Untitled Flashcards Set

1. Define validity.
2. What does it mean for an argument to be sound?
3. Is the conclusion of a counterexample true or false?
4. Identify the form of the following argument and construct a counterexample to it:
Some politicians are liars.
No epistemologists are liars.
Therefore, some epistemologists are politicians.
5. If the premises of an argument are false, then the argument
A. must be invalid. B. is sound. C. may be valid. D. is false E. none of the above.
6. The argument below commits which fallacy?
God is love.
Love is blind.
Stevie Wonder is blind.
Therefore, Stevie Wonder is God.
A. begging-the-question B. equivocation C. hasty generalization D. false analogy
7. An argument is sound if and only if it is
A. valid and the conclusion is true B. valid and the premises are true
8. Give an example of a valid argument with a false premise and true conclusion.
9. Give an example of an argument which commits the fallacy called “false analogy”.
10. Which is a counterexample to the following argument:
Some liars are depressed.
No philosophers are depressed.
Therefore, some philosophers are liars.
A. Some dogs are collies.
No cats are collies.
Therefore, some cats are dogs
B. Some pets are cats.
No dogs are cats.
Therefore, some dogs are pets.
C. Some animals are collies.
No collies are cats.
Therefore, some cats are dogs.