Negative modal operators in intuitionistic logic.
Došen, Kosta (1984)
Publications de l'Institut Mathématique. Nouvelle Série
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Došen, Kosta (1984)
Publications de l'Institut Mathématique. Nouvelle Série
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Marković, Zoran, Ognjanović, Zoran, Rašković, Miodrag (2003)
Publications de l'Institut Mathématique. Nouvelle Série
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Božić, Milan (1984)
Publications de l'Institut Mathématique. Nouvelle Série
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R. Kulesza (1970)
Applicationes Mathematicae
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Janusz Ciuciura (2017)
Bulletin of the Section of Logic
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In 1953, Jerzy Kalinowski published his paper on the logic of normative sentences. The paper is recognized as one of the first publications on the formal system of deontic logic. The aim of this paper is to present a tableau system for Kalinowski’s deontic logic and to discuss some of the topics related to the paradoxes of deontic logic.
Newton C.A. da Costa (1989)
Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti Lincei. Matematica e Applicazioni
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The Author describes new systems of logic (called "nonalethic") which are both paraconsistent and paracomplete. These systems are connected with the logic of vagueness and with certain philosophical problems (e.g. with some aspects of Hegel's logic).
Jan Woleński (2009)
Banach Center Publications
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Taneli Huuskonen (2015)
Formalized Mathematics
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This article is the second in a series formalizing some results in my joint work with Prof. Joanna Golinska-Pilarek ([9] and [10]) concerning a logic proposed by Prof. Andrzej Grzegorczyk ([11]). This part presents the syntax and axioms of Grzegorczyk’s Logic of Descriptions (LD) as originally proposed by him, as well as some theorems not depending on any semantic constructions. There are both some clear similarities and fundamental differences between LD and the non-Fregean logics introduced...
Zofia Kostrzycka (2020)
Bulletin of the Section of Logic
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We try to translate the intuitionistic propositional logic INT into Brouwer's modal logic KTB. Our translation is motivated by intuitions behind Brouwer's axiom p →☐◊p The main idea is to interpret intuitionistic implication as modal strict implication, whereas variables and other positive sentences remain as they are. The proposed translation preserves fragments of the Rieger-Nishimura lattice which is the Lindenbaum algebra of monadic formulas in INT. Unfortunately, INT is not embedded...
Slobodan Vujošević (2012)
Review of the National Center for Digitization
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Newton C.A. da Costa (1989)
Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti
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The Author describes new systems of logic (called "nonalethic") which are both paraconsistent and paracomplete. These systems are connected with the logic of vagueness and with certain philosophical problems (e.g. with some aspects of Hegel's logic).
T. Traczyk (1964)
Colloquium Mathematicae
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Miodrag Rašković, Radosav Đorđević, Zoran Marković (2001)
Publications de l'Institut Mathématique
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H. T. Goranson, Sirius-Beta (1999)
Visual Mathematics
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Mitio Takano (2020)
Bulletin of the Section of Logic
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A modified subformula property for the modal logic KD with the additionalaxiom □ ◊(A ∨ B) ⊃ □ ◊ A ∨ □ ◊B is shown. A new modification of the notion of subformula is proposed for this purpose. This modification forms a natural extension of our former one on which modified subformula property for the modal logics K5, K5D and S4.2 has been shown ([2] and [4]). The finite model property as well as decidability for the logic follows from this.