Abstract
LetV be a variety of semilattice modes with associated semiringR. We prove that ifR is a bounded distributive lattice, thenV has the amalgamation property. We show that the converse is true whenV is locally finite.
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Part of this paper was written while the author was supported by a fellowship from the Alexander von Humboldt Stiftung.
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Kearnes, K.A. Semilattice modes II: the amalgamation property. Algebra Universalis 34, 273–303 (1995). https://doi.org/10.1007/BF01204785
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DOI: https://doi.org/10.1007/BF01204785