论文标题

ikt $^ω$和lukasiewicz-Models

IKT$^ω$ and Łukasiewicz-models

论文作者

Fjellstad, Andreas, Olsen, Jan-Fredrik

论文摘要

在本说明中,我们表明,对于从连续值可估计的olukasiewicz-Models获得的一阶逻辑IK $^ω$,通过将量化器视为无限性强分型/conjunction而不是无限的无限弱分离/结合/结合,用于一阶语言。此外,我们表明,这些模型不能用于为通过以透明的真理扩展IK $^ω$获得的真相IKT $^ω$提供新的一致性证明,因为这些模型与透明的真相不一致。最后,我们表明,是否可以在IKT $^ω$的顺序演算中复制这种不一致取决于对处理的量化方式。

In this note, we show that the first-order logic IK$^ω$ is sound with regard to the models obtained from continuum-valued Łukasiewicz-models for first-order languages by treating the quantifiers as infinitary strong disjunction/conjunction rather than infinitary weak disjunction/conjunction. Moreover, we show that these models cannot be used to provide a new consistency proof for the theory of truth IKT$^ω$ obtained by expanding IK$^ω$ with transparent truth because the models are inconsistent with transparent truth. Finally, we show that whether or not this inconsistency can be reproduced in the sequent calculus for IKT$^ω$ depends on how vacuous quantification is treated.

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