In the Sierpinski space {0,1} with open sets {∅, {1}, {0,1}} the specialization order is the natural one (0 ≤ 0, 0 ≤ 1, and 1 ≤ 1).
Sierpinski空间{0,1}带有开集{∅, {1}, {0,1}}，特殊化次序是自然次序 (0 ≤ 0, 0 ≤ 1和1 ≤ 1)。