元素

可达集R(S_i)

前因集A(S_i)

R(S_i)∩A(S_i)

S₁

{1}

{1, 5, 6, 10, 12}

{1}

S₂

{2}

{2, 3, 4}

{2}

S₃

{2, 3, 4}

{3}

{3}

S₄

{2, 4}

{3, 4}

{4}

S₅

{1, 5, 7}

{5}

{5}

S₆

{1, 6, 8, 9}

{6, 10, 12}

{6}

S₇

{7}

{5, 7, 10, 11, 12}

{7}

S₈

{8, 9}

{6, 8, 9, 10, 12}

{8, 9}

S₉

{8, 9}

{6, 8, 9, 10, 12}

{8, 9}

S₁₀

{1, 6, 7, 8, 9, 10, 11, 12, 13}

{10, 12}

{10, 12}

S₁₁

{7, 11}

{10, 11, 12}

{11}

S₁₂

{1, 6, 7, 8, 9, 10, 11, 12, 13}

{10, 12}

{12}

S₁₃

{13}

{10, 12, 13}

{13}