Determine which of the lettered claims below is equivalent to the following: It's necessary for Steve to be tested in order for him to give blood. (This is 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)If Steve can give blood, then he has been tested.
B)If Steve has been tested, then he can give blood.
C)Steve cannot give blood, and he has not been tested.
D)Steve has not been tested, but he can give blood.

Question

Quizplus · Accepted Answer

The original statement implies a conditional relationship where being tested is a prerequisite for giving blood. Choice A correctly captures this relationship by stating that if Steve can give blood, it must mean he has been tested, aligning with the original statement's requirement.

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