TITLE: Is there a quick way to write say positive integers in an interval in mathematical notation?
QUESTION [15 upvotes]: For example I find myself wanting to write $x$ is an element of the integers from $1$ to $50$,
Is this the quickest way? 
$x\in \left[ 1,50\right] \cap \mathbb{N} $
Also is this standard on here? $\mathbb{N} = \{0, 1, 2,\dotsc \}$,
$\mathbb{ℤ}_+ = \{1, 2, \dotsc \}$.

REPLY [0 votes]: Another fancy way of writing the set is this one:   

I got this idea when reading Hammerite's answer. However, the formulas are different. Or at least, I hope so. I have never encountered his notation so far, but if it is equivalent to set union, please tell me, in order to delete my answer. However, this is the standard notation for union of sets, the one that I posted.
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