--- /dev/null
+implementation module builtin
+
+import Data.Func
+import check
+
+builtin :: [([Char], Scheme)]
+builtin =
+ [(['_if'], Forall [['_ift']] $ TBool --> TVar ['_ift'] --> TVar ['_ift'] --> TVar ['_ift'])
+ ,(['_eq'], Forall [['_eq']] $ TInt --> TInt --> TBool)
+ ,(['_mul'], Forall [['_mul']] $ TInt --> TInt --> TInt)
+ ,(['_add'], Forall [['_add']] $ TInt --> TInt --> TInt)
+ ,(['_sub'], Forall [['_sub']] $ TInt --> TInt --> TInt)
+ ]