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  1. Ken Akiba (2014). A Defense of Indeterminate Distinctness. Synthese 191 (15):3557-3573.
    On the one hand, philosophers have presented numerous apparent examples of indeterminate individuation, i.e., examples in which two things are neither determinately identical nor determinately distinct. On the other hand, some have argued against even the coherence of the very idea of indeterminate individuation. This paper defends the possibility of indeterminate individuation against Evans’s argument and some other arguments. The Determinacy of Identity—the thesis that identical things are determinately identical—is distinguished from the Determinacy of Distinctness—the thesis that distinct things are (...)
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  2. Ken Akiba (2009). A New Theory of Quantifiers and Term Connectives. Journal of Logic, Language and Information 18 (3):403-431.
    This paper sets forth a new theory of quantifiers and term connectives, called shadow theory , which should help simplify various semantic theories of natural language by greatly reducing the need of Montagovian proper names, type-shifting, and λ-conversion. According to shadow theory, conjunctive, disjunctive, and negative noun phrases such as John and Mary , John or Mary , and not both John and Mary , as well as determiner phrases such as every man , some woman , and the boys (...)
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  3. Luca Moretti & Ken Akiba (2007). Probabilistic Measures of Coherence and the Problem of Belief Individuation. Synthese 154 (1):73 - 95.
    Coherentism in epistemology has long suffered from lack of formal and quantitative explication of the notion of coherence. One might hope that probabilistic accounts of coherence such as those proposed by Lewis, Shogenji, Olsson, Fitelson, and Bovens and Hartmann will finally help solve this problem. This paper shows, however, that those accounts have a serious common problem: the problem of belief individuation. The coherence degree that each of the accounts assigns to an information set (or the verdict it gives as (...)
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  4. Ken Akiba (2005). A Unified Theory of Quotation. Pacific Philosophical Quarterly 86 (2):161–171.
    This paper offers a theory of quotation by uniting two apparently disparate extant theories, Recanati's pragmatic theory and Washington's identity theory. Recanati draws a distinction between open and closed quotations, and contends that open quotations do not refer. Washington argues that closed quotations refer to various expression types, not just orthographic and/or phonetic types. By combining these views, this paper proposes a theory, according to which quotations, open or closed, may be tokens of semantico-physical types (i.e., meaningful expressions), and while (...)
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  5. Ken Akiba (2004). Conceptions of Truth. Australasian Journal of Philosophy 82 (3):525 – 527.
    Book Information Conceptions of Truth. Conceptions of Truth Wolfgang Künne , Oxford : Clarendon Press , 2003 , xiii + 493 , £50.00 ( cloth ) By Wolfgang Künne. Clarendon Press. Oxford. Pp. xiii + 493. £50.00 (cloth:).
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  6. Ken Akiba (2004). Free Logic. International Philosophical Quarterly 44 (2):281-283.
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  7. Ken Akiba (2004). Vagueness in the World. Noûs 38 (3):407–429.
  8. Ken Akiba (2002). A Deflationist Approach to Indeterminacy and Vagueness. Philosophical Studies 107 (1):69 - 86.
    Deflationists cannot make sense ofthe notion of referential indeterminacybecause they deny the existence of substantivereference. One way for them to make sense ofthe objective existence of linguisticindeterminacy is by embracing theworldly (or objectual) view ofindeterminacy, the view that indeterminacyexists not in reference relations but in the(non-linguistic) world itself. On this view,the entire world is divided into precisified worlds, just as it is dividedinto temporal slices and (arguably) alethicpossible worlds. Supervaluationism proves tobe neutral with respect to the debate betweenthe worldly view (...)
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  9. Ken Akiba (2002). Can Deflationism Allow for Hidden Indeterminacy? Pacific Philosophical Quarterly 83 (3):223–234.
  10. Ken Akiba (2002). Review of Terrence Parsons, Indeterminacy Identity. [REVIEW] Philosophical Quarterly 52 (1):262--5.
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  11. Ken Akiba (2000). Identity Is Simple. American Philosophical Quarterly 37 (4):389 - 404.
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  12. Ken Akiba (2000). Indefiniteness of Mathematical Objects. Philosophia Mathematica 8 (1):26--46.
    The view that mathematical objects are indefinite in nature is presented and defended, hi the first section, Field's argument for fictionalism, given in response to Benacerraf's problem of identification, is closely examined, and it is contended that platonists can solve the problem equally well if they take the view that mathematical objects are indefinite. In the second section, two general arguments against the intelligibility of objectual indefiniteness are shown erroneous, hi the final section, the view is compared to mathematical structuralism, (...)
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  13. Ken Akiba (2000). Logic and Truth. Journal of Philosophical Research 25:101-123.
    It is usually held that what distinguishes a good inference from a bad one is that a good inference is truth-preserving. Against this view, this paper argues that a logical inference is good or bad depending not on whether it is truth-preserving or not, but whether it belongs to a logical system the addition of which makes a deductively conservative extension of the derivation relations among the atomic statements. To so argue, the paper first contends that the meaning of the (...)
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  14. Ken Akiba (2000). Shogenji's Probabilistic Measure of Coherence is Incoherent. Analysis 60 (4):356–359.
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  15. Ken Akiba (2000). Vagueness as a Modality. Philosophical Quarterly 50 (200):359-370.
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  16. Ken Akiba (1998). Nominalistic Metalogic. Journal of Philosophical Logic 27 (1):35-47.
    This paper offers a novel method for nominalizing metalogic without transcending first-order reasoning about physical tokens (inscriptions, etc.) of proofs. A kind of double-negation scheme is presented which helps construct, for any platonistic statement in metalogic, a nominalistic statement which has the same assertability condition as the former. For instance, to the platonistic statement "there is a (platonistic) proof of A in deductive system D" corresponds the nominalistic statement "there is no (metalogical) proof token in (possibly informal) set theory for (...)
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  17. Ken Akiba (1996). Field on the Notion of Consistency. Notre Dame Journal of Formal Logic 37 (4):625-630.
  18. Ken Akiba (1996). Logic as Instrument: The Millian View on the Role of Logic. History and Philosophy of Logic 17 (1-2):73-83.
    I interpret Mill?s view on logic as the instrumentalist view that logical inferences, complex statements, and logical operators are not necessary for reasoning itself, but are useful only for our remembering and communicating the results of the reasoning. To defend this view, I first show that we can transform all the complex statements in the language of classical first-order logic into what I call material inference rules and reduce logical inferences to inferences which involve only atomic statements and the material (...)
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  19. Ken Akiba (1995). Quine and the Linguistic Doctrine of Logical Truth. Philosophical Studies 78 (3):237 - 256.
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