diff --git a/01_Fundamentals.ipynb b/01_Fundamentals.ipynb
index 338b99ed..deec6b8a 100644
--- a/01_Fundamentals.ipynb
+++ b/01_Fundamentals.ipynb
@@ -12,7 +12,7 @@
     "  A module is a file which contains python functions, global variables etc. It is nothing but .py file which has python executable code / statement.\n",
     "\n",
     "  * Packages:\n",
-    "  A package is namespace which contains multiple package/modules. It is a directory which contains a special file `__init__.py`\n",
+    "  A package is a namespace which contains multiple package/modules. It is a directory which contains a special file `__init__.py`\n",
     "  \n",
     "  * Libraries:\n",
     "  A library is a collection of various packages. There is no difference between package and python library conceptually.\n",
@@ -251,7 +251,10 @@
     "print (x)\n",
     "\n",
     "# Note the difference w.r.t python 2. In python 3 map retuns an iterator so you can do stuff like:\n",
-    "for i in map(square,range(5)): print(i)"
+    "for i in map(square,range(5)): print(i)\n",
+    "\n",
+    "# or\n",
+    "[i for i in map(square,range(6))]"
    ]
   },
   {
@@ -260,7 +263,7 @@
    "source": [
     "### filter\n",
     "\n",
-    "The filter function applies a predicate to each memmber of a collection, retaining only those members where the predicate is True"
+    "The filter function applies a predicate to each member of a collection, retaining only those members where the predicate is True"
    ]
   },
   {
@@ -275,13 +278,20 @@
     "print (list(filter(is_even, range(5))))"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "Combinations in sequence of HOF are obviously possible"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": null,
    "metadata": {},
    "outputs": [],
    "source": [
-    "list(map(square, filter(is_even, range(5))))\n"
+    "list(map(square, filter(is_even, range(5))))"
    ]
   },
   {