Abstract
In this paper logics defined by finite Sugihara matrices, as well as RM itself, are discussed both in their matrix (semantical) and in syntactical version. For each such a logic a deduction theorem is proved, and a few applications are given.
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References
J. M. Dunn, Algebraic completeness results for R-mingle and its extensions, Journal of Symbolic Logic 35 (1970), pp. 1–13.
J. Łoś and R. Suszko, Remarks on sentential logics, Indagationes Mathematicae 20 (1958), pp. 177–183.
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Tokarz, M. Deduction theorems for RM and its extensions. Stud Logica 38, 105–111 (1979). https://doi.org/10.1007/BF00370436
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DOI: https://doi.org/10.1007/BF00370436