Results 21 to 30 of about 2,874 (140)

Convergence Classes of L‐Filters in (L, M)‐Fuzzy Topological Spaces

open access: yesJournal of Mathematics, Volume 2021, Issue 1, 2021., 2021
An (L, M)‐fuzzy topological convergence structure on a set X is a mapping which defines a degree in M for any L‐filter (of crisp degree) on X to be convergent to a molecule in LX. By means of (L, M)‐fuzzy topological neighborhood operators, we show that the category of (L, M)‐fuzzy topological convergence spaces is isomorphic to the category of (L, M ...
Ting Yang   +5 more
wiley   +1 more source

Preserving Filtering Unification by Adding Compatible Operations to Some Heyting Algebras [PDF]

open access: yes, 2016
We show that adding compatible operations to Heyting algebras and to commutative residuated lattices, both satisfying the Stone law ¬x ⋁ ¬¬x = 1, preserves filtering (or directed) unification, that is, the property that for every two unifiers there is a ...
Dzik, Wojciech, Radeleczki, Sándor
core   +2 more sources

Epistemic Updates on Algebras [PDF]

open access: yesLogical Methods in Computer Science, 2013
We develop the mathematical theory of epistemic updates with the tools of duality theory. We focus on the Logic of Epistemic Actions and Knowledge (EAK), introduced by Baltag-Moss- Solecki, without the common knowledge operator.
Alexander A Kurz   +1 more
doaj   +1 more source

On completeness of reducibility candidates as a semantics of strong normalization [PDF]

open access: yesLogical Methods in Computer Science, 2012
This paper defines a sound and complete semantic criterion, based on reducibility candidates, for strong normalization of theories expressed in minimal deduction modulo \`a la Curry.
Denis Cousineau
doaj   +1 more source

Big Data Mining: a Computer-Oriented Method of Working with the Semantics of Assertions

open access: yesСовременные информационные технологии и IT-образование, 2021
When analyzing large amounts of data with the involvement of experts of subject domain, the problem of knowledge representation arises, this problem lies in describing the semantic content of judgments with their subsequent formalization, automated ...
Galina Goremykina
doaj   +1 more source

Dyck algebras, interval temporal logic and posets of intervals [PDF]

open access: yes, 2015
We investigate a natural Heyting algebra structure on the set of Dyck paths of the same length. We provide a geometrical description of the operations of pseudocomplement and relative pseudocomplement, as well as of regular elements. We also find a logic-
Ferrari, Luca
core   +2 more sources

Dualities and dual pairs in Heyting algebras [PDF]

open access: yes, 2010
We extract the abstract core of finite homomorphism dualities using the techniques of Heyting algebras and (combinatorial) categories.Comment: 17 pages; v2: minor ...
A. Pultr   +4 more
core   +4 more sources

De Morgan Semi-Heyting and Heyting Algebras [PDF]

open access: yesNew Trends in Algebras and Combinatorics, 2020
9 pages, 4 figures, A revision of an earlier version in ...
openaire   +2 more sources

A Note on Regular De Morgan Semi-Heyting Algebras

open access: yesDemonstratio Mathematica, 2016
The purpose of this note is two-fold. Firstly, we prove that the variety RDMSH1 of regular De Morgan semi-Heyting algebras of level 1 satisfies Stone identity and present (equational) axiomatizations for several subvarieties of RDMSH1.
Sankappanavar Hanamantagouda P.
doaj   +1 more source

Overlap Algebras: a Constructive Look at Complete Boolean Algebras [PDF]

open access: yes, 2020
The notion of a complete Boolean algebra, although completely legitimate in constructive mathematics, fails to capture some natural structures such as the lattice of subsets of a given set.
Ciraulo, Francesco, Contente, Michele
core   +2 more sources

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