Using the Universal Modality: Gains and Questions
نویسندگان
چکیده
The paper investigates a simple and natural enrichment of the usual modal language !£ = !£<O) with an auxiliary 'universal' modality [!!) having Kripke semantics: [!!)� is true at a world of a model iff � is valid in the model. The enriched language � = !£<O, [!!) turns out to be fairly different from the classical one. In particular the notions of satisfiability, validity and consequence in models become
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عنوان ژورنال:
- J. Log. Comput.
دوره 2 شماره
صفحات -
تاریخ انتشار 1992