• ewenak@jlai.lu
      5·
      2か月前

      Why a subset? They’re the same thing right? I guess it could be about the zero?

        • ewenak@jlai.lu
          3·
          2か月前

          Well what I learned in school was that zero was both positive and negative. I knew some people consider the natural numbers don’t include zero, but I didn’t know for some zero isn’t even positive.

          • deltapi@lemmy.world
            3·
            2か月前

            I knew a physicist who considered 0 negative if she arrived at 0 coming from negative source numbers and positive if coming from positive sources.

            Something something sampling rate

          • MBM@lemmings.world
            2·
            2か月前

            Some places (like France) talk about positive and strictly positive, others (like England) about non-negative and positive

        • ewenak@jlai.lu
          1·
          2か月前

          True

          But I don’t think they would have said “a subset of” if the sets were identical.