Suppose you show that Barbara's conclusion doesn't follow from her premises. Have you thereby shown that her conclusion is false?
Suppose you show that Barbara's conclusion doesn't follow from her premises. Have you thereby shown that her conclusion is false?
You've shown that her argument is unsound and thus doesn't prove its conclusion. But she might find a better argument later. To show that her conclusion is false, you have to develop your own argument against it.
Suppose you show that Barbara's conclusion doesn't follow from her premises. Have you thereby shown that her conclusion is false?
You've shown that her argument is unsound and thus doesn't prove its conclusion. But she might find a better argument later. To show that her conclusion is false, you have to develop your own argument against it.