III SEMESTER B. A. PHILOSOPHY PHL3B04 - SYMBOLIC LOGIC AND INFORMATICS QUESTION BANK FOR INTERNAL ASSESSMENT. Multiple Choice Questions

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1 III SEMESTER B. A. PHILOSOPHY PHL3B04 - SYMBOLIC LOGIC AND INFORMATICS QUESTION BANK FOR INTERNAL ASSESSMENT Multiple Choice Questions MODULE - I 1. In Symbolic logic, do not change their value. a) Variables b) Constants c) Inference d) Implication 2. A symbol changes its value from argument to argument. a) constant b) variable c) both (a) and (b) d) neither (a) nor (b) 3. By using, the logical form of an argument becomes explicit. a) inferences b) syllogism c) symbols d) none of these 4. By using, the validity of an argument can be determined more accurately. a) symbols b) linguistic expressions c) numbers d) all these 5. The constant symbol stands for. a) negation b) and c) if -- then d) either -- or 6. The constant symbol stands for if -- then relationship. a) ~ b) c) d) כ 7. The constant symbol that stands for and relationship is. a) b) c) ~ d) כ 8. The Constant symbol ~ stands for. a) Negation b) and c) if -- then d) either -- or 9. ~ ~ is. a) negation b) affirmation c) implication d) none of these 10. In proposition, two simple propositions are combined by either -- or. a) Conjunctive b) Negative c) Disjunctive d) Biconditional 63

2 11. In conjunctive propositions, two simple propositions are joined by. a) Either -- or b) if -- then c) negation d) and 12. p q is a proposition. a) Conjunctive b) Negative c) Disjunctive d) Implicative 13. p q is a proposition. a) Conjunctive b) Negative c) Disjunctive d) none of these 14. p q is a proposition. a) Conjunctive b) Negative c) Disjunctive d) Biconditional 15. p q is a/an proposition. a) negative b) conjunctive c) disjunctive d) implicative 16. Milk is not sweet is an example of a proposition. a) disjunctive b) negative c) conjunctive d) biconditional 17. In p q, p and q are. a) variables b) constants c) biconditionals d) none of these 18. is the symbol for. a) negation b) affirmation c) implication d) none of these 19. symbol connects. a) disjuncts b) conjuncts c) biconditionals d) all these 20. is the symbol for. a) negation b) affirmation c) implication d) material equivalence 21. If it is raining then the ground will be wet is an example of. a) Implication b) Negation c) Conjunction d) disjunction 22. is an important work of Russell in collaboration with Whitehead that introduced symbolic logic. a) Principia Mathematica b) Being and Nothingness 64

3 c) Philosophical Investigations d) none of these 23. You will get the job only if you pass the test is symbolized as. a) G P b) G P c) G P d) none of these 24. If a, then b and c is symbolized as. a) a (b c) b) a b c c) ~a b c d) a (b c) 25. is the symbolic expression of p and q. a) p v q b) p q c) p ~ q d) כp q 26. is the symbolic expression of p implies q. a) p v q b) כp q c) p q d) none of these 27. A wedge indicates function. a) Implication b) Negation c) Conjunction d) disjunction 28. A curl is also called. a) wedge b) tilde c) horseshoe d) dot 29. is a truth-functional connective. a) dot b) wedge c) horseshoe d) all these 30. is not a truth-functional connective. a) curl b) dot c) horseshoe d) wedge Answer Key 1 b 2 b 3 c 4 a 5 d 6 d 7 b 8 a 9 b 10 c 11 d 12 c 13 a 14 d 15 d 16 b 17 a 18 d 19 a 20 d 21 a 22 a 23 c 24 a 25 b 26 b 27 d 28 b 29 d 30 a 65

4 MODULE - II 1. is the symbolic expression for p or q. a) p v q b) p q c) p q d) p ~ q 2. is the symbolic expression for p and q. a) p v q b) p q c) p q d) p ~ q 3. is the symbolic expression for p implies q. a) p v q b) p q c) p q d) p ~ q 4. is the symbolic expression for p and negation q. a) p v ~q b) p q c) p ~q d) p ~ q 5. is a compound proposition in which the word and is used to connect statements. a) Conjunction b) Negation c) Syllogism d) Disjunction 6. Find the odd one out. a) Conjunction b) Negation c) Syllogism d) Disjunction 7. It will not both rain and snow. This can be symbolized as. a) ~ (p v q) b) ~ (p q) c) ~ (p q) d) ~ (p q) 8. If Babu attended the class, then Suresh did not can be symbolized as. a) ~ (B S) b) ~ (B v S) c) ~ B S d) B ~S 9. A proposition is one which does not contain any other proposition as its component. a) Compound b) Disjunctive c) Simple d) Contradictory 10. A proposition is the one which contains two or more propositions as its components. a) Compound b) True c) Simple d) False 11. is a compound proposition in which the simple statements are connected by the phrase if --- then. a) Tautology b) Disjunction c) Implication d) Contradiction 66

5 12. The symbol is used to form an implicative statement. a) Wedge b) Tribar c) Tilde d) Horseshoe 13. To connect statements conjunctively, the symbol is used. a) Wedge b) Dot c) Horseshoe d) Tilde 14. Negation is indicated by symbol. a) Tilde b) Dot c) Horseshoe d) Wedge 15. The symbol is used for disjunction. a) Wedge b) Dot c) Horseshoe d) Tilde 16. The symbol indicates material equivalence. a) Tilde b) Tribar c) Horseshoe d) Wedge 17. According to De Morgan s theorem, ~ (p q ) is logically equivalent to. a) (~ p ~ q) b) (~ p v ~ q) c) (~ p ~ q) d) (~ p ~ q) 18. According to De Morgan s theorem, ~ (p v q) is logically equivalent to. a) (~ p ~ q ) b) (~ p v ~ q ) c) (~ p ~ q ) d) (~ p ~ q ) 19. P and are logically equivalent. a) P ~P b) P ~Q c) P Q d) ~ ~ P 20. p q is false if. a) both p and q are false b) both p and q are true c) only p is false d) only q is false 21. p q is false if. a) both p and q are true b) only q is false c) both p and q are false d) none of these 22. If p and q are true, p q is. a) false b) true c) neither (a) nor (b) d) none of these 23. If p is false and q is true, p q is. a) true b) false c) neither (a) nor (b) d) both (a) and (b) 24. If both p and q are false, p q is. 67

6 a) true b) false c) neither (a) nor (b) d) both (a) and (b) ANSWER KEY 1. a 2. b 3. c 4. d 5. a 6. c 7. b 8. d 9. c 10. a 11. c 12. d 13. b 14. a 15. a 16. b 17. b 18. a 19. d 20. a 21. b 22. b 23. a 24. a MODULE - III 1. The statement form with only false substitution instances is called. a) Tautology b) Disjunction c) Contingent d) Contradiction 2. The statement form with only true substitution instances is called. a) Tautology b) Disjunction c) Contingent d) Contradiction 3. The statement form with both true and false substitution instances is called. a) Tautology b) Disjunction c) Contingent d) Contradiction 4. Find the odd one out. a) Tautology b) Disjunction c) Contingent d) Contradiction 5. An argument is valid if and only if it is not possible for all of its premises to be true and its conclusion. a) True b) False c) Tautologous d) Contingent 6. If a sentence form contains four variables, how many lines must its complete truth table? analysis have? a) 12 b) 16 c) 14 d) 18 ANSWER KEY 1. d 2. a 3. c 4. b 5. b 6. b 68

7 MODULE - IV 1. If we can construct a formal proof, the argument is. a) true b) valid c) invalid d) all these 2. The rules of inference for constructing formal proof of validity are self-evident. a) nine b) six c) three d) seven 3. ~p ~ q ~p ~ q is a valid form of. a) Modus Tollens b) Modus Ponens c) Disjunctive Syllogism d) none of these 4. Modus Tollens means denying the. a) consequent b) antecedent c) both (a) and (b) d) neither (a) nor (b) 5. Modus Ponens means the antecedent and the consequent. a) denying b) constructing c) affirming d) none of these 6. The conclusion of a valid constructive dilemma is a/an proposition. a) biconditional b) implicative c) conjunctive d) disjunctive 7. In, the premise is a conjunction. a) Conjunction b) Addition c) Simplification d) Absorption 8. In the rule of inference, H. S. the antecedent in one premise is the in another premise. a) conjunction b) consequent c) antecedent d) none of these 9. In a valid form of disjunctive syllogism, if p q is the first premise and ~p is the second premise, the conclusion will be. a) ~p b) p q c) ~q d) q 10. In, the first premise is an implicative proposition. a) Modus Ponens b) Modus Tollens c) both (a) and (b) d) neither (a) nor (b) 11. Identify the rule used in the following inference. p ~p p a) modus ponens b) modus tollens c) conjunction d) simplification 12. Name the following valid argument form. p q p q a) Modus Ponens b) Modus Tollens 69

8 c) Disjunctive Syllogism d) Hypothetical Syllogism 13. p v q ~p q is an instance of. a) modus ponens b) modus tollens c) disjunctive syllogism d) hypothetical syllogism 14. The rule of conjunction is symbolised as. a) p q b) p c) p d) none of these p (p q) q p v q 15. M (N O) M p q N This is a valid argument form of. a) modus ponens b) modus tollens c) disjunctive syllogism d) constructive dilemma 16. The valid argument form of simplification is. a) p b) p c) p q d) None of these p q q p 17. p q p q q r The conclusion is. a) q r b) p r c) p q d) None of these 18. We construct the formal proof of validity through. a) Rules of inference b) Rules of replacement c) both (a) and (b) d ) All these 19. Identify the rule used in the following instance. (p q) r ~ r ~ (p q) a) Modus ponens b) Modus tollens c) Disjunctive syllogism d) Hypothetical syllogism 20. Find out the rule used in the following inference. 70

9 p p v q a) Simplification b) Addition c) Absorption d) Conjunction ANSWER KEY 1. b 2. a 3. b 4. c 5. c 6. d 7. c 8. b 9. d 10. c 11. d 12. a 13. c 14. b 15. a 16. c 17. b 18. c 19. b 20. b MODULE - V 1. coined the term informatik in a) Karl Hempl b) Karl Steinbuch c) Karl Nic d) Karl Popper 2. The term informatics is the combination of. a) Information and science b) Information and Technology c) Information and Logic d) Information and Automatic 3. A practitioner of Informatics may be called. a) Informatician b) Info technician c) Info scientist d) Info analyst 4. In computer terms, is a representation of a fact or an idea. a) Information b) Data c) Digit d) Picture 5. is data organized or presented in a meaningful fashion. a) Knowledge b) Net work c) LAN d) Information 6. Computer language is also known as. a) Formal language b) Binary language c) Language d) Artificial language 7. Binary language consists of just the two digits. a) 0 and 1 b) 1 and 2 c) 1 and 3 d) 0 and 3 71

10 8. One Kilobyte is equal to: a) bytes b) bytes c) 1024 bytes d) 1024 bits 9. GB means. a) Greatbyte b) Gigabyte c) Gebyte d) Gegebyte 10. PB means: a) Petabyte b) Pigabyte c) Pagebyte d) Pegabyte 11. developed the Ten Commandments of Computer ethics. a) The Computer Value Institute b) The Computer Institute of Ethics c) The Computer Legal Institute d) The Computer Ethics Institute 12. The ethical computing guidelines are also known as. a) Ethical computation b) Ten Commandments of Computer Ethics c) Morals of Computing d) Green Computing 13. is a right to be left alone to do as one pleases. a) Claim b) Freedom c) Privacy d) Choice 14. The term information overload was first coined by. a) AlvinToffler b) Karl Steinbuch c) Stallman d) Hoffman 15. is the author of the book Future Shock. a) Hoffman Hoffman b) Karl Steinbuch c) Stallman d) AlvinToffler 16. Toffler projects the concept of information overload as a/an. a) Ethical disorder b) Psychological disorder c) Social disorder d) Political disorder 17. An individual who becomes too much dependent on computer and internet is called a. a) Computer addict b) Internet addict c) Cyber addict d) Game addict 18. Too much use of computer and internet is called. a) Computer addiction b) Cyber addiction c) Internet addiction d) None of these 19. In India, cyber laws have been defined under the. a.) IT Act 2000 b) IT Act 2003 c) IT Act 2005 d) IT Act In the Not gate, the output A is true if the input X is. a) true b) not true c) on d) none of these 21. In the Or gate, the output X is if the input A is zero and the input B is one. a) zero b) two c) one d) zero, zero 72

11 22. In the And gate, the output X is true if the input. a) A is true b) B is true c) both (a) and (b) d) neither (a) nor (b) 23. The Not gate has. a) two inputs b) three inputs c) no input d) only one input 24. The following truth table represents gate. INPUT OUTPUT a) AND b) NOT c) OR d) NOR ANSWER KEY 1. b 2. d 3. a 4. b 5. d 6. b 7. a 8. c 9. b 10. a 11. d 12. b 13. c 14. a 15. d 16. b 17. c 18. b 19. a 20. b 21. c 22. c 23. d 24. b 73

12 prepared by S. No Name and address of the teachers Assignment 1 Dr. M. Ramakrishnan Former Head of the Dept. of Philosophy Govt. Brennen College Thalassery (Chairperson, Board of Studies in Philosophy, University of Calicut) mramakrishnan1@rediffmail.com 2 Dr. K. Syamala Head of the Dept. of Philosophy Sree Sankaracharya University of Sanskrit, Regional Center Edat, Payyannur, Kannur (Dt.) syamaladev@rediffmail.com 3 Dr. Sirajul Muneer. C Assistant Professor of Philosophy Sree Sankaracharya University of Sanskrit, Regional Center Edat, Payyannur, Kannur (Dt.) muneer.is.siraj@gmail.com 4 Ms. Priya Assistant Professor of Philosophy Govt. Brennen College Thalassery priyaharshan@rediffmail.com 5 Dr. Smitha T. M. Assistant Professor of Philosophy Maharaja s College Ernakulum Cochin smithanil2010@gmail.com Coordinator Module I Module II & III Module IV Module V 74