Question 1

In syllogistic logic, "loud" and "noisy" count as the same term.

Accepted Answer

A) True 
 B)False  False

Question 2

Which syllogism is not valid in the fourth figure?

Accepted Answer

A) AEE 
B) IAI 
C) EIO 
D) OAO 
A) AEE 
B) IAI 
C) EIO 
D) OAO D

Question 3

A valid syllogism must have its major and minor premises in the proper order.

Accepted Answer

A) True 
 B)False  False

Question 4

"No men are dogs.No dogs eat cheese.Therefore, all cheese-eaters are men." What fallacy is committed by this argument?

Accepted Answer

A) existential fallacy 
B) fallacy of drawing an affirmative conclusion from a negative premise 
C) fallacy of exclusive premises 
D) fallacy of illicit process 
A) existential fallacy 
B) fallacy of drawing an affirmative conclusion from a negative premise 
C) fallacy of exclusive premises 
D) fallacy of illicit process

Question 5

What happens in the fallacy of the undistributed middle?

Accepted Answer

A) The major and minor terms are not directly linked by the middle term because the major term is undistributed. 
B) The major and minor terms are not directly linked by the middle term since either the major or minor term is undistributed. 
C) The major and minor terms are not directly linked by the middle term since the minor term is undistributed. 
D) The major and minor terms are not directly linked by the middle term, since the middle term is not distributed in at least one premise. 
A) The major and minor terms are not directly linked by the middle term because the major term is undistributed. 
B) The major and minor terms are not directly linked by the middle term since either the major or minor term is undistributed. 
C) The major and minor terms are not directly linked by the middle term since the minor term is undistributed. 
D) The major and minor terms are not directly linked by the middle term, since the middle term is not distributed in at least one premise.

Question 6

"Some logic professors are not good speakers.All logic professors are indi- viduals who have nice suits.Therefore, no individuals with nice suits are good speakers."
 What is the mood of this standard-form syllogism?

Accepted Answer

A) OAO 
B) AOA 
C) AOE 
D) OAE 
A) OAO 
B) AOA 
C) AOE 
D) OAE

Question 7

In a valid syllogism, you cannot derive a negative conclusion from two negative
 premises.

Accepted Answer

A) True 
 B)False

Question 8

"No risks are things worth taking; some things worth taking are not exciting; there- fore, some things that are not exciting are not risks."
 Which fallacy is committed in this syllogism?

Accepted Answer

A) the existential fallacy 
B) the fallacy of exclusive premises 
C) the fallacy of undistributed middle 
D) the fallacy of the illicit major 
A) the existential fallacy 
B) the fallacy of exclusive premises 
C) the fallacy of undistributed middle 
D) the fallacy of the illicit major

Question 9

Matching:
-If either premise in a syllogism is ________, then the conclusion must be negative.

Accepted Answer

A) false 
B) negative 
C) positive 
A) false 
B) negative 
C) positive

Question 10

"No children are soldiers; some males are soldiers; therefore, some males are not children."
 Which term in this standard-form syllogism is the middle term?

Accepted Answer

A) children 
B) soldiers 
C) males 
D) therefore 
A) children 
B) soldiers 
C) males 
D) therefore

Question 11

Matching:
-The term "________" describes the position of the middle term in the premises.

Accepted Answer

A) figure 
B) mood 
C) subject 
A) figure 
B) mood 
C) subject

Question 12

Matching:
-The mood and ________ of a syllogism determine its form.

Accepted Answer

A) Figure 
B) quantity 
C) quality 
A) Figure 
B) quantity 
C) quality

Question 13

When you test a syllogism with a Venn diagram, how do you diagram the conclusion?

Accepted Answer

A) you don't 
B) last 
C) first 
D) after the major premise 
A) you don't 
B) last 
C) first 
D) after the major premise

Question 14

In a syllogism of the second figure, the major term is in the subject position and
 the minor term is in the predicate position.

Accepted Answer

A) True 
 B)False

Question 15

Matching:
-A valid syllogism will always distribute the ________ term in at least one premise.

Accepted Answer

A) subject 
B) middle 
C) predicate 
A) subject 
B) middle 
C) predicate

Question 16

"All wild animals are vicious; some wild animals are from Africa; therefore, some animals from Africa are vicious."
 Which proposition should be diagrammed first in a Venn diagram test of validity?

Accepted Answer

A) It makes no difference. 
B) All wild animals are vicious. 
C) Some wild animals are from Africa. 
D) Therefore, some animals from Africa are vicious. 
A) It makes no difference. 
B) All wild animals are vicious. 
C) Some wild animals are from Africa. 
D) Therefore, some animals from Africa are vicious.

Question 17

"All good chairs are made in a factory.All wooden chairs are good chairs; therefore, all good wooden chairs are made in a factory."
 Which of the six syllogistic rules, if any, does the preceding syllogism break?

Accepted Answer

A) It breaks rule #6. 
B) It breaks rule #3. 
C) It breaks rule #1. 
D) It breaks no rule-it is valid. 
A) It breaks rule #6. 
B) It breaks rule #3. 
C) It breaks rule #1. 
D) It breaks no rule-it is valid.

Question 18

Matching:
-The ________ of a syllogism is determined by the letters A, E, I, and O, correspond- ing to the propositions it contains.

Accepted Answer

A) mood 
B) figure 
C) validity 
A) mood 
B) figure 
C) validity

Question 19

What characterizes the third figure?

Accepted Answer

A) The middle term is the subject of both premises. 
B) The middle term is the predicate of both premises. 
C) The middle term is the subject of the major premise and the predicate of the minor premise. 
D) The middle term is the predicate of the major premise and the subject of the minor premise. 
A) The middle term is the subject of both premises. 
B) The middle term is the predicate of both premises. 
C) The middle term is the subject of the major premise and the predicate of the minor premise. 
D) The middle term is the predicate of the major premise and the subject of the minor premise.

Question 20

The conclusion of a syllogism is never diagrammed in a Venn diagram test.

Accepted Answer

A) True 
 B)False

In syllogistic logic, "loud" and "noisy" count as the same term.

Which syllogism is not valid in the fourth figure?

A valid syllogism must have its major and minor premises in the proper order.

"No men are dogs.No dogs eat cheese.Therefore, all cheese-eaters are men." What fallacy is committed by this argument?

What happens in the fallacy of the undistributed middle?

"Some logic professors are not good speakers.All logic professors are indi- viduals who have nice suits.Therefore, no individuals with nice suits are good speakers." What is the mood of this standard-form syllogism?

In a valid syllogism, you cannot derive a negative conclusion from two negative premises.

"No risks are things worth taking; some things worth taking are not exciting; there- fore, some things that are not exciting are not risks." Which fallacy is committed in this syllogism?

Matching: -If either premise in a syllogism is ________, then the conclusion must be negative.

"No children are soldiers; some males are soldiers; therefore, some males are not children." Which term in this standard-form syllogism is the middle term?

Matching: -The term "________" describes the position of the middle term in the premises.

Matching: -The mood and ________ of a syllogism determine its form.

When you test a syllogism with a Venn diagram, how do you diagram the conclusion?

In a syllogism of the second figure, the major term is in the subject position and the minor term is in the predicate position.

Matching: -A valid syllogism will always distribute the ________ term in at least one premise.

"All wild animals are vicious; some wild animals are from Africa; therefore, some animals from Africa are vicious." Which proposition should be diagrammed first in a Venn diagram test of validity?

"All good chairs are made in a factory.All wooden chairs are good chairs; therefore, all good wooden chairs are made in a factory." Which of the six syllogistic rules, if any, does the preceding syllogism break?

Matching: -The ________ of a syllogism is determined by the letters A, E, I, and O, correspond- ing to the propositions it contains.

What characterizes the third figure?

The conclusion of a syllogism is never diagrammed in a Venn diagram test.

Basic Logical Concepts

Analyzing Arguments

Language and Definitions

Fallacies

Categorical Propositions

Syllogisms in Ordinary Language

Propositional Logic I

Propositional Logic II

Predicate Logic

Analogical Reasoning

Causal Reasoning

Science and Hypothesis

Probability

Filters

Exam 6: Categorical Syllogisms

In syllogistic logic, "loud" and "noisy" count as the same term.

Which syllogism is not valid in the fourth figure?

A valid syllogism must have its major and minor premises in the proper order.

"No men are dogs.No dogs eat cheese.Therefore, all cheese-eaters are men." What fallacy is committed by this argument?

What happens in the fallacy of the undistributed middle?

"Some logic professors are not good speakers.All logic professors are indi- viduals who have nice suits.Therefore, no individuals with nice suits are good speakers." What is the mood of this standard-form syllogism?

In a valid syllogism, you cannot derive a negative conclusion from two negative premises.

"No risks are things worth taking; some things worth taking are not exciting; there- fore, some things that are not exciting are not risks." Which fallacy is committed in this syllogism?

Matching: -If either premise in a syllogism is ________, then the conclusion must be negative.

"No children are soldiers; some males are soldiers; therefore, some males are not children." Which term in this standard-form syllogism is the middle term?

Matching: -The term "________" describes the position of the middle term in the premises.

Matching: -The mood and ________ of a syllogism determine its form.

When you test a syllogism with a Venn diagram, how do you diagram the conclusion?

In a syllogism of the second figure, the major term is in the subject position and the minor term is in the predicate position.

Matching: -A valid syllogism will always distribute the ________ term in at least one premise.

"All wild animals are vicious; some wild animals are from Africa; therefore, some animals from Africa are vicious." Which proposition should be diagrammed first in a Venn diagram test of validity?

"All good chairs are made in a factory.All wooden chairs are good chairs; therefore, all good wooden chairs are made in a factory." Which of the six syllogistic rules, if any, does the preceding syllogism break?

Matching: -The ________ of a syllogism is determined by the letters A, E, I, and O, correspond- ing to the propositions it contains.

What characterizes the third figure?

The conclusion of a syllogism is never diagrammed in a Venn diagram test.

Basic Logical Concepts

Analyzing Arguments

Language and Definitions

Fallacies

Categorical Propositions

Syllogisms in Ordinary Language

Propositional Logic I

Propositional Logic II

Predicate Logic

Analogical Reasoning

Causal Reasoning

Science and Hypothesis

Probability

Filters