Chapter 5 Categorical Syllogisms Flashcards
What is a syllogism?
A deductive argument with exactly two premises and one conclusion.
What is the criteria to be defined as a categorical syllogism?
- The Argument is a syllogism
- Both Premises and the Conclusion are categorical propositions.
- The premises and conclusion contain exactly 3 different terms between them.
- Each term appears twice in different propositions.
What is the Major Term?
The term that occurs as the predicate of the conclusion and in one of the premises.
What is the Major Premise?
The premise in which the major term occurs.
What is the Minor Term?
The term that occurs as the subject of the conclusion and in one of the premises.
What is the Minor Premise?
The premise in which the minor term occurs.
What is the Middle Term?
The term that occurs in both premises but does not occur anywhere in the conclusion.
How do you put a Categorical Syllogism into standard form?
List in Order (Major Premise, Minor Premise, Conclusion)
Both premises and the conclusion are standard-form-cateforical propositions.
The two occurrences of each term are the same
Each term has the same meaning in each of its occurences.
What is the mood of a categorical syllogism?
The letter names of the constituent propositions of a categorical sullogism in the following order: major premise, minor premise, conclusion.
What is figure 1?
Figure 1: the middle term occupies the subject position in the major premise and the predicate position in the minor premise.
What is figure 2?
The middle term occupies the predicate positions in both premises.
What is figure 3?
The middle term occupies the subject position in both premises.
What is figure 4?
The middle term occupies the predicate position in the major premise and the subject position in the minor premise.
What are all the Valid forms of Categorical Syllogisms?
EIO - All Figures
EAE - 1 and 2
AII - 1 and 3
AEE - 2 and 4
