Suppose that Barbara gives you a valid argument. Must her conclusion then be true?
Suppose that Barbara gives you a valid argument. Must her conclusion then be true?
"Valid" just means that the conclusion follows from the premises. The conclusion might be false if a premise is false.
Here's an example of a valid argument with a false conclusion:
Suppose that Barbara gives you a valid argument. Must her conclusion then be true?
"Valid" just means that the conclusion follows from the premises. The conclusion might be false if a premise is false.
Here's an example of a valid argument with a false conclusion: