Wait what? (1+2+3+4+...

[BAndrew]

This is going nowhere, I still don't understand how it can be used in a calculation without modifying it's definition or simplifying it. It doesn't make sense to me and probably never will until it's profoundly explained to me.

I never said we invent everything.
But I do believe that math is an invention to understand our surroundings just like we invented language to understand each other. That's what I think, there are no evidence one way or the other so.

I can't understand what you can't understand.
Derivative is a concept and it is used in calculations
Integral is a concept and it is used in calculations
Function is a concept and it is used in calculations
Sequence is a concept and it is used in calculations
Infinity is a concept so why it can't be used in a calculation? Is there a magic field that says "Oh hello there infinity I am not letting you to participate in this calculation"? If you want to know exactly how this is done then I think you need to learn the corresponding material. Pick a book and start reading.

Math theorems and everything related to it were true before humans where even created. Mathematics existed before humans. Therefore it was not invented by humans, it was discovered by them.


Anyway. I think we are completely off topic right now.

What happens with 1+2+3+4+... ?