نوع مقاله : پژوهشی
نویسنده
موسسه پژوهشی حکمت و فلسفه ایران
کلیدواژهها
عنوان مقاله English
نویسنده English
Subintuitionistic logics as a theme were first studied by G. Corsi, who introduced a basic system F in a Hilbert style proof system. The system F is sound and complete with respect to the class of Kripke frames in which the assumption of preservation of truth is dropped and which are not assumed to be reflexive or transitive. Dick de Jongh and F. Sh. Maleki, have introduced a basic logic WF in a Hilbert style proof system, much weaker than F. They proved that subintuitionistic logic WF is sound and complete with respect to the class of neighborhood models with a somewhat more complex definition than the neighborhood models for classical (non-normal) modal logics. So far, no natural deduction system has been presented for any of these two basic systems F and WF. This paper is devoted to the introduction of natural deduction systems for subintuitionistic logics WF and F.
کلیدواژهها English
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