include "drop1/props.ma".
+include "drop1/getl.ma".
+
include "clear/defs.ma".
include "clear/fwd.ma".
include "getl/drop.ma".
+include "getl/getl.ma".
+
include "getl/dec.ma".
include "getl/flt.ma".
include "cimp/defs.ma".
+include "cimp/props.ma".
+
+include "subst0/defs.ma".
+
+include "subst0/fwd.ma".
+
+include "subst0/props.ma".
+
+include "subst0/subst0.ma".
+
+include "subst0/tlt.ma".
+
+include "subst0/dec.ma".
+
include "G/defs.ma".
include "next_plus/defs.ma".