Qualitative Rules for Categorical Syllogisms

Question 1

What’s Rule V?

Answer 1

No conclusion can follow from two negative premises. When broken, you are said to commit the Fallacy of Exclusive Premises.

Question 2

What’s Rule VI?

Answer 2

If the Two Premises are Affirmative, the Conclusion Must Also be Affirmative. Breaking the rule is known as the Fallacy of Drawing a Negative Conclusion From Affirmative Premises.

Question 3

What’s Rule VII?

Answer 3

If Either Premise is Negative, the Conclusion Must Also be Negative. Breaking this rule is known as committing the Fallacy of Drawing an Affirmative Conclusion from a Negative Premise.