Do you find some mathematical activities useless?

[SlideRule]

(04-05-2018 06:15 PM)zeno333 Wrote:  People did not invent Complex numbers, they were "discovered"...

Mathematicians seem to embrace more than one theory w/ respect to the origin of numbers;
a: platonic theory
b: intuitionist theory
c: formalist theory
d: logistic theory
e: fictionalist theory
among the most referenced theories: pick one & expostulate accordingly.

BEST!
SlideRule