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