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Cake day: July 8th, 2023

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  • I think what they mean is still a mathematical meaning, just a separate definition of ‘divisible’ not limited to integers. The term is usually used for the set of integers, but really you could define it on any set.

    “For x,y in S, x is called divisible by y if and only if x/y lies in S.” could be such a definition. Obviously you also need a definition of “/”, which is usually x/y=a <=> a*y=x with any operation *. This usually involves an algebraic Ring.


















  • How would that obviously be the case? I work with numbers a lot and immediately knew 550/2 = 275, didnt need to think for the fraction of a second. The systems are not equal across different people, every mind is unique.

    Small example: Would you consider 10/2 = 5 system 2? I think most people wouldnt, but ask a 1st grader and they would probably need to think for a few seconds.