Homework SourseValid by the Law of Contraposition or Valid by the Law of De
Valid by the Law of Contraposition or
Valid by the Law of Detachment
| Valid by the Law of Contraposition or | ||
| Valid by the Law of Detachment |
Solution
Given Condition is p->q and ~q->~p
If p is ture and q is ture then p->q is also valid
If p is ture and q is ture then ~q->~p is also valid which is said by law of contraposition.
Hence above statment is vaild according to the above table.Which is contraposition
| conditional | contraposition | ||
| p | q | p->q | ~q->~p |
| T | T | T | T |
| T | F | F | F |
| F | T | T | T |
| F | F | T | T |
