Question 263956
{a|a is greater than 6 and less than 2}
    or
the set of all values of a such that a is greater than 6 and less than 2
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The "and" means the values have to satisfy both conditions.
They must be less than 2 AND they must be greater than six.
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No numbers can satisfy both of those conditions.
Ans: the null or empty set.
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Cheers,
Stan H.