X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Frt_transition%2Fcpx_fqus.ma;h=29ec0f0517f565ee8e51ca64518eac42649745ea;hb=b118146b97959e6a6dde18fdd014b8e1e676a2d1;hp=31dffbb2a64aa8f927ab70dce1f631f046f5ad42;hpb=3c7b4071a9ac096b02334c1d47468776b948e2de;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_transition/cpx_fqus.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_transition/cpx_fqus.ma
index 31dffbb2a..29ec0f051 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/rt_transition/cpx_fqus.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/rt_transition/cpx_fqus.ma
@@ -72,13 +72,13 @@ qed-.
 
 lemma fqu_cpx_trans_tneqx (b):
       ∀G1,G2,L1,L2,T1,T2. ❪G1,L1,T1❫ ⬂[b] ❪G2,L2,T2❫ →
-      ∀U2. ❪G2,L2❫ ⊢ T2 ⬈ U2 → (T2 ≛ U2 → ⊥) →
-      ∃∃U1. ❪G1,L1❫ ⊢ T1 ⬈ U1 & T1 ≛ U1 → ⊥ & ❪G1,L1,U1❫ ⬂[b] ❪G2,L2,U2❫.
+      ∀U2. ❪G2,L2❫ ⊢ T2 ⬈ U2 → (T2 ≅ U2 → ⊥) →
+      ∃∃U1. ❪G1,L1❫ ⊢ T1 ⬈ U1 & T1 ≅ U1 → ⊥ & ❪G1,L1,U1❫ ⬂[b] ❪G2,L2,U2❫.
 #b #G1 #G2 #L1 #L2 #T1 #T2 #H elim H -G1 -G2 -L1 -L2 -T1 -T2
 [ #I #G #L #V1 #V2 #HV12 #_ elim (lifts_total V2 𝐔❨1❩)
   #U2 #HVU2 @(ex3_intro … U2)
   [1,3: /3 width=7 by cpx_delta, fqu_drop/
-  | #H lapply (teqx_inv_lref1 … H) -H
+  | #H lapply (teqg_inv_lref1 … H) -H
     #H destruct /2 width=5 by lifts_inv_lref2_uni_lt/
   ]
 | #I #G #L #V1 #T #V2 #HV12 #H0 @(ex3_intro … (②[I]V2.T))
@@ -105,8 +105,8 @@ qed-.
 
 lemma fquq_cpx_trans_tneqx (b):
       ∀G1,G2,L1,L2,T1,T2. ❪G1,L1,T1❫ ⬂⸮[b] ❪G2,L2,T2❫ →
-      ∀U2. ❪G2,L2❫ ⊢ T2 ⬈ U2 → (T2 ≛ U2 → ⊥) →
-      ∃∃U1. ❪G1,L1❫ ⊢ T1 ⬈ U1 & T1 ≛ U1 → ⊥ & ❪G1,L1,U1❫ ⬂⸮[b] ❪G2,L2,U2❫.
+      ∀U2. ❪G2,L2❫ ⊢ T2 ⬈ U2 → (T2 ≅ U2 → ⊥) →
+      ∃∃U1. ❪G1,L1❫ ⊢ T1 ⬈ U1 & T1 ≅ U1 → ⊥ & ❪G1,L1,U1❫ ⬂⸮[b] ❪G2,L2,U2❫.
 #b #G1 #G2 #L1 #L2 #T1 #T2 #H12 elim H12 -H12
 [ #H12 #U2 #HTU2 #H elim (fqu_cpx_trans_tneqx … H12 … HTU2 H) -T2
   /3 width=4 by fqu_fquq, ex3_intro/
@@ -116,8 +116,8 @@ qed-.
 
 lemma fqup_cpx_trans_tneqx (b):
       ∀G1,G2,L1,L2,T1,T2. ❪G1,L1,T1❫ ⬂+[b] ❪G2,L2,T2❫ →
-      ∀U2. ❪G2,L2❫ ⊢ T2 ⬈ U2 → (T2 ≛ U2 → ⊥) →
-      ∃∃U1. ❪G1,L1❫ ⊢ T1 ⬈ U1 & T1 ≛ U1 → ⊥ & ❪G1,L1,U1❫ ⬂+[b] ❪G2,L2,U2❫.
+      ∀U2. ❪G2,L2❫ ⊢ T2 ⬈ U2 → (T2 ≅ U2 → ⊥) →
+      ∃∃U1. ❪G1,L1❫ ⊢ T1 ⬈ U1 & T1 ≅ U1 → ⊥ & ❪G1,L1,U1❫ ⬂+[b] ❪G2,L2,U2❫.
 #b #G1 #G2 #L1 #L2 #T1 #T2 #H @(fqup_ind_dx … H) -G1 -L1 -T1
 [ #G1 #L1 #T1 #H12 #U2 #HTU2 #H elim (fqu_cpx_trans_tneqx … H12 … HTU2 H) -T2
   /3 width=4 by fqu_fqup, ex3_intro/
@@ -129,8 +129,8 @@ qed-.
 
 lemma fqus_cpx_trans_tneqx (b):
       ∀G1,G2,L1,L2,T1,T2. ❪G1,L1,T1❫ ⬂*[b] ❪G2,L2,T2❫ →
-      ∀U2. ❪G2,L2❫ ⊢ T2 ⬈ U2 → (T2 ≛ U2 → ⊥) →
-      ∃∃U1. ❪G1,L1❫ ⊢ T1 ⬈ U1 & T1 ≛ U1 → ⊥ & ❪G1,L1,U1❫ ⬂*[b] ❪G2,L2,U2❫.
+      ∀U2. ❪G2,L2❫ ⊢ T2 ⬈ U2 → (T2 ≅ U2 → ⊥) →
+      ∃∃U1. ❪G1,L1❫ ⊢ T1 ⬈ U1 & T1 ≅ U1 → ⊥ & ❪G1,L1,U1❫ ⬂*[b] ❪G2,L2,U2❫.
 #b #G1 #G2 #L1 #L2 #T1 #T2 #H12 #U2 #HTU2 #H elim (fqus_inv_fqup … H12) -H12
 [ #H12 elim (fqup_cpx_trans_tneqx … H12 … HTU2 H) -T2
   /3 width=4 by fqup_fqus, ex3_intro/