Abstract
We give a sufficient condition for a quasivariety K, weaker than the one found earlier by A. V. Kravchenko, A. M. Nurakunov, and the author, which ensures that K contains continuum many subquasivarieties with no independent quasi-equational basis relative to K. This condition holds, in particular, for any almost f f-universal quasivariety K.
Original language | English |
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Pages (from-to) | 514-537 |
Number of pages | 24 |
Journal | Algebra and Logic |
Volume | 58 |
Issue number | 6 |
DOIs | |
Publication status | Published - 1 Jan 2020 |
Keywords
- independent quasi-equational basis
- quasivariety
- UNIVERSAL VARIETIES
- LATTICES