[quote=@Extra]
<Snipped quote by Etcetera>

Yeah.

<Snipped quote by Multifarious>

Nu.
[/quote]

It's too bad you can't use that anymore.

[quote=@whizzball1]
<Snipped quote by Etcetera>

Well this one was more of a "take the information we know is true, do maths to it, and arrive at the equation we want to prove."
[/quote]

There's a very specific formula in school.