Louis graduated from college after Cheri, and Cheri graduated before Denise. Therefore, it follows necessarily that Louis graduated before Denise.
A) Deductive, valid.
B) Deductive, invalid.
C) Inductive, strong.
D) Inductive, sound.
E) Inductive, weak.

Question

Quizplus · Accepted Answer

The conclusion that Louis graduated before Denise does not necessarily follow from the premises given. The premises only establish that Louis graduated after Cheri and Cheri graduated before Denise, but this does not determine the relative graduation order of Louis and Denise.

Louis Graduated from College After Cheri, and Cheri Graduated Before