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प्रश्न
Prove that the following statement pattern is a contradiction.
(p ∧ q) ∧ ~p
उत्तर
| p | q | ~p | p∧q | (p∧q)∧~p |
| T | T | F | T | F |
| T | F | F | F | F |
| F | T | T | F | F |
| F | F | T | F | F |
All the truth values in the last column are F. Hence, it is a contradiction.
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