Traditional logic and modern logic have some defects in analyzing the hypothetical proposition of natural language.
传统逻辑和模态逻辑在分析自然语言假言命题方面都存在缺陷。
Hypothetical reasoning is a reasoning that premise has a proposition and bases on the relation of proposition of protasis and apodosis to made a conclusion.
假言推理是前提中有一个为假言命题，并且根据假言命题前件与后件之间的关系而推出结论的推理。
Undefined truth-values in the square of opposition cannot be used as a simple proposition in hypothetical syllogisms vaguely.
对当关系中的真假不定不能看作是一简单命题用于假言三段论。
Undefined truth-values in the square of opposition cannot be used as a simple proposition in hypothetical syllogisms vaguely.
对当关系中的真假不定不能看作是一简单命题用于假言三段论。
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