X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Frt_computation%2Fcpxs_fqus.ma;h=a0e20355f67cb9ee21e149561c865d59b0cb364b;hp=d4b4d6520560719658f3444ba2c3a6dd1006cf7e;hb=e23331eef5817eaa6c5e1c442d1d6bbb18650573;hpb=b118146b97959e6a6dde18fdd014b8e1e676a2d1

diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/cpxs_fqus.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/cpxs_fqus.ma
index d4b4d6520..a0e20355f 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/cpxs_fqus.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/cpxs_fqus.ma
@@ -59,11 +59,11 @@ qed-.
 
 (* Note: a proof based on fqu_cpx_trans_tneqx might exist *)
 (* Basic_2A1: uses: fqu_cpxs_trans_neq *)
-lemma fqu_cpxs_trans_tneqx (b):
+lemma fqu_cpxs_trans_tneqg (S) (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❫.
-#b #G1 #G2 #L1 #L2 #T1 #T2 #H elim H -G1 -G2 -L1 -L2 -T1 -T2
+      ∀U2. ❪G2,L2❫ ⊢ T2 ⬈* U2 → (T2 ≛[S] U2 → ⊥) →
+      ∃∃U1. ❪G1,L1❫ ⊢ T1 ⬈* U1 & T1 ≛[S] U1 → ⊥ & ❪G1,L1,U1❫ ⬂[b] ❪G2,L2,U2❫.
+#S #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 cpxs_delta, fqu_drop/
@@ -72,59 +72,59 @@ lemma fqu_cpxs_trans_tneqx (b):
   ]
 | #I #G #L #V1 #T #V2 #HV12 #H0 @(ex3_intro … (②[I]V2.T))
   [1,3: /2 width=4 by fqu_pair_sn, cpxs_pair_sn/
-  | #H elim (teqx_inv_pair … H) -H /2 width=1 by/
+  | #H elim (teqg_inv_pair … H) -H /2 width=1 by/
   ]
 | #p #I #G #L #V #T1 #Hb #T2 #HT12 #H0 @(ex3_intro … (ⓑ[p,I]V.T2))
   [1,3: /2 width=4 by fqu_bind_dx, cpxs_bind/
-  | #H elim (teqx_inv_pair … H) -H /2 width=1 by/
+  | #H elim (teqg_inv_pair … H) -H /2 width=1 by/
   ]
 | #p #I #G #L #V #T1 #Hb #T2 #HT12 #H0 @(ex3_intro … (ⓑ[p,I]V.T2))
   [1,3: /4 width=4 by lsubr_cpxs_trans, cpxs_bind, lsubr_unit, fqu_clear/
-  | #H elim (teqx_inv_pair … H) -H /2 width=1 by/
+  | #H elim (teqg_inv_pair … H) -H /2 width=1 by/
   ]
 | #I #G #L #V #T1 #T2 #HT12 #H0 @(ex3_intro … (ⓕ[I]V.T2))
   [1,3: /2 width=4 by fqu_flat_dx, cpxs_flat/
-  | #H elim (teqx_inv_pair … H) -H /2 width=1 by/
+  | #H elim (teqg_inv_pair … H) -H /2 width=1 by/
   ]
 | #I #G #L #T1 #U1 #HTU1 #T2 #HT12 #H0
   elim (cpxs_lifts_sn … HT12 (Ⓣ) … (L.ⓘ[I]) … HTU1) -HT12
-  /4 width=6 by fqu_drop, drops_refl, drops_drop, teqx_inv_lifts_bi, ex3_intro/
+  /4 width=6 by fqu_drop, drops_refl, drops_drop, teqg_inv_lifts_bi, ex3_intro/
 ]
 qed-.
 
 (* Basic_2A1: uses: fquq_cpxs_trans_neq *)
-lemma fquq_cpxs_trans_tneqx (b):
+lemma fquq_cpxs_trans_tneqg (S) (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❫.
-#b #G1 #G2 #L1 #L2 #T1 #T2 #H12 elim H12 -H12
-[ #H12 #U2 #HTU2 #H elim (fqu_cpxs_trans_tneqx … H12 … HTU2 H) -T2
+      ∀U2. ❪G2,L2❫ ⊢ T2 ⬈* U2 → (T2 ≛[S] U2 → ⊥) →
+      ∃∃U1. ❪G1,L1❫ ⊢ T1 ⬈* U1 & T1 ≛[S] U1 → ⊥ & ❪G1,L1,U1❫ ⬂⸮[b] ❪G2,L2,U2❫.
+#S #b #G1 #G2 #L1 #L2 #T1 #T2 #H12 elim H12 -H12
+[ #H12 #U2 #HTU2 #H elim (fqu_cpxs_trans_tneqg … H12 … HTU2 H) -T2
   /3 width=4 by fqu_fquq, ex3_intro/
 | * #HG #HL #HT destruct /3 width=4 by ex3_intro/
 ]
 qed-.
 
 (* Basic_2A1: uses: fqup_cpxs_trans_neq *)
-lemma fqup_cpxs_trans_tneqx (b):
+lemma fqup_cpxs_trans_tneqg (S) (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❫.
-#b #G1 #G2 #L1 #L2 #T1 #T2 #H @(fqup_ind_dx … H) -G1 -L1 -T1
-[ #G1 #L1 #T1 #H12 #U2 #HTU2 #H elim (fqu_cpxs_trans_tneqx … H12 … HTU2 H) -T2
+      ∀U2. ❪G2,L2❫ ⊢ T2 ⬈* U2 → (T2 ≛[S] U2 → ⊥) →
+      ∃∃U1. ❪G1,L1❫ ⊢ T1 ⬈* U1 & T1 ≛[S] U1 → ⊥ & ❪G1,L1,U1❫ ⬂+[b] ❪G2,L2,U2❫.
+#S #b #G1 #G2 #L1 #L2 #T1 #T2 #H @(fqup_ind_dx … H) -G1 -L1 -T1
+[ #G1 #L1 #T1 #H12 #U2 #HTU2 #H elim (fqu_cpxs_trans_tneqg … H12 … HTU2 H) -T2
   /3 width=4 by fqu_fqup, ex3_intro/
 | #G #G1 #L #L1 #T #T1 #H1 #_ #IH12 #U2 #HTU2 #H elim (IH12 … HTU2 H) -T2
-  #U1 #HTU1 #H #H12 elim (fqu_cpxs_trans_tneqx … H1 … HTU1 H) -T1
+  #U1 #HTU1 #H #H12 elim (fqu_cpxs_trans_tneqg … H1 … HTU1 H) -T1
   /3 width=8 by fqup_strap2, ex3_intro/
 ]
 qed-.
 
 (* Basic_2A1: uses: fqus_cpxs_trans_neq *)
-lemma fqus_cpxs_trans_tneqx (b):
+lemma fqus_cpxs_trans_tneqg (S) (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❫.
-#b #G1 #G2 #L1 #L2 #T1 #T2 #H12 #U2 #HTU2 #H elim (fqus_inv_fqup … H12) -H12
-[ #H12 elim (fqup_cpxs_trans_tneqx … H12 … HTU2 H) -T2
+      ∀U2. ❪G2,L2❫ ⊢ T2 ⬈* U2 → (T2 ≛[S] U2 → ⊥) →
+      ∃∃U1. ❪G1,L1❫ ⊢ T1 ⬈* U1 & T1 ≛[S] U1 → ⊥ & ❪G1,L1,U1❫ ⬂*[b] ❪G2,L2,U2❫.
+#S #b #G1 #G2 #L1 #L2 #T1 #T2 #H12 #U2 #HTU2 #H elim (fqus_inv_fqup … H12) -H12
+[ #H12 elim (fqup_cpxs_trans_tneqg … H12 … HTU2 H) -T2
   /3 width=4 by fqup_fqus, ex3_intro/
 | * #HG #HL #HT destruct /3 width=4 by ex3_intro/
 ]