Given the categorical proposition "Some police shootings are tragedies that could have been avoided." If the quality but not the quantity is changed, the resulting proposition is:
A) Some police shootings are tragedies that could not have been avoided.
B) All police shootings are tragedies that could have been avoided.
C) No police shootings are tragedies that could have been avoided.
D) Some police shootings are not tragedies that could have been avoided.
E) All police shootings are not tragedies that could have been avoided.

Question

Quizplus · Accepted Answer

If we change the quality of the proposition from "could have been avoided" to "could not have been avoided", it becomes "Some police shootings are tragedies that could not have been avoided." This statement does not contradict the original proposition and is therefore the correct answer. Choice A is incorrect because it contradicts the original proposition. Choices B and C are extreme statements that are not supported by the original proposition. Choice E is also an extreme statement and goes beyond the scope of the original proposition.

Given the Categorical Proposition "Some Police Shootings Are Tragedies That