
doi: 10.1007/bf02367355
The author proves that the lattice of quasivarieties contained in the quasivariety of torsion-free groups satisfying the identity \(\forall x\forall y\;([x^2,y^2]=1)\) has the cardinality of the continuum.
Lattices of varieties, Solvable groups, supersolvable groups, lattices of quasivarieties, metabelian groups, Quasivarieties, Quasivarieties and varieties of groups
Lattices of varieties, Solvable groups, supersolvable groups, lattices of quasivarieties, metabelian groups, Quasivarieties, Quasivarieties and varieties of groups
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