Which of the following truth tables is correct?
?
?
p q p or q T T T T F F F F F
A. ?
| p | q | p or q |
| T | T | T |
| T | F | F |
| F | F | F |
B. ?
| p | q | p and q |
| T | T | T |
| F | T | F |
| T | F | T |
C. ?
| p | q | Not(p) and Not(q) |
| T | T | F |
| F | F | T |
| F | T | F |
D. ?If p and q are true, then at least p or q is true.
E. ?If p or q is false, then either p or q is false.
Answer: C
Mathematics
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