Claire Connors and Melanie Howard cannot be one and the same person, because Claire was in Berlin during the entire month of January, and at that time Melanie was in Chicago.
A) Inductive, strong.
B) Deductive, valid.
C) Deductive, invalid.
D) Deductive, sound.
E) Inductive, weak.

Question

Quizplus · Accepted Answer

The argument is deductive because it relies on a logical structure where the premises (Claire being in Berlin and Melanie being in Chicago at the same time) necessarily lead to the conclusion (they cannot be the same person). It is valid because if the premises are true, the conclusion must also be true.

Claire Connors and Melanie Howard Cannot Be One and the Same