Bulletin of the Section of Logic 47/4 (2018)
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TABLE OF CONTENTS
1. Labeled Sequent Calculus for OrthologicTomoaki KAWANO
2. On the Definability of Leśniewski’s Copula ‘is’ in Some OntologyLike Theories
Marcin LYCZAK and Andrzej PIETRUSZCZAK
3. RuleGeneration Theorem and its Applications
Andrzej INDRZEJCZAK
4. On Injective MVModules
S. Saidi GORAGHANI and R. A. BORZOOEI
Recent Submissions

On Injective MVModules
(Wydawnictwo Uniwersytetu Łódzkiego, 2018)In this paper, by considering the notion of MVmodule, which is the structure that naturally correspond to lumodules over lurings, we study injective MVmodules and we investigate some conditions for constructing injective ... 
RuleGeneration Theorem and its Applications
(Wydawnictwo Uniwersytetu Łódzkiego, 2018)In several applications of sequent calculi going beyond pure logic, an introduction of suitably defined rules seems to be more profitable than addition of extra axiomatic sequents. A program of formalization of mathematical ... 
On the Definability of Leśniewski’s Copula ‘is’ in Some OntologyLike Theories
(Wydawnictwo Uniwersytetu Łódzkiego, 2018)We formulate a certain subtheory of Ishimoto’s [1] quantifierfree fragment of Leśniewski’s ontology, and show that Ishimoto’s theory can be reconstructed in it. Using an epimorphism theorem we prove that our theory is ... 
Labeled Sequent Calculus for Orthologic
(Wydawnictwo Uniwersytetu Łódzkiego, 2018)Orthologic (OL) is nonclassical logic and has been studied as a part of quantumlogic. OL is based on an ortholattice and is also called minimal quantum logic.Sequent calculus is used as a tool for proof in logic and has ...