There is not much more to the question than the subject really.
When defining a vector $x$ to be a vector with $n$ elements from the set $\{0,1\}$, is it correct to say $x \in \mathbb{Z}_2^n$ or $x \in {\mathbb{Z}_2}^n$?
2026-04-12 17:51:34.1776016294
Is $\mathbb{Z}_2^n$ or ${\mathbb{Z}_2}^n$ correct?
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Either is correct, but I more commonly see $\mathbb Z_2^n$.