Abstract
We find necessary and sufficient conditions for any two congruences on an antigroup of finite rank to be permutable.
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Derech, V.D. On Permutable Congruences on Antigroups of Finite Rank. Ukrainian Mathematical Journal 56, 420–426 (2004). https://doi.org/10.1023/B:UKMA.0000045687.63982.01
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DOI: https://doi.org/10.1023/B:UKMA.0000045687.63982.01