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Evaluate the validity and soundness of various logical arguments based on given premises and conclusions.
E N D
Instructions: • For the arguments to be presented, write T if both premises are true, V if the statement (s) or the whole argument is/are valid, and S if the whole argument is sound or true.
No television stars are • certified public accountants, • but all certified public • accountants are people of • good business sense; it • follows that no television • stars are people of good • business sense.
2) All juvenile delinquents are maladjusted individuals, and some juvenile delinquents are products of broken homes; hence, some maladjusted individuals are products of broken homes.
3) No stubborn individuals who never admit a mistake are good teachers, so, since some well-informed people are stubborn individuals who never admit a mistake, some good teachers are not well- informed people.
4) No medicines that can be purchased without a doctor’s prescription are habit-forming drugs, so some narcotics are not habit-forming drugs, since some narcotics are medicines that can be purchased without a doctor’s prescription.
5) No college graduates are persons having an IQ of less than 70, but all persons having an IQ of less than 70 are morons, so no college graduates are morons.
6) All new automobiles are economical means of transportation, and all new automobiles are status symbols, therefore some economical means of transportation are status symbols.
7) Some reformers are fanatics, so some idealists are fanatics, since all reformers are idealists.
8) Some philosophers are mathematicians; hence some scientists are philosophers, since all scientists are mathematicians.
9) Some good actors are not powerful athletes. All professional wrestlers are powerful athletes. Therefore, all professional wrestlers are good actors.
10) All people who are most hungry are people who eat most. All people who eat least are people who are most hungry. Therefore, all people who eat least are people who eat most.
11) All useful things are objects no more than six feet long, since all difficult things to store are useful things, and no objects over six feet long are easy things to store.
12) Since all knowledge comes from sensory impressions and since there’s no sensory impression of substance itself, it follows logically that there is no knowledge of substance.
