Determine Which of the Lettered Claims Below Is Equivalent to the Following

question 85

Multiple Choice

Determine which of the lettered claims below is equivalent to the following: The gun cannot be sold unless it has a trigger lock. (This can be easy to do if you symbolize the claims first and have some familiarity either with truth tables or with the Group II rules for derivations-the truth-functional equivalences.)

• A)Only if the gun has a trigger lock can it be sold.
• B)The gun has no trigger lock, but it can be sold anyway.
• C)If the gun cannot be sold, then it has no trigger lock.
• D)If the gun has no trigger lock, then it can be sold.

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