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Given the following two statements S(1...

Given the following two statements
`S_(1) : (p ^^ : p) rarr (p ^^ q)` is a tautology.
`S_(2) : (p vv : p) rarr (p vv q)` is a fallacy

A

`S_(1)` is true

B

`S_(2)` is true

C

Both `S_(1)` and `S_(2)` are true

D

None of these

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem, we need to analyze both statements \( S_1 \) and \( S_2 \) to determine their validity. ### Step 1: Analyze Statement \( S_1 \) Statement \( S_1 \): \( (p \land \neg p) \rightarrow (p \land q) \) 1. **Understanding \( p \land \neg p \)**: - The expression \( p \land \neg p \) is a contradiction. It can never be true because \( p \) cannot be both true and false at the same time. - Therefore, \( p \land \neg p \) is always false. 2. **Implication Truth Table**: - The implication \( A \rightarrow B \) is only false when \( A \) is true and \( B \) is false. In all other cases, it is true. - Since \( p \land \neg p \) is always false, the implication \( (p \land \neg p) \rightarrow (p \land q) \) will always be true regardless of the truth values of \( p \) and \( q \). Thus, \( S_1 \) is a tautology. ### Step 2: Analyze Statement \( S_2 \) Statement \( S_2 \): \( (p \lor \neg p) \rightarrow (p \lor q) \) 1. **Understanding \( p \lor \neg p \)**: - The expression \( p \lor \neg p \) is a tautology. It is always true because either \( p \) is true or \( \neg p \) is true. 2. **Implication Truth Table**: - Again, using the implication truth table, since \( p \lor \neg p \) is always true, the implication \( (p \lor \neg p) \rightarrow (p \lor q) \) will depend on the truth value of \( p \lor q \). - If \( p \lor q \) is true (which can happen in several cases), then the implication is true. If \( p \lor q \) is false, then the implication is false. 3. **Evaluating \( p \lor q \)**: - The expression \( p \lor q \) can be false only when both \( p \) and \( q \) are false. - Therefore, \( S_2 \) is not a fallacy because it can be true in cases where \( p \) or \( q \) is true. Thus, \( S_2 \) is not a fallacy. ### Conclusion - \( S_1 \) is a tautology. - \( S_2 \) is not a fallacy. The correct option is that \( S_1 \) is true and \( S_2 \) is false.

To solve the problem, we need to analyze both statements \( S_1 \) and \( S_2 \) to determine their validity. ### Step 1: Analyze Statement \( S_1 \) Statement \( S_1 \): \( (p \land \neg p) \rightarrow (p \land q) \) 1. **Understanding \( p \land \neg p \)**: - The expression \( p \land \neg p \) is a contradiction. It can never be true because \( p \) cannot be both true and false at the same time. - Therefore, \( p \land \neg p \) is always false. ...
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