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If p:''4 is an odd number'' and q : ''4^...

If `p:''4` is an odd number'' and q : ''`4^(3)` is an even number'' are two statements, then which of the following statements is equivalent to `~(prArrq)`?

A

'4 is an odd number and `4^(3)` is an even number''

B

The negation of the statement ''4 is not an odd number of `4^(3)` is not an even number''

C

Both (''4 is an odd number and `4^(3)` is an even number'') and (The negation of the stateement ''4 is not an odd number of `4^(3)` is not an even number'')

D

'4 is an odd number and `4^(3)` is not an even number''

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem, we need to determine the equivalent statement for the expression \( \sim (p \Rightarrow q) \), where: - \( p: 4 \text{ is an odd number} \) - \( q: 4^3 \text{ is an even number} \) ### Step 1: Understand the implication \( p \Rightarrow q \) The implication \( p \Rightarrow q \) can be expressed in logical terms as: \[ p \Rightarrow q \equiv \sim p \lor q \] This means "if \( p \) is true, then \( q \) is true" is equivalent to saying "either \( p \) is false or \( q \) is true." ### Step 2: Negate the implication Now, we need to find \( \sim (p \Rightarrow q) \). Using the equivalence we just established: \[ \sim (p \Rightarrow q) \equiv \sim (\sim p \lor q) \] ### Step 3: Apply De Morgan's Law Using De Morgan's Law, we can simplify \( \sim (\sim p \lor q) \): \[ \sim (\sim p \lor q) \equiv p \land \sim q \] This means that the negation of the disjunction is equivalent to the conjunction of \( p \) and the negation of \( q \). ### Step 4: Substitute back the statements Now we substitute back the original statements for \( p \) and \( q \): - \( p \) is "4 is an odd number" (which is false). - \( q \) is "4^3 is an even number" (which is true). Thus, \( \sim q \) is "4^3 is not an even number" (which is false). So, we have: \[ p \land \sim q \equiv (\text{"4 is an odd number"}) \land (\text{"4^3 is not an even number"}) \] ### Conclusion The final equivalent statement for \( \sim (p \Rightarrow q) \) is: \[ \text{"4 is an odd number and 4^3 is not an even number."} \]
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