Re: How does this "PROOF" proves the theorem?

Posted by X on Sep 14, 2013; 1:53pm
URL: http://discussion-forum.276.s1.nabble.com/How-does-this-PROOF-proves-the-theorem-tp7583937p7583966.html

Note that this theorem is about the complex exponential.(Here z is a complex number of the form a+ib where a and b are real numbers and i=((-1)^0.5).)

Note that for complex numbers you don't have ordering "facility"!!
So, you can't speak here about e^z>0 or e^z<0 .

Can anyone give other(and true) reasoning behind the proof?

The e-book is here:Apostol, Mathematical Analysis

Thank You.