update in ground_2, static_2, basic_2, apps_2, alpha_1

[helm.git] / matita / matita / contribs / lambdadelta / static_2 / syntax / bind_weight.ma

diff --git a/matita/matita/contribs/lambdadelta/static_2/syntax/bind_weight.ma b/matita/matita/contribs/lambdadelta/static_2/syntax/bind_weight.ma
index c1f512f33338f8ec37f66cff654e0fd95adf3841..2cf1bc17099bd5e19ea558cfba80eeecfb61adcb 100644 (file)
--- a/matita/matita/contribs/lambdadelta/static_2/syntax/bind_weight.ma
+++ b/matita/matita/contribs/lambdadelta/static_2/syntax/bind_weight.ma
@@ -19,13 +19,13 @@ include "static_2/syntax/bind.ma".
 
 rec definition bw I ≝ match I with
 [ BUnit _   ⇒ 1
-| BPair _ V ⇒ ♯{V}
+| BPair _ V ⇒ ♯❨V❩
 ].
 
 interpretation "weight (binder for local environments)" 'Weight I = (bw I).
 
 (* Basic properties *********************************************************)
 
-lemma bw_pos: ∀I. 1 ≤ ♯{I}.
+lemma bw_pos: ∀I. 1 ≤ ♯❨I❩.
 * //
 qed.