Question 1

No S are P. (Aristotelian standpoint)   After filling in the Venn diagram,

Accepted Answer

A)  Area 2 is shaded, and there are no other marks. 
B)  There is an X in Area 2. 
C)  Area 2 is shaded, and there is a circled X in Area 1. 
D)  Area 3 is shaded, and there is a circled X in Area 2. 
E)  Area 1 is shaded. 
A)  Area 2 is shaded, and there are no other marks. 
B)  There is an X in Area 2. 
C)  Area 2 is shaded, and there is a circled X in Area 1. 
D)  Area 3 is shaded, and there is a circled X in Area 2. 
E)  Area 1 is shaded.

Question 2

Which of the following categorical propositions is in standard form?

Accepted Answer

A)  Supplying alcohol to minors is a criminal offense. 
B)  Many technological innovations are not things that improve the quality of life. 
C)  No consumption taxes are fair to the poor. 
D)  Some professional sports teams want new stadiums. 
E)  All tailor made suits are garments guaranteed to fit. 
A)  Supplying alcohol to minors is a criminal offense. 
B)  Many technological innovations are not things that improve the quality of life. 
C)  No consumption taxes are fair to the poor. 
D)  Some professional sports teams want new stadiums. 
E)  All tailor made suits are garments guaranteed to fit.

Question 3

All married bachelors are polygamists. Therefore, it is false that some married bachelors are not polygamists.

Accepted Answer

A)  Invalid, existential fallacy. 
B)  Invalid, illicit subcontrary. 
C)  Valid, no fallacy. 
D)  Invalid, illicit subalternation. 
E)  Invalid, illicit contrary. 
A)  Invalid, existential fallacy. 
B)  Invalid, illicit subcontrary. 
C)  Valid, no fallacy. 
D)  Invalid, illicit subalternation. 
E)  Invalid, illicit contrary.

Question 4

All S are P. (Aristotelian standpoint)   After filling in the Venn diagram,

Accepted Answer

A)  Area 2 is shaded, and there are no other marks. 
B)  Area 1 is shaded, and there are no other marks. 
C)  Area 2 is shaded, and there is a circled X in Area 1. 
D)  There is an X in Area 2, and there are no other marks. 
E)  Area 1 is shaded, and there is a circled X in Area 2. 
A)  Area 2 is shaded, and there are no other marks. 
B)  Area 1 is shaded, and there are no other marks. 
C)  Area 2 is shaded, and there is a circled X in Area 1. 
D)  There is an X in Area 2, and there are no other marks. 
E)  Area 1 is shaded, and there is a circled X in Area 2.

Question 5

She buys whatever catches her eye.

Accepted Answer

A)  All things that do not catch her eye are things she does not buy. 
B)  Some things she buys are things that catch her eye. 
C)  All things she buys are things that catch her eye. 
D)  No things that do not catch her eye are things she buys. 
E)  All things that catch her eye are things she buys. 
A)  All things that do not catch her eye are things she does not buy. 
B)  Some things she buys are things that catch her eye. 
C)  All things she buys are things that catch her eye. 
D)  No things that do not catch her eye are things she buys. 
E)  All things that catch her eye are things she buys.

Question 6

Some non-A are B. (F) Contradiction

Accepted Answer

A)  No non-A are B. (T) 
B)  All non-A are not B. (F) 
C)  Some non-B are A. (Und.) 
D)  Some non-A are not B. (F) 
E)  No A are non-B. (F) 
A)  No non-A are B. (T) 
B)  All non-A are not B. (F) 
C)  Some non-B are A. (Und.) 
D)  Some non-A are not B. (F) 
E)  No A are non-B. (F)

Question 7

No unicorns are goats. Therefore, it is false that all unicorns are goats.

Accepted Answer

A)  Invalid; illicit contraposition. 
B)  Invalid; illicit contrary. 
C)  Valid; no fallacy. 
D)  Invalid; illicit subalternation. 
E)  Invalid; existential fallacy. 
A)  Invalid; illicit contraposition. 
B)  Invalid; illicit contrary. 
C)  Valid; no fallacy. 
D)  Invalid; illicit subalternation. 
E)  Invalid; existential fallacy.

Question 8

Some non-A are not B. (F) Subcontrary

Accepted Answer

A)  No non-A are B. (F) 
B)  Some non-A are B. (T) 
C)  Some A are B. (T) 
D)  Some A are B. (Und.) 
E)  Some non-A are B. (Und.) 
A)  No non-A are B. (F) 
B)  Some non-A are B. (T) 
C)  Some A are B. (T) 
D)  Some A are B. (Und.) 
E)  Some non-A are B. (Und.)

Question 9

Categorical Proposition 1B
Given the categorical proposition:
"Some forest fires that are not started by campers are conflagrations that are not easily extinguished."

-In Categorical Proposition 1B, the quality is:

Accepted Answer

A)  Particular. 
B)  Affirmative. 
C)  Negative. 
D)  Undistributed 
E)  Universal. 
A)  Particular. 
B)  Affirmative. 
C)  Negative. 
D)  Undistributed 
E)  Universal.

Question 10

Categorical Proposition 1F
Given the categorical proposition:
"Some ID cards that are not easy documents to duplicate are forgeries that are not readily available on the Internet."

-In Categorical Proposition 1F, the quantity is:

Accepted Answer

A)  Negative. 
B)  Affirmative. 
C)  Particular. 
D)  Some. 
E)  Universal. 
A)  Negative. 
B)  Affirmative. 
C)  Particular. 
D)  Some. 
E)  Universal.

No S are P. (Aristotelian standpoint) After filling in the Venn diagram,

Which of the following categorical propositions is in standard form?

All married bachelors are polygamists. Therefore, it is false that some married bachelors are not polygamists.

All S are P. (Aristotelian standpoint) After filling in the Venn diagram,

She buys whatever catches her eye.

Some non-A are B. (F) Contradiction

No unicorns are goats. Therefore, it is false that all unicorns are goats.

Some non-A are not B. (F) Subcontrary

Categorical Proposition 1B Given the categorical proposition: "Some forest fires that are not started by campers are conflagrations that are not easily extinguished." -In Categorical Proposition 1B, the quality is:

Categorical Proposition 1F Given the categorical proposition: "Some ID cards that are not easy documents to duplicate are forgeries that are not readily available on the Internet." -In Categorical Proposition 1F, the quantity is:

Basic Concepts

Language: Meaning and Definition

Informal Fallacies

Categorical Syllogisms

Propositional Logic

Natural Deduction in Propositional Logic

Predicate Logic

Analogy and Legal and Moral Reasoning

Causality and Mills Methods

Probability

Statistical Reasoning

Hypotheticalscientific Reasoning

Science and Superstition

Filters

Exam 4: Categorical Propositions

No S are P. (Aristotelian standpoint) After filling in the Venn diagram,

Which of the following categorical propositions is in standard form?

All married bachelors are polygamists. Therefore, it is false that some married bachelors are not polygamists.

All S are P. (Aristotelian standpoint) After filling in the Venn diagram,

She buys whatever catches her eye.

Some non-A are B. (F) Contradiction

No unicorns are goats. Therefore, it is false that all unicorns are goats.

Some non-A are not B. (F) Subcontrary

Categorical Proposition 1B Given the categorical proposition: "Some forest fires that are not started by campers are conflagrations that are not easily extinguished." -In Categorical Proposition 1B, the quality is:

Categorical Proposition 1F Given the categorical proposition: "Some ID cards that are not easy documents to duplicate are forgeries that are not readily available on the Internet." -In Categorical Proposition 1F, the quantity is:

Basic Concepts

Language: Meaning and Definition

Informal Fallacies

Categorical Syllogisms

Propositional Logic

Natural Deduction in Propositional Logic

Predicate Logic

Analogy and Legal and Moral Reasoning

Causality and Mills Methods

Probability

Statistical Reasoning

Hypotheticalscientific Reasoning

Science and Superstition

Filters