Math Help - Given this definition, is there one or two Rs?

1. Given this definition, is there one or two Rs?

The definition uses R for relation but I am wondering if the R near the "element of" symbol is also the "relation" notation or if it is used for "reals".

Sorry if this is a dumb question but any input would be greatly appreciated!
2. It's all the same $R$. Remember a relation can be written as ordered pairs:
$aRb\Leftrightarrow (a,b)\in R$.