Exam-style question
Try this first
For which input values is (P OR Q) AND NOT P true?.
- A.P = false, Q = false
- B.P = false, Q = true
- C.P = true, Q = false
- D.P = true, Q = true
Model answer
What a good answer should say
- P = false, Q = true
Explanation
Why this works
NOT P must be true, so P must be false. P OR Q must also be true, so Q must be true.
Common mistake
No common mistake is linked to this question yet.