Chapter 13

Question 1

What are the two quantitative rules for syllogisms?

Answer 1

if a term is distributed in the conclusion, then it must be distributed in the premises; the middle term must be distributed at least once

Question 2

What are the three qualitative rules for syllogisms?

Answer 2

no conclusion can follow from two negative premises; if the two premises are affirmative, the conclusion must be affirmative; if either premise is negative, the conclusion must also be negative.