Checkpoint

src/interpreter/Preprocessor.kt

@@ -65,6 +65,7 @@ open class Preprocessor {
                     Functor.of("clause/2") -> ClauseOp(args[0] as Head, args[1] as Body)
                     Functor.of("atomic/1") -> AtomicOp(args[0])
                     Functor.of("compound/1") -> CompoundOp(args[0])
+                    Functor.of("univ/2") -> Univ(args[0], args[1])
 
                     // Arithmetic
                     Functor.of("inf/0") -> Integer(Int.MAX_VALUE)