update in basic_2

[helm.git] / matita / matita / contribs / lambdadelta / basic_2 / rt_computation / csx_cpxs.ma

diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/csx_cpxs.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/csx_cpxs.ma
index 8d066e53b8b3b302d63805fa4cba396d5864ee72..a709858ad73ab35a73265c2ed735aeaf9ffe41cc 100644 (file)
--- a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/csx_cpxs.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/csx_cpxs.ma
@@ -22,7 +22,7 @@ include "basic_2/rt_computation/csx_csx.ma".
 
 (* Basic_1: was just: sn3_intro *)
 lemma csx_intro_cpxs: ∀h,o,G,L,T1.
-                      (â\88\80T2. â¦\83G, Lâ¦\84 â\8a¢ T1 â¬\88*[h] T2 â\86\92 (T1 â\89¡[h, o] T2 → ⊥) → ⦃G, L⦄ ⊢ ⬈*[h, o] 𝐒⦃T2⦄) →
+                      (â\88\80T2. â¦\83G, Lâ¦\84 â\8a¢ T1 â¬\88*[h] T2 â\86\92 (T1 â\89\9b[h, o] T2 → ⊥) → ⦃G, L⦄ ⊢ ⬈*[h, o] 𝐒⦃T2⦄) →
                       ⦃G, L⦄ ⊢ ⬈*[h, o] 𝐒⦃T1⦄.
 /4 width=1 by cpx_cpxs, csx_intro/ qed-.
 
@@ -37,10 +37,10 @@ qed-.
 
 lemma csx_ind_cpxs_tdeq: ∀h,o,G,L. ∀R:predicate term.
                          (∀T1. ⦃G, L⦄ ⊢ ⬈*[h, o] 𝐒⦃T1⦄ →
-                               (â\88\80T2. â¦\83G, Lâ¦\84 â\8a¢ T1 â¬\88*[h] T2 â\86\92 (T1 â\89¡[h, o] T2 → ⊥) → R T2) → R T1
+                               (â\88\80T2. â¦\83G, Lâ¦\84 â\8a¢ T1 â¬\88*[h] T2 â\86\92 (T1 â\89\9b[h, o] T2 → ⊥) → R T2) → R T1
                          ) →
                          ∀T1. ⦃G, L⦄ ⊢ ⬈*[h, o] 𝐒⦃T1⦄ →
-                         â\88\80T0. â¦\83G, Lâ¦\84 â\8a¢ T1 â¬\88*[h] T0 â\86\92 â\88\80T2. T0 â\89¡[h, o] T2 → R T2.
+                         â\88\80T0. â¦\83G, Lâ¦\84 â\8a¢ T1 â¬\88*[h] T0 â\86\92 â\88\80T2. T0 â\89\9b[h, o] T2 → R T2.
 #h #o #G #L #R #IH #T1 #H @(csx_ind … H) -T1
 #T1 #HT1 #IH1 #T0 #HT10 #T2 #HT02
 @IH -IH /3 width=3 by csx_cpxs_trans, csx_tdeq_trans/ -HT1 #V2 #HTV2 #HnTV2
@@ -50,9 +50,9 @@ lapply (tdneq_tdeq_canc_dx … H … HV02) -H #HnTV0
 elim (tdeq_dec h o T1 T0) #H
 [ lapply (tdeq_tdneq_trans … H … HnTV0) -H -HnTV0 #Hn10
   lapply (cpxs_trans … HT10 … HTV0) -T0 #H10
-  elim (cpxs_tdneq_inv_step_sn … H10 …  Hn10) -H10 -Hn10
+  elim (cpxs_tdneq_fwd_step_sn … H10 …  Hn10) -H10 -Hn10
   /3 width=8 by tdeq_trans/
-| elim (cpxs_tdneq_inv_step_sn … HT10 … H) -HT10 -H #T #V #HT1 #HnT1 #HTV #HVT0
+| elim (cpxs_tdneq_fwd_step_sn … HT10 … H) -HT10 -H #T #V #HT1 #HnT1 #HTV #HVT0
   elim (tdeq_cpxs_trans … HVT0 … HTV0) -T0
   /3 width=8 by cpxs_trans, tdeq_trans/
 ]
@@ -61,7 +61,7 @@ qed-.
 (* Basic_2A1: was: csx_ind_alt *)
 lemma csx_ind_cpxs: ∀h,o,G,L. ∀R:predicate term.
                     (∀T1. ⦃G, L⦄ ⊢ ⬈*[h, o] 𝐒⦃T1⦄ →
-                          (â\88\80T2. â¦\83G, Lâ¦\84 â\8a¢ T1 â¬\88*[h] T2 â\86\92 (T1 â\89¡[h, o] T2 → ⊥) → R T2) → R T1
+                          (â\88\80T2. â¦\83G, Lâ¦\84 â\8a¢ T1 â¬\88*[h] T2 â\86\92 (T1 â\89\9b[h, o] T2 → ⊥) → R T2) → R T1
                     ) →
                     ∀T. ⦃G, L⦄ ⊢ ⬈*[h, o] 𝐒⦃T⦄ → R T.
 #h #o #G #L #R #IH #T #HT