X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fstatic_2%2Fsyntax%2Fcl_restricted_weight.ma;h=8340649d8175b97d27fc17edac191b4d5021022d;hp=bc5b92945c39031294e86652526d6d4c3595a50d;hb=bd53c4e895203eb049e75434f638f26b5a161a2b;hpb=3b7b8afcb429a60d716d5226a5b6ab0d003228b1

diff --git a/matita/matita/contribs/lambdadelta/static_2/syntax/cl_restricted_weight.ma b/matita/matita/contribs/lambdadelta/static_2/syntax/cl_restricted_weight.ma
index bc5b92945..8340649d8 100644
--- a/matita/matita/contribs/lambdadelta/static_2/syntax/cl_restricted_weight.ma
+++ b/matita/matita/contribs/lambdadelta/static_2/syntax/cl_restricted_weight.ma
@@ -17,34 +17,34 @@ include "static_2/syntax/lenv_weight.ma".
 
 (* WEIGHT OF A RESTRICTED CLOSURE *******************************************)
 
-definition rfw: lenv → term → ? ≝ λL,T. ♯{L} + ♯{T}.
+definition rfw: lenv → term → ? ≝ λL,T. ♯❨L❩ + ♯❨T❩.
 
 interpretation "weight (restricted closure)" 'Weight L T = (rfw L T).
 
 (* Basic properties *********************************************************)
 
 (* Basic_1: was: flt_shift *)
-lemma rfw_shift: ∀p,I,K,V,T. ♯{K.ⓑ{I}V,T} < ♯{K,ⓑ{p,I}V.T}.
+lemma rfw_shift: ∀p,I,K,V,T. ♯❨K.ⓑ[I]V,T❩ < ♯❨K,ⓑ[p,I]V.T❩.
 normalize /2 width=1 by monotonic_le_plus_r/
 qed.
 
-lemma rfw_clear: ∀p,I1,I2,K,V,T. ♯{K.ⓤ{I1},T} < ♯{K,ⓑ{p,I2}V.T}.
+lemma rfw_clear: ∀p,I1,I2,K,V,T. ♯❨K.ⓤ[I1],T❩ < ♯❨K,ⓑ[p,I2]V.T❩.
 normalize /4 width=1 by monotonic_le_plus_r, le_S_S/
 qed.
 
-lemma rfw_tpair_sn: ∀I,L,V,T. ♯{L,V} < ♯{L,②{I}V.T}.
+lemma rfw_tpair_sn: ∀I,L,V,T. ♯❨L,V❩ < ♯❨L,②[I]V.T❩.
 normalize in ⊢ (?→?→?→?→?%%); //
 qed.
 
-lemma rfw_tpair_dx: ∀I,L,V,T. ♯{L,T} < ♯{L,②{I}V.T}.
+lemma rfw_tpair_dx: ∀I,L,V,T. ♯❨L,T❩ < ♯❨L,②[I]V.T❩.
 normalize in ⊢ (?→?→?→?→?%%); //
 qed.
 
-lemma rfw_lpair_sn: ∀I,L,V,T. ♯{L,V} < ♯{L.ⓑ{I}V,T}.
+lemma rfw_lpair_sn: ∀I,L,V,T. ♯❨L,V❩ < ♯❨L.ⓑ[I]V,T❩.
 normalize /3 width=1 by monotonic_lt_plus_l, monotonic_le_plus_r/
 qed.
 
-lemma rfw_lpair_dx: ∀I,L,V,T. ♯{L,T} < ♯{L.ⓑ{I}V,T}.
+lemma rfw_lpair_dx: ∀I,L,V,T. ♯❨L,T❩ < ♯❨L.ⓑ[I]V,T❩.
 normalize /3 width=1 by monotonic_lt_plus_l, monotonic_le_plus_r/
 qed.