deletions | additions       diff --git a/untitled.tex b/untitled.tex  index 32e1ede..6d18863 100644  --- a/untitled.tex  +++ b/untitled.tex 
...
One can create a formal definition which yeilds such a result that \begin{equation}  \frac{df(x)}{d\mathhbb{I}}=\frac{f((1-\delta)x)-f(x)}{(1-\delta)-1} \frac{df(x)}{d\mathbb{I}}=\frac{f((1-\delta)x)-f(x)}{(1-\delta)-1}  \end{equation}