![ALGEBRA REVIEW. The Real Number Line negative numbers are to the left of 0 positive numbers are to the right of 0 a < b is read "a is less than b" ALGEBRA REVIEW. The Real Number Line negative numbers are to the left of 0 positive numbers are to the right of 0 a < b is read "a is less than b"](https://images.slideplayer.com/37/10735656/slides/slide_2.jpg)
ALGEBRA REVIEW. The Real Number Line negative numbers are to the left of 0 positive numbers are to the right of 0 a < b is read "a is less than b"
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Is the notation $\Bbb{R}^+$ for non-negative reals, and $\Bbb{R}^{++}$ for positive reals, standard? - Mathematics Stack Exchange
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