IRREGULAR QUASIVARIETIES OF COMMUTATIVE BINARY MODES
K. Matczak, Anna B. Romanowska · International Journal of Algebra and Computation · 2005
In an earlier paper the authors described the isomorphic lattices of quasivarieties of commutative quasigroup modes and of cancellative commutative binary modes. This paper extends the earlier result, and provides a description of the lattice of some irregular quasivarieties of commutative binary modes, i.e. quasivarieties that do not contain semilattices.