovich - 2020 - Studia Logica 108 (1):129-158.
    Hohfeld’s analysis on the different types of rights and duties is highly influential in analytical legal theory, and it is considered as a fundamental theory in AI&Law and normative multi-agent systems. Yet a century later, the formalization of this theory remains, in various ways, unresolved. In this paper I provide a formal analysis of how the working of a system containing Hohfeldian rights and duties can be delineated. This formalization starts from using the same tools as the classical ones by (...)
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  6. added 2020-05-01
    Social Ontology and Social Normativity.Brian Donohue - 2020 - Dissertation, University at Buffalo
    Many recent accounts of the ontology of groups, institutions, and practices have touched upon the normative or deontic dimensions of social reality (e.g., social obligations, claims, permissions, prohibitions, authority, and immunity), as distinct from any specifically moral values or obligations. For the most part, however, the ontology of such socio-deontic phenomena has not received the attention it deserves. In what sense might a social obligation or a claim exist? What is the ontological status of such an obligation (e.g., is it (...)
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  7. added 2020-04-05
    Introduzione alle Logiche Modali.Marcello Frixione, Samuele Iaquinto & Massimiliano Vignolo - 2016 - Roma-Bari: Laterza.
    La logica modale è nata per studiare i ragionamenti su ciò che è possibile e ciò che è necessario. Negli ultimi decenni, a partire dal lavoro di logici e filosofi quali Rudolf Carnap, Saul Kripke e David Lewis, la sua applicazione è stata progressivamente estesa ad altri ambiti, quali il ragionamento sul tempo, sulla conoscenza e sui sistemi di norme. Queste ricerche hanno condotto a un complesso e intrigante dialogo con alcune fondamentali branche della filosofia: la metafisica, l’epistemologia, la filosofia (...)
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  8. added 2020-03-27
    Cubes and Hypercubes of Opposition, with Ethical Ruminations on Inviolability.Frode Bjørdal - 2016 - Logica Universalis 10 (2-3):373-376.
    We show that we in ways related to the classical Square of Opposition may define a Cube of Opposition for some useful statements, and we as a by-product isolate a distinct directive of being inviolable which deserves attention; a second central purpose is to show that we may extend our construction to isolate hypercubes of opposition of any finite cardinality when given enough independent modalities. The cube of opposition for obligations was first introduced publically in a lecture for the Square (...)
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  9. added 2020-02-11
    Agency and Deontic Logic.Paul Mcnamara - 2004 - Mind 113 (449):179-185.
    This is a review of John Horty's book, _Agency and Deontic Logic_, OUP 2000.
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  10. added 2020-02-03
    A Structured Argumentation Framework for Detaching Conditional Obligations.Mathieu Beirlaen & Christian Straßer - 2016 - In A. Tamminga O. Roy & M. Willer (eds.), Proceedings of Deon 2016. College Publications. pp. 32--48.
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  11. added 2020-02-03
    A Paraconsistent Multi-Agent Framework for Dealing with Normative Conflicts.Mathieu Beirlaen & Christian Straßer - 2011 - In Joao Leite, Paolo Torroni, Thomas Agotnes, Guido Boella & Leon van der Torre (eds.), Computational Logic in Multi-Agent Systems. CLIMA 2011. Lecture Notes in Computer Science, vol 6814. Berlin, Germany: Springer. pp. 312–329.
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  12. added 2020-01-26
    Deontic Modality in Rationality and Reasoning.Alessandra Marra - 2019 - Dissertation, Tilburg University
    The present dissertation investigates certain facets of the logical structure of oughts – where “ought” is used as a noun, roughly meaning obligation. I do so by following two lines of inquiry. The first part of the thesis places oughts in the context of practical rationality. The second part of the thesis concerns the inference rules governing arguments about oughts, and specifically the inference rule of Reasoning by Cases. These two lines of inquiry, together, aim to expound upon oughts in (...)
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  13. added 2019-12-12
    From Ideal Worlds to Ideality.Craig Warmke - forthcoming - Journal of the American Philosophical Association.
    In common treatments of deontic logic, the obligatory is what's true in all deontically ideal possible worlds. In this article, I offer a new semantics for Standard Deontic Logic with Leibnizian intensions rather than possible worlds. Even though the new semantics furnishes models that resemble Venn diagrams, the semantics captures the strong soundness and completeness of Standard Deontic Logic. Since, unlike possible worlds, many Leibnizian intensions are not maximally consistent entities, we can amend the semantics to invalidate the inference rule (...)
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  14. added 2019-10-14
    A Realistic View on Normative Conflicts.Daniela Glavaničová & Matteo Pascucci - forthcoming - Logic and Logical Philosophy.
    Kulicki and Trypuz (2016) introduced three systems of multivalued deontic action logic to handle normative conflicts. The first system suggests a pessimistic view on normative conflicts, according to which any conflicting option represents something forbidden; the second system suggests an optimistic view, according to which any conflicting option represents something obligatory; finally, the third system suggests a neutral view, according to which any conflicting option represents something that is neither obligatory nor forbidden. The aim of the present paper is to (...)
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  15. added 2019-10-08
    Hohfeld in Cyberspace and Other Applications of Normative Reasoning in Agent Technology.Christen Krogh & Henning Herrestad - 1999 - Artificial Intelligence and Law 7 (1):81-96.
    Two areas of importance for agents and multiagent systems are investigated: design of agent programming languages, and design of agent communication languages. The paper contributes in the above mentioned areas by demonstrating improved or novel applications for deontic logic and normative reasoning. Examples are taken from computer-supported cooperative work, and electronic commerce.
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  16. added 2019-09-25
    A Logic for Reasoning About Group Norms.Daniele Porello - 2018 - In Jan M. Broersen, Gabriella Pigozzi, Cleo Condoravdi & Shyam Nair (eds.), Deontic Logic and Normative Systems - 14th International Conference, {DEON} 2018, Utrecht, The Netherlands, July 3-6, 2018. Londra, Regno Unito: pp. 301--315.
    We present a number of modal logics to reason about group norms. As a preliminary step, we discuss the ontological status of the group to which the norms are applied, by adapting the classification made by Christian List of collective attitudes into aggregated, common, and corporate attitudes. Accordingly, we shall introduce modality to capture aggregated, common, and corporate group norms. We investigate then the principles for reasoning about those types of modalities. Finally, we discuss the relationship between group norms and (...)
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  17. added 2019-09-22
    Deontic Logic and Natural Language.Fabrizio Cariani - forthcoming - In Dov Gabbay, Ron van der Meyden, John Horty, Xavier Parent & Leandert van der Torre (eds.), The Handbook of Deontic Logic (Vol. II). College Publications.
    There has been a recent surge of work on deontic modality within philosophy of language. This work has put the deontic logic tradition in contact with natural language semantics, resulting in significant increase in sophistication on both ends. This chapter surveys the main motivations, achievements, and prospects of this work.
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  18. added 2019-09-12
    Formal Analysis of Responsibility Attribution in a Multimodal Framework.Daniela Glavaničová & Matteo Pascucci - 2019 - In Matteo Baldoni, Mehdi Dastani, Beishui Liao, Yuko Sakurai & Rym Zalila Wenkstern (eds.), PRIMA 2019: Principles and Practice of Multi-Agent Systems. Springer. pp. 36-51.
    The present article is devoted to a logical treatment of some fundamental concepts involved in responsibility attribution. We specify a theoretical framework based on a language of temporal deontic logic with agent-relative operators for deliberate causal contribution. The framework is endowed with a procedure to solve normative conflicts which arise from the assessment of different normative sources. We provide a characterization result for a basic system within this framework and illustrate how the concepts formalized can be put at work in (...)
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  19. added 2019-09-12
    Automated Reasoning in Normative Detachment Structures with Ideal Conditions.Tomer Libal & Matteo Pascucci - 2019 - In ICAIL 2019: International Conference on Artificial Intelligence and Law. ACM. pp. 63-72.
    In this article we introduce a logical structure for normative reasoning, called Normative Detachment Structure with Ideal Conditions, that can be used to represent the content of certain legal texts in a normalized way. The structure exploits the deductive properties of a system of bimodal logic able to distinguish between ideal and actual normative statements, as well as a novel formalization of conditional normative statements able to capture interesting cases of contrary-to-duty reasoning and to avoid deontic paradoxes. Furthermore, we illustrate (...)
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  20. added 2019-08-18
    Formalizing Kant’s Rules.Richard Evans, Andrew Stephenson & Marek Sergot - 2019 - Journal of Philosophical Logic 48:1-68.
    This paper formalizes part of the cognitive architecture that Kant develops in the Critique of Pure Reason. The central Kantian notion that we formalize is the rule. As we interpret Kant, a rule is not a declarative conditional stating what would be true if such and such conditions hold. Rather, a Kantian rule is a general procedure, represented by a conditional imperative or permissive, indicating which acts must or may be performed, given certain acts that are already being performed. These (...)
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  21. added 2019-08-01
    Deóntica de la negación en Jerzy Sztykgold.Amedeo G. Conte - 1995 - Theoria: Revista de Teoría, Historia y Fundamentos de la Ciencia 10 (1):163-190.
    This essay deals with the concept of negation in Deontics. In relation with this concept, the polish logician Jerzy Sztykgold seems to put forward these two thesis: a) a norm may have a negation; b) a norm may be a negation. Sztykgold studies the concept of Inegation of a norm through the analysis of other two concepts of a right or of a duty and the concept of opposition of behaviour), and, as early as 1936, he puts hirnself in a (...)
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  22. added 2019-07-21
    Duty and Sacrifice: A Logical Analysis of the Mīmāṃsā Theory of Vedic Injunctions.Elisa Freschi, Andrew Ollett & Matteo Pascucci - 2019 - History and Philosophy of Logic 40 (4):323-354.
    The Mīmāṃsā school of Indian philosophy has for its main purpose the interpretation of injunctions that are found in a set of sacred texts, the Vedas. In their works, Mīmāṃsā authors provide some of the most detailed and systematic examinations available anywhere of statements with a deontic force; however, their considerations have generally not been registered outside of Indological scholarship. In the present article we analyze the Mīmāṃsā theory of Vedic injunctions from a logical and philosophical point of view. The (...)
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  23. added 2019-06-06
    Normatividad semántica y reglas deónticas.Alfonso García Suárez - 2010 - Theoria: Revista de Teoría, Historia y Fundamentos de la Ciencia 25 (1):5-20.
    RESUMEN: La tesis según la cual el significado es normativo ha recibido diferentes formulaciones. En § 2 se introducen dos clases de formulaciones: las que emplean conceptos evaluativos y las que emplean conceptos deónticos. En § 3 se examinan las objeciones recientes de Hattiangadi a la posibilidad de una formulación en términos prescriptivos. § 4 contiene un intento de formular la tesis de la normatividad por medio de una regla en la que se emplean los conceptos deónticos de permisión y (...)
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  24. added 2019-06-06
    Gerhard Schurz, The Is-Ought Problem: An Investigation in Philosophical Logic.C. Pigden - 2001 - Australasian Journal of Philosophy 79 (4):578-579.
    Book Information The Is-Ought Problem: An Investigation in Philosophical Logic. By Gerhard Schurz. Kluwer. Dordrecht. 1997. Pp. x + 332. £92.25.
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  25. added 2019-06-06
    Conditionality and Ross’s Deontic Distinction.Azizah al-Hibri - 1980 - Southwestern Journal of Philosophy 11 (1):79-87.
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  26. added 2019-06-06
    Comments on "Individuation and Non-Identity": A Reply to Héctor-Neri Castañeda.Michael Loux - 1976 - Critica 8 (22):105-108.
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  27. added 2019-06-06
    `Ought' and Assumption in Moral Philosophy.Jonathan Bennett & Hector-Neri Castaneda - 1970 - Journal of Symbolic Logic 35 (1):134.
  28. added 2019-06-06
    Acts, the Logic of Obligation, and Deontic Calculi.Héctor-Neri Castañeda - 1967 - Critica 1 (1):77-99.
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  29. added 2019-06-06
    The Contrary-to-Fact Conditional.J. C. C. McKinsey & Roderick M. Chisholm - 1947 - Journal of Symbolic Logic 12 (4):138.
  30. added 2019-06-05
    Quantified Temporal Alethic-Deontic Logic.Daniel Rönnedal - 2014 - Logic and Logical Philosophy 24 (1):19-59.
    The purpose of this paper is to describe a set of quantified temporal alethic-deontic systems, i.e., systems that combine temporal alethicdeontic logic with predicate logic. We consider three basic kinds of systems: constant, variable and constant and variable domain systems. These systems can be augmented by either necessary or contingent identity, and every system that includes identity can be combined with descriptors. All logics are described both semantically and proof theoretically. We use a kind of possible world semantics, inspired by (...)
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  31. added 2019-06-03
    Lennart Âqvist. A New Approach to the Logical Theory of Interrogatives. Part I. Analysis. Filosofiska Föreningen I Uppsala, Uppsala1965, Iv + 174 Pp. [REVIEW]David Harrah - 1967 - Journal of Symbolic Logic 32 (3):403-404.
  32. added 2019-06-03
    Hector-Neri Castaneda. A Note on S5. The Journal of Symbolic Logic, Vol. 29 No. 4 , Pp. 191–192.Atwell R. Turquette - 1966 - Journal of Symbolic Logic 31 (2):275-275.
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  33. added 2019-05-28
    Nicholas J. Moutafakis. Imperatives and Their Logics. Sterling Publishers Pvt Ltd, New Delhi and Jullundur City, India, 1975, Xv + 216 Pp. [REVIEW]Brian F. Chellas - 1980 - Journal of Symbolic Logic 45 (2):375-376.
  34. added 2019-05-16
    All or Nothing, but If Not All, Next Best or Nothing.Theron Pummer - 2019 - Journal of Philosophy 116 (5):278-291.
    Suppose two children face a deadly threat. You can either do nothing, save one child by sacrificing your arms, or save both by sacrificing your arms. Here are two plausible claims: first, it is permissible to do nothing; second, it is wrong to save only one. Joe Horton argues that the combination of these two claims has the implausible implication that if you are not going to save both children, you ought to save neither. This is one instance of what (...)
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  35. added 2019-05-13
    E. E. Dawson. A Model for Deontic Logic. Analysis , Vol. 19 No. 4 , Pp. 73–78. - Lennart Åqvist. On Dawson-Models for Deontic Logic. Logique Et Analyse, N.S. Vol. 7 , Pp. 14–21. [REVIEW]P. T. Geach - 1958 - Journal of Symbolic Logic 31 (4):666-666.
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  36. added 2019-03-08
    Stenius' Approach to Disjunctive Permission.David Makinson - 1984 - Theoria 50 (2-3):138-147.
    A critical review of Stenius' account of the logic of disjunctive permissions, leading to a proposal for a closely related approach in terms of "checklist conditionals".
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  37. added 2019-03-07
    Lennart Åqvist. Deontic Logic. Handbook of Philosophical Logic, Volume II, Extensions of Classical Logic, Edited by D. Gabbay and F. Guenthner, Synthese Library, Vol. 165, D. Reidel Publishing Company, Dordrecht, Boston, and Lancaster, 1984, Pp. 605–714. [REVIEW]David Makinson - 1989 - Journal of Symbolic Logic 54 (4):1481-1483.
    Review of the book mentioned in the title.
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  38. added 2019-02-15
    The Free Choice Permission as a Default Rule.Daniela Glavaničová - 2018 - Organon F: Medzinárodný Časopis Pre Analytickú Filozofiu 25 (4):495-516.
    It is quite plausible to say that you may read or write implies that you may read and you may write (though possibly not both at once). This so-called free choice principle is well-known in deontic logic. Sadly, despite being so intuitive and seemingly innocent, this principle causes a lot of worries. The paper briefly but critically examines leading accounts of free choice permission present in the literature. Subsequently, the paper suggests to accept the free choice principle, but only as (...)
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  39. added 2019-01-13
    The irreducibility of collective obligations.Allard Tamminga & Frank Hindriks - 2020 - Philosophical Studies 177 (4):1085-1109.
    Individualists claim that collective obligations are reducible to the individual obligations of the collective’s members. Collectivists deny this. We set out to discover who is right by way of a deontic logic of collective action that models collective actions, abilities, obligations, and their interrelations. On the basis of our formal analysis, we argue that when assessing the obligations of an individual agent, we need to distinguish individual obligations from member obligations. If a collective has a collective obligation to bring about (...)
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  40. added 2018-11-27
    Anderson’s Restriction of Deontic Modalities to Contingent Propositions.Matteo Pascucci - 2017 - Theoria 83 (4):440-470.
    The deontic status of tautologies and contradictions is one of the major puzzles for authors of early works on deontic logic. It is well-known that von Wright addresses this problem by adopting a Principle of Deontic Contingency, which says that tautologies are not necessarily obligatory and contradictions are not necessarily forbidden. A more radical solution is proposed by Anderson within a reductionist approach to deontic logic and consists in restricting the range of application of deontic modalities to contingent propositions. Anderson’s (...)
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  41. added 2018-07-20
    Ambivalence: A Philosophical Exploration.Hili Razinsky - 2016 - Rowman & Littlefield International.
    Ambivalence (as in practical conflicts, moral dilemmas, conflicting beliefs, and mixed feelings) is a central phenomenon of human life. Yet ambivalence is incompatible with entrenched philosophical conceptions of personhood, judgement, and action, and is denied or marginalised by thinkers of diverse concerns. This book takes a radical new stance, bringing the study of core philosophical issues together with that of ambivalence. The book proposes new accounts in several areas – including subjectivity, consciousness, rationality, and value – while elucidating a wide (...)
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  42. added 2018-07-02
    Enriching Deontic Logic.Ilaria Canavotto & Alessandro Giordani - 2018 - Journal of Logic and Computation 1:1-23.
    It is well known that systems of action deontic logic emerging from a standard analysis of permission in terms of possibility of doing an action without incurring in a violation of the law are subject to paradoxes. In general, paradoxes are acknowledged as such if we have intuitions telling us that things should be different. The aim of this paper is to introduce a paradox-free deontic action system by (i) identifying the basic intuitions leading to the emergence of the paradoxes (...)
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  43. added 2018-05-17
    Defusing the Miners Paradox.Michael J. Shaffer - 2018 - Filosofiska Notiser 5:57-67.
    This paper presents a case for the claim that the infamous miners paradox is not a paradox. This contention is based on some important observations about the nature of ignorance with respect to both disjunctions and conditional obligations and their modal features. The gist of the argument is that given the uncertainty about the location of the miners in the story and the nature of obligations, the apparent obligation to block either mine shaft is cancelled.
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  44. added 2018-03-20
    Default Logic and Hafta.Anthony Gillies - manuscript
    This is a note from an AMC session on Jeff Horty's (2012) book *Reasons as Defaults*.
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  45. added 2017-10-28
    On An Error In Grove's Proof.Koji Tanaka & Graham Priest - 1997 - Logique Et Analyse 158:215-217.
    Nearly a decade has past since Grove gave a semantics for the AGM postulates. The semantics, called sphere semantics, provided a new perspective of the area of study, and has been widely used in the context of theory or belief change. However, the soundness proof that Grove gives in his paper contains an error. In this note, we will point this out and give two ways of repairing it.
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  46. added 2017-08-29
    A Spurious Paradox.Danny Frederick - manuscript
    Niko Kolodny and John MacFarlane claim that a situation involving some trapped miners involves a deontic paradox the resolution of which requires rejecting the logical law of modus ponens. I show that the appearance of paradox results from confusion and that the miners case supplies no cogent reason for impugning modus ponens.
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  47. added 2017-05-25
    An Exact Truthmaker Semantics for Permission and Obligation.Albert J. J. Anglberger, Johannes Korbmacher & Federico L. G. Faroldi - 2016 - In Olivier Roy, Allard Tamminga & Malte Willer (eds.), Deontic Logic and Normative Systems. College Publications. pp. 16-31.
    We develop an exact truthmaker semantics for permission and obligation. The idea is that with every singular act, we associate a sphere of permissions and a sphere of requirements: the acts that are rendered permissible and the acts that are rendered required by the act. We propose the following clauses for permissions and obligations: -/- - a singular act is an exact truthmaker of Pφ iff every exact truthmaker of φ is in the sphere of permissibility of the act, and (...)
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  48. added 2017-04-09
    Imperative Change and Obligation to Do.Berislav Žarnić - 2003 - In Krister Segerberg & Rysiek Sliwinski (eds.), Logic, Law, Morality: Thirteen Essays in Practical Philosophy in Honour of Lennart Åqvist. Uppsala: Department of Philosophy, Uppsala University. pp. 79-95.
    The ambition of the paper is to provide a solution to the problem posed by Von Wright (1999): how is it possible that the two actions, one of producing P and the other of preventing P can have different deontic status, the former being obligatory and the latter being forbidden. The solution for the problem is sought for by an investigation into connections between imperative and deontic logic. First, it is asked whether a solution could be found in Lemmon's (1965) (...)
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  49. added 2017-03-07
    Requirements.John Broome - 2007 - Hommage À Wlodek; 60 Philosophical Papers Dedicated to Wlodek Rabinowicz.
    The object of this paper is to explore the intersection of two issues – both of them of considerable interest in their own right. The first concerns the role that feasibility considerations play in constraining normative claims – claims, say, about what we (individually and collectively) ought to do and to be. This issue has particular relevance for the confrontation of moral philosophy with economics (and social science more generally). The second issue concerns whether normative claims are to be understood (...)
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  50. added 2017-02-16
    The Logic of Preference: An Essay.Donald Davidson - 1966 - Philosophical Review 75 (2):233-235.
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