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Chajda, Ivan
Every at most four element algebra has a Mal'cev theory for permutability. (English). Mathematica Slovaca, vol. 41 (1991), issue 1, pp. 35-39
MSC: 08A30, 08B05 | MR 1094982 | Zbl 0779.08001
References:
[1] GUMM H.-P.: Is there a Maľcev theory for single algebras?. Аlgebra univ., 8, 1978, 320-329. MR 0472647
[2] KOREC I.: А ternary function for distributivity and permutability of an equivalence lattice. Proc. Аmer. Math. Soc., 69, 1978, 8-10. MR 0472648 | Zbl 0382.08004
[3] MAĽCEV A. I.: On the general theory of algebraic systems. Mat. Sboгník., 35, 1954, 3-20. MR 0065533
[4] PIXLEY A. F.: Distгibutivity and peгmutability of congruence relations in equational classes of algebras. Proc. Amer. Math. Soc., 14, 1963, 105-109. MR 0146104
[5] PIXLEY A. F.: Local Maľcev conditions. Canad. Math. Bull., 15, 1972, 559-568. MR 0309837 | Zbl 0254.08009
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