What is the subcontrary of the proposition "Some movie stars are not good actors"?

Question

Quizplus · Accepted Answer

The subcontrary proposition of "Some movie stars are not good actors" would be "Some movie stars are good actors." This is because the subcontrary is the opposite of the original proposition, but not the exact opposite (that would be the contrary). In this case, the opposite of "Some movie stars are not good actors" would be "No movie stars are not good actors," which is a double negative and therefore equivalent to "All movie stars are good actors." So the correct answer is A.

What Is the Subcontrary of the Proposition "Some Movie Stars