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प्रश्न
Write the truth value of the following statement.
Earth is a planet and Moon is a star.
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उत्तर
Let p : Earth is a planet.
q : Moon is a star.
The truth values of p and q are T and F respectively.
The given statement in symbolic form is p ∧ q.
∴ p ∧ q ≡ T ∧ F ≡ F
∴ Truth value of the given statement is F.
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Using truth table prove that:
~ (p `leftrightarrow` q) ≡ (p ∧ ~ q) ∨ (q ∧ ~ p)
