01:730:103 Lecture Notes - Lecture 3: Soundness, Amoco
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Exercise 03 (for-credit: 5 points) (*) (a) determine whether each of the two arguments is sound or unsound respectively; and (b) explain your answers by referring to the two constituent properties of soundness. George washington is one of the founding fathers. Soundness is truthfulness + validity, and these premises are invalid. In this argument, one of the premises is that george washington is the first president . This is not a good inference from the given argument and premises. This makes the conclusion invalid, resulting in the entire argument being unsound. You cannot draw a conclusion about the truth or falsify of the premises or conclusion, so it is invalid. Although it is valid, the premises are not all true, therefor is it cannot be sound. In order for an argument to be sound, all of the premises must be true. A sound argument is valid with all true premises. 2. these two constituent properties of soundness are.