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  • someacnt_@lemmy.worldtoScience Memes@mander.xyzVectors Part 2
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    2 months ago

    When talking about vector space, you usually need the “scalar (field)”, and scalars need inverse to be well-defined.

    So for integers, the scalar should be integer itself. Sadly, inverse of integers stops being an integer, from where all sorts of number theoretic nightmare occurs Instead, integers form a ring, and is a module over scalar of integers.