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diff --git a/bundles/org.simantics.scl.compiler/tests/org/simantics/scl/compiler/tests/scl/Formula.scl b/bundles/org.simantics.scl.compiler/tests/org/simantics/scl/compiler/tests/scl/Formula.scl
deleted file mode 100644
index 10eafb061..000000000
--- a/bundles/org.simantics.scl.compiler/tests/org/simantics/scl/compiler/tests/scl/Formula.scl
+++ /dev/null
@@ -1,131 +0,0 @@
-import "Prelude"
-
-data Formula a = TrueF
-               | FalseF
-               | XorF (Formula a) (Formula a)
-               | AndF (Formula a) (Formula a)
-               | ConditionF a
-               | NextF (Formula a)
-               | UntilF (Formula a) (Formula a)
-
-deriving instance (Ord a) => Ord (Formula a)
-
-instance (Show a) => Show (Formula a) where
-    sb <+ TrueF = sb << "true"
-    sb <+ FalseF = sb << "false"
-    sb <+ XorF a b = sb << "(" <+ a << " `XorF` " <+ b << ")"
-    sb <+ AndF a b = sb  << "(" <+ a << " &&& " <+ b << ")"
-    sb <+ ConditionF c = sb  <+ c
-    sb <+ NextF a = sb  << "(next " <+ a << ")"
-    sb <+ UntilF a b = sb << "(" <+ a << " `UntilF` " <+ b << ")"
-
-xorF FalseF f2 = f2
-xorF f1 FalseF = f1             
-xorF f1@(XorF h1 t1) f2@(XorF h2 t2) = 
-    let cmp = compare h1 h2 
-    in  if cmp < 0
-        then XorF h1 (xorF t1 f2)
-        else if cmp > 0
-        then XorF h2 (xorF f1 t2)
-        else xorF t1 t2
-xorF f1@(XorF h1 t1) f2 = 
-    let cmp = compare h1 f2
-    in  if cmp < 0
-        then XorF h1 (xorF t1 f2)
-        else if cmp > 0
-        then XorF f2 f1
-        else t1
-xorF f1 f2@(XorF h2 t2) =
-    let cmp = compare f1 h2
-    in  if cmp < 0
-        then XorF f1 f2
-        else if cmp > 0
-        then XorF h2 (xorF f1 t2)
-        else t2
-xorF f1 f2 =
-    let cmp = compare f1 f2
-    in  if cmp < 0
-        then XorF f1 f2
-        else if cmp > 0
-        then XorF f2 f1
-        else TrueF
-        
-notF f = xorF TrueF f
-
-TrueF &&& f2 = f2
-f1 &&& TrueF = f1
-FalseF &&& _ = FalseF
-_ &&& FalseF = FalseF
-XorF h1 t1 &&& f2 = xorF (h1 &&& f2) (t1 &&& f2)
-f1 &&& XorF h2 t2 = xorF (f1 &&& h2) (f1 &&& t2)
-f1@(AndF h1 t1) &&& f2@(AndF h2 t2) = 
-    let cmp = compare h1 h2 
-    in  if cmp < 0
-        then AndF h1 (t1 &&& f2)
-        else if cmp > 0
-        then AndF h2 (f1 &&& t2)
-        else AndF h1 (t1 &&& t2)
-f1@(AndF h1 t1) &&& f2 = 
-    let cmp = compare h1 f2
-    in  if cmp < 0
-        then AndF h1 (t1 &&& f2)
-        else if cmp > 0
-        then AndF f2 f1
-        else f1
-f1 &&& f2@(AndF h2 t2) =
-    let cmp = compare f1 h2
-    in  if cmp < 0
-        then AndF f1 f2
-        else if cmp > 0
-        then AndF h2 (f1 &&& t2)
-        else f2
-f1 &&& f2 =
-    let cmp = compare f1 f2
-    in  if cmp < 0
-        then AndF f1 f2
-        else if cmp > 0
-        then AndF f2 f1
-        else f1
-
-f1 ||| f2 = xorF (xorF f1 f2) (f1 &&& f2)
-        
-eval :: Ord a => (a -> <e> Boolean) -> Formula a -> <e> Formula a
-eval s TrueF = TrueF
-eval s FalseF = FalseF
-eval s (XorF f1 f2) = xorF (eval s f1) (eval s f2)
-eval s (AndF f1 f2) = eval s f1 &&& eval s f2
-eval s (ConditionF c) = if s c then TrueF else FalseF
-eval s (NextF f) = f
-eval s (UntilF f1 f2) = eval s f2 ||| (eval s f1 &&& UntilF f1 f2)
-
-// Concrete conditions
-
-data V = V String (Ref Boolean)
-
-instance Ord V where
-    compare (V a _) (V b _) = compare a b
-instance Show V where
-    sb <+ V a _ = sb <+ a 
-
-cond :: String -> Ref Boolean -> Formula V
-cond name ref = ConditionF (V name ref) 
-
-// Testing
-
-x = ref True
-y = ref False
-
-f = cond "x" x `UntilF` cond "y" y
-
-evalV = eval (\(V _ c) -> getRef c) 
-
-main = do
-    print (evalV f)
-    x := False
-    print (evalV f)
-    y = ref True
-    print (evalV f)
-    x := True
-    print (evalV f)
---
-()
\ No newline at end of file