Question 1

The full contrapositive of 'Some dealers are not producers':

Accepted Answer

A) some non-producers are dealers 
B) some non-producers are not non- dealers 
C) all dealers are non-producers 
D) all non-dealers are producers 
A) some non-producers are dealers 
B) some non-producers are not non- dealers 
C) all dealers are non-producers 
D) all non-dealers are producers

Question 2

Two propositions having the same subject and predicate, differ in quality only, the opposed propositions are called:

Accepted Answer

A) contraries 
B) sub-contraries 
C) sub-alterns 
D) contradictories 
A) contraries 
B) sub-contraries 
C) sub-alterns 
D) contradictories

Question 3

Identify the fallacy: All cold is dispelled by heat His ailment is cold Therefore , His ailment can be dispelled by heat

Accepted Answer

A) undistributed middle 
B) illicit major 
C) illicit minor 
D) ambiguous middle 
A) undistributed middle 
B) illicit major 
C) illicit minor 
D) ambiguous middle

Question 4

Identify the fallacy: Al college teachers are graduates He is not a college teacher Therefore , He is not a graduate

Accepted Answer

A) undistributed middle 
B) illicit major 
C) illicit minor 
D) ambiguous middle 
A) undistributed middle 
B) illicit major 
C) illicit minor 
D) ambiguous middle

Question 5

Identify the fallacy: All fishes live in water All frogs live in water Therefore ,All frogs are fishes

Accepted Answer

A) undistributed middle 
B) illicit major 
C) illicit minor 
D) ambiguous middle 
A) undistributed middle 
B) illicit major 
C) illicit minor 
D) ambiguous middle

The full contrapositive of 'Some dealers are not producers':

Two propositions having the same subject and predicate, differ in quality only, the opposed propositions are called:

Identify the fallacy: All cold is dispelled by heat His ailment is cold Therefore , His ailment can be dispelled by heat

Identify the fallacy: Al college teachers are graduates He is not a college teacher Therefore , He is not a graduate

Identify the fallacy: All fishes live in water All frogs live in water Therefore ,All frogs are fishes

Identifying Logical Forms in Sentences

Logical Forms and the Square of Opposition in Propositional Logic

Traditional Square of Opposition

Traditional Square of Opposition and Immediate Inferences

Syllogism and Fallacies

Filters

Exam 5: Logical Reasoning Fallacies

The full contrapositive of 'Some dealers are not producers':

Two propositions having the same subject and predicate, differ in quality only, the opposed propositions are called:

Identify the fallacy: All cold is dispelled by heat His ailment is cold Therefore , His ailment can be dispelled by heat

Identify the fallacy: Al college teachers are graduates He is not a college teacher Therefore , He is not a graduate

Identify the fallacy: All fishes live in water All frogs live in water Therefore ,All frogs are fishes

Identifying Logical Forms in Sentences

Logical Forms and the Square of Opposition in Propositional Logic

Traditional Square of Opposition

Traditional Square of Opposition and Immediate Inferences

Syllogism and Fallacies

Filters