Sometimes I like researching obscure mathematical topics just for fun. The frustrating thing I occasionally run into is notation that I don't know how to interpret. This turns out to be rather difficult to search for online.

For example: I'm doing some research into finite fields, and I have encountered something that looks like ℤ/pℤ.

I know that ℤ typically represents the set of integers. I'm also given that p, in this case, represents an arbitrary prime number. From context, I think it's meant to represent the set {0, 1, 2,... p-1}, but I could be wrong, and, if so, I don't follow the logic.

I'm trying to brush up on my set theory, but nothing I've seen thus far explains it.

Edit for additional context: The document I'm reading is at:
people.math.harvard.edu/~lande…

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