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Multiplication on the naturals is repeated addition. You might see the natural numbers as training wheels for higher mathematics, but number theorists might di

• yakubin 6y ago
  Number theorists work with integers, not naturals. And they too will agree with me, as they mostly work with polynomials, which show exactly that. I also didn't say natural numbers are training wheels, just this metaphor, which to use HN lingo: doesn't scale.
  • alisonkisk 6y ago
    Number theorists work with complex numbers and irrational numbers too https://www.britannica.com/science/Riemann-zeta-function https://www.britannica.com/science/Riemann-zeta-function