A characterization of tolerance-distributive tree semilattices
Ivan Chajda, Bohdan Zelinka (1987)
Czechoslovak Mathematical Journal
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Displaying similar documents to “Tolerances and orderings on semilattices”
A characterization of tolerance-distributive tree semilattices
Tolerances on semilattices.
Heleyová, Z. (1998)
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On JP-semilattices of Begum and Noor
Jānis Cīrulis (2013)
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In recent papers, S. N. Begum and A. S. A. Noor have studied join partial semilattices (JP-semilattices) defined as meet semilattices with an additional partial operation (join) satisfying certain axioms. We show why their axiom system is too weak to be a satisfactory basis for the authors' constructions and proofs, and suggest an additional axiom for these algebras. We also briefly compare axioms of JP-semilattices with those of nearlattices, another kind of meet semilattices with a...
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