Unverified Commit c6c57797 authored by rrueger's avatar rrueger
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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.
elementary function is the sum of all distinct products of $k$ variables''
% @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]
......@@ -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.
Together with Example~\ref{example:eqn_deg_4}, we have that every general
equation of degree 4 can be solved using surds.
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