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Logic: Syllogisms and Categorical Logic

Categorical syllogism structure and terms, including major premise, minor premise, and middle term.

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What is a categorical syllogism?
A deductive argument with three categorical propositions: two premises and a conclusion, containing exactly three terms.
What is the major premise?
The premise containing the major term, which is the predicate of the conclusion.
What is the minor premise?
The premise containing the minor term, which is the subject of the conclusion.
What is the conclusion in a syllogism?
The third proposition that states what logically follows from the two premises.
What is the major term?
The predicate of the conclusion, appearing in the major premise.
What is the minor term?
The subject of the conclusion, appearing in the minor premise.
What is the middle term?
The term that appears in both premises but does not appear in the conclusion.
What does the figure of a syllogism indicate?
The arrangement of the three terms in the premises, determined by whether each term is a subject or predicate.
What is the arrangement of terms in Figure 1?
The middle term is the subject of the major premise and predicate of the minor premise (M-P, S-M).
What is the arrangement of terms in Figure 2?
The middle term is the predicate of both premises (P-M, S-M).
What is the arrangement of terms in Figure 3?
The middle term is the subject of both premises (M-P, M-S).
What is the arrangement of terms in Figure 4?
The middle term is the predicate of the major premise and subject of the minor premise (P-M, M-S).
What is the mood of a syllogism?
The classification based on the types (A, E, I, or O) of the major premise, minor premise, and conclusion.
What does an A-form proposition express?
A universal affirmative: All S are P.
What does an E-form proposition express?
A universal negative: No S are P.

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