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Brian F. Chellas [22]Brian Farrell Chellas [1]
  1.  76
    Brian F. Chellas (1980). Modal Logic: An Introduction. Cambridge University Press.
    A textbook on modal logic, intended for readers already acquainted with the elements of formal logic, containing nearly 500 exercises. Brian F. Chellas provides a systematic introduction to the principal ideas and results in contemporary treatments of modality, including theorems on completeness and decidability. Illustrative chapters focus on deontic logic and conditionality. Modality is a rapidly expanding branch of logic, and familiarity with the subject is now regarded as a necessary part of every philosopher's technical equipment. Chellas here offers an (...)
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  2.  15
    Brian F. Chellas (1992). Time and Modality in the Logic of Agency. Studia Logica 51 (3-4):485 - 517.
    Recent theories of agency (sees to it that) of Nuel Belnap and Michael Perloff are examined, particularly in the context of an early proposal of the author.
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  3.  33
    Brian F. Chellas (1975). Basic Conditional Logic. Journal of Philosophical Logic 4 (2):133 - 153.
  4.  12
    Brian F. Chellas & Krister Segerberg (1996). Modal Logics in the Vicinity of S. Notre Dame Journal of Formal Logic 37 (1):1-24.
    We define prenormal modal logics and show that S1, S1, S0.9, and S0.9 are Lewis versions of certain prenormal logics, determination and decidability for which are immediate. At the end we characterize Cresswell logics and ponder C. I. Lewis's idea of strict implication in S1.
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  5.  22
    Brian F. Chellas (1971). Imperatives. Theoria 37 (2):114-129.
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  6.  25
    Brian F. Chellas & Krister Segerberg (1994). Modal Logics with the MacIntosh Rule. Journal of Philosophical Logic 23 (1):67 - 86.
    Having gained some idea of what MacIntosh logics there are, we conclude this paper with a remark about the totality of them. Let theterritory of a rule or condition be the class of all modal logics that have the rule or satisfy the condition. What is MacIntosh territory, the class of all normal logics with the MacIntosh rule, like? What is its structure?
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  7.  22
    Brian F. Chellas (1980). Another Proof for the Decidability of Four Modal Logics. Philosophia 9 (2):251-264.
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  8.  17
    Brian F. Chellas (1975). Quantity and Quantification. Synthese 31 (3-4):487 - 491.
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  9.  15
    Brian F. Chellas (1995). On Bringing It About. Journal of Philosophical Logic 24 (6):563 - 571.
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  10.  13
    Brian F. Chellas (1972). Notions of Relevance. Journal of Philosophical Logic 1 (3/4):287 - 293.
    In his paper Leblanc seeks to supplant traditional forms of semantic theory with truth-value analyses. I have tried, here, to extend the scope, if not the limits, of his results. But now, in closing, I wish to register some reservations about his notion of relevance.Leblanc eschews the customary semantic analysis of intensional languages — the so-called ‘possible worlds’ semantics — as making ‘metaphysical virtue out of logical necessity’. And so he would replace such accounts with ‘truth-value’ analyses. But, alas, these (...)
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  11.  1
    Brian F. Chellas & Audrey McKinney (1975). The Completeness of Monotonic Modal Logics. Mathematical Logic Quarterly 21 (1):379-383.
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  12. Brian F. Chellas (1986). Review: Krister Segerberg, The Logic of Deliberate Action. [REVIEW] Journal of Symbolic Logic 51 (2):476-477.
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  13.  1
    Brian F. Chellas (1980). Review: Nicholas J. Moutafakis, Imperatives and Their Logics. [REVIEW] Journal of Symbolic Logic 45 (2):375-376.
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  14.  1
    Brian F. Chellas (1971). Review: R. M. Hare, The Language of Morals. [REVIEW] Journal of Symbolic Logic 36 (1):180-181.
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  15. Brian F. Chellas (1974). Gauthier David P.. Hare's Debtors. Mind, N.S. Vol. 77 , Pp. 400–405. Journal of Symbolic Logic 39 (2):366.
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  16. Brian F. Chellas (1971). Hare R. M.. The Language of Morals. Clarendon Press, Oxford 1952, Viii + 202 Pp. [REVIEW] Journal of Symbolic Logic 36 (1):180-181.
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  17. Brian F. Chellas (1974). Hare R. M.. Freedom and Reason. Clarendon Press, Oxford 1963, Viii + 228 Pp. [REVIEW] Journal of Symbolic Logic 39 (2):365-366.
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  18. Brian F. Chellas (1980). Moutafakis Nicholas J.. Imperatives and Their Logics. Sterling Publishers Pvt Ltd, New Delhi and Jullundur City, India, 1975, Xv + 216 Pp. [REVIEW] Journal of Symbolic Logic 45 (2):375-376.
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  19. Brian F. Chellas (1974). Review: David P. Gauthier, Hare's Debtors. [REVIEW] Journal of Symbolic Logic 39 (2):366-366.
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  20. Brian F. Chellas (1974). Review: R. M. Hare, Freedom and Reason. [REVIEW] Journal of Symbolic Logic 39 (2):365-366.
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  21. Brian F. Chellas (1986). Segerberg Krister. The Logic of Deliberate Action. Journal of Philosophical Logic, Vol. 11 ,Pp. 233–254. Journal of Symbolic Logic 51 (2):476-477.
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  22. Brian F. Chellas & Krister Segerberg (1986). The Logic of Deliberate Action. Journal of Symbolic Logic 51 (2):476.
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