Math-geometry

I do not understand set-builder notation.....
Using correct mathematical notation and symbols, express the following in set-builder notation: Z = {16, 17, 18, 19, 20}

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asked by Jen
  1. Instead of enumerating the members, the set-builder notation defines the members of a set using mathematical conditions.
    The set of all odd integers would be:
    A={x∈ℤ : mod(x,2)≡1}
    or the integers between 40 and 45:
    B={x∈ℤ : 40≤x≤45}

    For more examples, see:
    http://en.wikipedia.org/wiki/Set-builder_notation

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    posted by MathMate
  2. x¡Êℤ : 9<x¡Ü20

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    posted by Nay

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