Article
Keywords:
lattice of convex sublattices of a lattice; congruence relation; representable congruence relation
Summary:
Let $L$ be a lattice. In this paper, corresponding to a given congruence relation $\Theta $ of $L$, a congruence relation $\Psi _\Theta $ on $CS(L)$ is defined and it is proved that
1.
$CS(L/\Theta )$ is isomorphic to $CS(L)/\Psi _\Theta $;
2.
$L/\Theta $ and $CS(L)/\Psi _\Theta $ are in the same equational class;
3.
if $\Theta $ is representable in $L$, then so is $\Psi _\Theta $ in $CS(L)$.
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