Isotone analogs of results by Mal'tsev and Rosenberg.
Larose, Benoit (2005)
Beiträge zur Algebra und Geometrie
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Larose, Benoit (2005)
Beiträge zur Algebra und Geometrie
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Bauer, Friedrich W. (2002)
Georgian Mathematical Journal
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Grzegorz Bancerek (2012)
Formalized Mathematics
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In the paper the semantics of MML Query queries is given. The formalization is done according to [4]
Alfred Geroldinger (1997)
Colloquium Mathematicae
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Litvinov, N.V. (2000)
Siberian Mathematical Journal
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Litvinov, N.V. (2000)
Siberian Mathematical Journal
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Polyakov, E.A. (2001)
Siberian Mathematical Journal
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Mohamed Bekkali, Driss Zhani (2004)
Revista Matemática Complutense
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We characterize free poset algebras F(P) over partially ordered sets and show that they can be represented by upper semi-lattice algebras. Hence, the uniqueness, in decomposition into normal form, using symmetric difference, of non-zero elements of F(P) is established. Moreover, a characterization of upper semi-lattice algebras that are isomorphic to free poset algebras is given in terms of a selected set of generators of B(T).
Yong Min Li, Wang Guo-jun (1997)
Commentationes Mathematicae Universitatis Carolinae
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In this paper, localic upper, respectively lower continuous chains over a locale are defined. A localic Katětov-Tong insertion theorem is given and proved in terms of a localic upper and lower continuous chain. Finally, the localic Urysohn lemma and the localic Tietze extension theorem are shown as applications of the localic insertion theorem.