diff --git a/courses/tspl/2018/Assignment3.lagda.md b/courses/tspl/2018/Assignment3.lagda.md
index 3dbcd51c..2cafa1b2 100644
--- a/courses/tspl/2018/Assignment3.lagda.md
+++ b/courses/tspl/2018/Assignment3.lagda.md
@@ -275,7 +275,7 @@ plus′ : Term
 plus′ = μ′ + ⇒ ƛ′ m ⇒ ƛ′ n ⇒
           case′ m
             [zero⇒ n
-            |suc m ⇒ suc (+ · m · n) ]
+            |suc m ⇒ `suc (+ · m · n) ]
   where
   +  =  ` "+"
   m  =  ` "m"
diff --git a/courses/tspl/2018/Assignment4.lagda.md b/courses/tspl/2018/Assignment4.lagda.md
index 4e4ee525..e28dc4d9 100644
--- a/courses/tspl/2018/Assignment4.lagda.md
+++ b/courses/tspl/2018/Assignment4.lagda.md
@@ -1077,8 +1077,8 @@ Remember to indent all code by two spaces.
   ∥ ⊢↓ ⊢M ∥⁺           =  ∥ ⊢M ∥⁻
 
   ∥ ⊢ƛ ⊢N ∥⁻           =  DB.ƛ ∥ ⊢N ∥⁻
-  ∥ ⊢zero ∥⁻           =  DB.zero
-  ∥ ⊢suc ⊢M ∥⁻         =  DB.suc ∥ ⊢M ∥⁻
+  ∥ ⊢zero ∥⁻           =  DB.`zero
+  ∥ ⊢suc ⊢M ∥⁻         =  DB.`suc ∥ ⊢M ∥⁻
   ∥ ⊢case ⊢L ⊢M ⊢N ∥⁻  =  DB.case ∥ ⊢L ∥⁺ ∥ ⊢M ∥⁻ ∥ ⊢N ∥⁻
   ∥ ⊢μ ⊢M ∥⁻           =  DB.μ ∥ ⊢M ∥⁻
   ∥ ⊢↑ ⊢M refl ∥⁻      =  ∥ ⊢M ∥⁺
diff --git a/courses/tspl/2019/tspl2019.md b/courses/tspl/2019/tspl2019.md
index e5ceee47..60933813 100644
--- a/courses/tspl/2019/tspl2019.md
+++ b/courses/tspl/2019/tspl2019.md
@@ -26,9 +26,9 @@ Lectures take place Monday, Wednesday, and Friday in AT 5.07. (Room provisional.
  </tr>
  <tr>
   <td>1</td>
-  <td><b>16 Sep</b> <a href="{{ site.baseurl }}/part1/Naturals/">Naturals</a></td>
-  <td><b>18 Sep</b> <a href="{{ site.baseurl }}/part1/Induction/">Induction</a></td>
-  <td><b>20 Sep</b> <a href="{{ site.baseurl }}/part1/Relations/">Relations</a></td>
+  <td><b>16 Sep</b> <a href="{{ site.baseurl }}/Naturals/">Naturals</a></td>
+  <td><b>18 Sep</b> <a href="{{ site.baseurl }}/Induction/">Induction</a></td>
+  <td><b>20 Sep</b> <a href="{{ site.baseurl }}/Relations/">Relations</a></td>
  </tr>
  <tr>
   <td>2</td>
@@ -38,40 +38,40 @@ Lectures take place Monday, Wednesday, and Friday in AT 5.07. (Room provisional.
  </tr>
  <tr>
   <td>3</td>
-  <td><b>30 Oct</b> <a href="{{ site.baseurl }}/part1/Equality/">Equality</a> &amp;
+  <td><b>30 Oct</b> <a href="{{ site.baseurl }}/Equality/">Equality</a> &amp;
                     <a href="{{ site.baseurl }}/Isomorphism/">Isomorphism</a></td>
-  <td><b>2 Oct</b> <a href="{{ site.baseurl }}/part1/Connectives/">Connectives</a></td>
-  <td><b>4 Oct</b> <a href="{{ site.baseurl }}/part1/Negation/">Negation</a></td>
+  <td><b>2 Oct</b> <a href="{{ site.baseurl }}/Connectives/">Connectives</a></td>
+  <td><b>4 Oct</b> <a href="{{ site.baseurl }}/Negation/">Negation</a></td>
  </tr>
  <tr>
   <td>4</td>
-  <td><b>7 Oct</b> <a href="{{ site.baseurl }}/part1/Quantifiers/">Quantifiers</a></td>
-  <td><b>9 Oct</b> <a href="{{ site.baseurl }}/part1/Decidable/">Decidable</a></td>
+  <td><b>7 Oct</b> <a href="{{ site.baseurl }}/Quantifiers/">Quantifiers</a></td>
+  <td><b>9 Oct</b> <a href="{{ site.baseurl }}/Decidable/">Decidable</a></td>
   <td><b>11 Oct</b> (tutorial only)</td>
  </tr>
  <tr>
   <td>5</td>
-  <td><b>14 Oct</b> <a href="{{ site.baseurl }}/part1/Lists/">Lists</a></td>
+  <td><b>14 Oct</b> <a href="{{ site.baseurl }}/Lists/">Lists</a></td>
   <td><b>16 Oct</b> <!-- (tutorial only) --></td>
-  <td><b>18 Oct</b> <!-- <a href="{{ site.baseurl }}/part1/Lists/">Lists</a> --></td>
+  <td><b>18 Oct</b> <!-- <a href="{{ site.baseurl }}/Lists/">Lists</a> --></td>
  </tr>
  <tr>
   <td>6</td>
-  <td><b>21 Oct</b> <!-- <a href="{{ site.baseurl }}/part1/Lambda/">Lambda</a> --></td>
+  <td><b>21 Oct</b> <!-- <a href="{{ site.baseurl }}/Lambda/">Lambda</a> --></td>
   <td><b>23 Oct</b> <!-- (no class) --></td>
-  <td><b>25 Oct</b> <!-- <a href="{{ site.baseurl }}/part1/Properties/">Properties</a> --></td>
+  <td><b>25 Oct</b> <!-- <a href="{{ site.baseurl }}/Properties/">Properties</a> --></td>
  </tr>
  <tr>
   <td>7</td>
-  <td><b>28 Oct</b> <!-- <a href="{{ site.baseurl }}/part1/DeBruijn/">DeBruijn</a> --></td>
-  <td><b>30 Oct</b> <!-- <a href="{{ site.baseurl }}/part1/More/">More</a> --></td>
-  <td><b>1 Nov</b> <!-- <a href="{{ site.baseurl }}/part1/Inference/">Inference</a> --></td>
+  <td><b>28 Oct</b> <!-- <a href="{{ site.baseurl }}/DeBruijn/">DeBruijn</a> --></td>
+  <td><b>30 Oct</b> <!-- <a href="{{ site.baseurl }}/More/">More</a> --></td>
+  <td><b>1 Nov</b> <!-- <a href="{{ site.baseurl }}/Inference/">Inference</a> --></td>
  </tr>
  <tr>
   <td>8</td>
   <td><b>4 Nov</b> <!-- (no class) --></td>
   <td><b>6 Nov</b> <!-- (tutorial only) --></td>
-  <td><b>8 Nov</b> <!-- <a href="{{ site.baseurl }}/part1/Untyped/">Untyped</a> --></td>
+  <td><b>8 Nov</b> <!-- <a href="{{ site.baseurl }}/Untyped/">Untyped</a> --></td>
  </tr>
  <tr>
   <td>9</td>
diff --git a/index.md b/index.md
index 9f0f35f9..3d16aea2 100644
--- a/index.md
+++ b/index.md
@@ -49,7 +49,8 @@ Pull requests are encouraged.
 
   - Courses taught from the textbook:
     * Philip Wadler, University of Edinburgh,
-      [2018]({{ site.baseurl }}/TSPL/2018/)
+      [2018]({{ site.baseurl }}/TSPL/2018/),
+	  [2019]({{ site.baseurl }}/TSPL/2019/)
     * David Darais, University of Vermont,
       [2018](http://david.darais.com/courses/fa2018-cs295A/)
     * John Leo, Google Seattle, 2018--2019