通过对比分析蕴含和预设二概念的使用范围和鉴定方法、区别及联系,阐述蕴含的逻辑分析中的语义问题。通过一例句初步提取蕴含,然后进行修改,最后确定了一种新的蕴含提取方法,以此说明在主观判断类的语句中,提取蕴含要统一视角和命题表述。并且,在句子含一人称代词的时候,叙述由说话者发出,这时分析起来蕴涵和预设是重叠的。 By comparing and analyzing the scope of application and appraisal methods of the implied and preconceived concepts, the differences and connections, the semantic issues involved in the logical analysis are expounded. Through a preliminary extraction of implication from an example sentence, and then modification, a new implicit extraction method is finally established, which shows that in the sentences of subjective judgment, the extraction contains a unified perspective and propositional expression. And, when the sentence contains a personal pronoun, the narration is given by the speaker, at which point the analysis implicates and presupposes overlap.