7 found
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  1.  47
    The preservation of coherence.R. E. Jennings & P. K. Schotch - 1984 - Studia Logica 43:89.
    It is argued that the preservation of truth by an inference relation is of little interest when premiss sets are contradictory. The notion of a level of coherence is introduced and the utility of modal logics in the semantic representation of sets of higher coherence levels is noted. It is shown that this representative role cannot be transferred to first order logic via frame theory since the modal formulae expressing coherence level restrictions are not first order definable. Finally, an inference (...)
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  2.  6
    Epistemic Logic, Skepticism, and Non-Normal Modal Logic.R. E. Jennings - 1981 - Philosophical Studies 40 (1):47-67.
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  3.  3
    Some Remarks on Weak Modal Logics.R. E. Jennings - 1981 - Notre Dame Journal of Formal Logic 22:309-314.
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  4.  3
    A Deontic Counterpart Of Lewis's S1.R. E. Jennings & Kam Leung - 2005 - Notre Dame Journal of Formal Logic 46 (2):217-230.
    In this paper we investigate nonnormal modal systems in the vicinity of the Lewis system S1. It might be claimed that Lewis's modal systems are the starting point of modern modal logics. However, our interests in the Lewis systems and their relatives are not historical. They possess certain syntactical features and their frames certain structural properties that are of interest to us. Our starting point is not S1, but a weaker logic S1$^0$. We extend it to S1$^0$D, which can be (...)
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  5.  53
    Or.R. E. Jennings - 1966 - Analysis 26 (6):181.
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  6.  1
    Probabilistic Considerations on Modal Semantics.R. E. Jennings - 1981 - Notre Dame Journal of Formal Logic 22:227-238.
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  7. Paradox-tolerant logic.R. E. Jennings - 1983 - Logique Et Analyse 26 (3):291.
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