It is false that no sunsets are glorious scenes. Therefore, it is false that some sunsets are not glorious scenes.
A) Invalid, illicit subalternation.
B) Invalid, illicit contraposition.
C) Valid, no fallacy.
D) Invalid, illicit subcontrary.
E) Invalid, illicit conversion.

Question

Quizplus · Accepted Answer

The argument commits an illicit subalternation fallacy by incorrectly inferring from the falsity of a universal negative proposition ("no sunsets are glorious scenes") to the falsity of a particular negative proposition ("some sunsets are not glorious scenes").

It Is False That No Sunsets Are Glorious Scenes