具有有限模型性质的S4的一些构造性变体
Some constructive variants of S4 with the finite model property
摘要:
逻辑CS4和IS 4是模态逻辑S4的直觉变体。有限模型属性是否适用于这些逻辑中的每一个一直是一个长期存在的开放问题。在本文中,我们介绍了两个逻辑密切相关的IS 4:GS 4,通过增加哥德尔-达米特公理到IS 4,和S4 I,通过颠倒的角色模态和直觉关系。然后证明了CS4、GS4和S4 I都具有有限模型性质。
英文摘要:
The logics CS4 and IS4 are intuitionistic variants of the modal logic S4. Whether the finite model property holds for each of these logics has been a long-standing open problem. In this paper we introduce two logics closely related to IS4: GS4, obtained by adding the Godel-Dummett axiom to IS4, and S4I, obtained by reversing the roles of the modal and intuitionistic relations. We then prove that CS4, GS4, and S4I all enjoy the finite model property.
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