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  1. added 2019-12-01
    Reseña de ‘Wittgenstein's Metaphilosophy’ de Paul Horwich 248p (2013) (revisión revisada 2019).Michael Richard Starks - 2019 - In Delirios Utópicos Suicidas en el Siglo 21 La filosofía, la naturaleza humana y el colapso de la civilización Artículos y reseñas 2006-2019 4TH Edición. Las Vegas, NV USA: Reality Press. pp. 145-167.
    The first group of articles attempt to give some insight into how we behave that is reasonably free of theoretical delusions. In the next three groups I comment on three of the principal delusions preventing a sustainable world— technology, religion and politics (cooperative groups). People believe that society can be saved by them, so I provide some suggestions in the rest of the book as to why this is unlikely via short articles and reviews of recent books by well-known writers. (...)
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  2. added 2019-11-26
    A Toothful of Concepts: Towards a Theory of Weighted Concept Combination.Daniele Porello, Oliver Kutz, Guendalina Righetti, Nicolas Troquard, Pietro Galliani & Claudio Masolo - 2019 - In Mantas Simkus & Grant E. Weddell (eds.), Proceedings of the 32nd International Workshop on Description Logics, Oslo, Norway, June 18-21, 2019.
    We introduce a family of operators to combine Description Logic concepts. They aim to characterise complex concepts that apply to instances that satisfy \enough" of the concept descriptions given. For instance, an individual might not have any tusks, but still be considered an elephant. To formalise the meaning of \enough", the operators take a list of weighted concepts as arguments, and a certain threshold to be met. We commence a study of the formal properties of these operators, and study some (...)
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  3. added 2019-10-24
    Can We Be Skeptical About A Priori Knowledge?Sherif Salem - manuscript
    In this paper, we present a dialectical argument for a priori skepticism (i.e. the thesis that we can be skeptical about a priori knowledge). Then, we propose a framework that combines elements from inferential contextualism and logical conventionalism to offer a weak transcendental argument against a priori skepticism.
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  4. added 2019-09-19
    Logical Normativity and Rational Agency—Reassessing Locke's Relation to Logic.Huaping Lu-Adler - 2018 - Journal of the History of Philosophy 56 (1):75-99.
    There is an exegetical quandary when it comes to interpreting Locke's relation to logic.On the one hand, over the last few decades a substantive amount of literature has been dedicated to explaining Locke's crucial role in the development of a new logic in the seventeenth and eighteenth centuries. John Yolton names this new logic the "logic of ideas," while James Buickerood calls it "facultative logic."1 Either way, Locke's Essay is supposedly its "most outspoken specimen" or "culmination."2 Call this reading the (...)
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  5. added 2019-09-19
    Kant and the Normativity of Logic.Huaping Lu‐Adler - 2017 - European Journal of Philosophy 25 (2):207-230.
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  6. added 2019-08-28
    ملاحظات على استحالة, عدم اكتمال, بارااتساق,عدم تحديد, عشوائية, الحوسبة, مفارقة, وعدم اليقين في Chaitin, Wittgenstein, Hofstadter, Wolpert, دوريا, دا كوستا, جوديل, سيرل, روديش, بيرتو, فلويد, مويال شاروك ويانوفسكي.Michael Richard Starks - 2019 - Las Vegas, NV USA: Reality Press.
    ويعتقد عادة أن الاستحالة، وعدم اكتمال، وParaconsistency، وعدم تحديد، العشوائية، والحوسبة، والمفارقة، وعدم اليقين وحدود العقل هي قضايا علمية مادية أو رياضية متباينة وجود القليل أو لا شيء في المشتركه. أقترح أنها مشاكل فلسفية قياسية إلى حد كبير (أي ألعاب اللغة) التي تم حلها في الغالب من قبل فيتغنشتاين أكثر من 80years منذ. -/- "إن ما نميل إلى قوله في مثل هذه الحالة هو، بطبيعة الحال، ليس فلسفة، ولكنه مادة خام. وهكذا، على سبيل المثال، ما يميل عالم الرياضيات إلى قوله (...)
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  7. added 2019-06-05
    Philosophy of Logic. Willard Van Orman Quine.John Corcoran - 1972 - Philosophy of Science 39 (1):97-99.
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  8. added 2019-04-02
    Teoria zdań odrzuconych.Urszula Wybraniec-Skardowska - 1969 - Dissertation, Opole University
    This is the PhD dissertation, written under supervision of Professor Jerzy Słupecki, published in the book: U.Wybraniec-Skardowska i Grzegorz Bryll "Z badań nad teorią zdań odrzuconych" ( "Studies of theory of rejected sentences"), Zeszyty Naukowe Wyższej Szkoły Pedagogicznej w Opolu, Seria B: Studia i Monografie nr 22, pp. 5-131. It is the first, original publication on the theory of rejected sentences on which are based, among other, papers: "Theory of rejected propositions. I"and "Theory of rejected propositions II" with Jerzy Słupecki (...)
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  9. added 2018-12-12
    Explanation, Understanding, and Belief Revision.Andrés Páez - 2018 - In Marco Ruffino, Max Freund & Max Fernández de Castro (eds.), Logic and philosophy of logic. Recent trends from Latin America and Spain. London: College Publications. pp. 233-252.
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  10. added 2018-09-13
    Against Reflective Equilibrium for Logical Theorizing.Jack Woods - 2019 - Australasian Journal of Logic 16 (7):319.
    I distinguish two ways of developing anti-exceptionalist approaches to logical revision. The first emphasizes comparing the theoretical virtuousness of developed bodies of logical theories, such as classical and intuitionistic logic. I'll call this whole theory comparison. The second attempts local repairs to problematic bits of our logical theories, such as dropping excluded middle to deal with intuitions about vagueness. I'll call this the piecemeal approach. I then briefly discuss a problem I've developed elsewhere for comparisons of logical theories. Essentially, the (...)
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  11. added 2018-09-05
    Enciclopédia de Termos Lógico-Filosóficos.João Branquinho, Desidério Murcho & Nelson Gonçalves Gomes (eds.) - 2006 - São Paulo, SP, Brasil: Martins Fontes.
    Esta enciclopédia abrange, de uma forma introdutória mas desejavelmente rigorosa, uma diversidade de conceitos, temas, problemas, argumentos e teorias localizados numa área relativamente recente de estudos, os quais tem sido habitual qualificar como «estudos lógico-filosóficos». De uma forma apropriadamente genérica, e apesar de o território teórico abrangido ser extenso e de contornos por vezes difusos, podemos dizer que na área se investiga um conjunto de questões fundamentais acerca da natureza da linguagem, da mente, da cognição e do raciocínio humanos, bem (...)
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  12. added 2018-06-29
    Gödel's Slingshot Revisited: Does Russell's Theory of Descriptions Really Evade the Slingshot.João Daniel Dantas - 2016 - Dissertation, UFRN
    “Slingshot Arguments” are a family of arguments underlying the Fregean view that if sentences have reference at all, their references are their truth-values. Usually seen as a kind of collapsing argument, the slingshot consists in proving that, once you suppose that there are some items that are references of sentences (as facts or situations, for example), these items collapse into just two items: The True and The False. This dissertation treats of the slingshot dubbed “Gödel’s slingshot”. Gödel argued that there (...)
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  13. added 2018-04-08
    What is an Argument? An Alternative Definition.Terence Rajivan Edward - manuscript
    Philosophers and logicians talk of arguments for conclusions. In a recent paper, Jeffrey Goodman identifies a common way of thinking about what an argument is. I propose a definition that is quite different to this common way. I also make two objections to Goodman’s proposed definition.
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  14. added 2018-03-15
    Harry J. Gensler, Historical Dictionary of Logic. [REVIEW]J. Evans - 2007 - Philosophy in Review 27 (2):115.
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  15. added 2018-01-17
    Logical Partisanhood.Jack Woods - 2019 - Philosophical Studies 176 (5):1203-1224.
    A natural suggestion and increasingly popular account of how to revise our logical beliefs treats revision of logic analogously to the revision of scientific theories. I investigate this approach and argue that simple applications of abductive methodology to logic result in revision-cycles, developing a detailed case study of an actual dispute with this property. This is problematic if we take abductive methodology to provide justification for revising our logical framework. I then generalize the case study, pointing to similarities with more (...)
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  16. added 2018-01-17
    Intertranslatability, Theoretical Equivalence, and Perversion.Jack Woods - 2018 - Thought: A Journal of Philosophy 7 (1):58-68.
    I investigate syntactic notions of theoretical equivalence between logical theories and a recent objection thereto. I show that this recent criticism of syntactic accounts, as extensionally inadequate, is unwarranted by developing an account which is plausibly extensionally adequate and more philosophically motivated. This is important for recent anti-exceptionalist treatments of logic since syntactic accounts require less theoretical baggage than semantic accounts.
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  17. added 2017-11-26
    From Logical Calculus to Logical Formality—What Kant Did with Euler’s Circles.Huaping Lu-Adler - 2017 - In Corey W. Dyck & Falk Wunderlich (eds.), Kant and His German Contemporaries : Volume 1, Logic, Mind, Epistemology, Science and Ethics. Cambridge: Cambridge University Press. pp. 35-55.
    John Venn has the “uneasy suspicion” that the stagnation in mathematical logic between J. H. Lambert and George Boole was due to Kant’s “disastrous effect on logical method,” namely the “strictest preservation [of logic] from mathematical encroachment.” Kant’s actual position is more nuanced, however. In this chapter, I tease out the nuances by examining his use of Leonhard Euler’s circles and comparing it with Euler’s own use. I do so in light of the developments in logical calculus from G. W. (...)
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  18. added 2017-10-14
    What Do Paraconsistent, Undecidable, Random, Computable and Incomplete Mean? A Review of Godel's Way: Exploits Into an Undecidable World by Gregory Chaitin, Francisco A Doria , Newton C.A. Da Costa 160p (2012).Michael Starks - 2017 - Philosophy, Human Nature and the Collapse of Civilization -- Articles and Reviews 2006-2017 3rd Ed 686p(2017).
    In ‘Godel’s Way’ three eminent scientists discuss issues such as undecidability, incompleteness, randomness, computability and paraconsistency. I approach these issues from the Wittgensteinian viewpoint that there are two basic issues which have completely different solutions. There are the scientific or empirical issues, which are facts about the world that need to be investigated observationally and philosophical issues as to how language can be used intelligibly (which include certain questions in mathematics and logic), which need to be decided by looking at (...)
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  19. added 2017-10-02
    Buddhist Philosophy of Logic.Koji Tanaka - 2013 - In Steven Michael Emmanuel (ed.), Blackwell Companion to Buddhist Philosophy. Chichester: Wiley-Blackwell. pp. 320-330.
    Logic in Buddhist Philosophy concerns the systematic study of anumāna (often translated as inference) as developed by Dignāga (480-540 c.e.) and Dharmakīti (600-660 c.e.). Buddhist logicians think of inference as an instrument of knowledge (pramāṇa) and, thus, logic is considered to constitute part of epistemology in the Buddhist tradition. According to the prevalent 20th and early 21st century ‘Western’ conception of logic, however, logical study is the formal study of arguments. If we understand the nature of logic to be formal, (...)
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  20. added 2017-09-23
    Notes Tow Ard a Formal Conversation Theory.Gary James Jason - 1980 - Grazer Philosophische Studien 10 (1):119-139.
    Dialectic, as commonly approached, is not an analytic study, as the notion is defined in the paper. Where it is analytically approached (as, for example, by Grice and Hamblin), the result is pragmatic in nature, as well as syntactic and semantic. This paper lays the foundations of a purely formal (nonpragmatic) analysis of conversations. This study is accordingly called "Conversation Theory". The key notions of "conversation", "dialogue", "conversation game", "rules of response", "epistemic community" and "channel of informations" are defined precisely, (...)
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  21. added 2017-09-19
    An Empirical Route to Logical 'Conventionalism'.Eugene Chua - 2017 - In Alexandru Baltag, Jeremy Seligman & Tomoyuki Yamada (eds.), Logic, Rationality, and Interaction. LORI 2017. Lecture Notes in Computer Science, vol 10455. Berlin, Heidelberg: Springer. pp. 631-636.
    The laws of classical logic are taken to be logical truths, which in turn are taken to hold objectively. However, we might question our faith in these truths: why are they true? One general approach, proposed by Putnam [8] and more recently Dickson [3] or Maddy [5], is to adopt empiricism about logic. On this view, logical truths are true because they are true of the world alone – this gives logical truths an air of objectivity. Putnam and Dickson both (...)
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  22. added 2017-01-29
    Theory of Finite Automata with an Introduction to Formal Languages.J. Carroll & Darrell Long - 1989
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  23. added 2017-01-21
    Mill on Logic.David Godden - 2017 - In Dale E. Miller & Christopher Macleod (eds.), A companion to Mill. Hoboken, NJ: John Wiley & Sons. pp. 175-191.
    Working within the broad lines of general consensus that mark out the core features of John Stuart Mill’s (1806–1873) logic, as set forth in his A System of Logic (1843–1872), this chapter provides an introduction to Mill’s logical theory by reviewing his position on the relationship between induction and deduction, and the role of general premises and principles in reasoning. Locating induction, understood as a kind of analogical reasoning from particulars to particulars, as the basic form of inference that is (...)
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  24. added 2016-10-29
    DLEAC: A Dialetheic Logic with Exclusive Assumptions and Conclusions.Massimiliano Carrara & Enrico Martino - 2019 - Topoi 38 (2):379-388.
    This paper proposes a new dialetheic logic, a Dialetheic Logic with Exclusive Assumptions and Conclusions ), including classical logic as a particular case. In \, exclusivity is expressed via the speech acts of assuming and concluding. In the paper we adopt the semantics of the logic of paradox extended with a generalized notion of model and we modify its proof theory by refining the notions of assumption and conclusion. The paper starts with an explanation of the adopted philosophical perspective, then (...)
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  25. added 2015-07-20
    A Completenesss Theorem for a 3-Valued Semantics for a First-Order Language.Christopher Gauker - manuscript
    This document presents a Gentzen-style deductive calculus and proves that it is complete with respect to a 3-valued semantics for a language with quantifiers. The semantics resembles the strong Kleene semantics with respect to conjunction, disjunction and negation. The completeness proof for the sentential fragment fills in the details of a proof sketched in Arnon Avron (2003). The extension to quantifiers is original but uses standard techniques.
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  26. added 2014-02-22
    How We Naturally Reason.Fred Sommers - manuscript
    In the 17th century, Hobbes stated that we reason by addition and subtraction. Historians of logic note that Hobbes thought of reasoning as “a ‘species of computation’” but point out that “his writing contains in fact no attempt to work out such a project.” Though Leibniz mentions the plus/minus character of the positive and negative copulas, neither he nor Hobbes say anything about a plus/minus character of other common logical words that drive our deductive judgments, words like ‘some’, ‘all’, ‘if’, (...)
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  27. added 2013-12-31
    [Review of] Jon Williamson/Federica Russo (Eds.), Key Terms in Logic, London: Continuum, 2010. [REVIEW]Stamatios Gerogiorgakis - 2013 - Logical Analysis and History of Philosophy 16:384-386.
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  28. added 2013-10-21
    Aksjomatyczne systemy rachunku nazw.Piotr Kulicki - 2011 - Wydawnictwo KUL.
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  29. added 2013-06-11
    GENERAL SYSTEM THEORY, LIKEQUANTUM SEMANTICS AND FUZZY SETS.Ignazio Licata - 2006 - In G. Minati (ed.), Systemics of Emergence. Research and Developement. Springer.
    It is outlined the possibility to extend the quantum formalism in relation to the requirements of the general systems theory. It can be done by using a quantum semantics arising from the deep logical structure of quantum theory. It is so possible taking into account the logical openness relationship between observer and system. We are going to show how considering the truth-values of quantum propositions within the context of the fuzzy sets is here more useful for systemics. In conclusion we (...)
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  30. added 2012-11-03
    Is Common Ground a Word or Just a Sound?Paola Cantù - 2007 - In H. V. Hanson (ed.), Proceedings of the International Conference: Dissensus & The Search for Common Ground. Ontario Society for the Study of Argumentation. pp. 1--9.
    The paper analyses the role played by the concept of ‘common ground’ in argumentation theories. If a common agreement on all the rules of a discursive exchange is required, either at the beginning or at the end of an argumentative practice, then no violation of the rules is possible. The paper suggests an alternative understanding of ‘common ground’ as something that can change during the development of the argumentative practice, and in particular something that can change without the practice being (...)
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  31. added 2012-03-26
    Logic or Reason?Penelope Rush - 2012 - Logic and Logical Philosophy 21 (2):127-163.
    This paper explores the question of what logic is not. It argues against the wide spread assumptions that logic is: a model of reason; a model of correct reason; the laws of thought, or indeed is related to reason at all such that the essential nature of the two are crucially or essentially co-illustrative. I note that due to such assumptions, our current understanding of the nature of logic itself is thoroughly entangled with the nature of reason. I show that (...)
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  32. added 2010-12-23
    Where the Shape of the Egg Comes From?Marvin E. Kirsh - manuscript
    The shape of the egg is proposed to be the consequence of synergistic actions from the transmission of forces derived from instinctual motions and energy matter conversions that act to obstruct the grounding and neutralization of energy emissions by limiting in size the physical domain of self witness. A philosophy and theory associating, atemporal in nature, form and emergence is evolved from logical considerations for the construction of a mathematical/geometrical model of the egg that is generated from a template construed (...)
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  33. added 2009-04-14
    Argumentations and Logic.John Corcoran - 1989 - ARGUMENTAION 3 (1):17-43.
    Argumentations are at the heart of the deductive and the hypothetico-deductive methods, which are involved in attempts to reduce currently open problems to problems already solved. These two methods span the entire spectrum of problem-oriented reasoning from the simplest and most practical to the most complex and most theoretical, thereby uniting all objective thought whether ancient or contemporary, whether humanistic or scientific, whether normative or descriptive, whether concrete or abstract. Analysis, synthesis, evaluation, and function of argumentations are described. Perennial philosophic (...)
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  34. added 2009-04-14
    Categoricity.John Corcoran - 1980 - History and Philosophy of Logic 1 (1):187-207.
    After a short preface, the first of the three sections of this paper is devoted to historical and philosophic aspects of categoricity. The second section is a self-contained exposition, including detailed definitions, of a proof that every mathematical system whose domain is the closure of its set of distinguished individuals under its distinguished functions is categorically characterized by its induction principle together with its true atoms (atomic sentences and negations of atomic sentences). The third section deals with applications especially those (...)
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