Syllogism Rules I-III Syllogism rules IV-VII
100
There must be 4 and only 4 terms in a syllogism
What does Rule I say?
100
The middle term must be distributed at least once
What does Rule IV say?
200
The middle term must not appear in the conclusion
What does Rule II say?
200
If two premises are affirmative, the conclusion must also be affirmative.
What does rule VI say?
300
If a term is distributed in the conclusion then it must be distributed in the premises
What does Rule III say?
300
If either premise is negative, the conclusion must be negative
What does Rule VII say?
400
The fallacy of equivocation and the fallacy of four terms
What are the two fallacies of rule I?
400
No conclusion can follow from 2 negative premises
What does rule V say?
500
The fallacy of illicit major and the fallacy of illicit minor
What are the two fallacies associated with Rule III?
500
Rules V-VII
Which rule numbers are the qualitative rules?






Logic Chapter 11-13 Review 2

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