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प्रश्न
State whether or not the following elements form a set; if not, give reason:
All the tall boys of your class
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उत्तर
No
Tt is not mentioned that the boys must be taller than which boy. If we consider three boys A, B and C; boy B can be taller than A but not necessarily taller than C.
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संबंधित प्रश्न
State whether or not the following elements form a set; if not, give reason:
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3, 4, 7 ∈ A
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