frees_drops completed!

[helm.git] / matita / matita / contribs / lambdadelta / basic_2 / grammar / cl_restricted_weight.ma

diff --git a/matita/matita/contribs/lambdadelta/basic_2/grammar/cl_restricted_weight.ma b/matita/matita/contribs/lambdadelta/basic_2/grammar/cl_restricted_weight.ma
index fb2bcaf94cff0b3f8232069d9f7979a79f0a6acb..fcf56071bbee14bad8e47d0a2cfc38ef791a5466 100644 (file)
--- a/matita/matita/contribs/lambdadelta/basic_2/grammar/cl_restricted_weight.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/grammar/cl_restricted_weight.ma
@@ -25,7 +25,7 @@ interpretation "weight (restricted closure)" 'Weight L T = (rfw L T).
 
 (* Basic_1: was: flt_shift *)
 lemma rfw_shift: ∀p,I,K,V,T. ♯{K.ⓑ{I}V, T} < ♯{K, ⓑ{p,I}V.T}.
-normalize //
+normalize /2 width=1 by monotonic_le_plus_r/
 qed.
 
 lemma rfw_tpair_sn: ∀I,L,V,T. ♯{L, V} < ♯{L, ②{I}V.T}.