所有特称否定命题都不能换位吗？
否定命题标示出来。
在哲学史和逻辑史上，有学者认为否定命题是某种偶然的、副次的东西。
In the history of philosophy and logic, some scholars regard negative proposition as something occasional and subsidiary.
本文认为否定命题作为一种独特的思维形式，有着重要的逻辑功能和认识价值。
This paper suggests that the negative proposition, as a unique form of thinking, has its important logical function and cognitive value.
汉语的否定句对应于逻辑上直言否定命题和复合命题中的负命题两种不同类型的命题。
Negative sentences in Chinese are corresponding to two kinds of different propositions in logic. They are categorical negative proposition and the negative proposition of compound proposition.
在否定命题下，大多数预设仍保持为一个常值，但也有少数预设的否定命题不能够保持为一个常值。
Semantic presupposition can be cancelled and, mostly, stand as a fixed proposition under the negation test, but some presuppositions fail to keep consistent under negation test.
主词，主项，主概念：逻辑命题中的一个词，它表示肯定或否定的论题。
Logic The term of a proposition about which something is affirmed or denied.
解释命题、命题逻辑和其涉及的否定、合取、析取、蕴涵和等价等定义，同时分析它们的形式和用法。
This paper explains the proposition and propositional logic, giving the definitions, forms and usages of negation, conjunction, disjunction, implication and equivalence.
为此，定义了命题公式的正变换和负变换，以便分离一个文字与其否定的语义联系。
To this end, the positive and negative transformations of propositional formulas are defined such that the semantic link between a literal and its negation is split.
汉语表达肯定命题的否定句式的实质是连用两次否定形式并表达一个肯定意义。
The essence of negative sentence pattern to express affirmative proposition is to link two negative forms together for a positive sense.
外部否定主要包括对句子情态的否定和对命题的合适性条件的否定，后者又称元语言否定或语用否定。
External negation mainly includes the negation of modality and felicity condition of the sentences. The latter is also named meta-linguistic negation or pragmatic negation.
实现对否定句的实际状态模拟是受到语用条件的限制的，否定并不是对否定辖域命题内容的反向推理。
The achievement of simulation of actual state of affair was constrained by the pragmatic factors. Negation was not the opposite inference of the propositional contents within the negation scope.
在经典经验论中，诸如“所有的球都是红色”这类命题的真实性都通过对球的观察而受到评判。所观察到的任何一个非红色球都会毫不含糊地否定曾经提出的归纳命题。
In classical empiricism, the truth of "all balls are red," for example, is assessed by inspecting balls; any observation of a non red ball refutes unequivocally the proposed generalization.
在经典经验论中，诸如“所有的球都是红色”这类命题的真实性都通过对球的观察而受到评判。所观察到的任何一个非红色球都会毫不含糊地否定曾经提出的归纳命题。
In classical empiricism, the truth of "all balls are red," for example, is assessed by inspecting balls; any observation of a non red ball refutes unequivocally the proposed generalization.
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