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Chajda, Ivan ; Rachůnek, Jiří
Relational characterizations of permutable and $n$-permutable varieties. (English). Czechoslovak Mathematical Journal, vol. 33 (1983), issue 4, pp. 505-508
MSC: 08A30 | MR 721079 | Zbl 0545.08011 | DOI: 10.21136/CMJ.1983.101905
References:
[1] J. Hageman A. Mitschke: On $n$-permutable congruences. Algebra Univ. 3 (1973), 8-12. DOI 10.1007/BF02945100 | MR 0330010
[2] G. Grätzer: Universal Algebra. N. Y. 1968. MR 0248066
[3] A. I. Mal'cev: On the general theory of algebraic systems. (Russian), Math. Sb. 35 (1954), 3-20. MR 0065533
[4] J. Rachůnek: Quasi-orders of algebras. Časop. pěst. mat. 104 (1979), 327-337. MR 0553167
[5] H. Werner: A Mal'cev condition for admissible relations. Algebra Univ. 3 (1973), 263. DOI 10.1007/BF02945126 | MR 0330009 | Zbl 0276.08004
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