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प्रश्न
Using truth table examine whether the following statement pattern is tautology, contradiction or contingency `(p^^~q) harr (p->q)`
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उत्तर
|
`p` |
`q` |
`~q` |
`p^^~q` |
`p->q` |
`(p^^~q)harr(p->q)` |
| T | T | F | F | T | F |
| T | F | T | T | F | F |
| F | T | F | F | T | F |
| F | F | T | F | T | F |
All the entries in the last column of the above truth table are F.
`(p^^~q) harr (p->q)` is is a contradiction
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