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## Homework Statement

The wiki page says that error function [tex] \mbox{erf}(z) = \int_{0}^{z} e^{-t^{2}} dt [/tex] is entire. But I cannot find anywhere its proof. Could you give me some stcratch proof of this?

## Homework Equations

## The Attempt at a Solution

I've tried to use Fundamental Theorem of Calculus but as it is the line integral I couldn't use it.