| 1 |
A statement which is true for all possible values of the variables involved in it, is called a: |
- A. tautology
- B. conditional
- C. implication
- D. absurdity
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| 2 |
S = {1, -1, 2, -2} is a group under: |
- A. multiplication
- B. subtraction
- C. addition
- 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 |
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| 6 |
A biconditional is written in symbols as: |
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| 7 |
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| 8 |
A set is defined as: |
- A. collection of some objects
- B. well defined collection of some objects
- C. well defined collection of distinct objects
- D. none of these
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| 9 |
If (x - 2, 2) = (3, 2), then: |
- A. x = 5
- B. x = 2
- C. x = -5
- D. x = 3
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| 10 |
If sets A and B are equal then: |
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