diff --git a/sheet.tex b/sheet.tex
index dfbc507..82f4963 100644
--- a/sheet.tex
+++ b/sheet.tex
@@ -87,7 +87,7 @@
         \item $\sum_{v \in V}deg(v) = \Theta(m)$
         \item $\forall n \in \mathbb{N}: \sum^n_{k=0}k = \frac{n(n+1)}{2}$
         \item $
-            \sum^b_{i=a} \in \begin{cases}
+            \sum^b_{i=a}c^i \in \begin{cases}
                 \Theta(c^a) &\text{wenn } c < 1, \\
                 \Theta(c^b) &\text{wenn } c > 1, \\
                 \Theta(b-a) &\text{wenn } c = 1.
@@ -131,7 +131,7 @@
         stabil $e \in [0, m)$\\
         Radix-Sort & 
         $\Theta(c \cdot n)$ & $\Theta(c\cdot n)$ & $\Theta(c\cdot n)$ & 
-        stabil $e \in [0, n^c$\\
+        stabil $e \in [0, n^c)$\\
     \end{tabular}
 \end{minipage}
 \hfill