- lfpxs based on tc_lfxs

[helm.git] / matita / matita / contribs / lambdadelta / basic_2 / static / lfxs_length.ma

diff --git a/matita/matita/contribs/lambdadelta/basic_2/static/lfxs_length.ma b/matita/matita/contribs/lambdadelta/basic_2/static/lfxs_length.ma
index 01dd82cf42db896041fc8516a95986b8a5743b90..386e2ba8894c304c95fad915a7045eae17d4135a 100644 (file)
--- a/matita/matita/contribs/lambdadelta/basic_2/static/lfxs_length.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/static/lfxs_length.ma
@@ -19,6 +19,7 @@ include "basic_2/static/lfxs.ma".
 
 (* Forward lemmas with length for local environments ************************)
 
+(* Basic_2A1: uses: llpx_sn_fwd_length *)
 lemma lfxs_fwd_length: ∀R,L1,L2,T. L1 ⦻*[R, T] L2 → |L1| = |L2|.
 #R #L1 #L2 #T * /2 width=4 by lexs_fwd_length/
 qed-.