diff --git a/ipynb/DocstringFixpoint.ipynb b/ipynb/DocstringFixpoint.ipynb
index 26a61b8..1238686 100644
--- a/ipynb/DocstringFixpoint.ipynb
+++ b/ipynb/DocstringFixpoint.ipynb
@@ -235,7 +235,7 @@
    "id": "6e317bd3-dce8-4934-b90a-64a7b76d16d0",
    "metadata": {},
    "source": [
-    "I'm not very happy with the docstring for `Segment`. First, the docstring  is mixing up two things: what a \"segment\" is, and how it relates to the numbers \"in the list.\"  Second, `start` and `end` are better names than `a` and `b` for a segment.\n",
+    "I'm not very happy with the docstring for `Segment`. First, the docstring  is mixing up two things: what a \"segment\" is, and how it relates to the numbers \"in the list.\"  Second, `start` and `end` are better names than `a` and `b` for a segment's attributes.\n",
     "\n",
     "Here's another try at the **docstring**:"
    ]
@@ -258,7 +258,7 @@
    "id": "641aa3b9-f716-4a94-bca7-446a5218743e",
    "metadata": {},
    "source": [
-    "Now I'll write the **body** for  `Segment`. It will be a dataclass with member variables `start` and `end`, abd a magic `repr` method. (A full `Segment` class should probably implement the same methods as `range`, but they are not needed for this problem.)"
+    "Now I'll write the **body** for  `Segment`.(A full `Segment` class should implement all methods of `range`, but they are not needed for this problem.)"
    ]
   },
   {
@@ -335,7 +335,7 @@
    "id": "dfbfb16b-3779-4cdf-a9f1-97d1076e2c91",
    "metadata": {},
    "source": [
-    "This is pretty good, but I think it can be improved. The docstring has extraneous text (\"Design a program\") and could be more closely aligned with the body. And  it might be more modular to have a function to do one thing (add a single number to a list of segments), rather than a function that organizes all the numbers into a list of segments.  I'll edit the **docstring** first to reflect this change:"
+    "This is pretty good, but I think it can be improved. The docstring has extraneous text (\"Design a program\") and could be more closely aligned with the body. And  it might be more modular to have a function to do one thing (add a *single* number to a list of segments), rather than a function that organizes *all* the numbers into a list of segments.  I'll edit the **docstring** first to reflect this change:"
    ]
   },
   {
@@ -396,7 +396,7 @@
     "\n",
     "def add_to_segment_list(n: int, segment_list: List[Segment]) -> None:\n",
     "    \"\"\"Mutate `segment_list` to cover `n`. If `n` is one more than the end of the last Segment, \n",
-    "    then add `n` to that last segment. Otherwise append a new Segment (covering `n`) to `segment_list`.\"\"\"\n",
+    "    then add `n` to that last segment. Otherwise append a new Segment (for `n`) to `segment_list`.\"\"\"\n",
     "    if segment_list and segment_list[-1].end + 1 == n:\n",
     "        segment_list[-1].end = n\n",
     "    else:\n",