| 单词 | 否定命题 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔truth-function〕A compound proposition, such as a conjunction or negation, whose truth-value is always determined by the truth-values of the components.真值函数：其真值总是由成分真值决定的复合命题，如综合命题或否定命题美国传统 |
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