Add ch04, start working on ch05.

2018-01-18 16:30:58 -08:00
parent 50dbc5f0c0
commit 5f9633349c
11 changed files with 318 additions and 3 deletions
--- a/lpn/ch02/notes.md
+++ b/lpn/ch02/notes.md
@@ -1,4 +1,4 @@
-## Unification
+## Chapter 2: Unification

 Two terms unify if they are
 1. The same term