+include "llt/defs.ma".
+
+include "llt/props.ma".
+
+include "aprem/defs.ma".
+
+include "aprem/props.ma".
+
+include "gz/defs.ma".
+
+include "gz/props.ma".
+
+include "arity/defs.ma".
+
+include "arity/fwd.ma".
+
+include "arity/props.ma".
+
+include "arity/subst0.ma".
+
+include "arity/lift1.ma".
+
+include "arity/cimp.ma".
+
+include "arity/aprem.ma".
+