Abstract
In this note, a model-theoretic proof is presented of Jónsson's Theorem (cf. Grätzer 1979), clarifying its logical background:
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References
C. C. Chang andH. J. Keisler, 1973,Model Theory, North-Holland, Amsterdam.
G. Grätzer, 1979,Universal Algebra, Springer, New York.
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Van Benthem, J. A note on Jónsson's theorem. Algebra Universalis 25, 391–393 (1988). https://doi.org/10.1007/BF01229985
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DOI: https://doi.org/10.1007/BF01229985