AHSEC - Class 11 Question Papers: Logic and Philosophy' 2017

Full Marks: 100
Time: Three hours
The figures in the margin indicate full marks for the questions.
1. Answer the following as directed:                       1x12=12
a)         “Logic is a normative science.” Is the statement correct?
b)         Find out the correct answer:
Logic is a science/an art/ both.
c)          Fill up the blank:
The sign of relation between subject term and predicate term is known as _______.

d)         State one important point of difference between sentence and proposition.
e)         How many valid moods are there in the third figure of a syllogism?
f)          How is the figure of a syllogism determined?
g)         What is the name of the predicate of the conclusion of syllogism?
h)         Under what conditions, a disjunctive function becomes false?
i)           Which of the following philosophers is an empiricist?
Descartes; Leibniz; Spinoza; Hume
j)           Who regarded mind as ‘a clean slate’?
k)         How many Pramanas are accepted in the Nyaya System.
l)           Who refuted the theory of innate ideas?
2. State two utilities of using symbols in logic.                     2
3. Define universal proposition with suitable examples.                                 2
4. Define figure.                               2
5. Name two valid moods of the fourth figure.                   2
6. Reduce any one of the following sentences into proper logical form and state the distributed terms or terms in that proposition:                       2x2=4
a)         Most students are not hardworking.
b)         Every man is mortal.
7. Give example of BARBARA.                    2
8. State two characteristics of deductive inference.                         2
9. Define mediate inference.                      2
Give example of syllogism.                    2
10. State one point of difference between first figure and second figure of a syllogism.                  2
11. “One of the characteristics of Indian philosophy is practical necessity.” State one reason in support of the statement. 2
12. Name any two non-Vedic systems of Indian philosophy.                        2
13. Distinguish between categorical proposition and conditional proposition.                       4
Write a short note on four-fold classification of proposition.                                4
14. State various forms of compound proposition with suitable examples.                            4
State various forms of general proposition with suitable examples.                  4
15. Describe the structure of categorical syllogism.                           4
Test the validity of any one of the following arguments:                        4
a)         We are dependent on our cars. Our cars are dependent on drivers. Therefore, we are dependent on drivers.
b)         Only honest persons are happy; John is honest. Therefore, John is happy.
16. Construct truth table for any one of the following statements and find out whether it is tautologous, contradictory or contingent:         4

Write short note on any one of the following:                              4
a)         Use of variables.
b)         Truth function.
17. Symbolize any two of the following questions:                            2x2=4
a)         It is not that Smita is not good.
b)         Either Karl Popper is a logician or he is a philosopher.
c)          If you read hard, you will pass in the examination.
18. Define philosophy. State the nature of philosophy.                  4
19. Explain any two important features of Indian philosophy.                      4
20. Briefly explain how Locke refuted ‘Descartes’ innate ideas.                  4
21. State four characteristics of empiricism.                         4
22. Explain two features of scientific realism.                      4
23. Describe the nature of logic.                                6
Discuss the points of difference between classical logic and symbolic logic.                   6
24. What is symbolic logic? Describe its nature.                   2+4=6
What are the basic truth functions? Construct truth table for negative and equivalent truth functions.              2+4=6
25. Explain three points of difference between philosophy and metaphysics.                      6
Explain three points of difference between philosophy and epistemology.                    6
26. Briefly explain Berkeleyan idealism.                                 6
What is realism? Discuss four characteristics of realism.                            2+4=6


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