Andrew is lighter than Carl, and Carl is heavier than Marty. Therefore, it follows necessarily that Andrew is lighter than Marty.
A) Inductive, strong.
B) Deductive, valid.
C) Inductive, weak.
D) Deductive, invalid.
E) Deductive, sound.

Question

Quizplus · Accepted Answer

The conclusion that Andrew is lighter than Marty does not necessarily follow from the premises given, making the argument deductively invalid. The premises only establish a relationship between Andrew and Carl, and Carl and Marty, without directly comparing Andrew and Marty.

Andrew Is Lighter Than Carl, and Carl Is Heavier Than