由于语词存在模糊性,使得包含这种语词的命题也具有模糊性。在不同的语境中,同一模糊命题具有不同的真值,它们可以划分为“极”“很”“比较”和“略微”四个等级,从而表现为相对的精确性。在一定的语境中,同一个模糊命题也可以表现为隶属度为1的绝对的精确性。在一些语境中,同一个精确的命题还可以表现为真值不同的模糊命题。
As words and expressions are fuzzy, the proposition with these fuzzy words and expressions is also fuzzy. In different context, the same proposition has different values, which can be divided into four scales : extreme, quite, obvious and little, and can show the relative exactness. In certain context, the same proposition can also show its absolute exactness with μ = 1. In some contexts, the same exact proposition even can become the fuzzy one with different values.