size(ChordalNet) -- size of a chordal network

i1 : R = QQ[x_0..x_3, MonomialOrder=>Lex];

i2 : I = ideal {x_0^3-x_0, x_0*x_2-x_2, x_1-x_2, x_2^2-x_2, x_2*x_3^2-x_3};

o2 : Ideal of R

i3 : N = chordalNet I;

i4 : chordalTria N;

i5 : size N

o5 = {3, 2, 2, 2}

o5 : List

i6 : N

                         2
o6 = ChordalNet{ x  => {x  - 1, x , x  - 1} }
                  0      0       0   0
                 x  => {x , x  - 1}
                  1      1   1
                 x  => {x , x  - 1}
                  2      2   2
                 x  => {x , x  - 1}
                  3      3   3

o6 : ChordalNet