• Re: Does Mathematics Exist? (was Re: Cantor Diagonal Proof)

    From Lawrence D'Oliveiro@21:1/5 to Mr Flibble on Fri Apr 11 07:23:11 2025
    On Tue, 08 Apr 2025 17:00:48 GMT, Mr Flibble wrote:

    It is correct to say that infinitesimals don't exist ...

    Remember why “imaginary” numbers were called “imaginary”: because it was
    assumed that, unlike “real” numbers, there was no way they could possibly relate to anything in the real physical world.

    How wrong that turned out to be.

    Infinitesimals are rather fundamental to calculus, or at least its
    formulation using Leibniz notation. I have an Ian Stewart book somewhere
    which, as I recall, mentioned some other real-world uses for them.

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