Given the categorical proposition "No optical-scan voting machines are devices vulnerable to hackers." If the quantity but not the quality is changed, the resulting proposition is:
A) Some optical-scan voting machines are not devices vulnerable to hackers.
B) No optical-scan voting machines are devices that are not vulnerable to hackers.
C) Some optical-scan voting machines are devices vulnerable to hackers.
D) All optical-scan voting machines are devices vulnerable to hackers.
E) No optical-scan voting machines are devices vulnerable to hackers.

Question

Quizplus · Accepted Answer

Changing the quantity but not the quality of the original universal negative proposition ("No") results in a particular negative proposition, which is represented by choice A ("Some...are not").

Given the Categorical Proposition "No Optical-Scan Voting Machines Are Devices