Relation products of congruences and factor congruences

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Relation products of congruences and factor congruences. (English). Czechoslovak Mathematical Journal, vol. 41 (1991), issue 1, pp. 155-159

References:

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[4] Gumm H.-P.: Geometrical methods in congruence modular algebras. Memoirs Amer. Math. Soc. Nr. 286-Providence 1983. MR 0714648 | Zbl 0547.08006

[5] Hagemann J.: Congruences on products and subdirect products of algebras. Preprint Nr. 219, TH-Darmstadt 1975.

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