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This study introduces refutation-aware Gentzen-style sequent calculi and Kripke-style semantics for propositional until-free linear-time temporal logic. The sequent calculi and semantics are constructed on the basis of the refutation-aware setting for Nelson's paraconsistent logic. The cut-elimination and completeness theorems for the proposed sequent calculi and semantics are proven. [ABSTRACT FROM AUTHOR]

In this study, we prove the completeness and cut-elimination theorems for a first-order extension F4CC of Arieli, Avron, and Zamansky's ideal paraconsistent four-valued logic known as 4CC. These theorems are proved using Schütte's method, which can simultaneously prove completeness and cut-elimination. [ABSTRACT FROM AUTHOR]