1, the term refers to predicate, that is, the concept of predicate as a conclusion.

2, this term refers to the concept that appears in both premises, mainly as an intermediary between secondary events and major events.

3. The secondary term refers to the concept as the main term of the conclusion.

Syllogism is the abbreviation of blunt syllogism, which is an indirect reasoning. On the premise that two outspoken propositions contain a common term (middle term), another outspoken proposition is deduced as a conclusion. In the premise of syllogism, the concept that appears twice is called the middle term, the predicate term is called the big word, and the subject term is called the small word.