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digraph Lattice {
compound = true;
// Define nodes
splines=false;
node [shape=circle, style=filled];
nodesep=0.6;
// ----------------------
// Integers
INT_TOP [label=<<B>⊤</B >:int>, fillcolor=lightblue, shape=oval];
INT_BOT [label=<<B>⊥</B>:int>, fillcolor=lightblue, shape=oval];
INT_MIN [label="-n" , fillcolor=lightblue];
INT_MINDOTS [label="...", fillcolor=lightblue shape=oval];
INT_MINUS [label="-1" , fillcolor=lightblue];
INT_ZERO [label="0" , fillcolor=lightblue];
INT_PLUS [label="1" , fillcolor=lightblue];
INT_MAXDOTS [label="...", fillcolor=lightblue, shape=oval];
INT_MAX [label="+n" , fillcolor=lightblue];
INT_TOP -> INT_MIN;
INT_TOP -> INT_MINDOTS;
INT_TOP -> INT_MINUS;
INT_TOP -> INT_ZERO;
INT_TOP -> INT_PLUS;
INT_TOP -> INT_MAXDOTS;
INT_TOP -> INT_MAX;
INT_MIN -> INT_BOT;
INT_MINDOTS -> INT_BOT;
INT_MINUS -> INT_BOT;
INT_ZERO -> INT_BOT;
INT_PLUS -> INT_BOT;
INT_MAXDOTS -> INT_BOT;
INT_MAX -> INT_BOT;
INT_MIN -> INT_MINDOTS -> INT_MINUS -> INT_ZERO -> INT_PLUS -> INT_MAXDOTS -> INT_MAX [style=invis];
// Additional customization
{rank=same; INT_MIN; INT_MINDOTS; INT_MINUS; INT_ZERO; INT_PLUS; INT_MAXDOTS; INT_MAX; }
}
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