• Johandea@feddit.nu
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    17 days ago

    All maths is not communtative. Most of linear algebra and number systems above the complex numbers (i.e. quaternions and above) are not commutative.

    But yes, all maths in most peoples everyday life is commutative.

    • fartographer@lemmy.world
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      17 days ago

      Forgot my “/s,” but I’m happy to double down.

      No, literally all maths is commutative. In fact, you can arbitrarily substitute any number with another number and get the right answer. See?
      4+4=8
      5+3=8
      9+1=8

      Same for multiplication and sublimation. 5x2=8.

      I could go on, but I’m pretty sure that I’ll injure myself.

      • village604
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        17 days ago

        But you’re literally wrong in this case. There are two different but valid ways of interpreting the equation that will result in different results. It’s written ambiguously on purpose.