Browsing Bulletin of the Section of Logic 47/2 (2018) by Title
Now showing items 3-5 of 5
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Grzegorczyk Algebras Revisited
(Wydawnictwo Uniwersytetu Łódzkiego, 2018)We provide simple algebraic proofs of two important facts, due to Zakharyaschev and Esakia, about Grzegorczyk algebras. -
Pseudo-BCH Semilattices
(Wydawnictwo Uniwersytetu Łódzkiego, 2018)In this paper we study pseudo-BCH algebras which are semilattices or lattices with respect to the natural relations ≤; we call them pseudo-BCH join-semilattices, pseudo-BCH meet-semilattices and pseudo-BCH lattices, ... -
Variable Sharing in Substructural Logics: an Algebraic Characterization
(Wydawnictwo Uniwersytetu Łódzkiego, 2018)We characterize the non-trivial substructural logics having the variable sharing property as well as its strong version. To this end, we find the algebraic counterparts over varieties of these logical properties.