Results 31 to 40 of about 3,079 (232)

Narrow boolean algebras

open access: yesAnnals of Pure and Applied Logic, 1985
Let \(\kappa\) be the cofinality of \(2^{\aleph_ 0}\). There exists a Boolean algebra B of cardinality \(\kappa\) with the property that every subset of B of size \(\kappa\) contains two elements a and b such that ...
Robert Bonnet, Saharon Shelah
openaire   +2 more sources

On the Sperner property and Gorenstein Algebras Associated to Matroids [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2012
We introduce a certain class of algebras associated to matroids. We prove the Lefschetz property of the algebras for some special cases. Our result implies the Sperner property for the Boolean lattice and the vector space lattice.
Toshiaki Maeno, Yasuhide Numata
doaj   +1 more source

Computably enumerable boolean algebras [PDF]

open access: yes, 2018
We study computably enumerable boolean algebras, focusing on Stone duality and universality phenomena. We show how classical Stone duality specializes to c.e. boolean algebras, giving a natural bijection between c.e.
Tran, Ying-Ying
core   +1 more source

Tense Operators on BL-algebras and Their Applications

open access: yesBulletin of the Section of Logic, 2021
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 and tense Boolean algebras are investigated ...
Akbar Paad
doaj   +1 more source

Depth of Boolean Algebras

open access: yesNotre Dame Journal of Formal Logic, 2011
We prove a Theorem about the relationship between the Depth of the ultraproduct of Boolean algebras, divided by an ultrafilter, and the products of the depths of each component. This answers (partly) an open problem of Monk.
Shimon Garti, Saharon Shelah
openaire   +3 more sources

Fuzzy Weak Regular, Strong and Preassociative Filters in Residuated Lattices

open access: yesFuzzy Information and Engineering, 2014
In this paper, the notions of fuzzy weak regular, strong and preassociative filters are introduced with some properties of them investigated. In particular, under the context of Glivenko algebras, fuzzy weak regular filters and regular ones are ...
Wei Yang
doaj   +1 more source

Axiomatizing complex algebras by games [PDF]

open access: yes, 2001
Submitted ...
Mikulas, S   +5 more
core   +1 more source

A Note on 3×3-valued Łukasiewicz Algebras with Negation

open access: yesBulletin of the Section of Logic, 2021
In 2004, C. Sanza, with the purpose of legitimizing the study of n × m-valued Łukasiewicz algebras with negation (or NSn×m-algebras) introduced 3 × 3-valued Łukasiewicz algebras with negation.
Carlos Gallardo, Alicia Ziliani
doaj   +1 more source

Relation algebras with n-dimensional relational bases [PDF]

open access: yes, 2000
Accepted ...
Hirsch, R, Hodkinson, I
core   +1 more source

Lie Triple Derivations on 𝒥-Subspace Lattice Algebras

open access: yesAbstract and Applied Analysis, 2014
We describe the structure of Lie triple derivations on 𝒥-subspace lattice algebras. The results can be applied to atomic Boolean subspace lattice algebras and pentagon subspace lattice algebras, respectively.
Ting Wang, Fangyan Lu
doaj   +1 more source

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