User blog comment:SconesAndTeaMapping/Studying/@comment-25802715-20161212182449

For a element of real numbers, for all n, p is element of intergers.

I just learned these symbols in University and I hate it too.

Almost reminds me of delta-epilson proofs.

For all epilson greater than 0, there exists delta greater than 0 such that (delta - c) U (delta + c) -> f(x) < epilson