Bulletin of the Section of Logic 47/3 (2018)

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  • A post-style proof of completeness theorem for symmetric relatedness Logic S 

    Klonowski, Mateusz (Wydawnictwo Uniwersytetu Łódzkiego, 2018)
    One of the logic defined by Richard Epstein in a context of an analysis of subject matter relationship is Symmetric Relatedness Logic S. In the monograph [2] we can find some open problems concerning relatedness logic, a ...

  • A comparison of two systems of point-free topology 

    Gruszczyński, Rafał; Pietruszczak, Andrzej (Wydawnictwo Uniwersytetu Łódzkiego, 2018)
    This is a spin-off paper to [3, 4] in which we carried out an extensive analysis of Andrzej Grzegorczyk’s point-free topology from [5]. In [1] Loredana Biacino and Giangiacomo Gerla presented an axiomatization which was ...

  • B-almost distributive fuzzy lattice 

    Assaye, Berhanu; Alemneh, Mihret; Tefera, Gerima (Wydawnictwo Uniwersytetu Łódzkiego, 2018)
    The paper introduces the concept of B-Almost distributive fuzzy lattice (BADFL) in terms of its principal ideal fuzzy lattice. Necessary and sufficient conditions for an ADFL to become a B-ADFL are investigated. We also ...

  • On interpolation in next (kb.alt(2)) 

    Kostrzycka, Zofia (Wydawnictwo Uniwersytetu Łódzkiego, 2018)
    We prove that there is infinitely many tabular modal logics extending KB.Alt(2) which have interpolation.

  • Identity, equality, nameability and completeness. Part II 

    Manzano, María; Moreno, Manuel Crescencio (Wydawnictwo Uniwersytetu Łódzkiego, 2018)
    This article is a continuation of our promenade along the winding roads of identity, equality, nameability and completeness. We continue looking for a place where all these concepts converge. We assume that identity is a ...