Definition:Real Number/Real Number Line/Ordering
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Definition
Consider the real number line:
The usual ordering on $\R$ is implemented on the real number line as:
- $a > b$ if and only if $a$ is to the right of $b$
- $a < b$ if and only if $a$ is to the left of $b$.
Sources
- 1981: Murray R. Spiegel: Theory and Problems of Complex Variables (SI ed.) ... (previous) ... (next): $1$: Complex Numbers: Graphical Representation of Real Numbers