digraph Lattice {
    compound = true;
    // Define nodes
    splines=false;
    node [shape=circle, style=filled];
    nodesep=0.6;

    TOP [label=<<B>⊤</B >>, fillcolor=black, fontcolor=white];
    BOT [label=<<B>⊥</B>>, fillcolor=black, fontcolor=white];

    // ----------------------
    // Integers
    INT_TOP [label=<<B>⊤</B >:int>, fillcolor=lightblue, shape=oval];
    INT_BOT [label=<<B>⊥</B>:int>, fillcolor=lightblue, shape=oval];

    INT_HI    [label="max < min" , fillcolor=lightblue, shape=oval];
    INT_XBOOL [label="1...0", fillcolor=lightblue, shape=oval];
    INT_CON   [label="constants...", fillcolor=lightblue, shape=oval];
    INT_CON0  [label="0", fillcolor=lightblue];
    INT_CON1  [label="1", fillcolor=lightblue];
    INT_BOOL  [label="0...1", fillcolor=lightblue,shape=oval];
    INT_LO    [label="max > min" , fillcolor=lightblue, shape=oval];

    TOP        -> INT_TOP;
    INT_TOP    -> INT_HI;
    INT_HI     -> INT_XBOOL;
    INT_XBOOL  -> INT_CON0;
    INT_XBOOL  -> INT_CON1;
    INT_HI     -> INT_CON;
    INT_CON0   -> INT_BOOL;
    INT_CON1   -> INT_BOOL;
    INT_BOOL   -> INT_LO;
    INT_CON    -> INT_LO;
    INT_LO     -> INT_BOT;
    INT_BOT    -> BOT;

    INT_CON0 -> INT_CON1 -> INT_CON [style=invis];


    // Additional customization
    {rank=same; TOP}
    {rank=same; INT_TOP; }
    {rank=same; INT_CON; INT_CON0; INT_CON1;
    }
    {rank=same; INT_BOT; }
    {rank=same; BOT;}
}