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If the Boolean expression (p oplusq)wedg...

If the Boolean expression `(p oplusq)wedge (~p Theta q)` is equivalent to `p wedge q`, where `oplus, Theta in {vee, wedge}`, then the ordered pair `(``oplus, Theta`)` is

A

`( wedge, vee)`

B

`( vee, vee)`

C

`( wedge, wedge)`

D

`(vee, wedge)`

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem, we need to find the ordered pair \((\oplus, \Theta)\) such that the Boolean expression \((p \oplus q) \wedge (\neg p \Theta q)\) is equivalent to \(p \wedge q\). Here, \(\oplus\) and \(\Theta\) can be either conjunction (\(\wedge\)) or disjunction (\(\vee\)). ### Step 1: Understand the equivalence We start with the expression: \[ (p \oplus q) \wedge (\neg p \Theta q) \equiv p \wedge q \] We need to check different combinations of \(\oplus\) and \(\Theta\) to find which one satisfies this equivalence. ### Step 2: Create a truth table for \(p \wedge q\) The truth table for \(p \wedge q\) is as follows: | \(p\) | \(q\) | \(p \wedge q\) | |-------|-------|----------------| | T | T | T | | T | F | F | | F | T | F | | F | F | F | ### Step 3: Check combinations of \(\oplus\) and \(\Theta\) #### Case 1: \(\oplus = \wedge\), \(\Theta = \vee\) 1. Calculate \(p \wedge q\): - This is already given in the truth table. 2. Calculate \(\neg p \vee q\): - The truth table for \(\neg p\) is: | \(p\) | \(\neg p\) | |-------|------------| | T | F | | F | T | - Now, calculate \(\neg p \vee q\): | \(p\) | \(q\) | \(\neg p\) | \(\neg p \vee q\) | |-------|-------|------------|--------------------| | T | T | F | T | | T | F | F | F | | F | T | T | T | | F | F | T | T | 3. Now calculate \((p \wedge q) \wedge (\neg p \vee q)\): | \(p\) | \(q\) | \(p \wedge q\) | \(\neg p \vee q\) | \((p \wedge q) \wedge (\neg p \vee q)\) | |-------|-------|----------------|--------------------|------------------------------------------| | T | T | T | T | T | | T | F | F | F | F | | F | T | F | T | F | | F | F | F | T | F | This results in: \[ (p \wedge q) \wedge (\neg p \vee q) \equiv p \wedge q \] #### Case 2: \(\oplus = \vee\), \(\Theta = \wedge\) 1. Calculate \(p \vee q\): | \(p\) | \(q\) | \(p \vee q\) | |-------|-------|---------------| | T | T | T | | T | F | T | | F | T | T | | F | F | F | 2. Calculate \(\neg p \wedge q\): | \(p\) | \(q\) | \(\neg p\) | \(\neg p \wedge q\) | |-------|-------|------------|----------------------| | T | T | F | F | | T | F | F | F | | F | T | T | T | | F | F | T | F | 3. Now calculate \((p \vee q) \wedge (\neg p \wedge q)\): | \(p\) | \(q\) | \(p \vee q\) | \(\neg p \wedge q\) | \((p \vee q) \wedge (\neg p \wedge q)\) | |-------|-------|---------------|----------------------|------------------------------------------| | T | T | T | F | F | | T | F | T | F | F | | F | T | T | T | T | | F | F | F | F | F | This does not match \(p \wedge q\). ### Conclusion The only ordered pair that satisfies the equivalence is: \[ (\oplus, \Theta) = (\wedge, \vee) \]
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