Item 0.3.2.a.

This is the set \(\{3, 4, 5, \ldots \}\) since we need each element to be a natural number whose square is at least three more than 2. Since \(3^2 - 3 = 6\) but \(2^2 - 3 = 1\) we see that the first such natural number is 3.

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