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| 2 |
If W = {0, 1, 2, 3, 4, ........}, N = {1, 2, 3, 4 ...........} then N - W = ? |
- A. W
- B. {0}
- C.
- D. none of these
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| 3 |
Truth table containing all the values true is called: |
- A. absurdity
- B. conjunction
- C. tautology
- D. none
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| 4 |
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| 5 |
The identity element in a group is: |
- A. unique
- B. inifinite
- C. both a and b
- D. not possible
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| 6 |
A biconditional is written in symbols as: |
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| 7 |
A declarative statement which is either true or false but not both is called: |
- A. logic
- B. proposition
- C. induction
- D. deduction
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| 8 |
A set having no element is called: |
- A. null set
- B. subset
- C. singleton
- D. superset
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| 9 |
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| 10 |
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