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Symbolic Logic | Set 1

1. Logic is a-------- science

Correct : B. normative science

2. Logic is the Science of --------

Correct : B. thought

3. In Symbolic logic, ________ do not change their value.

Correct : A. constants

4. In _______ proposition, two simple propositions are combined by ‘either -- or’.

Correct : A. disjunctive c

5. ‘Socrates is a Philosopher’ is a -------- proposition

Correct : B. simple

6. ‘If it is raining then the ground will be wet’ is an example of ________.

Correct : D. implication

7. A curl is also called ________.

Correct : A. tilde

8. ‘If p, then q and r’ is symbolized as _________.

Correct : D. p⊃ (q ∙ r)

9. ’ Ram is tall and Das is short’ is an example of --------- proposition

Correct : A. compound

10. Symbolic expression of ‘p implies q’ is

Correct : D. p ≡ q

11. ----------- changes its value from argument to argument.

Correct : A. variable

12. Wedge symbol denotes ________ function.

Correct : C. disjunction

13. ---------- symbol stands for ‘if -- then’ relationship.

Correct : B. כ

14. In the compound statement ‘p ⊃ q’, ‘p’ and ‘q’ are _________.

Correct : C. variables

15. ‘Raju is not honest’ is an example of a _________ proposition.

Correct : D. negative

16. The known propositions in an Inference is called

Correct : B. predicate

17. ‘~’ is _________ symbol

Correct : C. negation

18. In conjunctive propositions, two simple propositions are joined by the word _________.

Correct : B. and

19. The language used with the purpose of giving information is called --- function of language

Correct : B. informative

20. ‘Logic is the study of correct reasoning’ is an example for ---- function of language

Correct : A. informative

21. By using ________, the logical form of an argument becomes explicit.

Correct : C. symbols

22. The constant symbol ‘ ’ stands for ________. ѵ

Correct : A. disjunction

23. The use of language for expressing one’s feelings and emotions and thoughts are called ----

Correct : B. expressive

24. ‘That is really great’ is an example of ------ use of language

Correct : B. expressive

25. The use of language that seeks for guide or to command is --- function of language

Correct : C. directive

26. ’Shut the door’ is an example of ------ --- function of language

Correct : C. directive

27. By using ________, the validity of an argument can be determined more accurately.

Correct : C. symbols

28. The new proposition derived from premises in an Inference is called

Correct : B. conclusion

29. A compound proposition in which simple propositions are combined using ‘and’ is called

Correct : C. conjunction

30. ‘p q’ is a ________ proposition. ѵ

Correct : A. disjunction

31. ‘The Mathematical Analysis of Logic’ is the work of -----

Correct : D. george boole

32. ‘An Investigation of the Laws of Thought’ is the work of -----

Correct : A. george boole

33. In collaboration with A.N. Whitehead, ----- published Principia Mathematica

Correct : C. russell

34. _________ is a truth-functional connective.

Correct : D. all these

35. The symbol for conjunction is --------

Correct : A. dot

36. The ‘If’ part in a Hypothetical proposition is called

Correct : C. antecedent

37. The ‘Then’ part in a Hypothetical proposition is called

Correct : B. consequence

38. ---------- symbol stands for ‘either - or ’ relationship.

Correct : C. ∨

39. ‘≡’ is the symbol for ________.

Correct : D. none of these

40. ‘If a and b, then c’ is symbolized as _________.

Correct : A. [(a . b) כ c]

41. ‘You will pass the exam only if you work hard’ is symbolized as _________.

Correct : A. p כ w

42. ---------- symbol stands for ‘if and only if’ relationship.

Correct : D. ≡

43. p . q is the symbolic expression of ------

Correct : C. p and q

44. The horseshoe symbol indicates ------ function

Correct : C. implication

45. ‘Ram and Dinesh will not both be elected’ is symbolized as

Correct : C. . ~ (r . d) d). (~r. ~

46. ‘Either Alice or Betty will be elected’ is symbolized as

Correct : B. a v b

47. ‘Ram is not honest’ is symbolized as ----

Correct : A. ~ r

48. ‘Anu is short and Balu is tall’ is symbolized as ----

Correct : B. a. b

49. ‘~ ~’ is the symbol for ________.

Correct : C. double negation

50. ‘Anu is not short and Balu is not tall’ is symbolized as ----

Correct : C. ~a . ~ b

51. ‘p and negation q’ is the symbolized as

Correct : D. p . ~ q

52. In Conjunction the word ------- is used to conjoin statements

Correct : B. and

53. Conjunction is a ------ statement

Correct : C. general

54. _________ symbol is used to form an implicative statement.

Correct : A. horseshoe

55. ‘If Raju attend the class, then Damu will not attend the class’ can be symbolized as -----

Correct : D. r כ~ d

56. The word ‘And’ is used in ------

Correct : B. conjunction

57. In Conjunction, if p is false and q is true p . q is --------

Correct : B. false

58. The statement form p v ~p is a

Correct : A. tautology

59. In implication, if p is true and q is false p כ q is -------

Correct : B. false

60. The statement form p .~p is a ----

Correct : C. contradictory

61. In Disjunction, if p is false and q is false p v q is -------

Correct : A. false

62. The statement form p . q is a ----

Correct : B. contingent

63. In Conjunction, if p is true and q is true p . q is --------

Correct : A. true

64. The truth value of a false statement is ------

Correct : B. false

65. In implication, if p is false and q is false, p כ q is -------

Correct : A. true

66. The truth value of a true statement is ------

Correct : B. true

67. In Disjunction, if p is true and q is false, p v q is -------

Correct : B. true

68. The specific form of the statement B v ~B is ----

Correct : B. p v ~ p

69. In Conjunction if p is true and q is false, p . q is --------

Correct : B. false

70. The specific form of the statement A כ) B v C) is ----

Correct : C. p כ) q v r)

71. In implication, if p is false and q is true, p כ q is -------

Correct : A. true

72. Which of the following is the substitution instance of the statement form p. ~p

Correct : B. c. ~c

73. In Disjunction, if p is false and q is true, p v q is -------

Correct : B. true

74. A statement or statement form of the pattern p ≡ q is called ----

Correct : A. biconditional

75. In Conjunction if p is false and q is false , p . q is --------

Correct : B. false

76. In implication if p is true and q is true, p כ q is -------

Correct : A. true

77. In Disjunction if p is true and q is true, p v q is -------

Correct : B. true

78. ‘Ramesh is honest and Dinesh is intelligent’ is a ------- proposition.

Correct : C. compound

79. Which word is used to form the disjunction of two statements?

Correct : A. either or

80. What is the truth value of a conjunction, if both of its conjuncts are true ?

Correct : B. true

81. p. q . . p This rule of inference is known as -------

Correct : C. simplification

82. The negation of a true statement is ---------

Correct : A. false

83. A valid argument with all true premises is termed as ------- argument

Correct : B. sound

84. The falsehood of conclusion in an argument does not guarantee the ------ of an argument

Correct : B. invalidity

85. ‘Roses are red and Violets are blue’ is a ----------- statement

Correct : B. conjunctive

86. A conjunction is true if both of its conjuncts are ----------

Correct : B. true

87. ‘Shiv is tall and Ramu is short’ is a ------ statement

Correct : A. simple

88. ‘Roses are red and Violets are not blue’ is symbolized as ------

Correct : B. r . ~ v

89. If B is true, Y is false , then the truth value of the compound statement ~ ( B. ~ Y) is -----

Correct : A. false

90. ‘Either P or Q will be selected’ is symbolized as

Correct : B. p v q

91. If A is true, X is false, then the truth value of the compound statement ~ ( A v X ) is -----

Correct : A. false

92. Bi-conditional proposition is a ----- proposition

Correct : D. compound

93. _________ symbol is used to connect statements conjunctively.

Correct : D. none of these

94. Two statements are logically equivalent when their material equivalence is a -----

Correct : D. tautology

95. ‘I will go to the cinema if and only if my friend comes with me’ is a --- proposition

Correct : D. biconditional

96. The statement form with only false substitution instances is called _________.

Correct : A. contradiction

97. The statement form with only true substitution instances is called _________.

Correct : D. tautology

98. ‘p v q’ is false if _________.

Correct : C. both p and q are false

99. ‘Arjun is honest but Ganesh is sincere’ is symbolized as----

Correct : B. a . g

100. ‘If antecedent, then consequent’ is a general form of .______.

Correct : A. implication