Chapter 9

Question 1

What are three ways in which statements can be converted into their logical equivalents?

Answer 1

Obversion, conversion, contraposition

Question 2

Give the two-step method for obverting a statement.

Answer 2

Change the quality of the statement; negate the predicate

Question 3

Which types of statements can be obverted?

Answer 3

A, I, E, and O

Question 4

Tell how to convert a statement

Answer 4

Interchange the subject and the predicate

Question 5

Which types of statements can be converted?

Answer 5

I and E

Question 6

What is partial conversion and which type of statement is it used with?

Answer 6

Partial conversion is accomplished by interchanging the subject and predicate and changing the statement from universal to particular. It is the only way to “convert” an A statement.

Question 7

Give the three-step method for contraposing a statement

Answer 7

obvert the statement.; convert the statement; obvert the statement again

Question 8

Which types of statements can be contraposed

Answer 8

A and O