Question

Error Analysis: What is the error in the following ... Birds that weigh more than 50 pounds cannot fly. A kiwi cannot fly. So, a kiwi weighs more than 50 pounds. * Your answer

Answer 1

In the statement, the writer is trying to conclude that since a Kiwi can't fly, its weight must be greater than 50 pounds. There are many other reasons why a Kiwi might not be able to fly (small wings, for instance).

The conditional statement is not written as a is trying biconditional, so the conclusion does not imply the hypothesis.