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If p and q are logical statements, then ...

If p and q are logical statements, then `p rArr (~q rArr p)` is equivalent to

A

`prArr(prArrq)`

B

`p rArr (p^^q)`

C

`prArr (p^^q)`

D

`p rArr (phArr q)`

Text Solution

AI Generated Solution

The correct Answer is:
To solve the logical statement \( p \Rightarrow (\neg q \Rightarrow p) \) and find its equivalent form, we can follow these steps: ### Step 1: Rewrite the implication We know that an implication \( a \Rightarrow b \) can be rewritten as \( \neg a \lor b \). Therefore, we can rewrite \( \neg q \Rightarrow p \) as: \[ \neg (\neg q) \lor p \] This simplifies to: \[ q \lor p \] ### Step 2: Substitute back into the original statement Now, we substitute this back into the original expression: \[ p \Rightarrow (q \lor p) \] ### Step 3: Rewrite the outer implication Again, we apply the implication transformation: \[ p \Rightarrow (q \lor p) \equiv \neg p \lor (q \lor p) \] ### Step 4: Simplify the expression Using the associative property of logical disjunction, we can rearrange the terms: \[ \neg p \lor q \lor p \] This can be further simplified to: \[ (\neg p \lor p) \lor q \] Since \( \neg p \lor p \) is a tautology (always true), we have: \[ \text{True} \lor q \equiv \text{True} \] ### Step 5: Determine the equivalent expression The expression \( p \Rightarrow (\neg q \Rightarrow p) \) simplifies to \( \neg p \lor (q \lor p) \), which is logically equivalent to \( p \lor q \). ### Conclusion Thus, the equivalent expression for \( p \Rightarrow (\neg q \Rightarrow p) \) is: \[ p \lor q \] ### Final Answer The correct option is **B: \( p \Rightarrow (p \lor q) \)**.
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