What is $\Bbb E$? Is is $\Bbb R$ with the standard Euclidean topology?

60 Views Asked by At

What is $\Bbb E$?

I believe this is just alternative notation for $\Bbb R$ where $\Bbb R$ is assumed to have the standard Euclidean topology. Is this correct?

Is seems to be used in this way in Armstrong's Basic topology