Which of the following propositions are so related that if one of them is…
2025
Which of the following propositions are so related that if one of them is true, the other must be false, although they can both be false? A. All novels are books. B. Some novels are not books. C. No novels are books. D. Some novels are books.
- A.
B and D Only
- B.
C and D Only
- C.
A and C Only
- D.
A and B Only
Attempted by 11 students.
Show answer & explanation
Correct answer: C
Correct Answer: C A: All novels are books (universal affirmative) C: No novels are books (universal negative) They are contraries - if one is true, the other must be false, but both can be false.