Commit c6c57797 by rrueger

### Algebra II: Lecture 6. Add reference to missing proof of Lagrange

parent fa49c7c8
 ... @@ -49,13 +49,6 @@ now we will finally define them in general. ... @@ -49,13 +49,6 @@ now we will finally define them in general. elementary function is the sum of all distinct products of $k$ variables'' elementary function is the sum of all distinct products of $k$ variables'' \end{remark} \end{remark} % @todo % Is this true? % \begin{remark} % Strictly speaking, the elementary symmetric functions are elementary symmetric % \textbf{polynomials}. % \end{remark} \begin{example}[Elementary symmetric Functions on 3 variables] \begin{example}[Elementary symmetric Functions on 3 variables] \begin{gather*} \begin{gather*} \begin{cases} \begin{cases} ... @@ -234,6 +227,9 @@ look at the subgroups of the Galois group (Part 1 of F.T.G.T). ... @@ -234,6 +227,9 @@ look at the subgroups of the Galois group (Part 1 of F.T.G.T). subtraction, multiplication, division and extracting the $k$th root. subtraction, multiplication, division and extracting the $k$th root. \end{theorem} \end{theorem} \begin{proof} \end{proof} \begin{corollary} \begin{corollary} Together with Example~\ref{example:eqn_deg_4}, we have that every general Together with Example~\ref{example:eqn_deg_4}, we have that every general equation of degree 4 can be solved using surds. equation of degree 4 can be solved using surds. ... ...
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