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150+ Essentials of the Symbolic 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) .

1.

Logic is the ………………………………………..

A. science of reasoning
B. science of beauty
C. science of morality
D. science of astronomy
Answer» A. science of reasoning
2.

The proposition arrived at on the basis of proposition or propositions in an argument, is called……………………………..

A. premise
B. modus ponens
C. conclusion
D. modus tollens
Answer» C. conclusion
3.

The proposition or propositions on the basis of which the conclusion is arrived at in an argument is called …………………………..

A. syllogism or syllogisms
B. dilemma
C. premise or premises
D. disjunctive syllogism
Answer» C. premise or premises
4.

Premises and conclusion are…………………………….

A. valid or invalid
B. sound or unsound
C. valid or sound
D. true or false
Answer» D. true or false
5.

Deductive argument is characterized as…………………………….

A. true or false
B. inductive
C. valid or invalid
D. materially true or materially false
Answer» C. valid or invalid
6.

Validity of deductive argument depends on……………………………………

A. form of argument
B. matter of argument
C. both form and matter
D. truth of premises and conclusion
Answer» A. form of argument
7.

……………………………………………….reveals the form of argument

A. truth or falsity of propositions
B. use of symbols
C. true premises
D. true conclusion
Answer» B. use of symbols
8.

In the history of logic, …………….………………….are two important stages of development.

A. classical logic and symbolic logic
B. scientific and artistic
C. aesthetical and ethical
D. valid and invalid
Answer» A. classical logic and symbolic logic
9.

Classical logic is also called ………………………………………

A. symbolic logic
B. mathematical logic
C. modern logic
D. ancient logic
Answer» D. ancient logic
10.

Ancient logic is also called…………………………………………..

A. symbolic logic
B. mathematical logic
C. modern logic
D. traditional logic
Answer» D. traditional logic
11.

Symbolic logic is also called…………………………………….

A. traditional logic
B. ancient logic
C. material logic
D. mathematical logic
Answer» D. mathematical logic
12.

Mathematical logic is also called…………………………………….

A. traditional logic
B. ancient logic
C. material logic
D. modern logic
Answer» D. modern logic
13.

Symbolic logic originated in connection with

A. mathematical theory
B. inductive method
C. evolution theory
D. economic theory
Answer» A. mathematical theory
14.

Classical logic is related to symbolic logic as

A. sound to unsound
B. embryo to adult organism
C. valid to invalid
D. true to false
Answer» B. embryo to adult organism
15.

…………………had introduced into logic the important notion of a variable

A. thales
B. socrates
C. aristotle
D. bacon
Answer» C. aristotle
16.

………………………….is a symbol which can stand for any one of a given range of values

A. a logical constant
B. a modifier
C. a logical connective
D. a variable
Answer» D. a variable
17.

The development of symbolic logic has been bound up with the development of ………………………

A. physics
B. mathematics
C. chemistry
D. biology
Answer» B. mathematics
18.

In 1910, in collaboration with A.N.Whitehead, Russell published ……………………., a monumental work in which a system of symbolic logic is elaborated and made to serve as the foundation of the whole of mathematics

A. ideas
B. cartesian meditations
C. the mathematical analysis of logic
D. principia mathematica
Answer» D. principia mathematica
19.

…………………………………………………….. is the form of the argument

A. the structure or pattern of the argument
B. the subject matter with which the argument deals
C. the truth or falsity of propositions
D. the material truth of premises and conclusion
Answer» A. the structure or pattern of the argument
20.

A simple proposition is ………………………………………………………………….

A. a general proposition
B. one which contains other proposition as it’s component
C. one which does not contain any other proposition as it’s component
D. a molecular proposition
Answer» C. one which does not contain any other proposition as it’s component
21.

A compound proposition is …………………………………………………………….

A. an atomic proposition
B. a general proposition
C. one which does not contain any otherproposition as it’s component
D. one which contains other proposition as it’s component
Answer» D. one which contains other proposition as it’s component
22.

Conjunction is a compound proposition in which the word ………… is used to connect simple statements.

A. ‘not”
B. ’unless’
C. ‘or’
D. “and”
Answer» D. “and”
23.

‘Ramesh is either intelligent or hard working’ is an example of …………………………

A. negation
B. conjunction
C. disjunction
D. implication
Answer» C. disjunction
24.

“If it rains, then the road will be wet” is an example for……………………………………….

A. conjunction
B. negation
C. implication
D. disjunction
Answer» C. implication
25.

A general proposition is …………………………………

A. a quantified statement
B. a molecular proposition
C. a compound statement
D. an atomic proposition
Answer» A. a quantified statement
26.

‘All Keralites are Indians’ is an example for …………………………………………..

A. universal negative proposition
B. particular affirmative proposition
C. particular negative proposition
D. universal affirmative proposition
Answer» D. universal affirmative proposition
27.

‘ Some fruits are sweet’ is an example for……………………………………….

A. universal negative proposition
B. particular affirmative proposition
C. particular negative proposition
D. universal affirmative proposition
Answer» B. particular affirmative proposition
28.

’ Some flowers are not red’ is an example for………………………………………..

A. particular affirmative proposition
B. universal affirmative proposition
C. particular negative proposition
D. universal negative proposition
Answer» C. particular negative proposition
29.

‘ No birds are fishes’ is an example for ……………………………………………

A. particular affirmative proposition
B. particular negative proposition
C. universal negative proposition
D. universal affirmative proposition
Answer» C. universal negative proposition
30.

Singly general proposition is a general proposition with ………………………………..

A. no quantifier
B. one quantifier
C. one singular proposition
D. two or more quantifiers
Answer» B. one quantifier
31.

Multiply general proposition is a general proposition with ……………………………..

A. one quantifier
B. no quantifier
C. two or more quantifiers
D. two or more singular propositions
Answer» C. two or more quantifiers
32.

…………………………..is a branch of Symbolic Logic

A. classical logic
B. traditional logic
C. propositional logic
D. mathematical logic
Answer» C. propositional logic
33.

Quantification logic is also called………………………………………

A. propositional logic
B. predicate logic
C. classical logic
D. ancient logic
Answer» B. predicate logic
34.

………………………………….analyses the internal structure of propositions

A. propositional logic
B. truth functional logic
C. sentential logic
D. predicate logic
Answer» D. predicate logic
35.

……………………………………. does not analyse the internal structure of propositions

A. quantification logic
B. predicate logic
C. propositional logic
D. truth functional logic
Answer» C. propositional logic
36.

The two types of statements dealt within propositional logic are ……………………

A. singular and general statements
B. universal affirmative and universal negative statements
C. particular affirmative and particular negative statements
D. simple and compound statements.
Answer» D. simple and compound statements.
37.

In a conditional, the component statement that follows the “if” is called ……………

A. the “consequent”
B. the “antecedent”
C. the “conjunct”
D. the “disjunct”
Answer» B. the “antecedent”
38.

In a conditional, the component statement that follows the “then” is called ……….

A. the “antecedent”
B. the “consequent”
C. the “disjunct”
D. the “conjunct”
Answer» B. the “consequent”
39.

The two component statements of conjunction are called……………………………..

A. the “antecedents”
B. ”disjuncts”
C. “conjuncts”
D. the “consequents”
Answer» C. “conjuncts”
40.

The two component statements of disjunction are called ……………………………….

A. ” conjuncts”
B. the “consequents”
C. “disjuncts”
D. the “antecedents”
Answer» C. “disjuncts”
41.

When two statements are combined by using the phrase “if and only if”, the resulting compound statement is called …………………………………………..

A. conditional statement
B. bi-conditional statement
C. disjunctive statement
D. conjunctive statement
Answer» B. bi-conditional statement
42.

Bi-conditional statement is also called ………………….

A. implication
B. logical equivalence
C. material implication
D. material equivalence
Answer» D. material equivalence
43.

Conditional statement is also called………………………………….

A. implication
B. material equivalence
C. logical equivalence
D. conjunction
Answer» A. implication
44.

The phrase “if and only if” is used to express……………………………………………………….

A. sufficient condition
B. both sufficient and necessary condition
C. necessary condition
D. no condition
Answer» B. both sufficient and necessary condition
45.

A compound proposition whose truth-value is completely determined by the truth-values of it’s component statements is called …………………….

A. bi -conditional
B. non- truth-functional
C. conditional
D. truth-functional
Answer» D. truth-functional
46.

………………………….. Symbol is used for conjunction

A. the dot “.”
B. the tilde “ ~ ”
C. the vel ”v”
D. the horse shoe” Ͻ”
Answer» A. the dot “.”
47.

………………………….. Symbol is used for weak disjunction

A. the vel ”v”
B. the dot “.”
C. the horse shoe” Ͻ”
D. the tilde “ ~ ” 48. ………………………….. symbol is used for negation
Answer» A. the vel ”v”
48.

…………………………..Symbol is used for bi –conditional

A. the tilde “ ~ ”
B. ”v”
C. ” Ͻ”
D. “ ≡ “
Answer» D. “ ≡ “
49.

A conjunction is true if and only if ……………………………………….

A. at least one conjunct is true
B. both of it’s conjuncts are true
C. both conjuncts are false
D. none of the above
Answer» B. both of it’s conjuncts are true
50.

Inclusive or weak disjunction is false only in case ……………………………………………….

A. both of it’s disjuncts are false
B. at least one disjunct is false
C. both disjuncts are true
D. none of the above
Answer» A. both of it’s disjuncts are false

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