Notice

>notice

*doesn't notice*

>assume

>let

>[math]\mathbb{R}[/math]

>It's obvious that

Yea I know

>proof omitted

>such that

>sin(x)=x

>[math]\approx[/math]

...

>whence

>proof is left as an exercise

>for some

>consider

...

>Now,

>that is

>not using [math]{}^*\mathbb{R}[/math]

>is

>such that

>we