Question 1

The categorical proposition "No power plants that are coal burners are facilities that fail to impact the environment":

Accepted Answer

A)  E-type. 
B)  U-type. 
C)  I-type. 
D)  O-type. 
E)  A-type. 
A)  E-type. 
B)  U-type. 
C)  I-type. 
D)  O-type. 
E)  A-type.

Question 2

Some non-A are B. (T) Some non-A are not non-B.

Accepted Answer

A)  Subcontrary. (F) 
B)  Contraposition. (Und.) 
C)  Contradictory. (F) 
D)  Subcontrary. (Und.) 
E)  Obversion. (T) 
A)  Subcontrary. (F) 
B)  Contraposition. (Und.) 
C)  Contradictory. (F) 
D)  Subcontrary. (Und.) 
E)  Obversion. (T)

Question 3

None but English majors are eligible.

Accepted Answer

A)  All English majors are persons who are eligible. 
B)  Some English majors are persons who are not eligible. 
C)  All persons who are eligible are English majors. 
D)  All persons who are not eligible are persons who are not English majors. 
E)  Some English majors are persons who are eligible. 
A)  All English majors are persons who are eligible. 
B)  Some English majors are persons who are not eligible. 
C)  All persons who are eligible are English majors. 
D)  All persons who are not eligible are persons who are not English majors. 
E)  Some English majors are persons who are eligible.

Question 4

Given the categorical proposition "All mail order brides are women who face risky futures." If the quality but not the quantity is changed, the resulting proposition is:

Accepted Answer

A)  All mail order brides are not women who face risky futures. 
B)  Some mail order brides are not women who face risky futures. 
C)  Some mail order brides are women who face risky futures. 
D)  No mail order brides are women who face risky futures. 
E)  Some mail order brides are women who do not face risky futures. 
A)  All mail order brides are not women who face risky futures. 
B)  Some mail order brides are not women who face risky futures. 
C)  Some mail order brides are women who face risky futures. 
D)  No mail order brides are women who face risky futures. 
E)  Some mail order brides are women who do not face risky futures.

Question 5

Easter never occurs in February.

Accepted Answer

A)  No times Easter occurs are times in February. 
B)  All times in February are not times Easter occurs. 
C)  All times Easter occurs are not times in February. 
D)  All times that are not February are times Easter occurs. 
E)  No Easters are in February. 
A)  No times Easter occurs are times in February. 
B)  All times in February are not times Easter occurs. 
C)  All times Easter occurs are not times in February. 
D)  All times that are not February are times Easter occurs. 
E)  No Easters are in February.

Question 6

In Categorical Proposition 1B, the copula is:

Accepted Answer

A)  Some. 
B)  Are not. 
C)  Are. 
D)  Forest fires. 
E)  Conflagrations. 
A)  Some. 
B)  Are not. 
C)  Are. 
D)  Forest fires. 
E)  Conflagrations.

Question 7

All non-A are B. (T) No non-A are B.

Accepted Answer

A)  Contraposition. (Und.) 
B)  Contrary. (Und.) 
C)  Obversion. (T) 
D)  Contraposition. (T) 
E)  Contrary. (F) 
A)  Contraposition. (Und.) 
B)  Contrary. (Und.) 
C)  Obversion. (T) 
D)  Contraposition. (T) 
E)  Contrary. (F)

Question 8

There is a hotel in the village.

Accepted Answer

A)  Some hotels are things in the village, and some hotels are not things in the village. 
B)  Some hotels are things in the village. 
C)  Some hotels are not things in the village. 
D)  All hotels are things in the village. 
E)  No hotels are not things in the village. 
A)  Some hotels are things in the village, and some hotels are not things in the village. 
B)  Some hotels are things in the village. 
C)  Some hotels are not things in the village. 
D)  All hotels are things in the village. 
E)  No hotels are not things in the village.

Question 9

No non-A are B. (F) Some non-A are not B.

Accepted Answer

A)  Contradictory. (T) 
B)  Subalternation. (Und.) 
C)  Subcontrary. (T) 
D)  Contrary. (Und.) 
E)  Conversion. (F) 
A)  Contradictory. (T) 
B)  Subalternation. (Und.) 
C)  Subcontrary. (T) 
D)  Contrary. (Und.) 
E)  Conversion. (F)

Question 10

A few paintings are not for sale.

Accepted Answer

A)  Some paintings are not for sale. 
B)  Some paintings are items for sale, and some paintings are not items for sale. 
C)  Some paintings are items for sale. 
D)  Some items for sale are not paintings. 
E)  Some paintings are not items for sale. 
A)  Some paintings are not for sale. 
B)  Some paintings are items for sale, and some paintings are not items for sale. 
C)  Some paintings are items for sale. 
D)  Some items for sale are not paintings. 
E)  Some paintings are not items for sale.

Question 11

Some dark haired pixies are elves that play tricks. Therefore, some elves that do not play tricks are light haired pixies.

Accepted Answer

A)  Invalid, illicit conversion. 
B)  Invalid, illicit contraposition. 
C)  Invalid, existential fallacy. 
D)  Invalid, illicit subcontrary. 
E)  Valid, no fallacy. 
A)  Invalid, illicit conversion. 
B)  Invalid, illicit contraposition. 
C)  Invalid, existential fallacy. 
D)  Invalid, illicit subcontrary. 
E)  Valid, no fallacy.

Question 12

All A are non-B. (F) Contrary

Accepted Answer

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

Question 13

Some non-A are B. (F) Some non-B are A.

Accepted Answer

A)  Contraposition. (Und.) 
B)  Obversion. (F) 
C)  Conversion. (T) 
D)  Contraposition. (F) 
E)  Conversion. (F) 
A)  Contraposition. (Und.) 
B)  Obversion. (F) 
C)  Conversion. (T) 
D)  Contraposition. (F) 
E)  Conversion. (F)

Question 14

Anderson was elected.

Accepted Answer

A)  No people who were not elected are people not identical to Anderson. 
B)  All people identical to Anderson were elected persons. 
C)  All people identical to Anderson are people who were elected. 
D)  Some people identical to Anderson are people who were elected. 
E)  All people like Anderson are people who were elected. 
A)  No people who were not elected are people not identical to Anderson. 
B)  All people identical to Anderson were elected persons. 
C)  All people identical to Anderson are people who were elected. 
D)  Some people identical to Anderson are people who were elected. 
E)  All people like Anderson are people who were elected.

Question 15

It is false that some identity crises are tranquil happenings. Therefore, some identity crises are not tranquil happenings.

Accepted Answer

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

Question 16

In Categorical Proposition 1E, the predicate term is:

Accepted Answer

A)  Fair to taxpayers. 
B)  Bloated by war spending. 
C)  Burdens that are fair to taxpayers. 
D)  Burdens. 
E)  Federal budgets that are bloated by war spending. 
A)  Fair to taxpayers. 
B)  Bloated by war spending. 
C)  Burdens that are fair to taxpayers. 
D)  Burdens. 
E)  Federal budgets that are bloated by war spending.

Question 17

It is false that some entrance exams are not occasions for panic. Therefore, some entrance exams are occasions for panic.

Accepted Answer

A)  Invalid, illicit subalternation. 
B)  Valid. 
C)  Invalid, illicit subcontrary. 
D)  Invalid, illicit contrary. 
E)  Invalid, illicit contraposition. 
A)  Invalid, illicit subalternation. 
B)  Valid. 
C)  Invalid, illicit subcontrary. 
D)  Invalid, illicit contrary. 
E)  Invalid, illicit contraposition.

Question 18

No credit card companies are supporters of consumer rights. Therefore, it is false that all credit card companies are supporters of consumer rights.

Accepted Answer

A)  Invalid, illicit subcontrary. 
B)  Invalid, illicit contrary. 
C)  Valid. 
D)  Invalid, illicit subalternation. 
E)  Invalid, illicit conversion. 
A)  Invalid, illicit subcontrary. 
B)  Invalid, illicit contrary. 
C)  Valid. 
D)  Invalid, illicit subalternation. 
E)  Invalid, illicit conversion.

Question 19

It is false that no exercise machines are cumbersome devices. Therefore, all exercise machines are cumbersome devices.

Accepted Answer

A)  Invalid, existential fallacy. 
B)  Invalid, illicit contrary. 
C)  Invalid, illicit contraposition. 
D)  Invalid, illicit subcontrary. 
E)  Invalid, illicit subalternation. 
A)  Invalid, existential fallacy. 
B)  Invalid, illicit contrary. 
C)  Invalid, illicit contraposition. 
D)  Invalid, illicit subcontrary. 
E)  Invalid, illicit subalternation.

Question 20

No A are non-B. (T) Contraposition

Accepted Answer

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

The categorical proposition "No power plants that are coal burners are facilities that fail to impact the environment":

Some non-A are B. (T) Some non-A are not non-B.

None but English majors are eligible.

Given the categorical proposition "All mail order brides are women who face risky futures." If the quality but not the quantity is changed, the resulting proposition is:

Easter never occurs in February.

In Categorical Proposition 1B, the copula is:

All non-A are B. (T) No non-A are B.

There is a hotel in the village.

No non-A are B. (F) Some non-A are not B.

A few paintings are not for sale.

Some dark haired pixies are elves that play tricks. Therefore, some elves that do not play tricks are light haired pixies.

All A are non-B. (F) Contrary

Some non-A are B. (F) Some non-B are A.

Anderson was elected.

It is false that some identity crises are tranquil happenings. Therefore, some identity crises are not tranquil happenings.

In Categorical Proposition 1E, the predicate term is:

It is false that some entrance exams are not occasions for panic. Therefore, some entrance exams are occasions for panic.

No credit card companies are supporters of consumer rights. Therefore, it is false that all credit card companies are supporters of consumer rights.

It is false that no exercise machines are cumbersome devices. Therefore, all exercise machines are cumbersome devices.

No A are non-B. (T) Contraposition

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

The categorical proposition "No power plants that are coal burners are facilities that fail to impact the environment":

Some non-A are B. (T) Some non-A are not non-B.

None but English majors are eligible.

Given the categorical proposition "All mail order brides are women who face risky futures." If the quality but not the quantity is changed, the resulting proposition is:

Easter never occurs in February.

In Categorical Proposition 1B, the copula is:

All non-A are B. (T) No non-A are B.

There is a hotel in the village.

No non-A are B. (F) Some non-A are not B.

A few paintings are not for sale.

Some dark haired pixies are elves that play tricks. Therefore, some elves that do not play tricks are light haired pixies.

All A are non-B. (F) Contrary

Some non-A are B. (F) Some non-B are A.

Anderson was elected.

It is false that some identity crises are tranquil happenings. Therefore, some identity crises are not tranquil happenings.

In Categorical Proposition 1E, the predicate term is:

It is false that some entrance exams are not occasions for panic. Therefore, some entrance exams are occasions for panic.

No credit card companies are supporters of consumer rights. Therefore, it is false that all credit card companies are supporters of consumer rights.

It is false that no exercise machines are cumbersome devices. Therefore, all exercise machines are cumbersome devices.

No A are non-B. (T) Contraposition

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