include "basic_2A/substitution/lift_neg.ma".
include "basic_2A/substitution/drop_drop.ma".
include "basic_2A/multiple/llpx_sn.ma".
include "basic_2A/substitution/lift_neg.ma".
include "basic_2A/substitution/drop_drop.ma".
include "basic_2A/multiple/llpx_sn.ma".