Name: 
 

Chapter 1: “The Parts of Public Thinking: Deductive Argument”



True/False
Indicate whether the statement is true or false.
 

 1. 

Being a bicycle is a necessary condition for having two wheels.
 

 2. 

An argument cannot be sound without being valid.
 

 3. 

When you explain a belief, you justify it.
 

 4. 

An argument can be valid even if a counter-example exists.
 

 5. 

In a convergent argument, all of the premises must be true in order for the argument to be sound.
 

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 6. 

“If the baby is a boy then the baby is blonde.  The baby is not a boy.  Therefore, the baby is not blonde.”  This is an example of:
a.
Disjunctive Syllogism
b.
Denying the antecedent
c.
Hypothetical Syllogism
d.
Modus Ponens
 

 7. 

In the statement, “If you snooze then you lose,” the antecedent is:
a.
you snooze
b.
you lose
c.
if-then
d.
you
 

 8. 

If potatoes are vegetables, then they have skins. Potatoes do not have skins. Therefore, potatoes are not vegetables. This argument is:
a.
valid and sound
b.
invalid but sound
c.
valid but unsound
d.
invalid and unsound
 

 9. 

“She has brown eyes or she has blue eyes.”  This is a(n):
a.
conditional statement
b.
disjunctive statement (exclusive)
c.
conjunctive statement
d.
disjunctive statement (inclusive)
 

 10. 

“If children get enough sleep, then they are happy.  If children are happy then their parents are happy.  Therefore, if children get enough sleep, then their parents are happy.”  This argument form is:
a.
Addition
b.
Destructive Dilemma
c.
Constructive Dilemma
d.
Hypothetical Syllogism
 

Completion
Complete each statement.
 

 11. 

Meaning that is suggested but not explicitly stated is called ____________________.
 

 

 12. 

If we accept that there are only two possible truth values, then we accept that truth is ____________________.
 

 

 13. 

A more technical term for a bad argument is a ____________________ argument.
 

 

 14. 

A belief that can be rationally defended on the basis of evidence can be said to have ____________________.
 

 

 15. 

Statements of what might have been, but isn’t are called ____________________.
 

 



 
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