diff --git a/haskell.html.markdown b/haskell.html.markdown
index 328da5c9..29712570 100644
--- a/haskell.html.markdown
+++ b/haskell.html.markdown
@@ -41,6 +41,8 @@ False
 -- Boolean operations
 not True -- False
 not False -- True
+True && False -- False
+True || False -- True
 1 == 1 -- True
 1 /= 1 -- False
 1 < 10 -- True