X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fstatic_2%2Fstatic%2Flsubf.ma;h=8e63f58d2731c9390fe1ae767dca6e9ad6effec5;hb=dc605ae41c39773f55381f241b1ed3db4acf5edd;hp=95cec9a8770af3854146b8f83915535b84073bc5;hpb=68b4f2490c12139c03760b39895619e63b0f38c9;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/static_2/static/lsubf.ma b/matita/matita/contribs/lambdadelta/static_2/static/lsubf.ma
index 95cec9a87..8e63f58d2 100644
--- a/matita/matita/contribs/lambdadelta/static_2/static/lsubf.ma
+++ b/matita/matita/contribs/lambdadelta/static_2/static/lsubf.ma
@@ -270,7 +270,7 @@ qed-.
 (* Basic forward lemmas *****************************************************)
 
 lemma lsubf_fwd_bind_tl:
-      ∀f1,f2,I,L1,L2. ❪L1.ⓘ[I],f1❫ ⫃𝐅+ ❪L2.ⓘ[I],f2❫ → ❪L1,⫱f1❫ ⫃𝐅+ ❪L2,⫱f2❫.
+      ∀f1,f2,I,L1,L2. ❪L1.ⓘ[I],f1❫ ⫃𝐅+ ❪L2.ⓘ[I],f2❫ → ❪L1,⫰f1❫ ⫃𝐅+ ❪L2,⫰f2❫.
 #f1 #f2 #I #L1 #L2 #H
 elim (pn_split f1) * #g1 #H0 destruct
 [ elim (lsubf_inv_push_sn … H) | elim (lsubf_inv_bind_sn … H) ] -H
@@ -360,8 +360,8 @@ lemma lsubf_refl_eq: ∀f1,f2,L. f1 ≡ f2 → ❪L,f1❫ ⫃𝐅+ ❪L,f2❫.
 /2 width=3 by lsubf_eq_repl_back2/ qed.
 
 lemma lsubf_bind_tl_dx:
-      ∀g1,f2,I,L1,L2. ❪L1,g1❫ ⫃𝐅+ ❪L2,⫱f2❫ →
-      ∃∃f1. ❪L1.ⓘ[I],f1❫ ⫃𝐅+ ❪L2.ⓘ[I],f2❫ & g1 = ⫱f1.
+      ∀g1,f2,I,L1,L2. ❪L1,g1❫ ⫃𝐅+ ❪L2,⫰f2❫ →
+      ∃∃f1. ❪L1.ⓘ[I],f1❫ ⫃𝐅+ ❪L2.ⓘ[I],f2❫ & g1 = ⫰f1.
 #g1 #f2 #I #L1 #L2 #H
 elim (pn_split f2) * #g2 #H2 destruct
 @ex2_intro [1,2,4,5: /2 width=2 by lsubf_push, lsubf_bind/ ] // (**) (* constructor needed *)
@@ -369,8 +369,8 @@ qed-.
 
 lemma lsubf_beta_tl_dx:
       ∀f,f0,g1,L1,V. L1 ⊢ 𝐅+❪V❫ ≘ f → f0 ⋓ f ≘ g1 →
-      ∀f2,L2,W. ❪L1,f0❫ ⫃𝐅+ ❪L2,⫱f2❫ →
-      ∃∃f1. ❪L1.ⓓⓝW.V,f1❫ ⫃𝐅+ ❪L2.ⓛW,f2❫ & ⫱f1 ⊆ g1.
+      ∀f2,L2,W. ❪L1,f0❫ ⫃𝐅+ ❪L2,⫰f2❫ →
+      ∃∃f1. ❪L1.ⓓⓝW.V,f1❫ ⫃𝐅+ ❪L2.ⓛW,f2❫ & ⫰f1 ⊆ g1.
 #f #f0 #g1 #L1 #V #Hf #Hg1 #f2
 elim (pn_split f2) * #x2 #H2 #L2 #W #HL12 destruct
 [ /3 width=4 by lsubf_push, sor_inv_sle_sn, ex2_intro/