Home Work Assignment 5
       
Phil 106 – Critical Thinking      Name________________________________
Fall 2007       Section_______________________________
Instructor: Ray Darr     Date_________________________________
       
       

Place the letter that corresponds to the correct answer in the space provided to the left of the question.

 

1.           A categorical syllogism consists of two categorical a. arguments b. propositions c. enthymemes

 d. middle terms used as premises and a conclusion. 

 

2.          By definition the a. middle b. minor c. major d. missing premise is whatever premise in which the minor term appears.

 

3.         The major premise of a categorical syllogism is whatever premise that contains the a. subject  b. predicate c. enthymeme d. premise of the conclusion. 

 

4.         The a. middle b. major c. minor d. missing term  appears in both premises.

 

5.          Arguments with missing propositions are called a. invalid b. enthymemes c valid d. hypothetical.

 

 

Answer the following questions by placing either a “T” or “F” in the space provided to the left of the question.

 

6.             A valid syllogism must have no exclusions or exactly two, one of which must be in the conclusion.

 

7.            In a valid syllogism, the middle term must be distributed at least once.

 

8.            In a valid syllogism, every term distributed in the conclusion must be distributed in the premise in which it appears.

 

9.            A valid syllogism must have exactly three terms, each used exactly twice to refer to the same class.

 

10.          A term is said to be “distributed” when that term is used to refer to every member of the group about which we are showing the relationship of inclusion or exclusion with another group.