Now showing items 1-7 of 7

    • A General Model of Neutrosophic Ideals in BCK/BCI-algebras Based on Neutrosophic Points 

      Bordbar, Hashem; Borzooei, Rajab Ali; Smarandache, Florentin; Jun, Young Bae (Wydawnictwo Uniwersytetu Łódzkiego, 2020-08-15)
      More general form of (∈, ∈ ∨q)-neutrosophic ideal is introduced, and their properties are investigated. Relations between (∈, ∈)-neutrosophic ideal and (∈, ∈ ∨q(kT ,kI ,kF ))-neutrosophic ideal are discussed. Characterizations ...
    • Falling Shadow Theory with Applications in Hoops 

      Borzooei, Rajab Ali; Rezaei, Gholam Reza; Kologhani, Mona Aaly; Jun, Young Bae (Wydawnictwo Uniwersytetu Łódzkiego, 2021-01-20)
      The falling shadow theory is applied to subhoops and filters in hoops. The notions of falling fuzzy subhoops and falling fuzzy filters in hoops are introduced, and several properties are investigated. Relationship between ...
    • A Note on 3×3-valued Łukasiewicz Algebras with Negation 

      Gallardo, Carlos; Ziliani, Alicia (Wydawnictwo Uniwersytetu Łódzkiego, 2021-05-27)
      In 2004, C. Sanza, with the purpose of legitimizing the study of \(n\times m\)-valued Łukasiewicz algebras with negation (or \(\mathbf{NS}_{n\times m}\)-algebras) introduced \(3 \times 3\)-valued Łukasiewicz algebras with ...
    • Tense Operators on BL-algebras and Their Applications 

      Paad, Akbar (Wydawnictwo Uniwersytetu Łódzkiego, 2021-05-28)
      In this paper, the notions of tense operators and tense filters in \(BL\)-algebras are introduced and several characterizations of them are obtained. Also, the relation among tense \(BL\)-algebras, tense \(MV\)-algebras ...
    • Omitting Types in Fragments and Extensions of First Order Logic 

      Sayed Ahmed, Tarek (Wydawnictwo Uniwersytetu Łódzkiego, 2021-05-28)
      Fix \(2 < n < \omega\). Let \(L_n\) denote first order logic restricted to the first n variables. Using the machinery of algebraic logic, positive and negative results on omitting types are obtained for \(L_n\) and for ...
    • A Note on Gödel-Dummet Logic LC 

      Robles, Gemma; Méndez, José M. (Wydawnictwo Uniwersytetu Łódzkiego, 2021-07-01)
      Let \(A_{0},A_{1},...,A_{n}\) be (possibly) distintict wffs, \(n\) being an odd number equal to or greater than 1. Intuitionistic Propositional Logic IPC plus the axiom \((A_{0}\rightarrow A_{1})\vee ...\vee (A_{n-1}\rightarrow ...
    • Neighbourhood Semantics for Graded Modal Logic 

      Chen, Jinsheng; van Ditmarsch, Hans; Greco, Giuseppe; Tzimoulis, Apostolos (Wydawnictwo Uniwersytetu Łódzkiego, 2021-07-14)
      We introduce a class of neighbourhood frames for graded modal logic embedding Kripke frames into neighbourhood frames. This class of neighbourhood frames is shown to be first-order definable but not modally definable. We ...