- notation change for weight functions (following lambda)

[helm.git] / matita / matita / contribs / lambdadelta / basic_2 / unfold / delift.ma

diff --git a/matita/matita/contribs/lambdadelta/basic_2/unfold/delift.ma b/matita/matita/contribs/lambdadelta/basic_2/unfold/delift.ma
index e8ac23dae92a790cc0e89b95b997015bda8d41b4..cde52912280c1f68471cf5aea095728ce69b5239 100644 (file)
--- a/matita/matita/contribs/lambdadelta/basic_2/unfold/delift.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/unfold/delift.ma
@@ -102,7 +102,7 @@ qed-.
 
 (* Basic forward lemmas *****************************************************)
 
-lemma delift_fwd_tw: ∀L,T1,T2,d,e. L ⊢ ▼*[d, e] T1 ≡ T2 → #{T1} ≤ #{T2}.
+lemma delift_fwd_tw: ∀L,T1,T2,d,e. L ⊢ ▼*[d, e] T1 ≡ T2 → ♯{T1} ≤ ♯{T2}.
 #L #T1 #T2 #d #e * #T #HT1 #HT2
->(tw_lift … HT2) -T2 /2 width=4 by tpss_fwd_tw /
+>(tw_lift … HT2) -T2 /2 width=4 by tpss_fwd_tw/
 qed-.