X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fstatic%2Faaa_aaa.ma;h=f6224a96ef8efe7702283ad9757e0a4ec52604bf;hp=7c3645d2245eef3824d5365bb7a50e71fb7f9106;hb=222044da28742b24584549ba86b1805a87def070;hpb=598a5c56535a8339f6533227ab580aff64e2d41c

diff --git a/matita/matita/contribs/lambdadelta/basic_2/static/aaa_aaa.ma b/matita/matita/contribs/lambdadelta/basic_2/static/aaa_aaa.ma
index 7c3645d22..f6224a96e 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/static/aaa_aaa.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/static/aaa_aaa.ma
@@ -12,28 +12,27 @@
 (*                                                                        *)
 (**************************************************************************)
 
-include "basic_2/substitution/ldrop_ldrop.ma".
 include "basic_2/static/aaa.ma".
 
 (* ATONIC ARITY ASSIGNMENT ON TERMS *****************************************)
 
-(* Main properties **********************************************************)
+(* Main inversion lemmas ****************************************************)
 
 theorem aaa_mono: ∀G,L,T,A1. ⦃G, L⦄ ⊢ T ⁝ A1 → ∀A2. ⦃G, L⦄ ⊢ T ⁝ A2 → A1 = A2.
 #G #L #T #A1 #H elim H -G -L -T -A1
-[ #G #L #k #A2 #H
-  >(aaa_inv_sort … H) -H //
-| #I1 #G #L #K1 #V1 #B #i #HLK1 #_ #IHA1 #A2 #H
-  elim (aaa_inv_lref … H) -H #I2 #K2 #V2 #HLK2 #HA2
-  lapply (ldrop_mono … HLK1 … HLK2) -L #H destruct /2 width=1/
-| #a #G #L #V #T #B1 #A1 #_ #_ #_ #IHA1 #A2 #H
-  elim (aaa_inv_abbr … H) -H /2 width=1/
-| #a #G #L #V1 #T1 #B1 #A1 #_ #_ #IHB1 #IHA1 #X #H
-  elim (aaa_inv_abst … H) -H #B2 #A2 #HB2 #HA2 #H destruct /3 width=1/
+[ #G #L #s #A2 #H >(aaa_inv_sort … H) -H //
+| #I1 #G #L #V1 #B #_ #IH #A2 #H
+  elim (aaa_inv_zero … H) -H #I2 #K2 #V2 #H #HA2 destruct /2 width=1 by/
+| #I1 #G #L #B #i #_ #IH #A2 #H
+  elim (aaa_inv_lref … H) -H #I2 #K2 #H #HA2 destruct /2 width=1 by/
+| #p #G #L #V #T #B1 #A1 #_ #_ #_ #IH #A2 #H
+  elim (aaa_inv_abbr … H) -H /2 width=1 by/
+| #p #G #L #V1 #T1 #B1 #A1 #_ #_ #IHB1 #IHA1 #X #H
+  elim (aaa_inv_abst … H) -H #B2 #A2 #HB2 #HA2 #H destruct /3 width=1 by eq_f2/
 | #G #L #V1 #T1 #B1 #A1 #_ #_ #_ #IHA1 #A2 #H
   elim (aaa_inv_appl … H) -H #B2 #_ #HA2
   lapply (IHA1 … HA2) -L #H destruct //
 | #G #L #V #T #A1 #_ #_ #_ #IHA1 #A2 #H
-  elim (aaa_inv_cast … H) -H /2 width=1/
+  elim (aaa_inv_cast … H) -H /2 width=1 by/
 ]
 qed-.