X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fstatic_2%2Fsyntax%2Fcl_weight.ma;h=515e72a9f7c60e115ff60eb7437f58e4c66bc547;hp=e87996c23e7e8835357ce58e0acffdf5b62d0098;hb=156d974ad89aa04a086fdf9d332c8b04adf279fd;hpb=8fe4dc148d50a0352313633bea61441bc817afbf

diff --git a/matita/matita/contribs/lambdadelta/static_2/syntax/cl_weight.ma b/matita/matita/contribs/lambdadelta/static_2/syntax/cl_weight.ma
index e87996c23..515e72a9f 100644
--- a/matita/matita/contribs/lambdadelta/static_2/syntax/cl_weight.ma
+++ b/matita/matita/contribs/lambdadelta/static_2/syntax/cl_weight.ma
@@ -25,26 +25,24 @@ interpretation "weight (closure)" 'Weight G L T = (fw G L T).
 
 (* Basic properties *********************************************************)
 
+lemma fw_unfold (G) (L) (T): ♯❨L❩ + ♯❨T❩ = ♯❨G,L,T❩.
+// qed.
+
 (* Basic_1: was: flt_shift *)
 lemma fw_shift: ∀p,I,G,K,V,T. ♯❨G,K.ⓑ[I]V,T❩ < ♯❨G,K,ⓑ[p,I]V.T❩.
-normalize /2 width=1 by nle_plus_bi_sn/
-qed.
+/2 width=1 by plt_plus_bi_sn/ qed.
 
 lemma fw_clear: ∀p,I1,I2,G,K,V,T. ♯❨G,K.ⓤ[I1],T❩ < ♯❨G,K,ⓑ[p,I2]V.T❩.
-normalize /4 width=1 by nle_plus_bi_sn, nle_succ_bi/
-qed.
+/2 width=1 by plt_plus_bi_sn/ qed.
 
 lemma fw_tpair_sn: ∀I,G,L,V,T. ♯❨G,L,V❩ < ♯❨G,L,②[I]V.T❩.
-normalize in ⊢ (?→?→?→?→?→?%%); //
-qed.
+/2 width=1 by plt_plus_bi_sn/ qed.
 
 lemma fw_tpair_dx: ∀I,G,L,V,T. ♯❨G,L,T❩ < ♯❨G,L,②[I]V.T❩.
-normalize in ⊢ (?→?→?→?→?→?%%); //
-qed.
+/2 width=1 by plt_plus_bi_sn/ qed.
 
 lemma fw_lpair_sn: ∀I,G,L,V,T. ♯❨G,L,V❩ < ♯❨G,L.ⓑ[I]V,T❩.
-normalize /3 width=1 by nlt_plus_bi_dx, nle_plus_bi_sn/
-qed.
+// qed.
 
 (* Basic_1: removed theorems 7:
             flt_thead_sx flt_thead_dx flt_trans