33 found
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  1.  72
    Engineering and the Problem of Moral Overload.Jeroen Van den Hoven, Gert-Jan Lokhorst & Ibo Van de Poel - 2012 - Science and Engineering Ethics 18 (1):143-155.
    When thinking about ethics, technology is often only mentioned as the source of our problems, not as a potential solution to our moral dilemmas. When thinking about technology, ethics is often only mentioned as a constraint on developments, not as a source and spring of innovation. In this paper, we argue that ethics can be the source of technological development rather than just a constraint and technological progress can create moral progress rather than just moral problems. We show this by (...)
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  2.  31
    Martin Peterson: The Ethics of Technology: A Geometric Analysis of Five Moral Principles: Oxford University Press, 2017, 252 pp, USD 74.00 , ISBN: 9780190652265.Gert-Jan C. Lokhorst - 2018 - Science and Engineering Ethics 24 (5):1641-1643.
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  3.  40
    Deontic logic and computer-supported computer ethics.Jeroen Van Den Hoven & Gert-Jan Lokhorst - 2002 - In James Moor & Terrell Ward Bynum (eds.), Cyberphilosophy: The Intersection of Philosophy and Computing. Blackwell. pp. 376-386.
  4.  9
    Deontic Logic and Computer‐Supported Computer Ethics.Jeroen Van Den Hoven & Gert-Jan Lokhorst - 2002 - Metaphilosophy 33 (3):376-386.
    We provide a description and informal analysis of the commonalities in moral discourse concerning issues in the field of information and communications technology, present a logic model (DEAL) of this type of moral discourse that makes use of recent research in deontic, epistemic, and action logic, and indicate – drawing upon recent research in computer implementations of modal logic – how information systems may be developed that implement the proposed formalization.
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  5.  29
    Mally’s deontic logic.Gert-Jan Lokhorst - 2004 - Grazer Philosophische Studien.
    In 1926, Mally presented the first formal system of deontic logic. His system had several consequences which Mally regarded as surprising but defensible. It also, however, has the consequence that A is obligatory if and only if A is the case, which is unacceptable from the point of view of any reasonable deontic logic. We describe Mally's system and discuss how it might reasonably be repaired.
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  6. Andersonian Deontic Logic, Propositional Quantification, and Mally.Gert-Jan C. Lokhorst - 2006 - Notre Dame Journal of Formal Logic 47 (3):385-395.
    We present a new axiomatization of the deontic fragment of Anderson's relevant deontic logic, give an Andersonian reduction of a relevant version of Mally's deontic logic previously discussed in this journal, study the effect of adding propositional quantification to Anderson's system, and discuss the meaning of Anderson's propositional constant in a wide range of Andersonian deontic systems.
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  7. Computational Meta-Ethics: Towards the Meta-Ethical Robot.Gert-Jan C. Lokhorst - 2011 - Minds and Machines 21 (2):261-274.
    It has been argued that ethically correct robots should be able to reason about right and wrong. In order to do so, they must have a set of do’s and don’ts at their disposal. However, such a list may be inconsistent, incomplete or otherwise unsatisfactory, depending on the reasoning principles that one employs. For this reason, it might be desirable if robots were to some extent able to reason about their own reasoning—in other words, if they had some meta-ethical capacities. (...)
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  8.  39
    Reasoning about Actions and Obligations in First-Order Logic.Gert-Jan C. Lokhorst - 1996 - Studia Logica 57 (1):221 - 237.
    We describe a new way in which theories about the deontic status of actions can be represented in terms of the standard two-sorted extensional predicate calculus. Some of the resulting formal theories are easy to implement in Prolog; one prototype implementation--R. M. Lee's deontic expert shell DX--is briefly described.
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  9.  46
    An Intuitionistic Reformulation of Mally’s Deontic Logic.Gert-Jan C. Lokhorst - 2013 - Journal of Philosophical Logic 42 (4):635-641.
    In 1926, Ernst Mally proposed a number of deontic postulates. He added them as axioms to classical propositional logic. The resulting system was unsatisfactory because it had the consequence that A is the case if and only if it is obligatory that A. We present an intuitionistic reformulation of Mally’s deontic logic. We show that this system does not provide the just-mentioned objectionable theorem while most of the theorems that Mally considered acceptable are still derivable. The resulting system is unacceptable (...)
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  10.  35
    Mally's deontic logic.G.-J. C. Lokhorst & L. Goble - 2004 - Grazer Philosophische Studien 67 (1):37-57.
    In 1926, Mally presented the first formal system of deontic logic. His system had several consequences which Mally regarded as surprising but defensible. It also, however, has the consequence that A is obligatory if and only if A is the case, which is unacceptable from the point of view of any reasonable deontic logic. We describe Mally's system and discuss how it might reasonably be repaired.
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  11.  12
    Mally’s deontic logic.Gert-Jan C. Lokhorst & Lou Goble - 2004 - Grazer Philosophische Studien 67 (1):37-57.
    In 1926, Mally presented the first formal system of deontic logic. His system had several consequences which Mally regarded as surprising but defensible. It also, however, has the consequence that A is obligatory if and only if A is the case, which is unacceptable from the point of view of any reasonable deontic logic. We describe Mally's system and discuss how it might reasonably be repaired.
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  12. Maarten Doormans kwantitatieve argumenten voor vooruitgang in de kunst.Gert-Jan C. Lokhorst - unknown
    Basisbegrippen. Een formeel model voor de ontwikkeling van de kunst is een structuur T, <, K, , d, p, q, s, B , waarbij T een verzameling van “tijdstippen” is, < (“is eerder dan”) een relatie op T is, K een verzameling van “mogelijke kunstwerken” is, (“levert commentaar op”) een relatie op K is, d, p, q en s functies van K naar de verzameling van alle deelverzamelingen van K zijn, en B een functie van T naar de verzameling van (...)
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  13. INTERview.Gert-Jan Lokhorst - unknown
    prevailing view, holding that the contents of our thoughts are mainly the result of external factors. The corollary is that we will never really be able to read a person’s mind.
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  14. De mens AlS computer.Gert-Jan Lokhorst - unknown
    De mens is in de afgelopen drie eeuwen vaak vergeleken met allerlei soorten machines. In de achttiende eeuw was de klokmetafoor tamelijk populair; psychologische termen als ‘drijfveer’, ‘van slag raken’ en ‘opgewonden zijn’ herinneren hier nog aan [Vroon and Draaisma, 1985]. In de negentiende eeuw overheerste de stoommachine-metafoor. De psychologie van Freud wordt wel als een uitgewerkte versie van deze metafoor beschouwd [Russelmann, 1983]. Ook uitdrukkingen als ‘uitlaatkleppen’, ‘stoom afblazen’ en ‘iemand opstoken’ zijn eraan te danken. De stoommachine-metafoor wordt nog (...)
     
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  15. Ernst Mally's Deontik (1926).Gert-Jan C. Lokhorst - 1999 - Notre Dame Journal of Formal Logic 40 (2):273-282.
    In 1926, Mally proposed the first formal deontic system. As Mally and others soon realized, this system had some rather strange consequences. We show that the strangeness of Mally's system is not so much due to Mally's informal deontic principles as to the fact that he formalized those principles in terms of the propositional calculus. If they are formalized in terms of relevant logic rather than classical logic, one obtains a system which is related to Anderson's relevant deontic logic and (...)
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  16.  23
    Ontology, Semantics and Philosophy of Mind in Wittgenstein's "Tractatus": A Formal Reconstruction.Gert-Jan Lokhorst - 1988 - Erkenntnis 29 (1):35 - 75.
    The paper presents a formal explication of the early Wittgenstein's views on ontology, the syntax and semantics of an ideal logical language, and the propositional attitudes. It will be shown that Wittgenstein gave a "language of thought" analysis of propositional attitude ascriptions, and that his ontological views imply that such ascriptions are truth-functions of (and supervenient upon) elementary sentences. Finally, an axiomatization of a quantified doxastic modal logic corresponding to Tractarian semantics will be given.
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  17.  46
    Reasoning about actions and obligations in first-order logic.Gert -Jan C. Lokhorst - 1996 - Studia Logica 57 (1):221 - 237.
    We describe a new way in which theories about the deontic status of actions can be represented in terms of the standard two-sorted first-order extensional predicate calculus. Some of the resulting formal theories are easy to implement in Prolog; one prototype implementation—R. M. Lee's deontic expert shell DX—is briefly described.
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  18. Geach's deontic quantifier.Gert-Jan C. Lokhorst - 1999 - Philosophia 27 (1-2):247-251.
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  19.  14
    The modal status of antinomies.Gert-Jan C. Lokhorst - 1987 - Notre Dame Journal of Formal Logic 29 (1):102-105.
  20.  31
    Wittgenstein on the Structure of the Soul: a New Interpretation of Tractatus 5.5421.Gert-Jan C. Lokhorst - 1991 - Philosophical Investigations 14 (4):324-341.
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  21.  16
    An alternative intuitionistic version of Mally's deontic logic.G. J. C. Lokhorst - 2016 - Reports on Mathematical Logic 51:35-41.
    Some years ago, Lokhorst proposed an intuitionistic reformulation of Mally's deontic logic. This reformulation was unsatisfactory, because it provided a striking theorem that Mally himself did not mention. In this paper, we present an alternative reformulation of Mally's deontic logic that does not provide this theorem.
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  22.  24
    Anderson's Relevant Deontic and Eubouliatic Systems.Gert-Jan C. Lokhorst - 2008 - Notre Dame Journal of Formal Logic 49 (1):65-73.
    We present axiomatizations of the deontic fragment of Anderson's relevant deontic logic (the logic of obligation and related concepts) and the eubouliatic fragment of Anderson's eubouliatic logic (the logic of prudence, safety, risk, and related concepts).
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  23. Brein en bewustzijn. De geest-lichaam theorieën van moderne hersenonderzoekers.G. Lokhorst - 1988 - Tijdschrift Voor Filosofie 50 (3):569-569.
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  24. Counting the Minds of Split-Brain Patients.Gert-Jan C. Lokhorst - 1996 - Logique Et Analyse 39 (155-6):315-324.
  25.  35
    Hemisphere differences before 1800.Gert-Jan C. Lokhorst - 1985 - Behavioral and Brain Sciences 8 (4):642-642.
  26.  27
    Mally’s Deontic Logic: Reducibility and Semantics.Gert-Jan C. Lokhorst - 2015 - Journal of Philosophical Logic 44 (3):309-319.
    We discuss three aspects of the intuitionistic reformulation of Mally’s deontic logic that was recently proposed ). First, this reformulation is more similar to Standard Deontic Logic than appears at first sight: like Standard Deontic Logic, it is Kanger reducible and Anderson reducible to alethic logic and it has a semantical interpretation that can be read in deontic terms. Second, this reformulation has an extension that provides 100% of the theorems stated by Mally himself. Third, it is interesting to view (...)
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  27. Vereniging voor analytische filosofie.Gert-jan Lokhorst - 2006 - Algemeen Nederlands Tijdschrift voor Wijsbegeerte 4.
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  28. “The Neuroscience of Responsibility”—Workshop Report.Nicole A. Vincent, Pim Haselager & Gert-Jan Lokhorst - 2010 - Neuroethics 4 (2):175-178.
    This is a report on the 3-day workshop “The Neuroscience of Responsibility” that was held in the Philosophy Department at Delft University of Technology in The Netherlands during February 11th–13th, 2010. The workshop had 25 participants from The Netherlands, Germany, Italy, UK, USA, Canada and Australia, with expertise in philosophy, neuroscience, psychology, psychiatry and law. Its aim was to identify current trends in neurolaw research related specifically to the topic of responsibility, and to foster international collaborative research on this topic. (...)
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  29.  36
    Privacy, deontic epistemic action logic and software agents.V. Wiegel, M. J. Van den Hoven & G. J. C. Lokhorst - 2005 - Ethics and Information Technology 7 (4):251-264.
    In this paper we present an executable approach to model interactions between agents that involve sensitive, privacy-related information. The approach is formal and based on deontic, epistemic and action logic. It is conceptually related to the Belief-Desire-Intention model of Bratman. Our approach uses the concept of sphere as developed by Waltzer to capture the notion that information is provided mostly with restrictions regarding its application. We use software agent technology to create an executable approach. Our agents hold beliefs about the (...)
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  30.  12
    Privacy, Deontic Epistemic Action Logic and Software Agents: An Executable Approach to Modeling Moral Constraints in Complex Informational Relationships.V. Wiegel, M. Hoven & G. Lokhorst - 2005 - Ethics and Information Technology 7 (4):251-264.
    In this paper we present an executable approach to model interactions between agents that involve sensitive, privacy-related information. The approach is formal and based on deontic, epistemic and action logic. It is conceptually related to the Belief-Desire-Intention model of Bratman. Our approach uses the concept of sphere as developed by Waltzer to capture the notion that information is provided mostly with restrictions regarding its application. We use software agent technology to create an executable approach. Our agents hold beliefs about the (...)
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  31. Ontology, semantics and philosophy of mind in Wittgenstein's tractatus: A formal reconstruction. [REVIEW]Gert Jan Lokhorst - 1988 - Erkenntnis 29 (1):35 - 75.
    The paper presents a formal explication of the early Wittgenstein's views on ontology, the syntax and semantics of an ideal logical language, and the propositional attitudes. It will be shown that Wittgenstein gave a language of thought analysis of propositional attitude ascriptions, and that his ontological views imply that such ascriptions are truth-functions of (and supervenient upon) elementary sentences. Finally, an axiomatization of a quantified doxastic modal logic corresponding to Tractarian semantics will be given.
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  32.  38
    Erratum to: Computational Meta-Ethics: Towards the Meta-Ethical Robot. [REVIEW]Gert-Jan C. Lokhorst - 2011 - Minds and Machines 21 (3):475-475.
  33. The digital phoenix: How computers are changing philosophy. Terrell ward Bynum and James H. Moor, editor. [REVIEW]Gert-Jan C. Lokhorst - 1999 - Ethics and Information Technology 1 (1):67-71.
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