2. The proposition arrived at on the basis of proposition or propositions in an
argument, is called……………………………..
Correct : C. conclusion
3. The proposition or propositions on the basis of which the conclusion is arrived at
in an argument is called …………………………..
Correct : C. premise or premises
4. Premises and conclusion are…………………………….
Correct : D. true or false
5. Deductive argument is characterized as…………………………….
Correct : C. valid or invalid
6. Validity of deductive argument depends on……………………………………
Correct : A. form of argument
7. ……………………………………………….reveals the form of argument
Correct : B. use of symbols
8. In the history of logic, …………….………………….are two important stages of
development.
Correct : A. classical logic and symbolic logic
9. Classical logic is also called ………………………………………
Correct : D. ancient logic
10. Ancient logic is also called…………………………………………..
Correct : D. traditional logic
11. Symbolic logic is also called…………………………………….
Correct : D. mathematical logic
12. Mathematical logic is also called…………………………………….
Correct : D. modern logic
13. Symbolic logic originated in connection with
Correct : A. mathematical theory
14. Classical logic is related to symbolic logic as
Correct : B. embryo to adult organism
15. …………………had introduced into logic the important notion of a variable
Correct : C. aristotle
16. ………………………….is a symbol which can stand for any one of a given range of
values
Correct : D. a variable
17. The development of symbolic logic has been bound up with the development of ………………………
Correct : 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
Correct : D. principia mathematica
19. …………………………………………………….. is the form of the argument
Correct : A. the structure or pattern of the argument
20. A simple proposition is ………………………………………………………………….
Correct : C. one which does not contain any other proposition as it’s component
21. A compound proposition is …………………………………………………………….
Correct : 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.
Correct : D. “and”
23. ‘Ramesh is either intelligent or hard working’ is an example of …………………………
Correct : C. disjunction
24. “If it rains, then the road will be wet” is an example for……………………………………….
Correct : C. implication
25. A general proposition is …………………………………
Correct : A. a quantified statement
26. ‘All Keralites are Indians’ is an example for …………………………………………..
Correct : D. universal affirmative proposition
27. ‘ Some fruits are sweet’ is an example for……………………………………….
Correct : B. particular affirmative proposition
28. ’ Some flowers are not red’ is an example for………………………………………..
Correct : C. particular negative proposition
29. ‘ No birds are fishes’ is an example for ……………………………………………
Correct : C. universal negative proposition
30. Singly general proposition is a general proposition with ………………………………..
Correct : B. one quantifier
31. Multiply general proposition is a general proposition with ……………………………..
Correct : C. two or more quantifiers
32. …………………………..is a branch of Symbolic Logic
Correct : C. propositional logic
33. Quantification logic is also called………………………………………
Correct : B. predicate logic
34. ………………………………….analyses the internal structure of propositions
Correct : D. predicate logic
35. ……………………………………. does not analyse the internal structure of propositions
Correct : C. propositional logic
36. The two types of statements dealt within propositional logic are ……………………
Correct : D. simple and compound statements.
37. In a conditional, the component statement that follows the “if” is called ……………
Correct : B. the “antecedent”
38. In a conditional, the component statement that follows the “then” is called ……….
Correct : B. the “consequent”
39. The two component statements of conjunction are called……………………………..
Correct : C. “conjuncts”
40. The two component statements of disjunction are called ……………………………….
Correct : C. “disjuncts”
41. When two statements are combined by using the phrase “if and only if”, the
resulting compound statement is called …………………………………………..
Correct : B. bi-conditional statement
42. Bi-conditional statement is also called ………………….
Correct : D. material equivalence
43. Conditional statement is also called………………………………….
Correct : A. implication
44. The phrase “if and only if” is used to express……………………………………………………….
Correct : 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 …………………….
Correct : D. truth-functional
46. ………………………….. Symbol is used for conjunction
Correct : A. the dot “.”
47. ………………………….. Symbol is used for weak disjunction
Correct : A. the vel ”v”
48. …………………………..Symbol is used for bi –conditional
Correct : D. “ ≡ “
49. A conjunction is true if and only if ……………………………………….
Correct : B. both of it’s conjuncts are true
50. Inclusive or weak disjunction is false only in case ……………………………………………….
Correct : A. both of it’s disjuncts are false
51. The dot “ . ”symbol is……………………………………..
Correct : D. a truth-functional connective
52. The curl “ ̴“ is ……………………………………………………..
Correct : D. a truth-functional operator
53. Gopal is either intelligent or hard working’ is an example for …………………………
Correct : C. inclusive or weak disjunction
54. ‘Today is Thursday or Saturday’ is an example for………………………………..
Correct : B. exclusive disjunction
55. ’If you study well, then you will pass the examination’ is an example for ……………
Correct : A. implication
56. A conditional statement asserts that in any case in which it’s antecedent is true,
it’s consequent is ……………………………
Correct : D. true also
57. For a conditional to be true the conjunction “ p. ̴q “ must be ……………….
Correct : C. false
58. ……………………….. is regarded the common meaning that is part of the meaning of
all four different types of implication symbolized as “ If p , then q”
Correct : C. ̴( p . ̴q )
59. No real connection between antecedent and consequent is suggested by …………
Correct : B. material implication
60. “it is not the case that the antecedent is true and the consequent is false” is
symbolized as……………………………………….
Correct : A. ̴( p . ̴q )
61. ‘ q if p ‘ is symbolized as……………………………….
Correct : D. ’ p Ͻ q ‘
62. ’ The conjunction of p with the disjunction of q with r’, is symbolized as …….
Correct : C. p . ( q v r )
63. ‘The disjunction whose first disjunct is the conjunction of p and q and whose
second disjunct is r ‘ is symbolized as ………………………..
Correct : D. ( p . q ) v r
64. The negaton of A V B is symbolized as ………………
Correct : B. ̴( a v b )
65. ‘ A and B will not both be selected ’ is symbolized as ………………………..
Correct : A. ̴( a . b )
66. Ramesh and Dinesh will both not be elected.
Correct : B. ̴a . ̴b
67. An argument can be proved invalid by constructing another argument of the
same form with …………………….
Correct : B. true premises and false conclusion
68. …………………………… can be defined as an array of symbols containing statement
variables but no statements, such that when statements are substituted for statement variables- the same statement being substituted for the same statement variable throughout – the result is an argument
Correct : C. an argument form
69. Any argument that results from the substitution of statements for statement
variables in an argument form is called ………………………………
Correct : D. a “ substitution instance” of that argument form
70. In case an argument is produced by substituting a different simple statement for
each different statement variable in an argument form, that argument form is called ……………………
Correct : A. the “specific form” of that argument
71. If the specific form of a given argument has any substitution instance whose
premises are true and whose conclusion is false, then the given argument is.
Correct : B. invalid
72. Refutation by logical analogy is based on the fact that any argument whose
specific form is an invalid argument form is ………………………..
Correct : C. an invalid argument.
73. ………………………… is any sequence of symbols containing statement variables but
no statements, such that when statements are substituted for the statement\ variables-the same statement being substituted for the same statement variable throughout- the result is a statement
Correct : C. a statement form
74. ’statement form from which the statement results by substituting a different
simple statement for each different statement variable’ is called ……………………..
Correct : D. the specific form of a given statement
75. A statement form that has only true substitution instances is called ……………………
Correct : A. a “ tautologous statement form “ or a “ tautology”
76. Statement forms that have both true and false statements among their
substitution instances are called ……………………………………………..
Correct : B. contingent statement forms
77. Two statements are ………………… when their material equivalence is a tautology
Correct : C. logically equivalent
78. …………………. statements have the same meaning and may be substituted for one
another
Correct : B. logically equivalent
79. . ̴( p . q) is logically equivalent to …………………………………..
Correct : C. ̴p v ̴q
80. An argument form is valid if and only if it’s expression in the form of a conditional
statement is ……………
Correct : C. a tautology
81. “If a statement is true, then it is implied by any statement whatever” is
symbolized as
Correct : B. p Ͻ (q Ͻ p)
82. “ If a statement is false, then it implies any statement whatever”
Correct : A. ̴p Ͻ (p Ͻ q)
83. ………………………… is defined as any argument that is a substitution instance of an
elementary valid argument form
Correct : A. an elementary valid argument
84. Name the rule of inference ̴( P . Q) ≡ ( ̴P V ̴Q)
Correct : C. de morgan’s theorem ( de m )
85. Name the rule of inference
( p v q ) ≡ ( q v p )
Correct : A. commutation ( com )-
86. Name the rule of inference
[ p v( q v r ) ] ≡ [ ( p v q ) v r ]
Correct : C. association (assoc )-
87. Name the rule of inference
P ≡ ̴ ̴p
Correct : C. double negation ( d .n )-
88. Name the rule of inference
( P Ͻ q ) ≡ ( ̴Q Ͻ ̴P )
Correct : C. transposition (trans )-
89. Name the rule of inference
( P Ͻ q ) ≡ ( ̴P v q )
Correct : A. material implication (impl)-
90. Name the rule of inference
( P ≡ q ) ≡ [ ( p Ͻ q ) . ( q Ͻ p ) ]
Correct : D. material equivalence ( equiv )- 105. name the rule of inference
91. Name the rule of inference ̴( P V Q) ≡ ( ̴P . ̴Q )
Correct : B. de morgan’s theorems ( de m )
92. Name the rule of inference
( p . q ) ≡ ( q . p )
Correct : A. commutation ( com )-
93. Name the rule of inference
[ p .( q . r ) ] ≡ [ ( p . q ) . r ]
Correct : C. association (assoc )-
94. Name the rule of inference
( P ≡ q ) ≡ [ ( p . q ) v ( ̴P . ̴Q ) ]
Correct : B. material equivalence ( equiv )-
95. Name the rule of inference
p ≡ ( p . p )
Correct : C. tautology ( taut )-
96. ……………………………………. are defined as expressions which contain individual
variables and become propositions when their individual variables are replaced by individual constants
Correct : B. propositional functions
97. The process of obtaining a proposition from a propositional function by
substituting a constant for a variable is called …………………………………
Correct : C. instantiation
98. General propositions can be regarded as resulting from propositional functions
by a process called
Correct : D. quantification
99. The phrase ‘Given any x’ is called …………………………………….
Correct : B. a universal quantifier
100. Universal quantifier is symbolized as …………
a) ‘(x)’ b) ′(∃x)’ c) ‘ X’ d) ‘ ∃x’ 116. The phrase ‘ there is at least one x such that’ is called ………………………………