Sample quiz #2

Practice Quiz #2         

Note: Quiz #2 is scheduled for Monday, 11/2 (11 am class), and Wednesday 11/4 (10 am class)                                                     

1. True or False: One can deduce P from the disjunct P or Q.

2. True or false: The conclusions of all valid deductions are true statements.

 

3. Write an invalid argument.

 

4. Write an uncogent argument.

 

5. True or false: The antecedent of a conditional claim is a necessary condition for the consequent.

6. Reproduce the chart for induction and deduction.

 

 

 

7.  Does the following argument violate the is-ought gap?

Many animals eat other animals. Humans are animals. Therefore, there is nothing wrong with humans eating other animals.

8. Translate into formal symbolic language:

a.      You cannot both enjoy the class and not attend. (use E and A)

 

b.       Although this quiz is cumulative, you will do well if you study. (use C, W, and S)

 

c.       If you study or are a genius, you will ace the quiz. (use S, G, and A)

9. What is "modus ponens"?

10. Is the following argument valid?

If Joe is a dog, then Joe is a mammal.

Joe is not a dog.

Therefore, Joe is not a mammal.