Results for 'P vs NP'

948 found
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  1. A Class of Examples Demonstrating That 'P ≠ NP' in the 'P Vs NP' Problem.Vasil Penchev - 2020 - Computing Methodology eJournal (Elsevier: SSRN) 3 (19):1-19.
    The CMI Millennium “P vs NP Problem” can be resolved e.g. if one shows at least one counterexample to the "P = NP" conjecture. A certain class of problems being such counterexamples will be formulated. This implies the rejection of the hypothesis that "P = NP" for any conditions satisfying the formulation of the problem. Thus, the solution "P is different from NP" of the problem in general is proved. The class of counterexamples can be interpreted as any quantum superposition (...)
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  2. (2 other versions)Theory of Fuzzy Time Computation (2, P vs NP problem).Didehvar Farzad - manuscript
    Throughout this paper, we prove TC + CON(TC*)ͰP ≠ NP. To do that, firstly we introduce the definition of scope∗ . This definition is based on the practical situation of computation in the real world. In the real world and real computational activities, we face finite number of efficient computable functions which work in a limited time. Inspired by this fact and considering time as a fuzzy concept, we have the definition. By employing this definition, we reach to a world (...)
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  3. TC+CON(TC*) deduce P is not equal to NP.Didehvar Farzad - manuscript
    Here we discuss about the following results: 1.
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  4. The Eternal Unprovability Filter – Part I.Kiran Pai - 2016 - Dissertation, Thinkstrike
    I prove both the mathematical conjectures P ≠ NP and the Continuum Hypothesis are eternally unprovable using the same fundamental idea. Starting with the Saunders Maclane idea that a proof is eternal or it is not a proof, I use the indeterminacy of human biological capabilities in the eternal future to show that since both conjectures are independent of Axioms and have definitions connected with human biological capabilities, it would be impossible to prove them eternally without the creation and widespread (...)
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  5. The Relationship of Arithmetic As Two Twin Peano Arithmetic(s) and Set Theory: A New Glance From the Theory of Information.Vasil Penchev - 2020 - Metaphilosophy eJournal (Elseviers: SSRN) 12 (10):1-33.
    The paper introduces and utilizes a few new concepts: “nonstandard Peano arithmetic”, “complementary Peano arithmetic”, “Hilbert arithmetic”. They identify the foundations of both mathematics and physics demonstrating the equivalence of the newly introduced Hilbert arithmetic and the separable complex Hilbert space of quantum mechanics in turn underlying physics and all the world. That new both mathematical and physical ground can be recognized as information complemented and generalized by quantum information. A few fundamental mathematical problems of the present such as Fermat’s (...)
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  6.  84
    Bi-Theory Method & Navier Stokes Problem.Farzad Didehvar - unknown
    Here, we try to show that the method used in -/- Theory of Fuzzy Time Computation(TC * vs TC, TQC). 2023. ￿hal-04330281￿ -/- is a general method that sheds light on various types of problems. The author choose the navier stocks problem, to check the possibility of solving this problem by this method. This text is a guideline of possible proof of this problem.
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  7. Does accepting Fuzzy Time-Particle interpretation of Quantum Mechanics, refute the other interpretations? (Is fuzziness of time checkable experimentally?).Farzad Didehvar - manuscript
    Throughout this paper, in a nutshell we try to show a way to check Fuzzy time in general and Fuzzy time-Particle interpretation of Quantum Mechanics, experimentally. . -/- .
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  8. The impacts of Logic, Paradoxes in one side and Theory of Computation in the other side.Didehvar Farzad - manuscript
    This is a presentation about the impacts of Logic and Theory of Computation. It starts by some explanations about Theory of Computation and its relations with the other subjects in science. Then we have some explanations about paradoxes and some historical points. In continuation, we present some of the most important paradoxes. Forthcoming, Five subjects around the relations between Logic and Theory of computation is introduced. Finally, we present a new approach to solve P vs NP problem via Paradoxes (Presentation (...)
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  9. (1 other version)Zeno Paradox, Unexpected Hanging Paradox (Modeling of Reality & Physical Reality, A Historical-Philosophical view).Farzad Didehvar - manuscript
    . In our research about Fuzzy Time and modeling time, "Unexpected Hanging Paradox" plays a major role. Here, we compare this paradox to the Zeno Paradox and the relations of them with our standard models of continuum and Fuzzy numbers. To do this, we review the project "Fuzzy Time and Possible Impacts of It on Science" and introduce a new way in order to approach the solutions for these paradoxes. Additionally, we have a more general discussion about paradoxes, as Philosophical (...)
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  10.  95
    Calculus of Qualia 4: Why Something Rather than Nothing; Rather than Weakest Assumptions; Contingent Possibility vs Necessary Actuality; Possibilities of Possibilities.P. Merriam & M. A. Z. Habeeb - manuscript
    General Introduction: In [1] a Calculus of Qualia (CQ) was proposed. The key idea is that, for example, blackness is radically different than █. The former term, “blackness” refers to or is about a quale, whereas the latter term, “█” instantiates a quale in the reader’s mind and is non-referential; it does not even refer to itself. The meaning and behavior of these terms is radically different. All of philosophy, from Plato through Descartes through Chalmers, including hieroglyphics and emojis, used (...)
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  11. Equality vs. Equivalence.P. J. Grimm - 2022 - Some Logical Investigations 1.
    Many differences exist between the logical relations “equality” and “equivalence”. In this monograph I point out differences that concern definition, linguistics, computational gates and tables, denotation, application, negation of terms, negation of the relation, relations to other relations, the laws of symmetry, transitivity and reflexivity, the laws of commutation and permutation, the law of tautology, the law of distribution, the law of association, propositional meaning, and “genesis”. I also point out a form of “symmetry breaking”: the negation of some equality (...)
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  12. Yet More on the PF theory of QG and its TOE 3 29 2024.P. Merriam & M. A. Z. Habeeb - manuscript
    This paper continues and extensive exploration of the QG and TOE resulting from the PF interpretation of QM. Some highlights are an exploration of symmetries of the Standard Model, outlines of testable predictions of implications for QG, that this theory can simultaneously give an account of dark matter and dark energy, probabilities and statevector collapse vs. gravity, applications of the causal interaction tensor Cαβγδ(Fi, Fj). Note the first section mentions qualia but this is not a psychological theory this is an (...)
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  13. P≠NP, By accepting to make a shift in the Theory (Time as a fuzzy concept) The Structure of a Theory (TC*, Theory of Computation based on Fuzzy time).Farzad Didehvar - manuscript
    In a series of articles we try to show the need of a novel Theory for Theory of Computation based on considering time as a Fuzzy concept. Time is a central concept In Physics. First we were forced to consider some changes and modifications in the Theories of Physics. In the second step and throughout this article we show the positive Impact of this modification on Theory of Computation and Complexity Theory to rebuild it in a more successful and fruitful (...)
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  14. P≠NP.Didehvar Farzad - manuscript
    Here, the author tries to build the structure of the Theory of computation based on considering time as a fuzzy concept. In fact, there are reasons to consider time as a fuzzy concept. In this article, the author doesn’t go to this side but note that Brower and Husserl views on the concept of time were similar [8]. Some reasons have been given for it in [3]. Throughout this article, the author presents the Theory of Computation with Fuzzy Time. Given (...)
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  15. P≠NP, By considering time as a fuzzy concept.Didehvar Farzad - manuscript
    Here, we try to build the structure of a Theory of computation based on considering time as a fuzzy concept. Actually, there are some reasons to consider time as a fuzzy concept. In this article, we don’t go to this side but we remind that Brower and Husserl ideas about the concept of time were similar [14]. Throughout this article, we present the Theory of Computation with Fuzzy Time. Considering the classical definition of Turing Machine we change and modify the (...)
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  16. Mapping Cognitive Structure onto the Landscape of Philosophical Debate: an Empirical Framework with Relevance to Problems of Consciousness, Free will and Ethics.Jared P. Friedman & Anthony I. Jack - 2018 - Review of Philosophy and Psychology 9 (1):73-113.
    There has been considerable debate in the literature as to whether work in experimental philosophy actually makes any significant contribution to philosophy. One stated view is that many X-Phi projects, notwithstanding their focus on topics relevant to philosophy, contribute little to philosophical thought. Instead, it has been claimed the contribution they make appears to be to cognitive science. In contrast to this view, here we argue that at least one approach to X-Phi makes a contribution which parallels, and also extends, (...)
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  17. The representational structure of linguistic understanding.J. P. Grodniewicz - forthcoming - Inquiry: An Interdisciplinary Journal of Philosophy.
    The nature of linguistic understanding is a much-debated topic. Among the issues that have been discussed, two questions have recently received a lot of attention: (Q1) ‘Are states of understanding direct (i.e. represent solely what is said) or indirect (i.e. represent what is said as being said/asserted)?’ and (Q2) ‘What kind of mental attitude is linguistic understanding (e.g. knowledge, belief, seeming)?’ This paper argues that, contrary to what is commonly assumed, there is no straightforward answer to either of these questions. (...)
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  18. E. J. Lowe's Metaphysics and Philosophical/Analytic Theology. Special Issue.Mihretu P. Guta & Eric LaRock - 2021 - TheoLogica: An International Journal for Philosophy of Religion and Philosophical Theology 5 (2):1-216.
    The essays in this special issue focus on connecting the relevant aspects of Lowe’s metaphysics to issues in philosophical theology. In this regard, the essays focus on Trinity, divine causal agency, atonement, embodied existence, physicalism vs. dualism, natural science, and theological claims.
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  19. Behinderung bis über die Grenzen des Sozialen hinaus denken:Von soziokulturell überakzentuierten Behinderungsmodellen zu einer umfassenden Repräsentation menschlicher und ökologischer Aspekte in Behinderungsdebatten.Christoph P. Trueper - 2019 - TextTräger.
    With regard to recent historical developments, the Social Model has been of enormous emancipatory significance, chiefly as a counter-agent against rigid definitions of dis-/ability and the traditional role (marked by misfortune) imposed on disabled people. Based on underdetermined notions of “social construction”, this model presently threatens to unduly narrow reflections on the existential conditions of disabled agents, and to obscure crucial questions facing just social orders of the future. These notions imply an overemphasis on linguistic/mental and cultural acts in the (...)
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  20.  46
    The Philosophical Ontological Proof for P=NP.Alan T. Ho - manuscript
    A proof for P=NP in modal logic. What it takes to simulate all particles in the universe correctly.
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  21. Fuzzy Time & NP Hardness (P*=BPP*, P*≠NP*).Farzad Didehvar - manuscript
    We have shown the plausibility of considering time as a Fuzzy concept instead of classical time [7], [8]. By considering time as a fuzzy concept, we will have new classes of Complexity. Here, we show that how some famous problems will be solved in this new picture.
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  22. Inequality in the Universe, Imaginary Numbers and a Brief Solution to P=NP? Problem.Mesut Kavak - manuscript
    While I was working about some basic physical phenomena, I discovered some geometric relations that also interest mathematics. In this work, I applied the rules I have been proven to P=NP? problem over impossibility of perpendicularity in the universe. It also brings out extremely interesting results out like imaginary numbers which are known as real numbers currently. Also it seems that Euclidean Geometry is impossible. The actual geometry is Riemann Geometry and complex numbers are real.
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  23. Consistency Problem and “Unexpected Hanging Paradox” (An answering to P=NP Problem).Farzad Didehvar - unknown
    Abstract The Theory of Computation in its existed form is based on Church –Turing Thesis. Throughout this paper, we show that the Turing computation model of this theory leads us to a contradiction. In brief, by applying a well-known paradox (Unexpected hanging paradox) we show a contradiction in the Theory when we consider the Turing model as our Computation model.
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  24. Economic decision-making in psychopathy: A comparison with ventromedial prefrontal lesion patients.Michael Koenigs, Michael Kruepke & Joseph P. Newman - 2010 - Neuropsychologia 48 (7):2198–2204.
    Psychopathy, which is characterized by a constellation of antisocial behavioral traits, may be subdivided on the basis of etiology: “primary” (low-anxious) psychopathy is viewed as a direct consequence of some core intrinsic deficit, whereas “secondary” (high-anxious) psychopathy is viewed as an indirect consequence of environmental factors or other psychopathology. Theories on the neurobiology of psychopathy have targeted dysfunction within ventromedial prefrontal cortex (vmPFC) as a putative mechanism, yet the relationship between vmPFC function and psychopathy subtype has not been fully explored. (...)
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  25. A contradiction and P=NP problem.Farzad Didehvar - manuscript
    Here, by introducing a version of “Unexpected hanging paradox” first we try to open a new way and a new explanation for paradoxes, similar to liar paradox. Also, we will show that we have a semantic situation which no syntactical logical system could support it. Finally, we propose a claim in Theory of Computation about the consistency of this Theory. One of the major claim is:Theory of Computation and Classical Logic leads us to a contradiction.
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  26. (2 other versions)Theory of Fuzzy Time Computation (2) (TC+CON(〖TC〗^*)ͰP≠NP).Didehvar Farzad - manuscript
    Throughout this paper, we prove TC+CON(〖TC〗^* )ͰP≠NP. To do that, firstly, we introduce the definition of scope_^*. This definition is based on the practical situation of computation in the real world. In the real world and real computational activities, we face a finite number of efficiently computable functions which work in a limited time. Inspired by this fact and considering time as a fuzzy concept, we have the definition. By employing this definition, we reach to a world of computation, in (...)
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  27. Credal sensitivism: threshold vs. credence-one.Jie Gao - forthcoming - Inquiry: An Interdisciplinary Journal of Philosophy.
    According to an increasingly popular view in epistemology and philosophy of mind, beliefs are sensitive to contextual factors such as practical factors and salient error possibilities. A prominent version of this view, called credal sensitivism, holds that the context-sensitivity of belief is due to the context-sensitivity of degrees of belief or credence. Credal sensitivism comes in two variants: while credence-one sensitivism (COS) holds that maximal confidence (credence one) is necessary for belief, threshold credal sensitivism (TCS) holds that belief consists in (...)
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  28. Deflating Truth: Pragmatism vs. Minimalism.Cheryl Misak - 1998 - The Monist 81 (3):407 - 425.
    It seems that no philosopher these days wants a theory of truth which can be accused of being metaphysical. But even if we agree that grandiose metaphysics is to be spurned, even if we agree that our theory of truth should be a deflated one, the controversy does not die down. A variety of deflationist options present themselves. Some, with Richard Rorty, take the notion of truth to be so wedded to metaphysics that we are advised to drop it altogether. (...)
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  29. The Logical vs. the Ontological Understanding of Conditions.Rögnvaldur Ingthorsson - 2008 - Metaphysica 9 (2):129-137.
    According to the truth-functional analysis of conditions, to be ‘necessary for’ and ‘sufficient for’ are converse relations. From this, it follows that to be ‘necessary and sufficient for’ is a symmetric relation, that is, that if P is a necessary and sufficient condition for Q, then Q is a necessary and sufficient condition for P. This view is contrary to common sense. In this paper, I point out that it is also contrary to a widely accepted ontological view of conditions, (...)
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  30. The Ambiguity Thesis vs. Kripke's Defence of Russell: Further Developments.Murali Ramachandran & Nadja Rosental - 2000 - Philosophical Writings 14:49-57.
    Kripke (1977) presents an argument designed to show that the considerations in Donnellan (1966) concerning attributive and referential uses of (definite) descriptions do not, by themselves, refute Russell’s (1905) unitary theory of description sentences (RTD), which takes (utterances of) them to express purely general, quantificational, propositions. Against Kripke, Marga Reimer (1998) argues that the two uses do indeed reflect a semantic ambiguity (an ambiguity at the level of literal truth conditions). She maintains a Russellian (quantificational) analysis of utterances involving attributively (...)
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  31. Transcendental Arguments, Conceivability, and Global Vs. Local Skepticism.Moti Mizrahi - 2017 - Philosophia 45 (2):735-749.
    In this paper, I argue that, if transcendental arguments are to proceed from premises that are acceptable to the skeptic, the Transcendental Premise, according to which “X is a metaphysically necessary condition for the possibility of Y,” must be grounded in considerations of conceivability and possibility. More explicitly, the Transcendental Premise is based on what Szabó Gendler and Hawthorne call the “conceivability-possibility move.” This “inconceivability-impossibility” move, however, is a problematic argumentative move when advancing transcendental arguments for the following reasons. First, (...)
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  32. 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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  33.  40
    Optimized Energy Numbers.Parker Emmerson - 2024 - Journal of Liberated Mathematics 1 (1):36.
    We recall, "a priori," numeric energy expression: -/- Energy Numbers -/- $\begin{gathered}\mathcal{V}=\left\{f \mid \exists\left\{e_1, e_2, \ldots, e_n\right\} \in E \cup R\right\} \\ \mathcal{V}=\left\{f \mid \exists\left\{e_1, e_2, \ldots, e_n\right\} \in E, \text { and }: E \mapsto r \in R\right\} \\ \mathcal{V}=\left\{E \mid \exists\left\{a_1, \ldots, a_n\right\} \in E, E \not \neg r \in R\right\}\end{gathered}$ -/- We now introduce the set of optimized energy numbers: -/- ($H_a \in \mathcal{H}$ or $P^n = NP$ or $(P,\mathcal{L},F) = NP$). -/- Based on our formulation of (...)
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  34. Apakah perilaku tidak sadar otomatis kita mengungkapkan diri kita yang sebenarnya dan tersembunyi kebenaran tentang alam semesta? -Sebuah review dari 'Kekuatan versus Kekuatan- determinan tersembunyi perilaku manusia-penulis resmi otoritatif edisi ' (Power vs Force-the hidden determinants of human behavior) oleh David Hawkins (2012) (edisi asli 1995)(Review direvisi 2019). [REVIEW]Michael Richard Starks - 2020 - Selamat Datang di Neraka di Bumi Bayi, Perubahan Iklim, Bitcoin, Kartel, Tiongkok, Demokrasi, Keragaman, Disgenik, Kesetaraan, Peretas, Hak Asasi Manusia, Islam, Liberalisme, Kemakmuran, Web, Kekacauan, Kelaparan, Penyakit, Kekerasan, Kecerdasan Buatan, P.
    Saya sangat terbiasa dengan buku aneh dan khusus orang, tapi Hawkins berdiri keluar karena penggunaan teknik sederhana untuk menguji ketegangan otot sebagai kunci untuk "kebenaran" dari segala jenis pernyataan apa pun-i. e., bukan hanya untuk Apakah orang yang diuji percaya, tapi apakah itu benar-benar benar! Apa yang terkenal adalah bahwa orang akan menunjukkan otomatis, gangguan fisiologis dan psikologis pingsan untuk apa saja mereka terpapar-gambar, suara, sentuhan, bau, ide, orang. Jadi, membaca otot untuk mengetahui perasaan mereka yang sebenarnya tidak radikal sama (...)
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  35. Enactive Pragmatism and Ecological Psychology.Matthew Crippen - 2020 - Frontiers in Psychology 11:538644.
    A widely cited roadblock to bridging ecological psychology and enactivism is that the former identifies with realism and the latter identifies with constructivism, which critics charge is subjectivist. A pragmatic reading, however, suggests non-mental forms of constructivism that simultaneously fit core tenets of enactivism and ecological realism. After advancing a pragmatic version of enactive constructivism that does not obviate realism, I reinforce the position with an empirical illustration: Physarum polycephalum (a slime mold), a communal unicellular organism that leaves slime trails (...)
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  36. TC*.Didehvar Farzad - manuscript
    One of the possible hypotheses about time is to consider any instant of time as fuzzy number, so that two instants of time could be overlapped. Historically, some Mathematicians and Philosophers have had similar ideas like Brouwer and Husserl [5]. Throughout this article, the impact of this change on Theory of Computation and Complexity Theory are studied. In order to rebuild Theory of Computation in a more successful and productive approach to solve some major problems in Complexity Theory, the present (...)
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  37. Are Generics Defaults? A Study on the Interpretation of Generics and Universals in 3 Age- Groups of Spanish-Speaking Individuals.Elena Castroviejo, José V. Hernández-Conde, Dimitra Lazaridou-Chatzigoga, Marta Ponciano & Agustin Vicente - 2022 - Language Learning and Development 10.
    This paper reports an experiment that investigates interpretive distinctions between two different expressions of generalization in Spanish. In particular, our aim was to find out when the distinction between generic statements (GS) such as Tigers have stripes and universally quantified statements (UQS) such as All tigers have stripes was acquired in Spanish-speaking children of two different age groups (4/5-year-olds and 8/9-year-olds), and then compare these results with those of adults. The starting point of this research was the semantic distinction between (...)
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  38. The difficulty of prime factorization is a consequence of the positional numeral system.Yaroslav Sergeyev - 2016 - International Journal of Unconventional Computing 12 (5-6):453–463.
    The importance of the prime factorization problem is very well known (e.g., many security protocols are based on the impossibility of a fast factorization of integers on traditional computers). It is necessary from a number k to establish two primes a and b giving k = a · b. Usually, k is written in a positional numeral system. However, there exists a variety of numeral systems that can be used to represent numbers. Is it true that the prime factorization is (...)
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  39. AI-Completeness: Using Deep Learning to Eliminate the Human Factor.Kristina Šekrst - 2020 - In Sandro Skansi (ed.), Guide to Deep Learning Basics. Springer. pp. 117-130.
    Computational complexity is a discipline of computer science and mathematics which classifies computational problems depending on their inherent difficulty, i.e. categorizes algorithms according to their performance, and relates these classes to each other. P problems are a class of computational problems that can be solved in polynomial time using a deterministic Turing machine while solutions to NP problems can be verified in polynomial time, but we still do not know whether they can be solved in polynomial time as well. A (...)
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  40. (1 other version)Zur Standardsprache und Wortgeographie.Witold Sadziński - 2004 - Acta Universitatis Lodziensis. Folia Germanica 4:89-105.
    Autor analizuje słownictwo niemieckie pod kątem jego regionalnego zróżnicowania, koncentrując się zwłaszcza na osi północ-południe. Zwraca uwagę na charakterystyczne cechy diatopicznych wariantów północnych (m. in. występowanie geminat b, d, g) oraz południowych (m. in. zauważalny brak przegłosu). Ważnym aspektem w analizie jest także występowanie bądź brak tzw. drugiej przesuwki, która w decydującej mierze zaważyła na wyodrębnieniu się w języku niemieckim podziału dialektalnego. Autor zwraca uwagę na aspekt socjolingwistyczny występowania w słownictwie dubletów regionalnych, co związane jest z coraz szerszą migracją ludności (...)
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  41. (1 other version)Riemann, Metatheory, and Proof, Rev.3.Michael Lucas Monterey & Michael Lucas-Monterey - manuscript
    The work provides comprehensively definitive, unconditional proofs of Riemann's hypothesis, Goldbach's conjecture, the 'twin primes' conjecture, the Collatz conjecture, the Newcomb-Benford theorem, and the Quine-Putnam Indispensability thesis. The proofs validate holonomic metamathematics, meta-ontology, new number theory, new proof theory, new philosophy of logic, and unconditional disproof of the P/NP problem. The proofs, metatheory, and definitions are also confirmed and verified with graphic proof of intrinsic enabling and sustaining principles of reality.
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  42. justifying what ? - two basic types of knowledge claims revisited.Friedrich Wilhelm Grafe - 2023 - Archive.Org.
    ”It is often assumed that knowledge claims must be justified. But what kind of justification is required for knowledge ? . . . ” (*) -/- presupposition: the kind of epistemic justification depends on the type of the knowledge claim and its respective knowledge claim tradeoff ’vague vs. precise’. -/- procedere: in two - almost purely logical - case studies I account for this tradeoff and question in each case what (if any) were its general outcome wrt justification -/- first (...)
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  43. Making Something Happen. Where Causation and Agency Meet.Geert Keil - 2007 - In Francesca Castellani & Josef Quitterer (eds.), Agency and Causation in the Human Sciences. Mentis Verlag. pp. 19-35.
    1. Introduction: a look back at the reasons vs. causes debate. 2. The interventionist account of causation. 3. Four objections to interventionism. 4. The counterfactual analysis of event causation. 5. The role of free agency. 6. Causality in the human sciences. -- The reasons vs. causes debate reached its peak about 40 years ago. Hempel and Dray had debated the nature of historical explanation and the broader issue of whether explanations that cite an agent’s reasons are causal or not. Melden, (...)
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  44. Reliability of a New Measure to Assess Screen Time in Adults.Maricarmen Vizcaino, Matthew Buman, C. Tyler DesRoches & Christopher Wharton - 2019 - BMC Public Health 19 (19):1-8.
    Background: Screen time among adults represents a continuing and growing problem in relation to health behaviors and health outcomes. However, no instrument currently exists in the literature that quantifies the use of modern screen-based devices. The primary purpose of this study was to develop and assess the reliability of a new screen time questionnaire, an instrument designed to quantify use of multiple popular screen-based devices among the US population. -/- Methods: An 18-item screen-time questionnaire was created to quantify use of (...)
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  45. REVIEW OF 1988. Saccheri, G. Euclides Vindicatus (1733), edited and translated by G. B. Halsted, 2nd ed. (1986), in Mathematical Reviews MR0862448. 88j:01013.John Corcoran - 1988 - MATHEMATICAL REVIEWS 88 (J):88j:01013.
    Girolamo Saccheri (1667--1733) was an Italian Jesuit priest, scholastic philosopher, and mathematician. He earned a permanent place in the history of mathematics by discovering and rigorously deducing an elaborate chain of consequences of an axiom-set for what is now known as hyperbolic (or Lobachevskian) plane geometry. Reviewer's remarks: (1) On two pages of this book Saccheri refers to his previous and equally original book Logica demonstrativa (Turin, 1697) to which 14 of the 16 pages of the editor's "Introduction" are devoted. (...)
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  46. Optical Response of MoSe2 Crystals.H. S. Patel - 2017 - International Journal of Trend in Scientific Research and Development 1 (3):1-6.
    Solar power is a very important source of renewable energy for many low power systems. Matching the power consumption level with the supply level can make a great difference in the efficiency of power utilization. MoSe2, crystals (photo-electrodes) have been grown via a direct vapour transport technique. This paper presents results of Photo Voltage (VPh) Vs. Photo current (IPh)curves measured for MoSe2 crystals of different Intensity levels between 10, 20,…100W/cm2 in Polychromatic as well as Monochromatic light. We finding the Open (...)
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  47. Cerebral blood flow autoregulation is impaired in schizophrenia.Hsiao-Lun Ku, Timothy Lane & et al - 2017 - Schizophrenia Research:xx-yy.
    Patients with schizophrenia have a higher risk of cardiovascular diseases and higher mortality from them than does the general population; however, the underlying mechanism remains unclear. Impaired cerebral autoregulation is associated with cerebrovascular diseases and their mortality. Increased or decreased cerebral blood flow in different brain regions has been reported in patients with schizophrenia, which implies impaired cerebral autoregulation. This study investigated the cerebral autoregulation in 21 patients with schizophrenia and 23 age- and sex-matched healthy controls. None of the participants (...)
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  48. Del fuoco che non brucia: risposte, riflessioni, ringraziamenti.Achille C. Varzi - 2014 - In Elena Casetta, Valeria Giardino, Andrea Borghini, Patrizia Pedrini, Francesco Calemi, Daniele Santoro, Giuliano Torrengo, Claudio Calosi, Pierluigi Graziani & Achille C. Varzi (eds.), Mettere a Fuoco Il Mondo. Conversazioni sulla Filosofia di Achille Varzi (Special Issue of Isonomia – Epistemologica). ISONOMIA – Epistemologica. University of Urbino. pp. 111–153.
    An overview of the way I picture the amorphous world we live in, built around my comments and responses to nine festschrift essays by A. Borghini (on the Fedro metaphor and the art of butchery), F. Calemi (on the predication principle and metalinguistic nominalism), C. Calosi (on the argument from mereological universalism to extensonality), E. Casetta (on the role of “monsters” in the realism/antirealism debate), V. Giardino (on inductive reasoning, spatial representation, and problem solving), P. Graziani (on mereological notation), P. (...)
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  49. Il relativismo etico fra antropologia culturale e filosofia analitica.Sergio Volodia Marcello Cremaschi - 2007 - In Ilario Tolomio, Sergio Cremaschi, Antonio Da Re, Italo Francesco Baldo, Gian Luigi Brena, Giovanni Chimirri, Giovanni Giordano, Markus Krienke, Gian Paolo Terravecchia, Giovanna Varani, Lisa Bressan, Flavia Marcacci, Saverio Di Liso, Alice Ponchio, Edoardo Simonetti, Marco Bastianelli, Gian Luca Sanna, Valentina Caffieri, Salvatore Muscolino, Fabio Schiappa, Stefania Miscioscia, Renata Battaglin & Rossella Spinaci (eds.), Rileggere l'etica tra contingenza e principi. Ilario Tolomio (ed.). Padova: CLUEP. pp. 15-46.
    I intend to: a) clarify the origins and de facto meanings of the term relativism; b) reconstruct the reasons for the birth of the thesis named “cultural relativism”; d) reconstruct ethical implications of the above thesis; c) revisit the recent discussion between universalists and particularists in the light of the idea of cultural relativism.. -/- 1.Prescriptive Moral Relativism: “everybody is justified in acting in the way imposed by criteria accepted by the group he belongs to”. Universalism: there are at least (...)
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  50. Colombian adolescents’ preferences for independently accessing sexual and reproductive health services: a cross-sectional and bioethics analysis.Julien Brisson, Bryn Williams-Jones & Vardit Ravitsky - 2022 - Sexual and Reproductive Healthcare 100698 (32).
    Objective Our study sought to (1) describe the practices and preferences of Colombian adolescents in accessing sexual and reproductive health services: accompanied versus alone; (2) compare actual practices with stated preferences; and (3) determine age and gender differences regarding the practice and these stated preferences. -/- Methods 812 participants aged 11–24 years old answered a survey in two Profamilia clinics in the cities of Medellin and Cali in Colombia. A cross-sectional analysis was performed to compare participants’ answers based on the (...)
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