include "basic_2/notation/relations/rdrop_4.ma".
include "basic_2/grammar/lenv_length.ma".
include "basic_2/grammar/cl_restricted_weight.ma".
include "basic_2/notation/relations/rdrop_4.ma".
include "basic_2/grammar/lenv_length.ma".
include "basic_2/grammar/cl_restricted_weight.ma".