Is x : x is a natural number, x < 5 and, x > 7 null set? - Vidyadip

Question

Is x : x is a natural number, x < 5 and, x > 7 null set?

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Answer

{x : x is a natural number, x< 5 and x > 7} is an empty set because there is no natural number which satisfies simultaneously r < 5 and x > 7.

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