Download Practice Quiz Answer Key

Name________________
Philosophy B7 Introduction to Logic
Quiz 2
1. Please identify the following informal fallacy: Naomi Klein, the best-selling author, argues at length that
capitalism exploits disasters and upheavals to advance radical privatization and worsen the plight of the
poor. But it’s clear that Klein says these outlandish things only to sell more books. Therefore, her
arguments on this issue really have no merit.
a. Slippery Slope
b. Appeal to the people
c. Argument against the person
d. Socialism
Please use the following standard form argument to answer the next four questions:
No insects that eat mosquitoes are insects that should be killed.
All dragonflies are insects that eat mosquitoes.
Therefore, No dragonflies are insects that should be killed.
2. What is the middle term of the above argument?
a. Insects that should be killed
b. Dragonflies
c. Insects that eat mosquitoes
d. No, All, No
3. What is the form of the above argument?
a. AEE-1
b. EAE
c. 1
d. EAE-2
e. EAE-1
4. What is the figure of the above argument?
a. AEE-1
b. EAE
c. 1
d. EAE-2
e. EAE-1
5. What is the mood of the above argument?
a. AEE-1
b. EAE
c. 1
d. EAE-2
e. EAE-1
6. Please identify the following informal fallacy: I know that some of you oppose the appointment of David
Cole as the new sales manager. On further consideration, however, I am confident you will find him well
qualified for the job. If Cole is not appointed, it may become necessary to make severe personnel
cutbacks in your department.
a. Appeal to the masses
b. False Cause
c. Appeal to force
d. Weak Analogy
1
7. Please match the following syllogism with the
appropriate Venn diagram. B
Some P are M
All S are M
Some S are P
8. Is the above syllogism valid?
a.
b.
Yes
No
9. Please match the following syllogism with the
appropriate Venn diagram. AD
All M are P
All M are S
All S are P
10. Is the above syllogism valid?
a.
b.
Yes
No
11. Please match the following syllogism with the
appropriate Venn diagram. E
All P are M
Some S are not M
Some S are P
12. Is the above syllogism valid?
a.
b.
Yes
No
13. Please identify the following informal fallacy: It is ridiculous to hear that man from Peru complaining
about America’s poverty. Peru has twice as much poverty as America has ever had.
a. Weak Analogy
b. False Cause
c. Argument Against the Person
d. Complex Question
2
14. What operation allows you to go from Some F are not A is false to No F are A is false?
a. Subalternation
b. Contradictory
c. Conversion
d. Contrary
15. If No F are A is False, what is the truth value of No A are F?
a. False
b. True
c. Undetermined
16. What categorical proposition belongs in the following blank space? Obverting No A are F
gives you _____________
a. All A are F
b. All A are non-F
c. All non-A are F
d. All non-A are non-F
17. If it is true that Some P are not non-S, what is the truth value of Some P are S?
a. True
b. False
18. What operation or relation was used to derive the answer in question 17?
a. Obversion
b. Contrary
c. Conversion
d. Contraposition
19. What does the converted form of Some P are S look like?
a. Some S are P
b. All S are P
c. No S are P
d. No P are S
20. If Some S are P is true, what is the truth value of No S are P?
a. True
b. False
3