# Math-Is this right Reiny?

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Using correct mathematical notation and symbols, express the following in set-builder notation:
Z = {16, 17, 18, 19, 20}

{x | 15 < x < 20, x ∈ N}

• Math-Is this right Reiny? -

see your previous post about this.

• Math-Is this right Reiny? -

{x | 16 ≤ x ≤ 20, x ∈ z} ??

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