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Pls explain ,the negation of conditional statements( if p then q) The negation of biconditional statement (p if and only if q).

Pls explain ,the negation of conditional statements( if p then q) 
The negation of biconditional statement
(p if and only if q).

Grade:11

1 Answers

Arun
25763 Points
2 years ago
Recall that p → q is equivalent to ¬ p ∨ q . Therefore the negation of the implication is the same as negating the disjunction. Using DeMorgan laws we have: ¬ ( ¬ p ∨ q ) ≡ ¬ ¬ p ∧ ¬ q ≡ p ∧ ¬ q

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