diff --git a/Exercise sheet 6/exercise_sheet_06.ipynb b/Exercise sheet 6/exercise_sheet_06.ipynb
index d04ff24..8664b39 100644
--- a/Exercise sheet 6/exercise_sheet_06.ipynb	
+++ b/Exercise sheet 6/exercise_sheet_06.ipynb	
@@ -294,8 +294,8 @@
     "        s_i_n = -state[site]@nhat\n",
     "        for nbr in neighboring_sites(site,w):\n",
     "            s_j_n = state[nbr]@nhat\n",
-    "            p_add = 1 - np.exp(-2*beta*s_i_n*s_j_n)\n",
-    "            if np.sign(s_i_n) == np.sign(s_j_n) and rng.uniform() < p_add:\n",
+    "            one_minus_p_add = np.exp(-2*beta*s_i_n*s_j_n)\n",
+    "            if np.sign(s_i_n) == np.sign(s_j_n) and rng.uniform() > one_minus_p_add:\n",
     "                state[nbr] -= 2*s_j_n*nhat\n",
     "                unvisited.appendleft(nbr)\n",
     "                cluster_size += 1\n",
@@ -311,7 +311,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 107,
+   "execution_count": 109,
    "id": "3f810041",
    "metadata": {
     "deletable": false,
@@ -342,7 +342,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 108,
+   "execution_count": 110,
    "id": "bde560e4",
    "metadata": {
     "deletable": false,