-Lattices of varieties of algebras of different types
Alfonz Haviar (1993)
Czechoslovak Mathematical Journal
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Displaying similar documents to “Permutability of congruences in varieties with idempotent operations”
-Lattices of varieties of algebras of different types
Compact universal relation in varieties with constants
Ivan Chajda, Jaromír Duda (1997)
Czechoslovak Mathematical Journal
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Compact elements in the lattice of varieties
Jaroslav Ježek, Václav Slavík (2005)
Mathematica Bohemica
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We prove that the lattice of varieties contains almost no compact elements.