X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fdelayed_updating%2Fsubstitution%2Flift_constructors.ma;h=3bd7b43bc02bf7ce5d7e162a11305e6419ce66b3;hb=f8cbadc01cae834f65cf7e0c8fbb0992434e91ff;hp=772c837fb2866bfc1d3f3c7b9c80fefd2c7114cc;hpb=d54b569f6bf95945a851455c0a13b08c51ddce60;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/delayed_updating/substitution/lift_constructors.ma b/matita/matita/contribs/lambdadelta/delayed_updating/substitution/lift_constructors.ma
index 772c837fb..3bd7b43bc 100644
--- a/matita/matita/contribs/lambdadelta/delayed_updating/substitution/lift_constructors.ma
+++ b/matita/matita/contribs/lambdadelta/delayed_updating/substitution/lift_constructors.ma
@@ -12,7 +12,7 @@
 (*                                                                        *)
 (**************************************************************************)
 
-include "delayed_updating/substitution/lift_prototerm_id.ma".
+include "delayed_updating/substitution/lift_prototerm_eq.ma".
 include "delayed_updating/substitution/lift_uni.ma".
 include "delayed_updating/syntax/prototerm_constructors.ma".
 
@@ -24,28 +24,24 @@ lemma lift_iref_bi (t1) (t2) (n):
 qed.
 
 lemma lift_iref_sn (f) (t:prototerm) (n:pnat):
-      (𝛗f@❨n❩.↑[⇂*[n]f]t) ⊆ ↑[f](𝛗n.t).
-#f #t #n #p * #q * #r #Hr #H1 #H2 destruct
-@(ex2_intro … (𝗱n◗𝗺◗r))
+      (𝛗f@❨n❩.t) ⊆ ↑[f](𝛗n.t).
+#f #t #n #p * #q #Hq #H0 destruct
+@(ex2_intro … (𝗱n◗𝗺◗q))
 /2 width=1 by in_comp_iref/
 qed-.
 
 lemma lift_iref_dx (f) (t) (n:pnat):
-      ↑[f](𝛗n.t) ⊆ 𝛗f@❨n❩.↑[⇂*[n]f]t.
+      ↑[f](𝛗n.t) ⊆ 𝛗f@❨n❩.t.
 #f #t #n #p * #q #Hq #H0 destruct
 elim (in_comp_inv_iref … Hq) -Hq #p #H0 #Hp destruct
-/3 width=1 by in_comp_iref, in_comp_lift_bi/
+/2 width=1 by in_comp_iref/
 qed-.
 
 lemma lift_iref (f) (t) (n:pnat):
-      (𝛗f@❨n❩.↑[⇂*[n]f]t) ⇔ ↑[f](𝛗n.t).
+      (𝛗f@❨n❩.t) ⇔ ↑[f](𝛗n.t).
 /3 width=1 by conj, lift_iref_sn, lift_iref_dx/
 qed.
 
 lemma lift_iref_uni (t) (m) (n):
       (𝛗(n+m).t) ⇔ ↑[𝐮❨m❩](𝛗n.t).
-#t #m #n
-@(subset_eq_trans … (lift_iref …))
-<tr_uni_pap >nsucc_pnpred <tr_tls_succ_uni
-/3 width=1 by lift_iref_bi, lift_term_id/
-qed.
+// qed.