The emerald is more expensive than the diamond, and the diamond is less expensive than the sapphire. Therefore, it necessarily follows that the emerald is more expensive than the sapphire.
A) Deductive, invalid.
B) Inductive, weak.
C) Deductive, valid.
D) Inductive, uncogent.
E) Inductive, strong.

Question

Quizplus · Accepted Answer

The conclusion that the emerald is more expensive than the sapphire does not logically follow from the premises given, making the argument deductively invalid. The premises only establish that the emerald is more expensive than the diamond and the diamond is less expensive than the sapphire, without directly comparing the emerald and the sapphire.

The Emerald Is More Expensive Than the Diamond, and the Diamond