Question 12
Indicate the best way to complete the following sentence.
An argument is sound (in the technical sense used in this course) when and only when:
Correct
ANSWER: iii – the argument is valid and its premises are true.
This is the definition of soundness in our technical sense. Notice that, although every sound argument has a true conclusion, not every argument with a true conclusion is sound, because an argument with a true conclusion can still be invalid, in which case it is not sound.
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