Abstract:Let $CSub (\bold K)$ denote the variety of lattices generated by convex sublattices of lattices in $\bold K$. For any proper variety $\bold V$, the variety $CSub (\bold V)$ is proper. There are uncountably many varieties $\bold V$ with $CSub (\bold V)=\bold V$.
Keywords: lattice, convex sublattice, variety
AMS Subject Classification: 06B25