diff --git a/tests/et.8pus b/tests/et.8pus
new file mode 100644
index 0000000..90a3ebd
--- /dev/null
+++ b/tests/et.8pus
@@ -0,0 +1,26 @@
+( (A /\ B) /\ C -> A /\ (B /\ C) ) /\ ( A /\ (B /\ C) -> (A /\ B) /\ C )
+split.
+intro et.
+elim et.
+intro ab.
+intro c.
+elim ab.
+intro a.
+intro b.
+split.
+assumption.
+split.
+assumption.
+assumption.
+intro et.
+elim et.
+intro a.
+intro bc.
+elim bc.
+intro b.
+intro c.
+split.
+split.
+assumption.
+assumption.
+assumption.
diff --git a/tests/ou.8pus b/tests/ou.8pus
new file mode 100644
index 0000000..2ae8cc6
--- /dev/null
+++ b/tests/ou.8pus
@@ -0,0 +1,32 @@
+(A \/ (B \/ C) -> (A \/ B) \/ C) /\ ((A \/ B) \/ C -> A \/ (B \/ C))
+split.
+intro ou.
+elim ou.
+intro a.
+left.
+left.
+assumption.
+intro bc.
+elim bc.
+intro b.
+left.
+right.
+assumption.
+intro c.
+right.
+assumption.
+intro ou.
+elim ou.
+intro ab.
+elim ab.
+intro a.
+left.
+assumption.
+intro b.
+right.
+left.
+assumption.
+intro c.
+right.
+right.
+assumption.