Sunday, December 30, 2018

Dibrugarh University Arts Question Papers:PHILOSOPHY (Major) (Logic - Western)' November-2014

2014
(November)
PHILOSOPHY
(Major)
Course: 502
(Logic - Western)
Full Marks: 80
Pass Marks: 32
Time: 3 hours
The figures in the margin indicate full marks for the questions

1. Find out the correct answer: 1x8=8
  1. There are three/four types of square of opposition.
  2. If either premise of a valid standard form of categorical syllogism is negative, the conclusion must be affirmative/ negative.
  3. When the truth value of is true and the truth value of is false, then the truth value of will be true/false.
  4. There are three/four laws of thought according to traditional logicians.
  5. The symbolic expression of the phrase given any is.
  6. J. S. Mill formulated four/five kinds of inductive canons.
  7. There are three kinds of hypothesis according to Bain/L. S. Stebbing.
  8. According to Lotze, hypothesis is a law/a real agent.
2. Write short notes on any four of the following: 4x4=16
  1. Subject-predicate form of proposition.
  2. Fallacy of four terms.
  3. Propositional logic.
  4. Disjunctive function.
  5. Summative induction.
3. Distinguish between truth and validity. Is logic concerned with truth or with validity?      9+2=11
Or
What is compound proposition? Explain with examples the various kinds of compound proposition.        3+8=11
4. State the nature and structure of standard form of categorical syllogism. Explain the existential fallacy.       8+4=12
Or
What is Venn diagram? Explain and illustrate the Venn diagram technique for testing the validity of syllogism.     2+10=12
5. Construct truth table for the following and find out whether they are tautologies, contradictions or contingent expressions:
  1. 2
  2. 2
  3. 2
  4. 2
  5. 3
Or
Construct formal proof of validity for the following: 5 ½ x2=11
6. Explain and illustrate the symbolization of traditional categorical proposition. 11
Or
What do you mean by quantification? Explain with illustration the connection between universal and existential quantification. 3+8=11
7. Define hypothesis. Discuss the conditions necessary for a valid hypothesis.    3+8=11
Or
State and explain with examples Mill’s method of difference. Is it useful in scientific investigation?    10+1=11




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