include "basic_2/static/lfxs_length.ma".
include "basic_2/rt_transition/lfpx.ma".
-(* UNCOUNTED PARALLEL RT-TRANSITION FOR LOCAL ENV.S ON REFERRED ENTRIES *****)
+(* UNBOUND PARALLEL RT-TRANSITION FOR REFERRED LOCAL ENVIRONMENTS ***********)
(* Forward lemmas with length for local environments ************************)
-(* Basic_2A1: uses: lpx_fwd_length *)
lemma lfpx_fwd_length: ∀h,G,L1,L2,T. ⦃G, L1⦄ ⊢ ⬈[h, T] L2 → |L1| = |L2|.
/2 width=3 by lfxs_fwd_length/ qed-.