Covers in lattices of quasivarieties and independent axiomatizability
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Publication:1255976
DOI10.1007/BF01669475zbMath0403.08009MaRDI QIDQ1255976
Publication date: 1977
Published in: Algebra and Logic (Search for Journal in Brave)
Full work available at URL: https://eudml.org/doc/186983
Related Items (28)
Quasi-identities of free 2-nilpotent groups ⋮ Finite pseudo-Boolean and topo-Boolean algebras not having an independent basis of quasi-identities ⋮ Minimal coorder of pseudo-Boolean and topo-Boolean algebras having no finite basis of quasi-identities ⋮ Bases of quasiidentities of finite distributive p-algebras ⋮ On algebras of the variety \(\mathcal B^1_1\) ⋮ Structure of lattices of varieties and lattices of quasivarieties: Similarity and difference. II ⋮ Representability types of varieties and Mal'tsev strict conditions ⋮ Quasivarieties of graphs ⋮ Quasiequational bases of Cantor algebras ⋮ Ultraproducts preserve finite subdirect reducibility ⋮ Canonical decompositions in complete lattices ⋮ On the quasivarieties generated by finite semigroups ⋮ Quasivarieties of unary algebras with a finite number of cycles ⋮ Remarks on NQ-critical commutative unary algebras ⋮ Quasivarieties of Graphs and Independent Axiomatizability ⋮ Quasiidentities of finite unary algebras ⋮ Lattices of topologies of unary algebras of the variety \(\mathcal A_{1,1}\) ⋮ Semigroups embeddable in hyperplane face monoids. ⋮ On quasi-equational bases for differential groupoids and unary algebras ⋮ On the \(\omega\)-independence of quasivarieties of nilpotence groups ⋮ Structure of quasivariety lattices. I: Independent axiomatizability ⋮ Structure of quasivariety lattices. II: Undecidable problems ⋮ Open questions related to the problem of Birkhoff and Maltsev ⋮ \( \omega \)-independent bases for quasivarietes of torsion-free groups ⋮ Independent axiomatizability of sets of sentences ⋮ Existence of independent quasi-equational bases ⋮ Quasiidentities of two-element algebras ⋮ Primitive lattice varieties
Cites Work
- Splitting algebras and a weak notion of projectivity
- Intervals in the lattice of varieties
- Covering elements in the lattice of varieties of algebras
- Projective lattices and bounded homomorphisms
- Varieties of implicative semi-lattices. II
- On Implicational Completeness
- Algebras Whose Congruence Lattices are Distributive.
- Equational Classes of Lattices.
- Subcartesian Products of Finitely many Finite Algebras
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