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arXiv 1602.04860cs.LO
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模态逻辑的双上下文演算

Dual-Context Calculi for Modal Logic

G. A. Kavvos

AI总结:

本文为K、T、K4、GL和S4等正规模态逻辑的必然性片段提出双上下文风格的自然演绎系统和模态lambda演算,证明其与希尔伯特系统在可证明性上等价,并给出保积函子的范畴语义。

摘要:

我们为正规模态逻辑K、T、K4、GL和S4的必然性片段提出了自然演绎系统及相应的模态lambda演算。这些系统采用双上下文风格:它们具有两个不同的假设区域,其中一个可以被视为模态的,另一个可以被视为直觉主义的。我们表明这些演算根植于相继式演算。然后我们研究它们的元理论,为它们配备一个合流且强规范化的归约概念,并证明它们在可证明性上与通常的希尔伯特系统一致。最后,我们研究了一种范畴语义,它将模态解释为一个保积函子。

英文摘要:

We present natural deduction systems and associated modal lambda calculi for the necessity fragments of the normal modal logics K, T, K4, GL and S4. These systems are in the dual-context style: they feature two distinct zones of assumptions, one of which can be thought as modal, and the other as intuitionistic. We show that these calculi have their roots in in sequent calculi. We then investigate their metatheory, equip them with a confluent and strongly normalizing notion of reduction, and show that they coincide with the usual Hilbert systems up to provability. Finally, we investigate a categorical semantics which interprets the modality as a product-preserving functor.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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