Add AbstractAlgebra notes ch18-ch26

seminarexercises.tex

@@ -42,12 +42,8 @@
 \end{solution}
 
 \begin{solution}{1.28}\
-
-	The quotient set of the equivalence relation in Example 1.27 is
-	$$
-	X / \sim = \{[(x_0,y_0)], [(x_1, y_1)], \ldots, [(x_n, y_n)]\}
-	$$
-	Yes, it is isomorphic to the cosets of the \emph{nth} roots of unity, which are $\mathbb{G}_n = \{w_k\}^{n-1}_{k=0}$, where $w_k=e^{\frac{2 \pi i}{n}}$.
+	\emph{(WIP)}\\
+	It is isomorphic to the cosets of the \emph{nth} roots of unity, which are $\mathbb{G}_n = \{w_k\}^{n-1}_{k=0}$, where $w_k=e^{\frac{2 \pi i}{n}}$.
 \end{solution}
 
 \begin{solution}{2.2}\