true value的用法和樣例：
例句
- Hexagrams form a perfect double-value logic system, in which every hexagram is equal to a true value table.
易卦是一種完備的二值邏輯體系，每一個(gè)卦象就是一組真值表。 - In two-dimensional presuppositional logic, the evaluation of each sentence contains the truth value of the sentence and the presupposition value of the sentence.
在二維預設邏輯中，每個(gè)句子的賦值是二維的，包含句子本身的真值和句子預設的真值。
