Is this a correct way to describe number sets?

[mfb]

Compromise:

Include 0 only half. Is that natural enough?

 

[fresh_42]

Compromise:

View attachment 106007

Include 0 only half. Is that natural enough?

We have to ask the Indians. As far as I know they have the copyright on the $0$. I'm sure we've had numbers when we lived in Africa, but it took a civilization to use the $0$. Probably some bookies ...

 

[micromass]

We have to ask the Indians. As far as I know they have the copyright on the $0$. I'm sure we've had numbers when we lived in Africa, but it took a civilization to use the $0$. Probably some bookies ...

Some tribes count as $1,2,3,\text{many}$. So I deny that the number $10$ is very natural.

 

[jbriggs444]

Some tribes count as $1,2,3,\text{many}$. So I deny that the number $10$ is very natural.

It's just another name for 2.