Results for 'LP'

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  1. LP, K3, and FDE as Substructural Logics.Lionel Shapiro - 2017 - In Arazim Pavel & Lávička Tomáš (eds.), The Logica Yearbook 2016. College Publications.
    Building on recent work, I present sequent systems for the non-classical logics LP, K3, and FDE with two main virtues. First, derivations closely resemble those in standard Gentzen-style systems. Second, the systems can be obtained by reformulating a classical system using nonstandard sequent structure and simply removing certain structural rules (relatives of exchange and contraction). I clarify two senses in which these logics count as “substructural.”.
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  2. Classicality Lost: K3 and LP after the Fall.Matthias Jenny - 2016 - Thought: A Journal of Philosophy 6 (1):43-53.
    It is commonly held that the ascription of truth to a sentence is intersubstitutable with that very sentence. However, the simplest subclassical logics available to proponents of this view, namely K3 and LP, are hopelessly weak for many purposes. In this article, I argue that this is much more of a problem for proponents of LP than for proponents of K3. The strategies for recapturing classicality offered by proponents of LP are far less promising than those available to proponents of (...)
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  3. Relevant first-order logic LP# and Curry’s paradox resolution.Jaykov Foukzon - 2015 - Pure and Applied Mathematics Journal Volume 4, Issue 1-1, January 2015 DOI: 10.11648/J.Pamj.S.2015040101.12.
    In 1942 Haskell B. Curry presented what is now called Curry's paradox which can be found in a logic independently of its stand on negation. In recent years there has been a revitalised interest in non-classical solutions to the semantic paradoxes. In this article the non-classical resolution of Curry’s Paradox and Shaw-Kwei' sparadox without rejection any contraction postulate is proposed. In additional relevant paraconsistent logic C ̌_n^#,1≤n<ω, in fact,provide an effective way of circumventing triviality of da Costa’s paraconsistent Set Theories〖NF〗n^C.
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    Tractable depth-bounded approximations to FDE and its satellites.A. Solares-Rojas & Marcello D'Agostino - 2023 - Journal of Logic and Computation 34 (5):815-855.
    FDE, LP and K3 are closely related to each other and admit of an intuitive informational interpretation. However, all these logics are co-NP complete, and so idealized models of how an agent can think. We address this issue by shifting to signed formulae, where the signs express imprecise values associated with two bipartitions of the corresponding set of standard values. We present proof systems whose operational rules are all linear and have only two structural branching rules that express a generalized (...)
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  5. A Utility Based Evaluation of Logico-probabilistic Systems.Paul D. Thorn & Gerhard Schurz - 2014 - Studia Logica 102 (4):867-890.
    Systems of logico-probabilistic (LP) reasoning characterize inference from conditional assertions interpreted as expressing high conditional probabilities. In the present article, we investigate four prominent LP systems (namely, systems O, P, Z, and QC) by means of computer simulations. The results reported here extend our previous work in this area, and evaluate the four systems in terms of the expected utility of the dispositions to act that derive from the conclusions that the systems license. In addition to conforming to the dominant (...)
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  6. What is a Paraconsistent Logic?Damian Szmuc, Federico Pailos & Eduardo Barrio - 2018 - In Walter Carnielli & Jacek Malinowski (eds.), Contradictions, from Consistency to Inconsistency. Cham, Switzerland: Springer.
    Paraconsistent logics are logical systems that reject the classical principle, usually dubbed Explosion, that a contradiction implies everything. However, the received view about paraconsistency focuses only the inferential version of Explosion, which is concerned with formulae, thereby overlooking other possible accounts. In this paper, we propose to focus, additionally, on a meta-inferential version of Explosion, i.e. which is concerned with inferences or sequents. In doing so, we will offer a new characterization of paraconsistency by means of which a logic is (...)
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  7. (I can’t get no) antisatisfaction.Pablo Cobreros, Elio La Rosa & Luca Tranchini - 2020 - Synthese 198 (9):8251-8265.
    Substructural approaches to paradoxes have attracted much attention from the philosophical community in the last decade. In this paper we focus on two substructural logics, named ST and TS, along with two structural cousins, LP and K3. It is well known that LP and K3 are duals in the sense that an inference is valid in one logic just in case the contrapositive is valid in the other logic. As a consequence of this duality, theories based on either logic are (...)
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  8. Instinct.Michael Walschots - 2021 - In Julian Wuerth (ed.), The Cambridge Kant Lexicon. New York, NY, USA: Cambridge University Press. pp. 249-250.
    Instinct (Instinkt). Kant’s clearest definition of instinct comes from the 1797 Anthropology from a Pragmatic Point of View, where he claims “the inner necessitation of the faculty of desire to take possession of this object before one even knows it, is instinct” (A, 7:265/CEAHE:367; and see also Rel, 6:29n [1793]/CERRT:77; CBHH, 8:111 [1786]/CEAHE:164; LP, 9:441 [1803]/CEAHE:437; and AB, 25:1518 [1788-9]).
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  9. Semantic Information Measure with Two Types of Probability for Falsification and Confirmation.Lu Chenguang - manuscript
    Logical Probability (LP) is strictly distinguished from Statistical Probability (SP). To measure semantic information or confirm hypotheses, we need to use sampling distribution (conditional SP function) to test or confirm fuzzy truth function (conditional LP function). The Semantic Information Measure (SIM) proposed is compatible with Shannon’s information theory and Fisher’s likelihood method. It can ensure that the less the LP of a predicate is and the larger the true value of the proposition is, the more information there is. So the (...)
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  10. The Logical Burdens of Proof. Assertion and Hypothesis.Daniele Chiffi & Fabien Schang - 2017 - Logic and Logical Philosophy 26 (4):1-22.
    The paper proposes two logical analyses of (the norms of) justification. In a first, realist-minded case, truth is logically independent from justification and leads to a pragmatic logic LP including two epistemic and pragmatic operators, namely, assertion and hypothesis. In a second, antirealist-minded case, truth is not logically independent from justification and results in two logical systems of information and justification: AR4 and AR4¢, respectively, provided with a question-answer semantics. The latter proposes many more epistemic agents, each corresponding to a (...)
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  11. Unjustified untrue "beliefs": AI hallucinations and justification logics.Kristina Šekrst - forthcoming - In Kordula Świętorzecka, Filip Grgić & Anna Brozek (eds.), Logic, Knowledge, and Tradition. Essays in Honor of Srecko Kovac.
    In artificial intelligence (AI), responses generated by machine-learning models (most often large language models) may be unfactual information presented as a fact. For example, a chatbot might state that the Mona Lisa was painted in 1815. Such phenomenon is called AI hallucinations, seeking inspiration from human psychology, with a great difference of AI ones being connected to unjustified beliefs (that is, AI “beliefs”) rather than perceptual failures). -/- AI hallucinations may have their source in the data itself, that is, the (...)
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  12. Paraconsistencia y fundamentación de las matemáticas.Christian Romero-Rodríguez - 2016 - In Olga Lucía Gómez & Jairo Isaac Racines (eds.), En los limites de la ciencia y la filosofía. Cali: Universidad del Valle. pp. 265-279.
    En "Paraconsistencia y fundamentación de las matemáticas" se reformula un aspecto del programa formalista de Hilbert, problema clásico dentro del panorama de la filosofía de las matemáticas. Lo anterior se hace desde un enfoque no clásico de la lógica, particularmente desde LP de Priest. Finalizando el articulo se rescatan las virtudes de la reformulación de este problema clásico y se evalúa hasta qué punto puede ser posible hablar del programa formalista desde la luz de la aritmética inconsistente de Priest.
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  13. Minimally Nonstandard K3 and FDE.Rea Golan & Ulf Hlobil - 2022 - Australasian Journal of Logic 19 (5):182-213.
    Graham Priest has formulated the minimally inconsistent logic of paradox (MiLP), which is paraconsistent like Priest’s logic of paradox (LP), while staying closer to classical logic. We present logics that stand to (the propositional fragments of) strong Kleene logic (K3) and the logic of first-degree entailment (FDE) as MiLP stands to LP. That is, our logics share the paracomplete and the paraconsistent-cum-paracomplete nature of K3 and FDE, respectively, while keeping these features to a minimum in order to stay closer to (...)
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  14. Normality Operators and Classical Collapse.Roberto Ciuni & Massimiliano Carrara - 2018 - In Pavel Arazim & Tomas Lavicka (eds.), The Logica Yearbook 2017. College Publications. pp. 2-20.
    In this paper, we extend the expressive power of the logics K3, LP and FDE with anormality operator, which is able to express whether a for-mula is assigned a classical truth value or not. We then establish classical recapture theorems for the resulting logics. Finally, we compare the approach via normality operator with the classical collapse approach devisedby Jc Beall.
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  15. Normality operators and Classical Recapture in Extensions of Kleene Logics.Ciuni Roberto & Massimiliano Carrara - forthcoming - Logic Journal of the IGPL.
    In this paper, we approach the problem of classical recapture for LP and K3 by using normality operators. These generalize the consistency and determinedness operators from Logics of Formal Inconsistency and Underterminedness, by expressing, in any many-valued logic, that a given formula has a classical truth value (0 or 1). In particular, in the rst part of the paper we introduce the logics LPe and Ke3 , which extends LP and K3 with normality operators, and we establish a classical recapture (...)
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  16. “The Taste Approach”. Governance beyond Libertarian paternalism.Tor Otterholt - 2010 - Revue de Philosophie Économique 1 (1):57-80.
    Well-being can be promoted in two ways. Firstly, by affecting the quantity, quality and allocation of bundles of consumption (the Resource Approach), and secondly, by influencing how people benefit from their goods (the Taste Approach). Whereas the former is considered an ingredient of economic analysis, the latter has conventionally not been included in that field. By identifying the gain the Taste Approach might yield, the article questions whether this asymmetry is justified. If successfully exercised, the Taste Approach might not only (...)
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  17. A Solução Paraconsistente ao Paradoxo do Mentiroso.R. Ongaratto - 2023 - Alamedas 11 (2):75-88.
    The article makes an analysis of a paraconsistent solution to the liar paradox, namely, Priest’s solution. Paraconsistent logics are characterized, in opposition to classical logic, as rejecting the Principle of Explosion, which says that “from a contradiction everything follows”. Priest, in turn, is a dialetheist, an interpretation of paraconsistency that admits the truth of contradictions. His answer to the liar paradox, therefore, accepts the liar sentence as being a truly paradoxical sentence using LP, the “Logic of Paradox. Then, we propose (...)
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  18. Moral/conventional transgression distinction and psychopathy in conduct disordered adolescent offenders.Mairead C. Dolan & Rachael S. Fullam - 2010 - Personality and Individual Differences 49:995–1000.
    To date there are no studies examining the ability to make a moral/conventional transgression distinction in adolescent offenders with psychopathic traits. Based on the Psychopathy Checklist: Youth Version, we compared males with high (HP, n = 45), medium (MP, n = 31) and low psychopathy scores (LP, n = 39) on the moral convention distinction task. Under normal rule conditions the psychopathy groups did not differ in their ability to make a moral/conventional distinction. The HP group tended to view both (...)
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  19. Peer Norms and Depression.Hang K. Nguyen, Trang T. Le, My Nguyen & Kien Le - 2012 - Bản Chưa Hoàn Chỉnh.
    Dеspitе thе prеvаlеncе оf cоmmоn mеntаl hеаlth prоblеms, cоllеgе studеnts sееk prоfеssiоnаl аssistаncе аt а lоw rаtе. Pеrcеptiоns оf sоciеtаl stаndаrds аrоund аid sееking cоuld bе оnе оf thе fаctоrs influеncing hеlp sееking prоclivity. Thе currеnt study lооkеd аt pеrcеivеd pееr nоrms fоr sееking hеlp fоr dеprеssеd symptоms аnd thеir rеlаtiоnship tо оnе's оwn hеlp sееking prоclivity in urbаn cоllеgе yоuth. Thе mеthоds utilizеd wеrе а crоss-sеctiоnаl survеy аpprоаch. Thе mоst likеly sоurcе оf gеtting suppоrt fоr dеprеssiоn symptоms wаs friеnds. (...)
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  20. DLEAC and the Rejection Paradox.Massimiliano Carrara & Andrea Strollo - 2021 - Journal of Applied Logics 8 (2):377-396.
    In this paper we first develop a Dialetheic Logic with Exclusive Assumptions and Conclusions, DLEAC. We adopt the semantics of the logic of paradox (LP) extended with a notion of model suitable for DLEAC, and we modify its proof theory by refining the notions of assumption and conclusion, which are understood as speech acts. We introduce a new paradox – the rejectability paradox – first informally, then formally. We then provide its derivation in an extension of DLEAC contanining the rejectability (...)
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  21. Paraconsistent First-Order Logic with infinite hierarchy levels of contradiction.Jaykov Foukzon - manuscript
    In this paper paraconsistent first-order logic LP^{#} with infinite hierarchy levels of contradiction is proposed. Corresponding paraconsistent set theory KSth^{#} is discussed.Axiomatical system HST^{#}as paraconsistent generalization of Hrbacek set theory HST is considered.
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  22.  50
    Tractable depth-bounded approximations to some propositional logics. Towards more realistic models of logical agents.A. Solares-Rojas - 2022 - Dissertation, University of Milan
    The depth-bounded approach seeks to provide realistic models of reasoners. Recognizing that most useful logics are idealizations in that they are either undecidable or likely to be intractable, the approach accounts for how they can be approximated in practice by resource-bounded agents. The approach has been applied to Classical Propositional Logic (CPL), yielding a hierarchy of tractable depth-bounded approximations to that logic, which in turn has been based on a KE/KI system. -/- This Thesis shows that the approach can be (...)
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  23. The Health Impacts of Peer Norms.Hang K. Nguyen, Trang T. Le, My Nguyen & Kien Le - 2016 - Bản Chưa Hoàn Chỉnh.
    Dеspitе thе prеvаlеncе оf cоmmоn mеntаl hеаlth prоblеms, cоllеgе studеnts sееk prоfеssiоnаl аssistаncе аt а lоw rаtе. Pеrcеptiоns оf sоciеtаl stаndаrds аrоund аid sееking cоuld bе оnе оf thе fаctоrs influеncing hеlp sееking prоclivity. Thе currеnt study lооkеd аt pеrcеivеd pееr nоrms fоr sееking hеlp fоr dеprеssеd symptоms аnd thеir rеlаtiоnship tо оnе's оwn hеlp sееking prоclivity in urbаn cоllеgе yоuth. Thе mеthоds utilizеd wеrе а crоss-sеctiоnаl survеy аpprоаch. Thе mоst likеly sоurcе оf gеtting suppоrt fоr dеprеssiоn symptоms wаs friеnds. (...)
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  24. The Psychological Effects of Peer Norms.Hang K. Nguyen, Trang T. Le, My Nguyen & Kien Le - 2018 - Bản Chưa Hoàn Chỉnh.
    Dеspitе thе prеvаlеncе оf cоmmоn mеntаl hеаlth prоblеms, cоllеgе studеnts sееk prоfеssiоnаl аssistаncе аt а lоw rаtе. Pеrcеptiоns оf sоciеtаl stаndаrds аrоund аid sееking cоuld bе оnе оf thе fаctоrs influеncing hеlp sееking prоclivity. Thе currеnt study lооkеd аt pеrcеivеd pееr nоrms fоr sееking hеlp fоr dеprеssеd symptоms аnd thеir rеlаtiоnship tо оnе's оwn hеlp sееking prоclivity in urbаn cоllеgе yоuth. Thе mеthоds utilizеd wеrе а crоss-sеctiоnаl survеy аpprоаch. Thе mоst likеly sоurcе оf gеtting suppоrt fоr dеprеssiоn symptоms wаs friеnds. (...)
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  25. Depression in the Classroom.Hang K. Nguyen, Trang T. Le, My Nguyen & Kien Le - 2010 - Review.
    Dеspitе thе prеvаlеncе оf cоmmоn mеntаl hеаlth prоblеms, cоllеgе studеnts sееk prоfеssiоnаl аssistаncе аt а lоw rаtе. Pеrcеptiоns оf sоciеtаl stаndаrds аrоund аid sееking cоuld bе оnе оf thе fаctоrs influеncing hеlp sееking prоclivity. Thе currеnt study lооkеd аt pеrcеivеd pееr nоrms fоr sееking hеlp fоr dеprеssеd symptоms аnd thеir rеlаtiоnship tо оnе's оwn hеlp sееking prоclivity in urbаn cоllеgе yоuth. Thе mеthоds utilizеd wеrе а crоss-sеctiоnаl survеy аpprоаch. Thе mоst likеly sоurcе оf gеtting suppоrt fоr dеprеssiоn symptоms wаs friеnds. (...)
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  26. Peer Norms and Mental Health.Hang K. Nguyen, Trang T. Le, My Nguyen & Kien Le - 2014 - Bản Chưa Hoàn Chỉnh.
    Dеspitе thе prеvаlеncе оf cоmmоn mеntаl hеаlth prоblеms, cоllеgе studеnts sееk prоfеssiоnаl аssistаncе аt а lоw rаtе. Pеrcеptiоns оf sоciеtаl stаndаrds аrоund аid sееking cоuld bе оnе оf thе fаctоrs influеncing hеlp sееking prоclivity. Thе currеnt study lооkеd аt pеrcеivеd pееr nоrms fоr sееking hеlp fоr dеprеssеd symptоms аnd thеir rеlаtiоnship tо оnе's оwn hеlp sееking prоclivity in urbаn cоllеgе yоuth. Thе mеthоds utilizеd wеrе а crоss-sеctiоnаl survеy аpprоаch. Thе mоst likеly sоurcе оf gеtting suppоrt fоr dеprеssiоn symptоms wаs friеnds. (...)
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