Results for 'validity'

471 found
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  1.  70
    Validity Study Using Factor Analyses on the Defining Issues Test-2 in Undergraduate Populations.Youn-Jeng Choi, Hyemin Han, Meghan Bankhead & Stephen J. Thoma - 2020 - PLoS ONE 15 (8):e0238110.
    Introduction The Defining Issues Test (DIT) aimed to measure one’s moral judgment development in terms of moral reasoning. The Neo-Kohlbergian approach, which is an elaboration of Kohlbergian theory, focuses on the continuous development of postconventional moral reasoning, which constitutes the theoretical basis of the DIT. However, very few studies have directly tested the internal structure of the DIT, which would indicate its construct validity. Objectives Using the DIT-2, a later revision of the DIT, we examined whether a bi-factor model (...)
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  2. Naïve Validity.Julien Murzi & Lorenzo Rossi - forthcoming - Synthese:1-23.
    Beall and Murzi :143–165, 2013) introduce an object-linguistic predicate for naïve validity, governed by intuitive principles that are inconsistent with the classical structural rules. As a consequence, they suggest that revisionary approaches to semantic paradox must be substructural. In response to Beall and Murzi, Field :1–19, 2017) has argued that naïve validity principles do not admit of a coherent reading and that, for this reason, a non-classical solution to the semantic paradoxes need not be substructural. The aim of (...)
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  3. What Is Logical Validity?Hartry Field - 2015 - In Colin R. Caret & Ole T. Hjortland (eds.), Foundations of Logical Consequence. Oxford University Press.
    What are people who disagree about logic disagreeing about? The paper argues that (in a wide range of cases) they are primarily disagreeing about how to regulate their degrees of belief. An analogy is drawn between beliefs about validity and beliefs about chance: both sorts of belief serve primarily to regulate degrees of belief about other matters, but in both cases the concepts have a kind of objectivity nonetheless.
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  4. Construct validity in psychological tests – the case of implicit social cognition.Uljana Feest - 2020 - European Journal for Philosophy of Science 10 (1):1-24.
    This paper looks at the question of what it means for a psychological test to have construct validity. I approach this topic by way of an analysis of recent debates about the measurement of implicit social cognition. After showing that there is little theoretical agreement about implicit social cognition, and that the predictive validity of implicit tests appears to be low, I turn to a debate about their construct validity. I show that there are two questions at (...)
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  5. Faithfulness for Naive Validity.Ulf Hlobil - 2019 - Synthese 196 (11):4759-4774.
    Nontransitive responses to the validity Curry paradox face a dilemma that was recently formulated by Barrio, Rosenblatt and Tajer. It seems that, in the nontransitive logic ST enriched with a validity predicate, either you cannot prove that all derivable metarules preserve validity, or you can prove that instances of Cut that are not admissible in the logic preserve validity. I respond on behalf of the nontransitive approach. The paper argues, first, that we should reject the detachment (...)
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  6. Disarming a Paradox of Validity.Hartry Field - 2017 - Notre Dame Journal of Formal Logic 58 (1):1-19.
    Any theory of truth must find a way around Curry’s paradox, and there are well-known ways to do so. This paper concerns an apparently analogous paradox, about validity rather than truth, which JC Beall and Julien Murzi call the v-Curry. They argue that there are reasons to want a common solution to it and the standard Curry paradox, and that this rules out the solutions to the latter offered by most “naive truth theorists.” To this end they recommend a (...)
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  7. The Inexpressibility of Validity.Julien Murzi - 2014 - Analysis 74 (1):65-81.
    Tarski's Undefinability of Truth Theorem comes in two versions: that no consistent theory which interprets Robinson's Arithmetic (Q) can prove all instances of the T-Scheme and hence define truth; and that no such theory, if sound, can even express truth. In this note, I prove corresponding limitative results for validity. While Peano Arithmetic already has the resources to define a predicate expressing logical validity, as Jeff Ketland has recently pointed out (2012, Validity as a primitive. Analysis 72: (...)
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  8. Knowledge of Validity.Sinan Dogramaci - 2010 - Noûs 44 (3):403-432.
    What accounts for how we know that certain rules of reasoning, such as reasoning by Modus Ponens, are valid? If our knowledge of validity must be based on some reasoning, then we seem to be committed to the legitimacy of rule-circular arguments for validity. This paper raises a new difficulty for the rule-circular account of our knowledge of validity. The source of the problem is that, contrary to traditional wisdom, a universal generalization cannot be inferred just on (...)
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  9. Validity in Simple Partial Logic.Daisuke Kachi - 2002 - Annals of the Japan Association for Philosophy of Science 10 (4):139-153.
    Firstly I characterize Simple Partial Logic (SPL) as the generalization and extension of a certain two-valued logic. Based on the characterization I present two definitions of validity in SPL. Finally I show that given my characterization these two definitions are more appropriate than other definitions that have been prevalent, since both have some desirable semantic properties that the others lack.
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  10. Boole's Criteria for Validity and Invalidity.John Corcoran & Susan Wood - 1980 - Notre Dame Journal of Formal Logic 21 (4):609-638.
    It is one thing for a given proposition to follow or to not follow from a given set of propositions and it is quite another thing for it to be shown either that the given proposition follows or that it does not follow.* Using a formal deduction to show that a conclusion follows and using a countermodel to show that a conclusion does not follow are both traditional practices recognized by Aristotle and used down through the history of logic. These (...)
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  11.  42
    VALIDITY: A Learning Game Approach to Mathematical Logic.Steven James Bartlett - 1973, 1974, 2014 - Hartford, CT: Lebon Press.
    The first learning game to be developed to help students to develop and hone skills in constructing proofs in both the propositional and first-order predicate calculi. It comprises an autotelic (self-motivating) learning approach to assist students in developing skills and strategies of proof in the propositional and predicate calculus. The text of VALIDITY consists of a general introduction that describes earlier studies made of autotelic learning games, paying particular attention to work done at the Law School of Yale University, (...)
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  12. Expressing Validity: Towards a Self-Sufficient Inferentialism.Ulf Hlobil - 2020 - In Martin Blicha & Igor Sedlár (eds.), The Logica Yearbook 2019. London: College Publications. pp. 67-82.
    For semantic inferentialists, the basic semantic concept is validity. An inferentialist theory of meaning should offer an account of the meaning of "valid." If one tries to add a validity predicate to one's object language, however, one runs into problems like the v-Curry paradox. In previous work, I presented a validity predicate for a non-transitive logic that can adequately capture its own meta-inferences. Unfortunately, in that system, one cannot show of any inference that it is invalid. Here (...)
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  13. Legal Validity and the Infinite Regress.Oliver Black - 1996 - Law and Philosophy 15 (4):339 - 368.
    The following four theses all have some intuitive appeal: (I) There are valid norms. (II) A norm is valid only if justified by a valid norm. (III) Justification, on the class of norms, has an irreflexive proper ancestral. (IV) There is no infinite sequence of valid norms each of which is justified by its successor. However, at least one must be false, for (I)--(III) together entail the denial of (IV). There is thus a conflict between intuition and logical possibility. This (...)
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  14. Semantic Epistemology Redux: Proof and Validity in Quantum Mechanics.Arnold Cusmariu - 2016 - Logos and Episteme 7 (3):287-303.
    Definitions I presented in a previous article as part of a semantic approach in epistemology assumed that the concept of derivability from standard logic held across all mathematical and scientific disciplines. The present article argues that this assumption is not true for quantum mechanics (QM) by showing that concepts of validity applicable to proofs in mathematics and in classical mechanics are inapplicable to proofs in QM. Because semantic epistemology must include this important theory, revision is necessary. The one I (...)
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  15. Measuring Moral Reasoning Using Moral Dilemmas: Evaluating Reliability, Validity, and Differential Item Functioning of the Behavioral Defining Issues Test (bDIT).Youn-Jeng Choi, Hyemin Han, Kelsie J. Dawson, Stephen J. Thoma & Andrea L. Glenn - 2019 - European Journal of Developmental Psychology 16 (5):622-631.
    We evaluated the reliability, validity, and differential item functioning (DIF) of a shorter version of the Defining Issues Test-1 (DIT-1), the behavioral DIT (bDIT), measuring the development of moral reasoning. 353 college students (81 males, 271 females, 1 not reported; age M = 18.64 years, SD = 1.20 years) who were taking introductory psychology classes at a public University in a suburb area in the Southern United States participated in the present study. First, we examined the reliability of the (...)
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  16.  45
    Validity and Actuality.Vittorio Morato - 2014 - Logique Et Analyse 227:379-405.
    The notion of validity for modal languages could be defined in two slightly different ways. The first is the original definition given by S. Kripke, for which a formula φ of a modal language L is valid if and only if it is true in every actual world of every interpretation of L. The second is the definition that has become standard in most textbook presentations of modal logic, for which a formula φ of L is valid if and (...)
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  17. The Implications of Meaning for the Validity of Diagnostic Categories.David Trafimow - 2010 - Dialogues in Philosophy, Mental and Neuro Sciences 3 (1):23-24.
    Rodrigues and Banzato related the validity of diagnostic categories to their meaningfulness and I wish to explore this relation further without attempting to make criticisms. To commence, if a diagnostic category is to be valid, it must mean something.
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  18. The Validity of Aquinas’ Third Way.Rem B. Edwards - 1971 - New Scholasticism 45 (1):117-126.
    This article argues for the formal validity of and the truth of the premises and conclusion of a version of Aquinas' "Third Way" that says: If each of the parts of nature is contingent, the whole of nature is contingent. Each of the parts of nature is contingent. Therefore, the whole of nature is contingent--where "contingent" means having a cause and not existing self-sufficiently.
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  19.  84
    Modal Validity and the Dispensability of the Actuality Operator.Vittorio Morato - 2014 - In Michal Dancak & Vit Punochar (eds.), The Logica Yearbook 2013. London, UK:
    In this paper, I claim that two ways of defining validity for modal languages (“real-world” and “general” validity), corresponding to distinction between a correct and an incorrect way of defining modal valid- ity, correspond instead to two substantive ways of conceiving modal truth. At the same time, I claim that the major logical manifestation of the real- world/general validity distinction in modal propositional languages with the actuality operator should not be taken seriously, but simply as a by-product (...)
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  20. Elucidating the Construct Validity of the Psychopathic Personality Inventory Triarchic Scales.Martin Sellbom, Dustin B. Wygant Wygant & Laura E. Drislanec Drislanec - 2014 - Journal of Personality Assessment:1-8.
    This study sought to replicate and extend Hall and colleagues’ (2014) work on developing and validating scales from the Psychopathic Personality Inventory (PPI) to index the triarchic psychopathy constructs of boldness, meanness, and disinhibition. This study also extended Hall et al.’s initial findings by including the PPI Revised (PPI–R). A community sample (n D 240) weighted toward subclinical psychopathy traits and a male prison sample (n D 160) were used for this study. Results indicated that PPI–Boldness, PPI–Meanness, and PPI–Disinhibition converged (...)
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  21. Unlocking Legal Validity: Some Remarks on the Artificial Ontology of Law.Paolo Sandro - 2018 - In Anne Mackor, Stephan Kirste, Jaap Hage & Pauline Westerman (eds.), Legal Validity and Soft Law. Springer Verlag.
    Following Kelsen’s influential theory of law, the concept of validity has been used in the literature to refer to different properties of law (such as existence, membership, bindingness, and more), and so it is inherently ambiguous. More importantly, Kelsen’s equivalence between the existence and the validity of law prevents us from accounting satisfactorily for relevant aspects of our current legal practices, such as the phenomenon of “unlawful law.” This chapter addresses this ambiguity to argue that the most important (...)
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  22.  84
    On the Notion of Validity for the Bilateral Classical Logic.Ukyo Suzuki & Yoriyuki Yamagata - manuscript
    This paper considers Rumfitt’s bilateral classical logic (BCL), which is proposed to counter Dummett’s challenge to classical logic. First, agreeing with several authors, we argue that Rumfitt’s notion of harmony, used to justify logical rules by a purely proof theoretical manner, is not sufficient to justify coordination rules in BCL purely proof-theoretically. For the central part of this paper, we propose a notion of proof-theoretical validity similar to Prawitz for BCL and proves that BCL is sound and complete respect (...)
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  23. What Is the Validity Domain of Einstein’s Equations? Distributional Solutions Over Singularities and Topological Links in Geometrodynamics.Elias Zafiris - 2016 - 100 Years of Chronogeometrodynamics: The Status of the Einstein's Theory of Gravitation in Its Centennial Year.
    The existence of singularities alerts that one of the highest priorities of a centennial perspective on general relativity should be a careful re-thinking of the validity domain of Einstein’s field equations. We address the problem of constructing distinguishable extensions of the smooth spacetime manifold model, which can incorporate singularities, while retaining the form of the field equations. The sheaf-theoretic formulation of this problem is tantamount to extending the algebra sheaf of smooth functions to a distribution-like algebra sheaf in which (...)
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  24.  73
    Bioethics: An Export Product? Reflections on Hands-on Involvement in Exploring the “External” Validity of International Bioethical Declarations. [REVIEW]Mairi Levitt & Hub Zwart - 2009 - Journal of Bioethical Inquiry 6 (3):367-377.
    As the technosciences, including genomics, develop into a global phenomenon, the question inevitably emerges whether and to what extent bioethics can and should become a globalised phenomenon as well. Could we somehow articulate a set of core principles or values that ought to be respected worldwide and that could serve as a universal guide or blueprint for bioethical regulations for embedding biotechnologies in various countries? This article considers one universal declaration, the UNESCO Declaration on Bioethics and Human Rights ( 2005a (...)
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  25. A Logical-Pragmatic Perspective on Validity.Adriano C. T. Rodrigues & Claudio E. M. Banzato - 2009 - Dialogues in Philosophy, Mental and Neuro Sciences 2 (2):40-44.
    Background: Despite being often taken as the benchmark of quality for diagnostic and classificatory tools, 'validity' is admitted as a poorly worked out notion in psychiatric nosology. Objective: Here we aim at presenting a view that we believe to do better justice to the significance of the notion of validity, as well as at explaining away some misconceptions and inappropriate expectations regarding this attribute in the aforementioned context. Method: The notion of validity is addressed taking into account (...)
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  26. Reliability and Validity of Experiment in the Neurobiology of Learning and Memory.Sullivan Jacqueline Anne - 2007 - Dissertation, University of Pittsburgh
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  27. A Pragmatic Meta-Conception of Validity for Diagnostic Concepts in Psychiatry: A Step Prior to Utility, Theories and Methods of Validation.Adriano C. T. Rodrigues & Claudio E. M. Banzato - 2011 - Dialogues in Philosophy, Mental and Neuro Sciences 4 (1):20-21.
    Dear Editor, in a previous paper we have tried to delve into what validity means in the context of psychiatric nosology, arguing for a pragmatic view of it. Here we want to briefly reassert the basic points of our analysis, make a few clarifications and address some issues raised by commentators.
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  28.  13
    Brain Electrical Traits of Logical Validity.F. Salto - 2021 - Scientific Reports 11 (7892).
    Neuroscience has studied deductive reasoning over the last 20 years under the assumption that deductive inferences are not only de jure but also de facto distinct from other forms of inference. The objective of this research is to verify if logically valid deductions leave any cerebral electrical trait that is distinct from the trait left by non-valid deductions. 23 subjects with an average age of 20.35 years were registered with MEG and placed into a two conditions paradigm (100 trials for (...)
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  29.  41
    Valid for What? On the Very Idea of Unconditional Validity.Cristian Larroulet Philippi - 2021 - Philosophy of the Social Sciences 51 (2):151–175.
    What is a valid measuring instrument? Recent philosophy has attended to logic of justification of measures, such as construct validation, but not to the question of what it means for an instrument to be a valid measure of a construct. A prominent approach grounds validity in the existence of a causal link between the attribute and its detectable manifestations. Some of its proponents claim that, therefore, validity does not depend on pragmatics and research context. In this paper, I (...)
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  30. Toward A Concept of Instrumental Validity: Implications for Psychiatric Diagnosis.Ronald Pies - 2011 - Dialogues in Philosophy, Mental and Neuro Sciences 4 (1):18-19.
    Let’s begin by imagining a hypothetical psychotic illness called “Schneider’s Disease”, recognized for over 100 years. Let’s assume there has been great controversy as regards the “most valid” set of diagnostic criteria for SD.
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  31. Why a Logical-Pragmatic Perspective on Validity in Mental Health is Not Sufficient: Introduction to the Principle of Convergent Trans-Disciplinary Crossvalidity.Drozdstoj St Stoyanov - 2010 - Dialogues in Philosophy, Mental and Neuro Sciences 3 (1):25-26.
    The logical-pragmatic perspective on the psychiatric diagnosis, presented by Rodriguez and Banzato contributes to and develops the existing conventional taxonomic framework. The latter is regarded as grounded on the epistemological prerequisites proponed by Carl Gustav Hempel in the late 1960s, adopted by the DSM task force of R. Spitzer in 1973.
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  32. ‘For Me, In My Present State’: Kant on Judgments of Perception and Mere Subjective Validity.Janum Sethi - 2020 - Journal of Modern Philosophy 2 (9):20.
    Few of Kant’s distinctions have generated as much puzzlement and criticism as the one he draws in the Prolegomena between judgments of experience, which he describes as objectively and universally valid, and judgments of perception, which he says are merely subjectively valid. Yet the distinction between objective and subjective validity is central to Kant’s account of experience and plays a key role in his Transcendental Deduction of the categories. In this paper, I reject a standard interpretation of the distinction, (...)
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  33. Moral Neuroscience and Moral Philosophy: Interactions for Ecological Validity.Koji Tachibana - 2009 - Kagaku Tetsugaku 42 (2):41-58.
    Neuroscientific claims have a significant impact on traditional philosophy. This essay, focusing on the field of moral neuroscience, discusses how and why philosophy can contribute to neuroscientific progress. First, viewing the interactions between moral neuroscience and moral philosophy, it becomes clear that moral philosophy can and does contribute to moral neuroscience in two ways: as explanandum and as explanans. Next, it is shown that moral philosophy is well suited to contribute to moral neuroscience in both of these two ways in (...)
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  34. A Meta-Doomsday Argument: Uncertainty About the Validity of the Probabilistic Prediction of the End of the World.Alexey Turchin - manuscript
    Abstract: Four main forms of Doomsday Argument (DA) exist—Gott’s DA, Carter’s DA, Grace’s DA and Universal DA. All four forms use different probabilistic logic to predict that the end of the human civilization will happen unexpectedly soon based on our early location in human history. There are hundreds of publications about the validity of the Doomsday argument. Most of the attempts to disprove the Doomsday Argument have some weak points. As a result, we are uncertain about the validity (...)
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  35.  67
    Homosexuality and the Two-Way Test of Moral Validity of Sexual Affairs.Diana-Abasi Ibanga - 2017 - IOSR Journal of HumanitieS and Social Science 22 (8):45-53.
    In this article, I examined the various ethical problems raise to morally discount homosexuality. I found that so far no moral argument proved adequate ground to discount homoeroticism. However, I have developed the ‘Two-Way Test’ (TWT) by which the social acceptability of any sexual relation should be tested for moral validity. From the analysis, homosexuality was found to have failed the test. That is to say, homosexuality is not a morally valid act. Despite that, the immoral status of homosexuality (...)
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  36. Why Is a Valid Inference a Good Inference?Sinan Dogramaci - 2017 - Philosophy and Phenomenological Research 94 (1):61-96.
    True beliefs and truth-preserving inferences are, in some sense, good beliefs and good inferences. When an inference is valid though, it is not merely truth-preserving, but truth-preserving in all cases. This motivates my question: I consider a Modus Ponens inference, and I ask what its validity in particular contributes to the explanation of why the inference is, in any sense, a good inference. I consider the question under three different definitions of ‘case’, and hence of ‘validity’: the orthodox (...)
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  37. The Cut‐Free Approach and the Admissibility‐Curry.Ulf Hlobil - 2018 - Thought: A Journal of Philosophy 7 (1):40-48.
    The perhaps most important criticism of the nontransitive approach to semantic paradoxes is that it cannot truthfully express exactly which metarules preserve validity. I argue that this criticism overlooks that the admissibility of metarules cannot be expressed in any logic that allows us to formulate validity-Curry sentences and that is formulated in a classical metalanguage. Hence, the criticism applies to all approaches that do their metatheory in classical logic. If we do the metatheory of nontransitive logics in a (...)
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  38. Frege and Saving Substitution.Bryan Pickel & Brian Rabern - forthcoming - Philosophical Studies.
    Goodman and Lederman (2020) argue that the traditional Fregean strategy for preserving the validity of Leibniz’s Law of substitution fails when confronted with apparent counterexamples involving proper names embedded under propositional attitude verbs. We argue, on the contrary, that the Fregean strategy succeeds and that Goodman and Lederman’s argument misfires.
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  39.  80
    Development and Validation of the English Version of the Moral Growth Mindset Measure.Hyemin Han, Kelsie J. Dawson, YeEun Rachel Choi, Youn-Jeng Choi & Andrea L. Glenn - 2020 - F1000Research 9:256.
    Background: Moral Growth Mindset (MGM) is a belief about whether one can become a morally better person through efforts. Prior research showed that MGM is positively associated with promotion of moral motivation among adolescents and young adults. We developed and tested the English version of the MGM measure in this study with data collected from college student participants. Methods: In Study 1, we tested the reliability and validity of the MGM measure with two-wave data (N = 212, Age mean (...)
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  40. The Founding of Logic.John Corcoran - 1994 - Ancient Philosophy 14 (S1):9-24.
    Since the time of Aristotle's students, interpreters have considered Prior Analytics to be a treatise about deductive reasoning, more generally, about methods of determining the validity and invalidity of premise-conclusion arguments. People studied Prior Analytics in order to learn more about deductive reasoning and to improve their own reasoning skills. These interpreters understood Aristotle to be focusing on two epistemic processes: first, the process of establishing knowledge that a conclusion follows necessarily from a set of premises (that is, on (...)
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  41. Token-Reflexivity and Repetition.Alexandru Radulescu - 2018 - Ergo: An Open Access Journal of Philosophy 5:745-763.
    The classical rule of Repetition says that if you take any sentence as a premise, and repeat it as a conclusion, you have a valid argument. It's a very basic rule of logic, and many other rules depend on the guarantee that repeating a sentence, or really, any expression, guarantees sameness of referent, or semantic value. However, Repetition fails for token-reflexive expressions. In this paper, I offer three ways that one might replace Repetition, and still keep an interesting notion of (...)
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  42.  59
    Probabilistic Arguments in the Epistemological Approach to Argumentation.Christoph Lumer - 2011 - In Frans H. Van Eemeren, Bart Garssen, David Godden & Gordon Mitchell (eds.), Proceedings of the 7th Conference of the International Society for the Study of Argumentation. Amsterdam, Netherlands: Rozenberg; Sic Sat. pp. 1141-1154.
    The aim of the paper is to develop general criteria of argumentative validity and adequacy for probabilistic arguments on the basis of the epistemological approach to argumentation. In this approach, as in most other approaches to argumentation, proabilistic arguments have been neglected somewhat. Nonetheless, criteria for several special types of probabilistic arguments have been developed, in particular by Richard Feldman and Christoph Lumer. In the first part (sects. 2-5) the epistemological basis of probabilistic arguments is discussed. With regard to (...)
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  43. Logic for Morals, Morals From Logic.Charlie Kurth - 2011 - Philosophical Studies 155 (2):161-180.
    The need to distinguish between logical and extra-logical varieties of inference, entailment, validity, and consistency has played a prominent role in meta-ethical debates between expressivists and descriptivists. But, to date, the importance that matters of logical form play in these distinctions has been overlooked. That’s a mistake given the foundational place that logical form plays in our understanding of the difference between the logical and the extra-logical. This essay argues that descriptivists are better positioned than their expressivist rivals to (...)
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  44.  15
    Critical Remarks on Religion in the Public Sphere' – Habermas Between Kant and Kierkegaard.Roe Fremstedal - 2009 - Etikk I Praksis - Nordic Journal of Applied Ethics 3 (1):27-47.
    This article provides a critical assessment of Habermas’s recent work on religion and its role in the public sphere by comparing it to Kant’s phi-losophy of religion on the one hand and that of Kierkegaard on the other. It is argued that although Habermas is in many ways a Kantian, he diverges from Kant when it comes to religion, by taking a position which comes closer to the Kierkegaardian view that religiousness belongs to private faith rather than philosophy. This has (...)
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  45. Criticizing a Difference of Contexts: On Reichenbach’s Distincition Between “Context of Discovery” and “Context of Justification”.Gregor Schiemann - 2002 - In Schickore J. & Steinle F. (eds.), Vienna Circle Institute Yearbook. Max-Planck-Institut. pp. 237-251.
    With his distinction between the "context of discovery" and the "context of justification", Hans Reichenbach gave the traditional difference between genesis and validity a modern standard formulation. Reichenbach's distinction is one of the well-known ways in which the expression "context" is used in the theory of science. My argument is that Reichenbach's concept is unsuitable and leads to contradictions in the semantic fields of genesis and validity. I would like to demonstrate this by examining the different meanings of (...)
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  46. Logic: The Stoics (Part One).Susanne Bobzien - 1999 - In Keimpe Algra & et al (eds.), The Cambridge History of Hellenistic Philosophy. Cambridge University Press.
    ABSTRACT: A detailed presentation of Stoic logic, part one, including their theories of propositions (or assertibles, Greek: axiomata), demonstratives, temporal truth, simple propositions, non-simple propositions(conjunction, disjunction, conditional), quantified propositions, logical truths, modal logic, and general theory of arguments (including definition, validity, soundness, classification of invalid arguments).
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  47. Inferentialism Without Verificationism: Reply to Prawitz.Julien Murzi - 2011 - In Emiliano Ippoliti & Carlo Cellucci (eds.), Logic and Knowledge. Cambridge Scholars Press. pp. 285-90.
    I discuss Prawitz’s claim that a non-reliabilist answer to the question “What is a proof?” compels us to reject the standard Bolzano-Tarski account of validity, andto account for the meaning of a sentence in broadly verificationist terms. I sketch what I take to be a possible way of resisting Prawitz’s claim---one that concedes the anti-reliabilist assumption from which Prawitz’s argument proceeds.
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  48.  90
    The Modal Logic of the Countable Random Frame.Valentin Goranko & Bruce Kapron - 2003 - Archive for Mathematical Logic 42 (3):221-243.
    We study the modal logic M L r of the countable random frame, which is contained in and `approximates' the modal logic of almost sure frame validity, i.e. the logic of those modal principles which are valid with asymptotic probability 1 in a randomly chosen finite frame. We give a sound and complete axiomatization of M L r and show that it is not finitely axiomatizable. Then we describe the finite frames of that logic and show that it has (...)
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  49. Relation Between Neurophysiological and Mental States: Possible Limits of Decodability.Alfred Gierer - 1983 - Naturwissenschaften 70:282-287.
    Validity of physical laws for any aspect of brain activity and strict correlation of mental to physical states of the brain do not imply, with logical necessity, that a complete algorithmic theory of the mind-body relation is possible. A limit of decodability may be imposed by the finite number of possible analytical operations which is rooted in the finiteness of the world. It is considered as a fundamental intrinsic limitation of the scientific approach comparable to quantum indeterminacy and the (...)
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  50.  5
    Towards a Stronger Concept of Argument.Luis Felipe Bartolo Alegre - manuscript
    The standard definition of “argument” is satisfied by any series of statements in which one (of the statements) is marked as the conclusion of the others. This leads to the counter-intuitive result that “I like cookies, therefore, all swans are white” is an argument, since “therefore” marks “all swans are white” as the conclusion of “I like cookies”. This objection is often disregarded by stating that, although the previous sequence is an argument, it fails to be a good one. However, (...)
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