A note on congruence systems of MS-algebras

M. Campercholi; Diego Vaggione

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Displaying similar documents to “A note on congruence systems of MS-algebras”

Semiregularity of congruences implies congruence modularity at 0

Ivan Chajda (2002)

Czechoslovak Mathematical Journal

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We introduce a weakened form of regularity, the so called semiregularity, and we show that if every diagonal subalgebra of $𝒜 \times 𝒜$ is semiregular then $𝒜$ is congruence modular at 0.

Trapezoid lemma and congruence distributivity

Ivan Chajda, Gábor Czédli, Eszter K. Horváth (2003)

Mathematica Slovaca

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Congruence restrictions on axes

Jaromír Duda (1992)

Mathematica Bohemica

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We give Mal’cev conditions for varieties 4V4 whose congruences on the product $A \times B, A, B \in V$ , are determined by their restrictions on the axes in $A \times B$ .