Question:

The proposition \(p \to \sim(p \wedge \sim q)\) is equivalent to :

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Use \(p \to r \equiv \sim p \vee r\) and De Morgan's law.
Updated On: Nov 5, 2026
  • \((\sim p) \vee q\)
  • \(q\)
  • \((\sim p) \wedge q\)
  • \((\sim p) \vee (\sim q)\)
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The Correct Option is A

Solution and Explanation

\(p \to r \equiv (\sim p) \vee r\), so \(p \to \sim(p \wedge \sim q) \equiv (\sim p) \vee \sim(p \wedge \sim q)\).
By De Morgan: \(\sim(p \wedge \sim q) \equiv (\sim p) \vee q\).
So the proposition is \((\sim p) \vee (\sim p) \vee q \equiv (\sim p) \vee q\).
Answer: (1) \((\sim p) \vee q\)
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