Yeah, that's my point. 0.1 and 0.2 do add exactly to 0.3, but in any finite representation of real numbers you'll get rounding errors on some equations like thi

Yeah, that's my point. 0.1 and 0.2 do add exactly to 0.3, but in any finite representation of real numbers you'll get rounding errors on some equations like this. If you use an infinite representation then equality is no longer computable.