1996
DOI: 10.3233/fi-1996-283401
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Rough Sets Through Algebraic Logic

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Cited by 120 publications
(98 citation statements)
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“…e.g. [1,18,4,23,24]). Sound and complete sequent calculi have been introduced for the logics naturally associated with some of these classes of algebras [23,24].…”
Section: Introductionmentioning
confidence: 99%
“…e.g. [1,18,4,23,24]). Sound and complete sequent calculi have been introduced for the logics naturally associated with some of these classes of algebras [23,24].…”
Section: Introductionmentioning
confidence: 99%
“…This paper continues a line of investigation started in [9] and aimed at introducing sequent calculi for the logics of varieties of 'rough algebras', introduced and discussed in [1,19]. The 'rough algebras' considered in the present paper are nondistributive (i.e.…”
Section: Introductionmentioning
confidence: 87%
“…(Birkhoff's theorem, main theorem of FCA) Any complete lattice L is isomorphic to the concept lattice P + of some formal context P. An enriched formal context is a tuple F = (P, R , R ) such that P = (A, X, I) is a formal context, and R ⊆ A × X and R ⊆ X × A are I-compatible relations, that is,R (0) [x] (resp. R (0) [a]) and R(1) [a] (resp. R(1) [x]) are Galois-stable for all x ∈ X and a ∈ A.…”
mentioning
confidence: 99%
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“…Lower and upper approximations, rough equalities are defined over it and topological algebraic semantics can be formulated over roughly equivalent objects (or subsets of attributes) through extra operations. Duality theorems, proved for pre-rough algebras defined in [14], are specifically for structures relation isomorphic to the approximation space (O, σ). This is also true of the representation results in [15,16,17].…”
Section: Introductionmentioning
confidence: 99%