Question

Premise 1: All birds have feathers. Premise 2: All feathered creatures can fly. Conclusion: All birds can fly. Which phrase correctly evaluates the argument? (1 point) Responses sound but fallacious sound but fallacious invalid but sound invalid but sound valid but fallacious valid but fallacious valid but unsound valid but unsound

Answer 1

The correct evaluation of the argument is: invalid but sound.

The premises state that all birds have feathers and all feathered creatures can fly, leading to the conclusion that all birds can fly. However, the conclusion does not follow logically from the premises because not all feathered creatures are birds, and there could be feathered creatures that cannot fly. Therefore, while the premises are true, the argument itself is invalid.

The conclusion fails to establish the necessary link between birds and the ability to fly since there may be exceptions (e.g., ostriches and penguins).

Note: While "sound but fallacious" implies the premises are true and the logic is valid, this text conveys the premises are true but does not lead to the correct conclusion hence "valid but unsound" could also fit.

To highlight the distinction, the correct phrase here is invalid but unsound since it affirms true premises lead to a valid conclusion.