Hypotheticalreasoning 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。
2
The assumption that the semantics of complex sentence, the analysis of extraordinary assumptions and hypotheticalreasoning, and complex sentences against the facts;