Results for 'operator'

999 found
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  1.  81
    Co-operation and human values: a study of moral reasoning.R. E. Ewin - 1981 - New York: St. Martin's Press.
    I shall be dealing, throughout this book, with a set of related problems: the relationship between morality and reasoning in general, the way in which moral reasoning is properly to be carried on, and why morality is not arbitrary. The solutions to these problems come out of the same train of argument. Morality is not arbitrary, I shall argue, because the acceptance of certain qualities of character as virtues and the rejection of others as vices is forced on us by (...)
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  2. 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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  3. Recovery operators, paraconsistency and duality.Walter A. Carnielli, Marcelo E. Coniglio & Abilio Rodrigues Filho - 2020 - Logic Journal of the IGPL 28 (5):624-656.
    There are two foundational, but not fully developed, ideas in paraconsistency, namely, the duality between paraconsistent and intuitionistic paradigms, and the introduction of logical operators that express meta-logical notions in the object language. The aim of this paper is to show how these two ideas can be adequately accomplished by the Logics of Formal Inconsistency (LFIs) and by the Logics of Formal Undeterminedness (LFUs). LFIs recover the validity of the principle of explosion in a paraconsistent scenario, while LFUs recover the (...)
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  4. Operator arguments revisited.Juhani Yli-Vakkuri, John Hawthorne & Peter Fritz - 2019 - Philosophical Studies 176 (11):2933-2959.
    Certain passages in Kaplan’s ‘Demonstratives’ are often taken to show that non-vacuous sentential operators associated with a certain parameter of sentential truth require a corresponding relativism concerning assertoric contents: namely, their truth values also must vary with that parameter. Thus, for example, the non-vacuity of a temporal sentential operator ‘always’ would require some of its operands to have contents that have different truth values at different times. While making no claims about Kaplan’s intentions, we provide several reconstructions of how (...)
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  5. Logical operators for ontological modeling.Stefano Borgo, Daniele Porello & Nicolas Troquard - 2014 - In Pawel Garbacz & Oliver Kutz (eds.), Formal Ontology in Information Systems - Proceedings of the Eighth International Conference, {FOIS} 2014, September, 22-25, 2014, Rio de Janeiro, Brazil}. pp. 23--36.
    We show that logic has more to offer to ontologists than standard first order and modal operators. We first describe some operators of linear logic which we believe are particularly suitable for ontological modeling, and suggest how to interpret them within an ontological framework. After showing how they can coexist with those of classical logic, we analyze three notions of artifact from the literature to conclude that these linear operators allow for reducing the ontological commitment needed for their formalization, and (...)
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  6. Normality Operators and Classical Collapse.Roberto Ciuni & Massimiliano Carrara - 2018 - In T. Arazim P. And Lavicka (ed.), The Logica Yearbook 2017. Londra, Regno Unito: 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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  7. Span Operators.Berit Brogaard - 2007 - Analysis 67 (1):72-79.
    I argue that David Lewis is too quick to deny the presentist the right to employ span operators. There is no reason why the presentist could not help herself to both primitive tensed slice operators and primitive span operators. She would then have another device available to eliminate ambiguities and explain why sentences with embedded contradictions may nevertheless be true.
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  8. Strategic and Operational Planning As Approach for Crises Management Field Study on UNRWA.Mazen J. Al Shobaki, Youssef M. Abu Amuna & Samy S. Abu Naser - 2017 - International Journal of Information Technology and Electrical Engineering 5 (6):43-47.
    The research aims to study the role of strategic and operational planning as approach for crises management in UNRWA - Gaza Strip field- Palestine. Several descriptive analytical methods were used for this purpose and a survey as a tool for data collection. Community size was (881), and the study sample was stratified random (268). The overall findings of the current study show that strategic and operational planning is performed in UNRWA. The results of static analysis show that there are a (...)
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  9.  88
    An operational Definition of Electric Charge.Muntafa Mubarrat Mahi - manuscript
    The paper focuses on the part of the Coulomb’s Law that is just a definition and provides one possible mechanism for operationally defining electric charge based on the concept of force. Then a derivation of Coulomb’s law from the definition is presented and the sign of the charges are defined. Finally, the paper concludes with a discussion on the conservation of charge.
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  10. Operators in the paradox of the knower.Patrick Grim - 1993 - Synthese 94 (3):409 - 428.
    Predicates are term-to-sentence devices, and operators are sentence-to-sentence devices. What Kaplan and Montague's Paradox of the Knower demonstrates is that necessity and other modalities cannot be treated as predicates, consistent with arithmetic; they must be treated as operators instead. Such is the current wisdom.A number of previous pieces have challenged such a view by showing that a predicative treatment of modalities neednot raise the Paradox of the Knower. This paper attempts to challenge the current wisdom in another way as well: (...)
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  11. Co–operation and communication in apes and humans.Ingar Brinck & Peter Gardenfors - 2003 - Mind and Language 18 (5):484–501.
    We trace the difference between the ways in which apes and humans co–operate to differences in communicative abilities, claiming that the pressure for future–directed co–operation was a major force behind the evolution of language. Competitive co–operation concerns goals that are present in the environment and have stable values. It relies on either signalling or joint attention. Future–directed co–operation concerns new goals that lack fixed values. It requires symbolic communication and context–independent representations of means and goals. We analyse these ways of (...)
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  12. Track-Down Operations on Bilattices.Damian Szmuc - 2018 - In Robert Wille & Martin Lukac (eds.), Proceedings of the 48th IEEE International Symposium on Multiple-Valued Logic. Los Alamitos, California, EE. UU.: pp. 74-79.
    This paper discusses a dualization of Fitting's notion of a "cut-down" operation on a bilattice, rendering a "track-down" operation, later used to represent the idea that a consistent opinion cannot arise from a set including an inconsistent opinion. The logic of track-down operations on bilattices is proved equivalent to the logic d_Sfde, dual to Deutsch's system S_fde. Furthermore, track-down operations are employed to provide an epistemic interpretation for paraconsistent weak Kleene logic. Finally, two logics of sequential combinations of cut-and track-down (...)
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  13.  69
    Immigrant-operated Informal Financial Associations in South Africa: Problems and Solutions.Linus Nkem & Robertson K. Tengeh - 2018 - Acta Universitatis Danubius 14 (1):84-98.
    While immigrants are at liberty to start self-help financial associations (referred to as stokvels in South Africa) to cater for their unfufilled need for capital, the benefits of this laudable effort are seldom maximised due to a number of shortcomings. Aim: This paper seeks to ascertain the operational obstacles that immigrant-run stokvels face and to suggest solutions accordingly. Method: Aiming to complement each other, quantitative and qualitative research approaches were utilised to conduct this study. Quantitative and qualitative data were collected (...)
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  14. A Semantics-Based Common Operational Command System for Multiagency Disaster Response.Linda Elmhadhbi, Mohamed-Hedi Karray, Bernard Archimède, J. Neil Otte & Barry Smith - 2022 - IEEE Transactions on Engineering Management 69 (6):3887 - 3901.
    Disaster response is a highly collaborative and critical process that requires the involvement of multiple emergency responders (ERs), ideally working together under a unified command, to enable a rapid and effective operational response. Following the 9/11 and 11/13 terrorist attacks and the devastation of hurricanes Katrina and Rita, it is apparent that inadequate communication and a lack of interoperability among the ERs engaged on-site can adversely affect disaster response efforts. Within this context, we present a scenario-based terrorism case study to (...)
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  15. Formal operations and simulated thought.John-Michael Kuczynski - 2006 - Philosophical Explorations 9 (2):221-234.
    A series of representations must be semantics-driven if the members of that series are to combine into a single thought: where semantics is not operative, there is at most a series of disjoint representations that add up to nothing true or false, and therefore do not constitute a thought at all. A consequence is that there is necessarily a gulf between simulating thought, on the one hand, and actually thinking, on the other. A related point is that a popular doctrine (...)
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  16. Designing the Smart Operator 4.0 for Human Values: A Value Sensitive Design Approach.Steven Umbrello, Antonio Padovano & Lucia Gazzaneo - 2020 - Procedia Manufacturing 42:219-226.
    Emerging technologies such as cloud computing, augmented and virtual reality, artificial intelligence and robotics, among others, are transforming the field of manufacturing and industry as a whole in unprecedent ways. This fourth industrial revolution is consequentially changing how operators that have been crucial to industry success go about their practices in industrial environments. This short paper briefly introduces the notion of the Operator 4.0 as well as how this novel way of conceptualizing the human operator necessarily implicates human (...)
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  17. Intermediate Role of Operations Standard in the Relationship between the Focus on Benefiting Students and Students Satisfaction in Palestinian Universities.Suliman A. El Talla, Mazen J. Al Shobaki, Samy S. Abu-Naser & Ahmed M. A. FarajAllah - 2019 - International Journal of Academic Multidisciplinary Research (IJAMR) 3 (5):86-100.
    The study aimed to identify the intermediate role of the standard of operations in the relationship between the focus on students and beneficiaries in achieving satisfaction of students in Palestinian universities. The study used the analytical descriptive method. The study was conducted on university leadership in Al-Azhar, Islamic and Al-Aqsa Universities. The study sample consisted of (200) individuals, 182 of whom responded, and the questionnaire was used in collecting the data. The results of the study were as follows: - There (...)
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  18. Inverse Operations with Transfinite Numbers and the Kalam Cosmological Argument.Graham Oppy - 1995 - International Philosophical Quarterly 35 (2):219-221.
    William Lane Craig has argued that there cannot be actual infinities because inverse operations are not well-defined for infinities. I point out that, in fact, there are mathematical systems in which inverse operations for infinities are well-defined. In particular, the theory introduced in John Conway's *On Numbers and Games* yields a well-defined field that includes all of Cantor's transfinite numbers.
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  19. Dispositionalism and the Modal Operators.David Yates - 2015 - Philosophy and Phenomenological Research 91 (2):411-424.
    Actualists of a certain stripe—dispositionalists—hold that metaphysical modality is grounded in the powers of actual things. Roughly: p is possible iff something has, or some things have, the power to bring it about that p. Extant critiques of dispositionalism focus on its material adequacy, and question whether there are enough powers to account for all the possibilities we intuitively want to countenance. For instance, it seems possible that none of the actual contingent particulars ever existed, but it is impossible to (...)
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  20. Natural Deduction for Diagonal Operators.Fabio Lampert - 2017 - In Maria Zack & Dirk Schlimm (eds.), Research in History and Philosophy of Mathematics: The CSHPM 2016 Annual Meeting in Calgary, Alberta. Cham: Birkhäuser. pp. 39-51.
    We present a sound and complete Fitch-style natural deduction system for an S5 modal logic containing an actuality operator, a diagonal necessity operator, and a diagonal possibility operator. The logic is two-dimensional, where we evaluate sentences with respect to both an actual world (first dimension) and a world of evaluation (second dimension). The diagonal necessity operator behaves as a quantifier over every point on the diagonal between actual worlds and worlds of evaluation, while the diagonal possibility (...)
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  21. A Taxonomy of Composition Operations.Jan Westerhoff - 2004 - Logique and Analyse 2004 (47):375-393.
    A set of parameters for classifying composition operations is introduced. These parameters determine whether a composition operation is 1) universal, 2) determinate, 3) whether there is a difference between possible and actual compositions, 4) whether there can be singleton compositions, 5) whether they give rise to a hierarchy, and 6) whether components of compositions can be repeated. Philosophical implications of these parameters (in particular in relation to set theory) and mereology are discussed.
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  22. Operational axioms for diagonalizing states.Giulio Chiribella & Carlo Maria Scandolo - 2015 - EPTCS 195:96-115.
    In quantum theory every state can be diagonalized, i.e. decomposed as a convex combination of perfectly distinguishable pure states. This elementary structure plays an ubiquitous role in quantum mechanics, quantum information theory, and quantum statistical mechanics, where it provides the foundation for the notions of majorization and entropy. A natural question then arises: can we reconstruct these notions from purely operational axioms? We address this question in the framework of general probabilistic theories, presenting a set of axioms that guarantee that (...)
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  23. Info-Relational Cognitive Operability of the Posterior Cingulate Cortex According to the Informational Model of Consciousness.Florin Gaiseanu - 2020 - International Journal of Psychological and Brain Sciences 5 (4):61-68.
    Based on the analysis of the accumulated experimental data and on the informational concepts of the Informational Model of Consciousness (IMC), in this article is presented an informational modeling of the operability of the posterior cingulate cortex (PCC). Examination of the experimental results obtained with the modern non-destructive, high spatial resolution investigation tools to study the functional characteristics of the PCC and associate metabolic processes, shows mainly that this is involved in the large scale default mode network (DMN), composed primarily (...)
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  24. A recovery operator for nontransitive approaches.Eduardo Alejandro Barrio, Federico Pailos & Damian Szmuc - 2020 - Review of Symbolic Logic 13 (1):80-104.
    In some recent articles, Cobreros, Egré, Ripley, & van Rooij have defended the idea that abandoning transitivity may lead to a solution to the trouble caused by semantic paradoxes. For that purpose, they develop the Strict-Tolerant approach, which leads them to entertain a nontransitive theory of truth, where the structural rule of Cut is not generally valid. However, that Cut fails in general in the target theory of truth does not mean that there are not certain safe instances of Cut (...)
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  25. On momentum operators given by Killing vectors whose integral curves are geodesics.Thomas Schürmann - 2022 - Physics 4 (4): 1440-1452.
    We consider momentum operators on intrinsically curved manifolds. Given that the momentum operators are Killing vector fields whose integral curves are geodesics, it is shown that the corresponding manifold is either flat, or otherwise of compact type with positive constant sectional curvature and dimension equal to 1, 3 or 7. Explicit representations of momentum operators and the associated Casimir element will be discussed for the 3-sphere. It will be verified that the structure constants of the underlying Lie algebra are proportional (...)
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  26. Ethics for Drone Operators: Rules versus Virtues.Peter Olsthoorn - 2021 - In Christian Enemark (ed.), Ethics of Drone Strikes: Restraining Remote-Control Killing. Edinburgh: Edinburgh University Press.
    Until recently most militaries tended to see moral issues through the lens of rules and regulations. Today, however, many armed forces consider teaching virtues to be an important complement to imposing rules and codes from above. A closer look reveals that it is mainly established military virtues such as honour, courage and loyalty that dominate both the lists of virtues and values of most militaries and the growing body of literature on military virtues. Although there is evidently still a role (...)
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  27. Generalized logical operations among conditional events.Angelo Gilio & Giuseppe Sanfilippo - 2019 - Applied Intelligence 49:79-102.
    We generalize, by a progressive procedure, the notions of conjunction and disjunction of two conditional events to the case of n conditional events. In our coherence-based approach, conjunctions and disjunctions are suitable conditional random quantities. We define the notion of negation, by verifying De Morgan’s Laws. We also show that conjunction and disjunction satisfy the associative and commutative properties, and a monotonicity property. Then, we give some results on coherence of prevision assessments for some families of compounded conditionals; in particular (...)
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  28. Is defining life pointless? Operational definitions at the frontiers of Biology.Leonardo Bich & Sara Green - 2017 - Synthese:1-28.
    Despite numerous and increasing attempts to define what life is, there is no consensus on necessary and sufficient conditions for life. Accordingly, some scholars have questioned the value of definitions of life and encouraged scientists and philosophers alike to discard the project. As an alternative to this pessimistic conclusion, we argue that critically rethinking the nature and uses of definitions can provide new insights into the epistemic roles of definitions of life for different research practices. This paper examines the possible (...)
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  29. Imagining stories: attitudes and operators.Neil Van Leeuwen - 2021 - Philosophical Studies 178 (2):639-664.
    This essay argues that there are theoretical benefits to keeping distinct—more pervasively than the literature has done so far—the psychological states of imagining that p versus believing that in-the-story p, when it comes to cognition of fiction and other forms of narrative. Positing both in the minds of a story’s audience helps explain the full range of reactions characteristic of story consumption. This distinction also has interesting conceptual and explanatory dimensions that haven’t been carefully observed, and the two mental state (...)
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  30. Variable Binding Term Operators.John Corcoran, William Hatcher & John Herring - 1972 - Zeitschrift fur mathematische Logik und Grundlagen der Mathematik 18 (12):177-182.
    Chapin reviewed this 1972 ZEITSCHRIFT paper that proves the completeness theorem for the logic of variable-binding-term operators created by Corcoran and his student John Herring in the 1971 LOGIQUE ET ANALYSE paper in which the theorem was conjectured. This leveraging proof extends completeness of ordinary first-order logic to the extension with vbtos. Newton da Costa independently proved the same theorem about the same time using a Henkin-type proof. This 1972 paper builds on the 1971 “Notes on a Semantic Analysis of (...)
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  31.  77
    Two Lost Operations of Arithmetic: Duplation and Mediation.Lloyd Strickland - 2022 - Mathematics Today 65:212-213.
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  32. Revisiting Constructive Mingle: Algebraic and Operational Semantics.Yale Weiss - 2022 - In Katalin Bimbo (ed.), Relevance Logics and other Tools for Reasoning. Essays in Honor of J. Michael Dunn. London: College Publications. pp. 435-455.
    Among Dunn’s many important contributions to relevance logic was his work on the system RM (R-mingle). Although RM is an interesting system in its own right, it is widely considered to be too strong. In this chapter, I revisit a closely related system, RM0 (sometimes known as ‘constructive mingle’), which includes the mingle axiom while not degenerating in the way that RM itself does. My main interest will be in examining this logic from two related semantical perspectives. First, I give (...)
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  33.  69
    Worker Co-Operatives for the 21st Century. [REVIEW]Tim Christiaens - 2022 - Critical Sociology 48:1-7.
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  34. The Design and Operation of Rules of Origin in Greater Arab Free Trade Area: Challenges of Implementation and Reform.Bashar H. Malkawi - 2019 - Journal of World Trade 53 (2):243–272.
    Rules of origin (ROO) are pivotal element of the Greater Arab Free Trade Area (GAFTA). ROO are basically established to ensure that only eligible products receive preferential tariff treatment. Taking into consideration the profound implications of ROO for enhancing trade flows and facilitating the success of regional integration, this article sheds light on the way that ROO in GAFTA are designed and implemented. Moreover, the article examines the extent to which ROO still represents an obstacle to the full implementation of (...)
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  35.  18
    Content and Operation.Andrew Milward - 2017 - Andrewmilward.Net.
    Content and Operation develops the concept of a distinction within thought itself according to what it thinks (i.e. its content) and what it does (i.e. its operation). It is an essay on creative thought that explores the way that the vision of this distinction may alter the terrain in which thought thinks.
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  36. Dehumanization: its Operations and its Origins.Robert Mark Simpson - 2016 - Journal of Law and Biosciences 3 (1):178-184.
    Gail Murrow and Richard Murrow offer a novel account of dehumanization, by synthesizing data which suggest that where subject S has a dehumanized view of group G, S‘s neural mechanisms of empathy show a dampened response to the suffering of members of G, and S‘s judgments about the humanity of members of G are largely non-conscious. Here I examine Murrow and Murrow‘s suggestions about how identity-based hate speech bears responsibility for dehumanization in the first place. I identify a distinction between (...)
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  37. Thompson's modes of operation of ideology and depth hermeneutics as hermeneutical tools: ideology and the Sermon on the Mount (Matthew 4:23-7:29): forum.Edvard Kristian - 2004 - Acta Theologica 24 (1).
    This paper will first provide a synopsis of Thompson's understanding of ideology and then apply it to two selected verses (Mt 5:3 & 4) from the Sermon on the Mount. An attempt will be made to reveal the existence of an ideology in the text, determine its symbolic form and construction, and confirm the suitability of Thompson's modes of operation of ideology and depth hermeneutics as tools of interpretation to be applied to the text. This methodology will disclose how one (...)
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  38. Singular Truth-Ascriptions: Truth-Operator vs. Truth-Predicate.Dolf Rami - manuscript
    In this paper I am concerned with the semantic analysis of sentences of the form 'It is true that p'. I will compare different proposals that have been made to analyse such sentences and will defend a view that treats this sentences as a mere sytactic variation of sentences of the form 'That p is true'.
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  39. Notes on a semantic analysis of variable binding term operators.J. Corcoran & John Herring - 1971 - Logique Et Analyse 55:644-657.
    -/- A variable binding term operator (vbto) is a non-logical constant, say v, which combines with a variable y and a formula F containing y free to form a term (vy:F) whose free variables are exact ly those of F, excluding y. -/- Kalish-Montague proposed using vbtos to formalize definite descriptions, set abstracts {x: F}, minimalization in recursive function theory, etc. However, they gave no sematics for vbtos. Hatcher gave a semantics but one that has flaws. We give a (...)
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  40. Effetto orologi e definizioni operative di tempo.Claudio Borghi - 2012 - Isonomia: Online Philosophical Journal of the University of Urbino:1-14.
    Starting from a critical analysis of the clock effect, this paper proposes to deduce different operational definitions of time from the different clocks that we can use to quantify durations. A new interpretation of thermodynamic time, as different from absolute and relativistic, is introduced. The analysis leads to infer the coexistence in physics of different incommensurable operational definitions of time and the need of discuss their coherence and reality.
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  41. Informational Mode of the Brain Operation and Consciousness as an Informational Related System.Florin Gaiseanu - 2019 - Archives in Biomedical Engineering and Biotechnology 1 (5):1-7.
    Introduction: the objective of the investigation is to analyse the informational operating-mode of the brain and to extract conclusions on the structure of the informational system of the human body and consciousness. Analysis: the mechanisms and processes of the transmission of information in the body both by electrical and non-electrical ways are analysed in order to unify the informational concepts and to identify the specific essential requirements supporting the life. It is shown that the electrical transmission can be described by (...)
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  42. Experiencer Phrases, Predicates of Personal Taste and Relativism: On Cappelen and Hawthorne’s Critique of the Operator Argument.Dan Zeman - 2013 - Croatian Journal of Philosophy 13 (3):375-398.
    In the debate between relativism and contextualism about various expressions, the Operator Argument, initially proposed by Kaplan , has been taken to support relativism. However, one widespread reaction against the argument has taken the form of arguing against one assumption made by Kaplan: namely, that certain natural language expressions are best treated as sentential operators. Focusing on the only extant version of the Operator Argument proposed in connection to predicates of personal taste such as “tasty” and experiencer phrases (...)
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  43. Big Tech corporations and AI: A Social License to Operate and Multi-Stakeholder Partnerships in the Digital Age.Marianna Capasso & Steven Umbrello - 2023 - In Francesca Mazzi & Luciano Floridi (eds.), The Ethics of Artificial Intelligence for the Sustainable Development Goals. Cham: Springer. pp. 231–249.
    The pervasiveness of AI-empowered technologies across multiple sectors has led to drastic changes concerning traditional social practices and how we relate to one another. Moreover, market-driven Big Tech corporations are now entering public domains, and concerns have been raised that they may even influence public agenda and research. Therefore, this chapter focuses on assessing and evaluating what kind of business model is desirable to incentivise the AI for Social Good (AI4SG) factors. In particular, the chapter explores the implications of this (...)
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  44. Temporalism and Composite Tense Operators.Dan Zeman - 2013 - Disputatio 5 (37):323-328.
    This is my contribution to a symposium on Berit Brogaard's book "Transient Truths" in which I criticize her treatment of various linguistic phenomena related to tense.
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  45. Are Reduplicative Qua-Operators Superfluous?Eric Yang - 2021 - European Journal for Philosophy of Religion 13 (2):145-162.
    Reduplicative approaches to the incarnation attempt to avoid the charge of incoherence by employing a qua-operator that operates on an entire assertion. The main objection to this approach is that it still yields a contradiction. Recently, two new reduplicative approaches have been offered that purport to avoid contradiction, one that offers a novel analysis of negative predications and the other which prevents conjoining divine and human predicates into a meaningful sentence. In this paper, I argue that these newer approaches (...)
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  46. A Graph-theoretic Method to Define any Boolean Operation on Partitions.David Ellerman - 2019 - The Art of Discrete and Applied Mathematics 2 (2):1-9.
    The lattice operations of join and meet were defined for set partitions in the nineteenth century, but no new logical operations on partitions were defined and studied during the twentieth century. Yet there is a simple and natural graph-theoretic method presented here to define any n-ary Boolean operation on partitions. An equivalent closure-theoretic method is also defined. In closing, the question is addressed of why it took so long for all Boolean operations to be defined for partitions.
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  47. The Impact of Management Requirements and Operations of Computerized Management Information Systems to Improve Performance (Practical Study on the employees of the company of Gaza Electricity Distribution).Samy S. Abu Naser & Mazen J. Al Shobaki - 2016 - Al-Azhar University, Gaza 1 (1):1-28.
    The research aims to identify the impact of the management requirements on operating of computerized management information systems to improve performance, and discuss the perceptions of respondents to develop the performance of employees in the Gaza Electricity Distribution Company, the researchers used the stratified sample method, (360) questionnaires were distributed on the study sample, (306) questionnaires were recoved with a percentage of (85%). The most important findings of the study: computerized MI have a positive impact on the development of performance (...)
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  48. The Impact of Management Requirements and Operations of Computerized MIS to Improve Performance.Samy S. Abu Naser & Mazen J. Al Shobaki - 2016 - Al-Azhar University of Gaza, Palestine 1:1-28.
    The research aims to identify the impact of the management requirements on operating of computerized management information systems to improve performance, and discuss the perceptions of respondents to develop the performance of employees in the Gaza Electricity Distribution Company, the researchers used the stratified sample method, (360) questionnaires were distributed on the study sample, (306) questionnaires were recovered with a percentage of (85%). The most important findings of the study: computerized MI have a positive impact on the development of performance (...)
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  49. 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 (...)
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  50.  96
    The quantum mechanical time reversal operator.Andrew Thomas Holster - unknown
    The analysis of the reversibility of quantum mechanics depends upon the choice of the time reversal operator for quantum mechanical states. The orthodox choice for the time reversal operator on QM states is known as the Wigner operator, T*, where * performs complex conjugation. The peculiarity is that this is not simply the unitary time reversal operation, but an anti-unitary operator, involving complex conjugation in addition to ordinary time reversal. The alternative choice is the Racah (...), which is simply ordinary time reversal, T. Orthodox treatments hold that it is either logically or empirically necessary to adopt the Wigner operator, and the Racah operator has received little attention. The basis for this choice is analysed in detail, and it is concluded that all the conventional arguments for rejecting the Racah operator and adopting the Wigner operator are mistaken. The additional problem of whether the deterministic part of quantum mechanics should be judged to be reversible or not is also considered. The adoption of the Racah operator for time reversal appears prima facie to entail that quantum mechanics is irreversible. However, it is concluded that the real answer to question depends upon the choice of interpretation of the theory. In any case, the conventional reasons for claiming that quantum mechanics is reversible are incorrect. (shrink)
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