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一般逻辑教材在谈到假言命题时,总是以“如果……就……”“只有……才……”为其典型的语言形式,这无疑是正确的,但却不能令人满足,且容易使初学者误解,以为假言命题的语言形式就是这样的贫乏。其实,在自然语言里,假言命题的联结词(特别是表示充分条件的)和表述样式是非常丰富的。这篇小文将通过具体的语言材料来展示汉语中丰富的假言联结词。先看充分条件的假言联结词(下例字下有横线者,与“如
When it comes to the hypothesis of propositions, the general logic textbook is always in the correct linguistic form of “if ... ... ... ... ... ... only ... ... ... ...”, which is undoubtedly correct but unsatisfactory, And easily for beginners to misunderstand, that the language form of hypothetical proposition is such a lack of. In fact, in natural language, the hypothetical conjunctions (especially those expressing sufficient conditions) and expressions are very rich. This essay will showcase a wealth of hypothetical conjunctions in Chinese through specific language materials. Look at the fullness of the hypothetical conjunctions (under the words underlined with ", such as