What's the least abstract set of mathematical rules one

>>8747448
1+1=2

>>8747448
all axiomatic systems are more or less equally abstract. ZFC is the modem choice, pretty concrete and pretty good.

>>8747448

Which countries use these signs for multiplication and division?
Asking because that multiplication can be easily mistaken for a letter variable and division has that excess horizontal bar that just takes redundant additional stroke to write.

>>8747448
>it's another "brainlet thinks abstraction is bad because he can't understand it" episode

>>8747540
Here in Burgerstan, they use those in elementary school and on really simple calculators.

>>8747518
... only for normal instances of 1 and 2.

>>8747448
>not abstract
>but also describes the whole universe
Yeah, right. Good luck.

>>8747571
> /tv/ memes

*pukes*

>>8747448
Binary

>>8748865
this guy knows his stuff