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140+ Essential of Formal Logic Solved MCQs

These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Bachelor of Arts in Philosophy (BA Philosophy) .

51.

Both premises and conclusion of an argument are _______.

A. commands
B. propositions
C. exclamations
D. questions.
Answer» B. propositions
52.

The two kinds of propositions are

A. connotative – denotative
B. abstract – concrete
C. categorical – conditional
D. good – bad
Answer» C. categorical – conditional
53.

The sign of relation between two terms is called a ________.

A. subject
B. predicate
C. object
D. copula
Answer» D. copula
54.

Denotation is the same as _______.

A. extension
B. intension
C. value
D. meaning
Answer» A. extension
55.

The function of suggesting qualities possessed by the objects is known as _______.

A. evaluating
B. denoting
C. connoting
D. meaning
Answer» C. connoting
56.

Connotation is the same as _______.

A. intension
B. extension
C. value
D. meaning
Answer» A. intension
57.

In a categorical proposition the predicate is either affirmed or denied _______ of the subject

A. unconditionally
B. conditionally
C. emotionally
D. fallaciously
Answer» A. unconditionally
58.

The proposition “if you work hard you will succeed “ – is an example for _______ proposition.

A. categorical
B. conditional
C. negative
D. emotive
Answer» B. conditional
59.

A disjunctive proposition is ________ proposition.

A. conditional
B. unconditional
C. categorical
D. imperative.
Answer» A. conditional
60.

Affirmative or Negative is the classification of propositions on the basis of _________.

A. quantity
B. quality
C. validity
D. truth.
Answer» B. quality
61.

Universal or Particular is the classification of the propositions on the basis of _______.

A. quantity
B. quality
C. validity
D. truth.
Answer» A. quantity
62.

The quantity of a proposition is determined by the __________ of the subject.

A. intension
B. extension
C. quality
D. predicate.
Answer» B. extension
63.

A proposition in which the predicate refers to all individual objects denoted by the subject is called

A. particular
B. negative
C. disjunctive
D. universal.
Answer» D. universal.
64.

A proposition in which the predicate belongs only to a part of the denotation of the subject is called

A. particular
B. negative
C. disjunctive
D. universal.
Answer» A. particular
65.

Individual propositions are to be regarded as___________.

A. universal
B. particular
C. negative
D. fallacy.
Answer» A. universal
66.

That proposition in which the quantity of the subject is not stated clearly but left vague is called______________.

A. dilemma
B. fallacy
C. indefinite
D. false.
Answer» C. indefinite
67.

The proposition: “ All men are mortal.”- is an example for____________ proposition.

A. universal affirmative
B. universal negative
C. particular affirmative
D. particular negative.
Answer» A. universal affirmative
68.

The proposition: “ No men are perfect”.- is an example for __________ proposition.

A. universal affirmative
B. universal negative
C. particular affirmative
D. particular negative.
Answer» B. universal negative
69.

The proposition: “ Some flowers are red “ – is an example for _________ proposition.

A. universal affirmative
B. universal negative
C. particular affirmative
D. particular negative.
Answer» C. particular affirmative
70.

The proposition: “ Some Indians are not religious”- is an example for ______ proposition.

A. universal affirmative
B. universal negative
C. particular affirmative
D. particular negative.
Answer» D. particular negative.
71.

When a term is used in its entire extent referring to to the objects denoted by the term, that term is said to be___________.

A. undistributed
B. excluded
C. distributed
D. verified.
Answer» C. distributed
72.

When a term refers only to part the class of things denoted by the term, that term is said to be____________.

A. undistributed
B. unexcluded
C. distributed
D. verified.
Answer» A. undistributed
73.

Universal affirmative proposition distributes _________.

A. subject
B. predicate
C. both subject and predicate
D. neither subject nor predicate.
Answer» A. subject
74.

Universal negative proposition distributes___________.

A. subject
B. predicate
C. both subject and predicate
D. neither subject nor predicate.
Answer» C. both subject and predicate
75.

Particular affirmative proposition distributes _________.

A. subject
B. predicate
C. both subject and predicate
D. neither subject nor predicate.
Answer» D. neither subject nor predicate.
76.

Particular negative proposition distributes __________.

A. subject
B. predicate
C. both subject and predicate
D. neither subject nor predicate.
Answer» B. predicate
77.

The process of passing directly from a single proposition to a conclusion is

A. immediate inference
B. mediate inference
C. definition
D. classification.
Answer» A. immediate inference
78.

_____________ asserts the agreement or disagreement of a subject and predicate after having compared each with middle term.

A. immediate inference
B. mediate inference
C. definition
D. classification.
Answer» B. mediate inference
79.

Opposition is a ___________ inference.

A. indirect
B. absurd
C. mediate
D. immediate.
Answer» D. immediate.
80.

Eduction is a ___________ inference.

A. indirect
B. absurd
C. mediate
D. immediate.
Answer» D. immediate.
81.

__________ is the relation between two universal propositions having the same subject but differing in quality only.

A. contrary opposition
B. contradictory opposition
C. subaltern
D. sub- contrary.
Answer» A. contrary opposition
82.

___________ is the relation between two propositions having the same subject but differing in both quality and quantity.

A. contrary opposition
B. contradictory opposition
C. subalternation
D. sub- contrary.
Answer» B. contradictory opposition
83.

The relation between two particular propositions having the same subject and predicate but differing in quality is_________opposition.

A. contrary
B. contradictory
C. subalternation
D. sub-contrary.
Answer» D. sub-contrary.
84.

______ opposition is the relation between two propositions having the same subject and predicate but differing in quantity only.

A. contrary
B. contradictory
C. subaltern
D. sub-contrary.
Answer» C. subaltern
85.

If one of the contraries is true the truth-value of the other is

A. true
B. false
C. neither true nor false
D. both true and false.
Answer» B. false
86.

If one of the contraries is false the truth-value of the other is

A. true
B. false
C. doubtful
D. neither true nor false.
Answer» C. doubtful
87.

If one of the contradictories is true the other must be _______.

A. true
B. false
C. doubtful
D. neither true nor false.
Answer» B. false
88.

Contrary propositions cannot both be ________.

A. true
B. false
C. true and false
D. doubtful.
Answer» A. true
89.

Of two sub-contraries if one is false the other is necessarily______

A. true
B. false
C. doubtful
D. neither true nor false.
Answer» A. true
90.

Of two sub-contraries if one is true the other is ________.

A. true
B. false
C. doubtful
D. neither true nor false.
Answer» C. doubtful
91.

Between subalterns if the universal is true the particular is

A. true
B. false
C. doubtfil
D. both true and false.
Answer» A. true
92.

If the particular proposition of a subaltern relation is false its corresponding universal proposition will be_______.

A. true
B. false
C. both true and false
D. doubtful.
Answer» B. false
93.

If the particular proposition of a subaltern relation is true, the truth-value of the universal proposition is

A. true
B. false
C. both true and false
D. doubtful.
Answer» D. doubtful.
94.

The proposition: “Socrates is wise”, is an example for ___________ proposition.

A. negative
B. singular
C. emotive
D. invalid.
Answer» B. singular
95.

The quantity of the proposition is determined by the extension of the ______.

A. subject
B. predicate
C. both subject and predicate
D. copula.
Answer» A. subject
96.

In a conditional proposition the part which expresses the condition by ‘if’ or its equvalent is

A. antecedent
B. consequent
C. opposite
D. meaning.
Answer» A. antecedent
97.

________ is a unit of reasoning in logic.

A. term
B. copula
C. proposition
D. subject.
Answer» C. proposition
98.

Euler’s circles are diagrams representing ________ of the terms.

A. distribution
B. quality
C. quantity
D. meaning.
Answer» A. distribution
99.

A syllogism is a form of ___________ inference.

A. mediate
B. immediate
C. intuitive
D. inductive.
Answer» A. mediate
100.

A syllogism is form of mediate _________ inference.

A. deductive
B. inductive
C. intuitive
D. fallacious.
Answer» A. deductive

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