Abstract
Two intuitionistic paradefinite logics N4C and N4C+ are introduced as Gentzen-type sequent calculi. These logics are regarded as a combination of Nelson’s paraconsistent four-valued logic N4 and Wansing’s basic constructive connexive logic C. The proposed logics are also regarded as intuitionistic variants of Arieli, Avron, and Zamansky’s ideal paraconistent four-valued logic 4CC. The logic N4C has no quasi-explosion axiom that represents a relationship between conflation and paraconsistent negation, but the logic N4C+ has this axiom. The Kripke-completeness and cut-elimination theorems for N4C and N4C+ are proved.
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04 August 2020
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Acknowledgments
We would like to thank the anonymous referees for their valuable comments. This research was supported by JSPS KAKENHI Grant Numbers JP18K11171, JP16KK0007, and JSPS Core-to-Core Program (A. Advanced Research Networks).
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Kamide, N. Kripke-Completeness and Cut-elimination Theorems for Intuitionistic Paradefinite Logics With and Without Quasi-Explosion. J Philos Logic 49, 1185–1212 (2020). https://doi.org/10.1007/s10992-020-09553-w
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DOI: https://doi.org/10.1007/s10992-020-09553-w