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Quick notation question

by strokebow
Tags: notation
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Aug21-13, 12:46 PM
P: 101

I want to be able to say the following with mathematical symbols;

1) A is any integer.
2) A is a non-integer (not a whole number).

Please help.

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For example:
1) [tex]A\in\mathcal{Z}[/tex]
2) [tex]A\notin\mathcal{Z}[/tex]
Aug21-13, 01:27 PM
P: 228
[itex]A[/itex] is an integer: [itex]A\in\mathbb Z[/itex].
[itex]A[/itex] is not an integer: [itex]A\notin\mathbb Z[/itex].
[itex]A[/itex] is a real number which is not an integer: [itex]A\in\mathbb R\backslash\mathbb Z[/itex].
[itex]A[/itex] is not a whole number: [itex]A\notin\mathbb Z_+[/itex].

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