deletions | additions       diff --git a/untitled.tex b/untitled.tex  index 412580b..b84cf8b 100644  --- a/untitled.tex  +++ b/untitled.tex 
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One can create a formal definition which yeilds such a result that \begin{equation}  \lim_{\delta \frac{df(x)}{d\mathbb{I}}=\lim_{\delta  \to 0}\frac{df(x)}{d\mathbb{I}}=\frac{f(x)-f((1-\delta)x)}{\delta} 0}\frac{f(x)-f((1-\delta)x)}{\delta}  \end{equation} 
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\begin{equation}  \frac{de^x}{d\mathbb{I}}=\frac{e^x-e^xe^{-\delta \frac{de^x}{d\mathbb{I}}=\lim_{\delta \to 0}\frac{e^x-e^xe^{-\delta  x}}{\delta}=\frac{e^x-e^x(1-\delta x)}{\delta}=xe^x \end{equation}