The syllogism is the content of the judgment reasoning part, and one of the question types is the "premise type", which will give a number of straightforward propositions, one or more premises and a conclusion, and the candidate is required to supplement a premise to make the conclusion valid. Many test takers are stupid and unclear about the four options when doing this kind of question, and they cannot accurately select the prerequisite items. The following Huatu public institution will tell you 2 tips for doing problems to help you intelligently solve the premise of syllogism.
1.The "3 2" principle: There are three concepts in effective syllogismal reasoning, each of which appears twice.
2.The principle of "some": when the premise contains "some", no valid conclusion can be drawn;When there is a "some" in the premise, the conclusion is also "some".
Let's take a look at a classic example problem and practice it with a trick to solve the problem.
For example, some Nanjing people don't like chili peppers, so some Nanjing people who love sweets definitely don't like chili peppers.
In order for this reasoning to be valid, which of the following must be added as a precondition?
a.All Nanjing people don't like to eat chili peppers.
b.Some Nanjing people have a sweet tooth.
c.All Nanjing people with a sweet tooth love chili peppers.
d.All Nanjing people have a sweet tooth.
Huatu Institution Answer] d. Analysis of Huatu public institutions: The two sentences of the question stem are both straightforward propositions, a premise and a conclusion, and it is required to supplement a premise to make the reasoning valid, and this topic can be judged to be a syllogism premise. First, according to the "3 2" principle: there are three concepts in effective syllogismal reasoning, each of which appears twice. The concept of "chili love" appears twice and does not need to appear again. From this, it can be excluded that the concept of "love to eat chili peppers" appears in two items A and C. Secondly, according to the principle of "some": when the premises contain "some", no valid conclusion can be drawn. The known premise contains "some", and item b also contains "some", so item b is not a required premise and is excluded. Therefore, item D is selected for this question.