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Suppose p and q are two statements and ...

Suppose p and q are two statements and - p ^ q is true, then truth values of p and q are respectively

A

T, T

B

T, F

C

F, T

D

F, F

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem, we need to determine the truth values of statements \( p \) and \( q \) given that the negation of \( p \) and \( q \) (denoted as \( - (p \land q) \)) is true. ### Step-by-Step Solution: 1. **Understanding the Statement**: We know that \( - (p \land q) \) is true. This means that the statement "not (p and q)" is true. 2. **Using Logical Equivalence**: The negation of a conjunction can be rewritten using De Morgan's laws: \[ - (p \land q) \equiv -p \lor -q \] This means that at least one of \( -p \) or \( -q \) must be true. 3. **Truth Table Construction**: We will create a truth table for \( p \) and \( q \) to analyze the possible truth values. | \( p \) | \( q \) | \( p \land q \) | \( - (p \land q) \) | |---------|---------|------------------|----------------------| | T | T | T | F | | T | F | F | T | | F | T | F | T | | F | F | F | T | 4. **Analyzing the Truth Table**: From the truth table, we see that \( - (p \land q) \) is true in the following cases: - When \( p \) is true and \( q \) is false (2nd row). - When \( p \) is false and \( q \) is true (3rd row). - When both \( p \) and \( q \) are false (4th row). 5. **Finding the Required Condition**: However, we need to find the case where \( - (p \land q) \) is true. The only scenario where \( p \land q \) is false and \( - (p \land q) \) is true is when \( p \) is false and \( q \) is true. 6. **Conclusion**: Therefore, the truth values of \( p \) and \( q \) are: - \( p = \text{False} \) - \( q = \text{True} \) ### Final Answer: The truth values of \( p \) and \( q \) are respectively \( F \) (False) and \( T \) (True). ---
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