5 articles in this issue
María Manzano, Manuel Crescencio Moreno
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 binary relation between objects wh... see more
Zofia Kostrzycka
We prove that there is infinitely many tabular modal logics extending KB.Alt(2) which have interpolation.
Berhanu Assaye, Mihret Alemneh, Gerima Tefera
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 prove the equivalency of B-algebra ... see more
Rafal Gruszczynski, Andrzej Pietruszczak
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 inspired by the Grzegorczyk’s syste... see more
Mateusz Klonowski
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 Post-style completeness theorem fo... see more