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प्रश्न
Show that p → q and q → p are not equivalent
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उत्तर
| p | q | p → q | q → p |
| T | T | T | T |
| T | F | F | T |
| F | T | T | F |
| F | F | T | T |
From the table, it is clear that
p → q ≠ q → P
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