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प्रश्न
Using the rules in logic, write the negation of the following:
p ∧ (q ∨ r)
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उत्तर
The negation of p ∧ (q ∨ r) is
∼ [p ∧ (q ∨ r)]
≡ ∼p ∨ ∼(q ∨ r) ..........(Negation of conjunction)
≡ ∼p ∨ (∼q ∧ ∼r) ..........(Negation of disjunction)
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